Bridge Transducer 4-20ma Transmitter

Signal Acquisition

Precision Instrumentation

Precision Measurement

Instrumentation AmplifiersSignal Acquisition

Instrumentation AmplifiersSignal Acquisition

IA Bro.qk 8/11/99 10:32 AM Page 2

H i g h S p e e d S o l u t i o n s

This brochure provides an overview of Burr-Brown’s high-speed product

line. Additional product information in the form of data sheets or

applications bulletins can be obtained from either the FaxLine or the

Burr-Brown website (www.burr-brown.com).

P r e c i s i o n S i g n a l A c q u i s i t i o n S o l u t i o n s

Burr-Brown's comprehensive line of precision instrumentation amplifiers

offers signal acquisition solutions for a wide array of applications

including Industrial Control, Audio, Medical Instrumentation and

Portable Equipment.

• Difference Amplifiers—a ubiquitous building block, the

most basic circuit used to measure a differential

signal in the presence of common-mode voltage.

• Instrumentation Amplifiers —the benchmark

amplifier used for precision signal acquisition.

Their symmetrical, high-impedance inputs extract

signals from common-mode errors and noise.

• Programmable-Gain Amplifiers—provide digital

control of gain for improved accuracy and extended dynamic range.

• 4-20mA Transmitters—send analog signals over great distances

without loss of accuracy.

I InstrumentationAmplifiers

®

Burr-Brown Corporation

IA Bro.qk 8/11/99 10:32 AM Page 3

N E W !

Low Cost, Precision Difference Amplifiers

The INA133 precision unity gain difference amplifier brings improvedperformance to this versatile circuit building block. Its highperformance op amp and precision laser-trimmed resistors provideexcellent common-mode rejection and gain accuracy. Its output swingto 1V of the rails and low quiescent current (1mA) are well-suited tomodern designs. A dual version, INA2133, saves space and lowerscost.

A companion product, the INA143, provides a differential gain of 10or 1/10. It can also be configured for single-input gains of +10, –10,+11, or 1/10, and is also offered in a space-saving dual version, theINA2143.

www.burr-brown.comDDifference Amplifiers

High Voltage Difference Amplifiers

The INA146 provides high common-mode voltage range—far beyondits power supply rails. Its precision 10:1 feedback network dividesdown input voltages, handling up to ±100V common-mode signals on±12V supplies (or 40V common-mode on a single 5V supply). Gaincan be accurately programmed with external resistors. It’s great formeasuring voltages on current shunts!

The INA145 has a unity-gain difference amp input stage with the sameresistor-programmed output gain. The INA145 and INA146 add a newdimension to the versatility of the difference amp.

INA145G = 1 (10kΩ/10kΩ)

INA146

Low Power, Rail-to-Rail, Difference Amp

The INA152 is a general purpose microsize difference amplifieroptimized for battery powered applications. It offers smallest size andwidest output swing of any difference amplifier.

Operating on power supplies as low as 2.7V at 450µA, with the abilityto swing to within 25mV of the power supply rails, the INA152 is anexcellent choice for battery–powered instrumentation applications. It is available in a tiny MSOP-8 package.

IA Bro.qk 8/11/99 10:33 AM Page 4

FET-Input Instrumentation Amplifier

The INA121 is a low power, FET-input instrumentation amplifier. FET-input IAs reduce errors and noise when amplifying signals fromhigh impedance sources.

The INA121 offers lower power (450µA), higher accuracy, and lowercost than previous FET instrumentation amplifiers.

The combination of low cost, low power and low input bias currentmake the INA121 an excellent choice for a wide variety of industrial,test instrumentation and medical applications including ECG andEEG monitoring systems.

Single Supply, microPower, Instrumentation Amplifier

The INA122 micropower, single supply instrumentation amplifier isideal for battery–powered applications. Operating on a mere 60µA, itis the lowest power instrumentation amplifier available. Its wideoutput voltage swing (150mV to the rails) and wide power supplyrange (2.2V to 36V single supply) make it a versatile performer.

Special circuitry allows its input common-mode voltage to extend tothe negative rail (or single supply ground)—a feat that cannot beduplicated with discrete circuits using single supply op amps.

The INA122 is ideal for a wide range of micropower, single supplyapplications in general data acquisition, industrial and medicalinstrumentation.

Single Supply, CMOS, Instrumentation Amplifier

The INA155 is a single supply, CMOS IA with rail-to-rail output andprovides fixed gains of 10 and 50 CMOS inputs provide very highinput impedance low input bias current.

The INA155 operates on supplies from 2.5V to 5.5V and its outputswings to within 10mV of either rail. With 6V/µs slew rate, it caneasily drive CDAC A/D converters.

Its combination of low power, high speed, and low noise make theINA155 well suited for portable, single supply applications.

INA155

VIN VO

VIN

RGRG G = 10 no connectionG = 50 pin connected

200kΩRef

A1A2

22.2kΩ

22.2kΩ

200kΩ

IInstrumentation Amplifiers N E W !

®

Burr-Brown Corporation www.burr-brown.com

IA Bro.qk 8/11/99 10:33 AM Page 5

www.burr-brown.com

Temperature Measurement 4-20mA TransmitterThe XTR105 is a next-generation 4-20mA transmitter specificallydesigned for signal conditioning and linearizing 100Ω RTDs(Resistance Temperature Detectors). It’s also great for current-excited bridge sensors.

This easy-to-use one-chip solution includes on–board sensorexcitation (dual 800µA current sources), instrumentation amplifierand 4-20mA current-loop output.

This new generation device also includes a regulated 5.1V supply,powered from the 4-20mA loop, that can be used to power externalcircuitry.

Bridge Transducer 4-20mA Transmitter

The XTR106 is a next-generation 4-20mA transmitter designed forsignal conditioning and linearizing bridge sensors that measurepressure, weight, and strain.

The device is a one-chip solution that includes on–board bridgeexcitation circuitry (voltage excitation), instrumentation amplifier, and420mA current loop output.

The XTR106 has a regulated 5.1V supply, powered from the 4-20mAloop, that can be used for external circuitry.

High Impedance RTD 4-20mA Transmitter

The XTR112 and XTR114 are next-generation 4-20mA transmittersdesigned for signal conditioning and linearizing high impedance (upto 10kΩ) RTDs and bridge sensors.

The device is a one-chip solution that includes on-board circuitry for exciting the RTD or bridge (XTR112—dual 250µA, XTR114—dual 100µA current sources), amplifying the RTD signal, andtransmitting the signal over a standard 4-20mA loop.

Each has a regulated 5.1V supply, powered from the 4-20mA loop,that can be used for external circuitry.

44-20mA Transmitters N E W !

Compared to other 4-20mA devices, the XTR105, XTR106 XTR112 and XTR114 offer more functionality,

better loop compliance voltage, lower cost and a smaller package.

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DDifference AmplifiersThe difference amplifier is a closed–loop fixed–gain block that allows the acquisition of signals in the presence

of ground loops and noise. These versatile devices can be used in a wide variety of circuit configurations.

Burr-Brown offers difference amplifiers for precision general purpose, audio, low power, high speed and high common-mode

voltage applications. Also available are dual difference amplifiers—saving space and reducing cost per channel.

®

Difference Amplifier Topology

The basic difference amplifier employs an op amp and fouron-chip precision matched resistors.

The INA132 operates on a single 2.7V to 36V supply andconsumes only 160µA. It can be configured to provide a differential gain of 1 or –1, or single-ended gains of +1, –1,+1/2, or –1/2.

The output signal is referenced to the Ref pin which is generallygrounded. The output sense pin can be connected at the load toreduce gain error.

Since the resistor network divides down the input voltages,difference amplifiers can operate with input signals that exceedthe power supplies.

INA132

R140kΩ

V–

Sense

V+

V2

VOUT = V3 – V2V3

R240kΩ

R340kΩ

R440kΩ

Ref

–15V

–In = V2

+In = V3

+15V

±200V

Load

ShuntResistor

VOUT = V3 – V2

R1380kΩ

R3380kΩ

R521.1kΩ

R2380kΩ

R420kΩ

INA117

High Voltage Difference Amplifier

A five-resistor version of the simple difference amplifier resultsin a device that can operate with very high levels ofcommon–mode voltage—far beyond the power supply rails.

The INA117 can sense differential signals in the presence ofcommon–mode voltages as high as ±200V while being poweredfrom ±15V.

This device is very useful in measuring current from a highvoltage power supply through a shunt resistor.

Burr-Brown Corporation www.burr-brown.com

IA Bro.qk 8/11/99 10:34 AM Page 7

Difference AmplifiersCommon-Mode Output Supply Noise

Product Range Swing CMRR IQ/Ch. Voltage BW at 1kHz PriceSingle Dual Description Gain (V/V) (V) min(1) (V) min(1) (dB) min (±mA) typ Range (V) (MHz) typ (nV/ Hz) Packages (1kpcs)

INA105 Precision, General Purpose, G=1 1 ±20 ±10 72 1.5 ±5 to ±18 1 60 SO-8, DIP-8 $3.77

INA106 Precision, General Purpose, G=10 10 ±11 ±10 86 1.5 ±5 to ±18 5 30 SO-8, DIP-8 $4.67

INA117 ±200V Common-Mode, ±500 Protected 1 ±200 ±10 86 1.5 ±5 to ±18 200kHz 550 SO-8, DIP-8 $5.48

INA132, INA2132 Single Supply, Low Cost, Low Power 1 +28, –15 +13.5, –14 76 0.16 +2.7 to +36 300kHz 65 SO-8, DIP-8 $1.40

INA133, INA2133 High Speed, Precision, Low Cost, Low Power 1 ±27 +13.5, –14 80 0.95 +4.5 to +36 1.5 30 SO-8 $1.40

INA134, INA2134 0dB Audio Differential Line Receiver 1 ±25 ±13 74 2.4 ±4 to ±18 3.1 52 SO-8, DIP-8 $1.20

INA137, INA2137 ±6dB Audio Differential Line Receiver 0.5, 2 ±37 ±13 74 2.4 ±4 to ±18 4.0 26 SO-8, DIP-8 $1.20

INA143, INA2143 High Speed, Precision, Low Cost, Low Power 10, 0.1 ±14.9 +14, –14.75 80 0.95 +4.5 to +36 150kHz 30 SO-8 $1.40

INA145 Resistor-Programmed Gain, Low Power 1 to 1000 ±28 +14, –14.75 76 0.6 +2.7 to +36 500kHz 90 SO-8 $1.40

INA146 Resistor-Programmed Gain, Low Power 0.1 to 100 ±200 +13.5, –14 70 0.6 +2.7 to +36 500kHz 50 SO-8 $1.60

INA152 Single Supply, Low Power, Rail-to-Rail 1 +16, –18(2) ±8.9(2) 86 0.45 +2.7 to +20 700kHz 80 MSOP-8 $1.25

INA154 High Speed, Low Cost 1 ±25 ±13 80 2.4 ±4 to ±18 3.1 52 SO-8 $1.40

INA157 High Speed, Low Cost 0.5, 2 ±37.5 ±13 86 2.4 ±4 to ±18 4 26 SO-8 $1.40

Specifications listed in this table are intended as a guide to product selection. Some specifications are compiled or interpreted and conditions may vary. Refer to product data sheets for detailed specifications.

Bold Blue Italics indicates Future 1999 Product preliminary information. Recommended resale in USD; FOB USA.

Notes: (1) With ±15V power supply. (2) With ±9V supply.

Package Selection

INA132

INA2133

INA128

DIP-8

SO-8

SO-14

SOL-16MSOP-8

INA116

Our complete instrumentation amplifier product line is available in a wide range of popularpackages including surface-mount and through-hole types. Many are now available in newfine-pitch microPackages. Dual versions save space and provide lower cost in multi-channel applications.

Actual Package Sizes

Difference amps and instrumentation amps require precision resistors to perform theirintended function. A unity-gain difference amplifier constructed with a precision op ampand 1% film resistors yields a scant 46dB common-mode rejection…hardly precise! Even0.1% resistors cannot achieve the performance of a quality integrated difference ampbecause individual resistors do not drift the same over temperature. The on-chip laser-trimmed film resistors in these modern difference and instrumentation amps trackprecisely over temperature, maintaining accurate gain and CMR characteristics. Discretesolutions simply don't measure up!

Build vs Buy

COMING SOON!

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Burr-Brown Corporation

IInstrumentation AmplifiersThe instrumentation amplifier is a closed–loop adjustable gain block that allows the amplification of low-level signals in the

presence of common-mode errors and noise. Burr-Brown offers many types of instrumentation amplifiers including single supply,

low power, high speed, low noise, and low cost devices. These instrumentation amplifiers are available either in the traditional

3-op-amp or in the cost saving 2-op-amp topology.

The two-op-amp topology can provide wider common-mode range.Their simpler internal circuitry allows lower cost, lower quiescentcurrent and smaller package sizes. This topology, however, does notlend itself to gains less than four or five.

VIN

VIN

Over-VoltageProtection

Over-VoltageProtection

A1

A2

25kΩ

25kΩ

60kΩ 60kΩ

60kΩ60kΩ

A3

V

0.1µF

0.1µF

G = 1+50kΩ

RG

VO

Ref

RG

INA118

V

INA122

VIN

VIN

V0.1µF

0.22µF

G = 5 +200kΩ

RGA1

A1

100kΩ

100kΩ

25kΩ

25kΩ

Ref

RG

Single Supply

Dual SupplyV

VO = (VIN VIN) G

Single Supply Instrumentation Amplifiers

The INA122 is designed to offer exceptional performance whenoperating on a single power supply–particularly at low operatingvoltage. The graph depicts the allowable common-mode inputvoltage versus output voltage for the INA122 compared to theINA128. Special input buffer circuitry extends the linear inputcommon-mode voltages very close to ground (or negative rail ondual supplies).

Instrumentation Amplifier Topologies

The three-op-amp topology is the benchmark for instrumentationamplifier performance. These devices provide a wide gain range(down to G=1) and generally offer highest performance.Symmetrical inverting and non-inverting gain paths provide bettercommon-mode rejection at high frequencies. Some types usecurrent–feedback type input op amps which maintain excellentbandwidth in high gain.

Inpu

t Com

mon

Mod

e Vo

ltage

4

3

2

1

00 1 2 3 4 5

Output Voltage

Vs = +5VVREF = 2.5V, G = 1Vs = +5VVREF = 2.5V, G = 1

www.burr-brown.com

IA Bro.qk 8/11/99 10:34 AM Page 9

Bipolar Input Instrumentation Amplifiers

FET Input Instrumentation Amplifiers

Digital Programmable Gain Instrumentation Amplifiers

Instrumentation Amplifiers


Bold Blue Italics indicates Future 1999 Product preliminary information.

Recommended resale in USD; FOB USA.

Common-Mode Output Supply NoiseProduct Range Swing CMRR IQ/Ch. Voltage BW at 1kHz Packages PriceSingle Description Gain (V/V) (V) min (V) min (dB) min (±mA) Range (V) (kHz) (nV/ Hz) (1kpcs)

INA110 Pin Programmed G=1, 10, 200, 500, Fast Settling 1, 10, 200, 500 (V+)–5 to (V–)+5 (V+)–5 to (V–)+5 106 3 ±6 to ±18 470 10 DIP-16, SOL-16 $6.60

INA111 FET Input, Fast Settling, High Speed 1 to 10,000 (V+)–5 to (V–)+5 (V+)–4 to (V–)+4 106 3.3 ±6 to ±18 450 10 DIP-8, SOL-16 $3.91

INA116 FET Input, Lowest Bias Current, Low Power 1 to 1000 (V+)–4 to (V–)+4 (V+)–1 to (V–)+0.35 86 1 ±4.5 to ±18 70 28 DIP-16, SOL-16 $3.95

INA121 FET Input, Lowest Cost, Lowest Power 1 to 10,000 (V+)–1.2 to (V–)+2.1 (V+)–1.5 to (V–)+1 96 450µA ±2.25 to ±18 50 20 DIP-8, SO-8 $3.30

INA155 Single Supply, Low Power, Rail-to-Rail Output 10, 50 (V+)–0.6 to (V–)+0.1 (V+)–0.05 to (V–)+0.05 78 1.7 +2.7 to +5.5 350 38 MSOP-8, SO-8 $1.40

Common-Mode Output Supply NoiseProduct Range Swing CMRR IQ/Ch. Voltage BW at 1kHz Packages PriceSingle Dual Description Gain (V/V) (V) min (V) min (dB) min (±mA) Range (V) (kHz) (nV/ Hz) (1kpcs)

INA103 Lowest Noise, Low Distortion, Audio Quality 1 to 1000 (V+)–4 to (V–)+4 ((V+)–3.5 to (V–)+3.5 100 9 ±9 to ±25 800 1 DIP-16, SOL-16 $4.60

INA114 Precision 1 to 10,000 (V+)–4 to (V–)+4 (V+)–1.5 to (V–)+1.5 110 2.2 ±2.25 to ±18 10 11 DIP-8, SOL-16 $3.55

INA115 Precision, Additional Internal Connections 1 to 10,000 (V+)–4 to (V–)+4 (V+)–1.5 to (V–)+1.5 110 2.2 ±2.25 to ±18 10 11 SOL-16 $3.95

INA118 Single Supply, Precision, Low Power 1 to 10,000 (V+)–1 to (V–)+1.1 (V+)–1 to (V–)+0.3 107 350µA ±1.35 to ±18 70 10 DIP-8, SO-8 $3.73

INA122 Single Supply, microPower, Rail-to-Rail Out 5 to 10,000 (V+)–5 to (V–)+0.3 (V+)–0.1 to (V–)+0.15 83 60µA +2.2 to +36 5 60 DIP-8, SO-8 $2.50

INA125 Bridge Sensor Solution, Internal Reference 4 to 10,000 (V+)–4.8 to (V–)+4.3 (V+)–1.7 to (V–)+1 100 460µA ±1.35 to ±18 4.5 38 DIP-16, SOL-16 $2.10

INA126, INA2126 Low Cost, Low Power, microPackage, Dual 5 to 10,000 (V+)–3.75 to (V–)+3.75 (V+)–0.9 to (V–)+0.9 83 175µA ±1.35 to ±18 9 35 DIP-8, SO-8, MSOP-8 $1.47

INA128, INA2128 General Purpose, Precision, High CMRR, Dual 1 to 10,000 (V+)–3 to (V–)+3 (V+)–1.4 to (V–)+1.4 120 700µA ±2.25 to ±18 200 8 DIP-8, SO-8 $3.31

INA129 AD620 Equivalent, General Purpose, Precision 1 to 10,000 (V+)–3 to (V–)+3 (V+)–1.4 to (V–)+1.4 120 700µA ±2.25 to ±18 200 8 DIP-8, SO-8 $3.31

INA131 Fixed Gain = 100 100 (V+)–4 to (V–)+4 (V+)–1.5 to (V–)+1.5 110 2.2 ±2.25 to ±18 10 12 DIP-16, SOL-16 $3.55

INA141, INA2141 Pin Programmed G = 10, 100, AD621 Equir. 10, 100 (V+)–2 to (V–)+2 (V+)–1.4 to (V–)+1.4 120 700µA ±2.25 to ±18 200 8 DIP-16, SOL-16 $3.31

Common-Mode Output Supply NoiseProduct Range Swing CMRR IQ/Ch. Voltage BW at 1kHz Packages PriceSingle Description Gain (V/V) (V) min (V) min (dB) min (±mA) Range (V) (kHz) (nV/ Hz) (1kpcs)

PGA103 Single-Ended Input 1, 10, 100 — (V+)–3.5 to (V–)+3.5 — 2.6 ±4.5 to ±18 250 11 DIP-8, SO-8 $3.90

PGA202, PGA203 Fast Settling, Constant Bandwidth 1, 10, 100, 1000 / 1, 2, 4, 8 (V+)–5 to (V–)+5 (V+)–5 to (V–)+5 92 6.5 ±6 to ±18 1000 12 DIP-14 $7.28

PGA204, PGA205 Precision 1, 10, 100, 1000 / 1, 2, 4, 8 (V+)–4.5 to (V–)+4.5 (V+)–1.5 to (V–)+1.5 110 5.2 ±4.5 to ±18 10 13 DIP-16, SOL-16 $6.82

PGA206, PGA207 FET-Input, High Speed 1, 2, 4, 8 / 1, 2, 5, 10 (V+)–4 to (V–)+4 (V–)+4 to (V+)–4 80 ±11 ±4.5 to ±18 600 18 DIP-16, SOL-16 $10.13

COMING SOON!

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4-20mA Topologies

Burr-Brown offers two basic types of two-wire 4-20mAtransmitters—current excitation or voltage excitation. The XTR105,XTR112, and XTR114 provide current sources for exciting RTDs andbridges. The XTR106 provides voltage excitation for strain gagesand pressure sensor bridges.

Both types include linearization circuitry that can reduce sensorerror by as much as 20:1. Linearization is accomplished by varyingthe sensor excitation current or voltage.

4 Burr-Brown Corporation

The 4-20mA transmitter provides a versatile instrumentation amplifier input with a current loop output. These devices also

include scaling, offsetting, sensor excitation and linearization circuitry. A current receiver, RCV420, is also available. This device

converts the transmitted current to a voltage. The two devices form a complete 4-20mA system that allows the accurate transmission

of analog signals over long distances.

4-20mA System

A complete 4-20mA system is shown using an XTR106 and theRCV420.

Such a system is capable of measuring temperature or pressure ata distant location without a local power source. The sensor signal isamplified, linearized and transmitted as a current to a monitoringlocation. The signal is received by the RCV420 and scaled from the4-20mA line into a voltage between 0 and 5V.

Power for this entire system is supplied from the receiving side ofthe current loop. Two wires supply power to the transmitter circuitryand send the current-mode signal to the distant receiver.

An on-chip voltage regulator is provided for conveniently poweringexternal circuitry. All circuitry is powered from the two-wire currentloop used to transmit the signal. No power supply is required at thetransmitter site.

XTR106 XTR105

XTR106

4-20 Transmitter Devices

IA Bro.qk 8/11/99 10:35 AM Page 11

Loop Span Error Output CMRR AdditionalSensor Sensor Voltage Full Scale (unadj.) Zero Error 60Hz (dB) Power Packages Price

Product Description Linearization Excitation Range (V) Input Range Output Range (%) max (µA) ±max min Available (1kpcs)

XTR101 2-Wire Selectable In/Out Range — 2 x 1mA 11.6 to 40 5mV to 1V 4-20mA 5 30µ 90 — DIP-14, SOL-16 $7.25

XTR103 2-Wire, 100Ω RTD 2 x 800µA 9 to 40 5mV to 1V 4-20mA 1 6µ 80 — DIP-16, SOL-16 $7.16

XTR104 2-Wire Bridge 5V 9 to 40 5mV to 1V 4-20mA 1 50µ 80 — DIP-16, SOL-16 $7.16

XTR105 2-Wire, 100Ω, VREG, Low Cost 2 x 800µA 7.5 to 36 5mV to 1V 4-20mA 0.2 25µ 86 5.1V at 1mA DIP-14, SO-14 $3.75

XTR106 2-Wire Bridge, VREG, Low Cost 5V, Adj. 7.5 to 36 5mV to 1V 4-20mA 0.2 25µ 86 5.1V at 1mA DIP-14, SO-14 $3.75

XTR110 3-Wire, Selectable In/Out Ranges — 10V 13.5 to 40 0 to 10V Resistor Set 0.2 16µ — — DIP-16 $6.35

XTR112 2-Wire, 1,000Ω RTD, VREG, Low Cost 2 x 250µA 7.5 to 36 5mV to 1V 4-20mA 0.2 25µ 86 5.1V at 1mA DIP-14, SO-14 $3.75

XTR114 2-Wire, 10kΩ RTD, VREG, Low Cost 2 x 100µA 7.5 to 36 5mV to 1V 4-20mA 0.2 25µ 86 5.1V at 1mA DIP-14, SO-14 $3.75

RCV420 4-20mA Current Loop Receiver (10V Ref) ± 18 4-20mA 0 to 5V — 1.25mV 86 — DIP-16 $3.34

2-Wire Transmitters

4-20mA Transmitters

4-20mA Receiver


Recommended resale in USD; FOB USA.

Sensor LinearizationKey to the accuracy of several of these 4-20mA transmitters is their ability tolinearize the output of many sensors. The platinum RTD, for example, has avery predictable resistance vs temperature characteristic. Its uncompensatedresponse, however, has a substantial non linearity (several percent,depending on the range) that peaks at the midpoint. Components notedabove include circuitry to dramatically improve the sensor nonlinearity andreduce the total error 40 to 1 (see corrected response). The XTR103,XTR105, XTR112 and XTR114 are optimized for signal conditioning andlinearization of RTD temperature sensors and some bridges.

Ratiometric sensors of many types (those whose output is proportional to an excitation voltage or current) can be linearized with these techniques.Voltage-excited bridge sensors (strain gages, for example) often have anupward or downward bowing response (see right). The XTR104 and XTR106can substantially improve the accuracy of these devices. They achieve up toa 20:1 improvement in transfer function linearity.

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© 1999 Burr-Brown Corporation LI-537 Printed in U.S.A. July, 1999

International Subsidiary Offices

France: Le Chesnay (33) 1 39 23 82 82

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Switzerland: Zürich (41) 1 439 10 20

United Kingdom: Watford (44) 1923 233837

Corporate Headquarters

Fast Product Info: (800) 548-6132

Telephone: (520) 746-1111

Web Address: http: //www.burr-brown.com/

Mailing Address:

P.O. Box 11400, Tucson, AZ 85734-1400

Headquarters:

6730 S. Tucson Blvd., Tucson, AZ 85706-1400

U.S. Regional Sales Offices

California: Santa Clara (408) 982-8900

Illinois: Bloomington (630) 529-6477

New Hampshire: Nashua (603) 888-1999

New York: Hauppauge (516) 273-5757

Texas: Dallas (972) 783-4555

C Burr-BrownCorporate Profile

Burr-Brown Corporation designs, manufactures, and

markets a broad line of analog and mixed-signal integrated

circuits used in the processing of real-world electronic

signals. These products are used in a wide range of markets

and applications, including industrial and process control,

telecommunications, test and measurement, medical and

scientific instrumentation, medical imaging, digital audio

and video, personal computing, and multimedia.

Burr-Brown’s product strategy is to design innovative,

proprietary products which bring a very high level of

functional value to our customers’ applications. There are

currently over 1200 products in our portfolio. We produce

both standard products which are used in a broad range of

applications, and specially developed products optimally

suited for emerging, fast growth, target applications such as

audio signal processing and broadband communications.

IA Bro.qk 8/11/99 10:29 AM Page 1

Bridge Transducer 4-20ma Transmitter

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