SIMPLY SMARTER™

TEST AND MEASUREMENT EQUIPMENT SOLUTIONS

2

Test and Measurement Solutions

Introduction• Q2 SOQ for test and measurement

solutions from Intersil

Purpose• Introduce Intersil solutions for test and

measurement equipment

Objectives• Overview of several sub-blocks of test and

measurement• Present Intersil feature products with

select application circuits

Content• 19 Pages

Learning time• 30-40 minutes

3

InstrumentationInstrumentation Basics• Primarily digitizing systems• High degree of similarity in signal chains• Each application may have one or two unique or critical

differentiators.

Signal Chain• Amplifier + Filter + ADC, followed by an FPGA• DCPs used to trim and calibrate channel gain, offset.• Typically, signal chain components are chosen such that the

ADC is the performance limit for resolution/dynamic range & linearity.

• Input signals can be AC or DC coupled – may impact amplifier choice.

FDA• Typically require lower noise and better linearity than ADC• Can be used to perform single-ended to differential

conversion• General Receiver Chain application – Differential I/O gain

block

ADC• Sample rate sets the analysis bandwidth.• Resolution (SNR/ENOB) sets the dynamic range.• Linearity (SFDR) is important when large and small-scale

signals present simultaneously.

Power• Multi output voltage solutions for powering FPGAs• LDOs for low noise, low EMI

Data Acquisition

USB Scope

 

Spectrum Analyzer

Digital Multimeter

Products Highlighted:• High speed data converters• Fully-differential amps (FDAs)• Digital potentiometers (DCPs)• Precision amps• Precision voltage references• Current sense amps• Low dropout regulators (LDOs)• Synchronous buck regulators• Voltage supervisors

4

Data Acquisition

Category

Product Description

DC/DC ISL9440ISL85033

Triple Synchronous Buck PWM ControllerDual Standard Buck Regulator

LDO ISL80102 High Performance, 2A LDO

DCP ISL224x4 Single, Dual, or Quad 256-tap SPI DCP

FDA ISL55210ISL55211

Low-Power Differential AmplifierFixed-Gain, Low Power Differential Amplifier

ADC ISLA216P25ISLA214P50ISLA112P50ISLA224P25

16-Bit, 250 MSPS ADC14-Bit, 500 MSPS ADC12-Bit, 500 MSPS ADCDual 14-Bit, 250 MSPS ADC

Data Acquisition Basics• General purpose digitizing systems –

broad set of end uses• High segmentation - numerous sample-

rate, resolution, channel-count combinations

• Performance of signal chain – linearity and dynamic range -- is usually critical.

• Size and power can often be differentiators.

Signal Chain Selection• Best-in-class linearity and dynamic range

(ISL55210/1, ISLA112P50, ISLA214P50)

• Multi-channel support (ISL224x4, ISLA112P50, ISLA214P50, ISLA216P25, ISLA224P25)

• Max (sample rate, resolution) usually a strong selling point (ISLA216P25, ISLA214P50)

• Pin-compatibility across sample-rate/resolution allows design re-use and speeds time-to-market (ISLA214P50, ISLA216P25)

• Temperature stability for accurate signal conditioning (gain/phase/offset/filter cutoff) (ISLA224x4)

Power• Multi output voltage solutions for

powering Processors or FPGA– ISL9440B Triple output controller and

single LDO controller generates the rails for a FPGA.

– ISL80101 LDO family can reduce EMI in noise sensitive areas.

5

USB Scope

Category

Product(s) Description

Supervisor

ISL88011 5 Ld Voltage Supervisor

ADC ISLA118P50ISLA110P50ISLA112P50

Low Power 8-Bit, 500MSPS ADCLow Power 10-Bit, 500MSPS ADCLow Power 12-Bit, 500MSPS ADC

DC/DC ISL8012ISL8014AISL8500ISL9104

High Efficiency, 2A Synchronous, Step-down ConvHigh Efficiency, 4A Synchronous, Step-down ConvStandard Buck PWM Regulator500mA, 4.3MHz Step-down Regulator

LDO ISL80101/3ISL9000

High Performance, 1A LDO/3A LDOHigh Performance, Dual 300mA LDO

MUX ISL59421 865MHz Bandwidth Multiplexing Amplifier

DCP ISL223x3ISL224x4

Single, Dual, or Quad 256-tap, I2C DCPSingle, Dual, or Quad 256-tap SPI DCP

VREF ISL60002 Precision, Ultra-low Power Vref

AMP EL5166ISL28138

1.4GHz Current Feedback Amplifier4.5MHz Single RRIO Op-Amp

FDA ISL55210ISL55211

Low-Power Differential AmplifierFixed-Gain, Low Power Differential Amplifier

USB Scope Basics• Wall powered – see data acquisition• USB powered – power consumption

limited by USB power budget• Power – Highest performance, maximum

functionality that fit within power budget• Good DNL required for time-domain

display• Good noise and linearity for frequency-

domain display

Signal Chain Selection• Ultra-low power & high performance

(ISL55210/1, ISLA110P50, ISLA118P50)

• Multi-channel support (ISL22xx4, ISLA110P50, ISLA118P50)

• Digital Gain – Use higher resolution ADC to enable software gain (ISLA112P50)

• Temperature stability for accurate signal conditioning (gain/phase/offset/filter cutoff) (ISLA224x4)

Power• Efficiency and size are the main focus.

– ISL9440B, ISL9104, ISL8033 are some of the products that can power the FPGA and also work well to generate the power to the amplifiers in the system.

• Current-limit protection for USB port (ISL80101A)

6

Spectrum Analyzer

Category

Products Description

DC/DC ISL8016ISL6124ISL8112

Synchronous Buck RegulatorIntegrated 4-channel Power Sequencing CntrlDual Output Synchronous Buck Controller

LDO ISL80101/2/3ISL9008A

Adjustable Current Limit, 1A/2A/3A LDOHigh Performance, 150mA LDO

DCP ISL22313/23/43

Single, Dual, and Quad 256-tap, I2C DCP

FDA ISL55210ISL55211

Low-Power Differential AmplifierFixed-Gain, Low Power Differential Amplifier

ADC ISLA216P25ISLA214P50ISLA214P25

16-Bit, 250 MSPS ADC14-Bit, 500 MSPS ADC14-Bit, 250 MSPS ADC

Spectrum Analyzer basics• Primarily frequency domain analysis• Performance of signal chain – linearity

and noise -- is usually critical.• Power consumption not an issue unless it

is handheld.

Signal Chain Selection• Best-in-class linearity and noise

performance (ISL55210/1, ISLA216P25, ISLA214P50, ISLA214P25)

• Maximum analysis bandwidth & high dynamic range (ISLA214P50, ISLA216P25)

• High accuracy signal conditioning (gain/phase/offset/filter cutoff) (ISLA223x4)

Power• Multi output voltage solutions for

powering Processors or FPGA– ISL9440B Triple output controller and

single LDO controller generates the rails for a FPGA.

– ISL80101 LDO family can reduce EMI in noise sensitive areas.

7

Digital Multimeter

Category

Product(s) Description

Amplifier

ISL28110/210ISL28118/218ISL28108/208 ISL28107/207ISL28117/217ISL28127/227ISL28133/233/433

Single/Dual, Low Noise JFET Op-AmpSingle/Dual,40V SS, RRO Op-AmpSingle/Dual,40V Low Power SS RRO Op-AmpSingle/Dual, Low Power Op-AmpSingle/Dual, Low Power/Low Noise Op-AmpSingle/Dual, Low Noise Op-AmpSingle/Dual/Quad, MicroPower Chopper Op-Amp

Current Sense Amplifier

ISL28005/6ISL28118/218ISL28108/208ISL28133/233/433

MicroPower, High/Low-Side Current Sense AmpSingle/Dual, 40V SS, RRO Op-Amp (Low Side)Single/Dual, 40V Low Power SS RRO Op-AmpSingle/Dual/Quad, MicroPower Op-Amp

VREF ISL21009ISL21007ISL21060ISL21070ISL21080

3ppm/°C, Low Noise, Low Power Reference3ppm/°C Low Voltage, Low Noise, Low Pwr Ref10ppm/°C Precision, Low Pwr Reference wi/SDLow Cost, 25µA ReferenceLow Cost, 1.5µA Reference

Power ISL9305HISL9003A

Dual High Fsw Buck + Dual LDOLow Noise LDO with Low IQ and High PSRR

Digital Multimeter basics• Analog Front-End - Signal conditioning

subsystem which amplifies or attenuates the analog signal (AC volts, DC volts, current, or resistance).

• Control and Data Processing - Executes measuring processes and controls interface with memory and peripheral devices.

• Memory/Peripheral Devices - Measurement results are stored in EEPROM or FLASH memory as a data log that can be uploaded to a PC via USB interface.

• Power Management and Conversion - converts the input battery power to run various functional blocks.

Signal Chain Selection• Best in Class – High Impedance (JFET)

Amplifier (ISL28110/210)• Low Side Current Sense –

(ISL28108/208, ISl28118/218)• Micro-Power Voltage References

(Precision ISL21007/09/60, Low Cost ISL21070/80)

Power• Efficiency and size are the main focus.

(ISL9305H, ISL9003A)

SIMPLY SMARTER™

Featured Products

9

ISLA214P50 & ISLA216P25: Industry’s Fastest 14/16-Bit ADCs

ISLA214P50 & ISLA216P25• Highest Sample Rate available for 14 & 16-bit

ADCs– Maximizes analysis bandwidth enabling faster spectral

sweeps and simplified tuning requirements• Best-in-Class SNR & Power

– Maximizes dynamic range at high sample rates– Minimizes power consumption and heat generation,

simplifying thermal and power system design, and enabling smaller, more compact systems

• Packed with Multi-Channel Support Features– Simplifies design of interleaved and multi-channel

systems, reducing cost and time to market• Pin-compatibility

– Allows both ADCs to use the same PCB, enabling design-reuse for increased product versatility and reduced costs

Device Resolution

(Bits)

Sample Rate

(MSPS)

SNR (dBFS

)

SFDR (dBc)

ENOB (bits)

IMD (dBFS

)

Power (mW)

ISLA214P50

14 500 72.7 84 11.7 88 835

ISLA216P25

16 250 75.0 87 12.1 94 786

6667686970717273747576

0 200 400 600

SNR (d

BFS

)

Input Frequency (MHz)

SNR vs. Input Frequency

ISLA214P50400MSPS

ISLA214P50500MSPS

Nearest Comp400MSPS

0

500

1000

1500

2000

2500

3000

ISLA214P50 Nearest Competitor

Pow

er (m

W)

Power Comparison

10

ISLA11xP50: Industry’s Best Low-Power 500MSPS ADCs

ISLA112P50, ISLA110P50, ISLA118P50• Highest Dynamic Range available for 8, 10 & 12-

bit, 500MSPS ADCs– Maximizes sensitivity of data acquisition and USB scopes

• Best-in-Class SNR / Power Combination– Maximizes dynamic range within limited power budget

• High resolution enables additional processing functionality (digital gain, high fidelity ffts)

– Maximizes number of channels supportable at required resolution (usually 8 to 10-Bits)

• Packed with Multi-Channel Support Features– Simplifies design of interleaved and multi-channel

systems, reducing cost and time to market.• Pin-compatibility

– Allows both ADCs to use the same PCB, enabling design-reuse for increased product versatility and reduced costs

Device Resolution (Bits)

Sample Rate

(MSPS)

SNR (dBFS)

SFDR (dBc)

ENOB (bits)

Power (mW)

ISLA112P50 12 500 65.9 86 10.7 455ISLA110P50 10 500 60.7 86 9.8 441ISLA118P50 8 500 49.9 68 8.0 428

11

ISL55210: Wideband, Low-Power, Ultra-High Dynamic Range Differential Amplifier• Key Performance Specs:

– 4.0 GHz Gain Bandwidth Product– Ultra-fast Slew Rate (5600 V/us)– Ultra-low distortion (-109dBc at 100MHz)– Lowest Input Noise (0.85nV/√Hz)– Exceptionally low power (115mW)

• Benefits for Instrumentation 4.0GHz GBWP can accommodate high

frequencies of interest Fast slew rate does not distort the signal Minimal performance degradation of ADCs up to

16-bit resolution

• Fixed Gain ISL55211 also

12

N DCPs in a Chain

ISL223x3/4x4: Single, Dual, and Quad 256-Tap DCPPart Number Decoder• ISL223X3– I2C Interface• ISL224X4– SPI Serial Interface• X=1,2,4 (Single, Dual, Quad respectively)

Key Specifications• Non Volatile, 256-Tap DCP• Terminal Voltage Range = -5.5V to 5.5V• Temp Coefficient = +50 ppm/oC (end to end)

+4 ppm/oC (ratiometric)• Operating Temp = -40oC to 125oC

Features• Total Resistance = 10kΩ, 50kΩ, 100kΩ• SPI Parts Have Daisy Chain Capability

Package• Single: MSOP-10• Dual: TSSOP-14 & 16 LD QFN• Quad: TSSOP-20 & 20 LD QFN

Current Sensing with Digital Gain & Offset Control

13

ISL28x33: MicroPower Op Amp

ISL28133/233/433 - MicroPower Chopper Stabilized RRIO Op AmpFeatures:• Very low offset voltage and low offset

voltage drift for accuracy• Rail-to-Rail Input/Output for both high side

and low side current sense application

VOS (max)

TCVOS

(max)IB

(max)en

@ 1kHz

GBW IS (max

)

VSTemp Range ESD

(HBM)

6µV 0.05µV/°C 180pA 65nV/√Hz

400kHz 25µA 1.65V to 6V -40°C to 125°C

4kV

ISL28133 (Single) ISL28233 (Dual) ISL28433 (Quad)Package: SC70-5, SOT23-5, µTDFN-8Price: $0.99 @ 1ku

Package: SOIC-8, MSOP-8, TDFN-8Price: $1.45 @ 1ku

Package: SOIC-14, TSSOP-14, Price: $2.66 @ 1ku

14

ISL60002: Industry’s Lowest Power Vref

FGA™ voltage references are extremely low power and fabricated on Intersil’s proprietary Floating Gate Analog technology.• Nano Power: 700nA max*• Low Noise: 30µVpp (0.1Hz to 10Hz)• Voltage Outputs: 1.024V, 1.2V, 1.25V, 1.8V,

2.048V, 2.5V, 2.6V, 3V, 3.3V• Iout: 7mA (Source) / 20mA (Sink)*• Operating Voltage: 2.7V* to 5.5V• Wide Operating Temperature: -40°C to +105°C*• Industry Standard Package: 3 lead SOT23

Grade Initial Accuracy

Tempco Price @ 1ku

ESD (HBM)

B – Grade 1.0 mV 20 ppm/°C $2.25 5.5kV

C – Grade 2.5 mV 20 ppm/°C $1.45 5.5kV

D – Grade 5.0 mV 20 ppm/°C $0.95 5.5kV

15

ISL28005/6: MicroPower Current Sense Amplifier

ISL28005/6 – MicroPower High/Low Side Current Sense Amplifier

Very High Accuracy Across

Vcm Range

-Parallel Input Stages enable Very High Accuracy across entire Vcm Range.

-Hysteretic Comparator controls operation

-Gain Error driven by Amplifier offset error matching and Rs Kelvin errors

Part Number ISL28005 ISL28006

Supply Voltage (V)Min 2.7 2.7Max 28 28

Input Common Mode Range (V)

Min 0 0Max 28 28

Vos Max @ 25°C µV 500 250Vos Max Temp µV 500 300

CMRR min Temp dB 105 105PSRR min Temp dB 90 90

Gain Range V/V 20, 50, 100

20, 50, 100,

Adj (20-100)

Gain Accuracy @ 25°C (%) 2 0.7

Gain Accuracy Temp (%) 3 1

Is Max @ 25°C µA 59 62Is Max Temp µA 59 62

GBW kHz 180 180TempRange °C -40 to 125 -40 to 125

Package   SOT23 SOT23Price @ 1kpcs   $0.75 $0.99

Excellent for low ohmic

measurements!

16

ISL80101A: LDO with adjustable current limit for USB port protectionISL80101A Key Features• Designed for accurate current

limiting (+/- 10% typ)• Soft-start limits the inrush

current during start-up• Input Voltage Range: 2.2V to 6V • Tight ±1.8% VOUT accuracy

over -40ºC<TJ<125ºC• Very fast load transient

response, excellent AC accuracy• Less than 1µA shutdown current

(typ)• PGOOD, Enable, Short-Circuit &

Reverse Current Protection, & Over-Temperature Shutdown Capability• Space saving 10-Ld 3x3 DFN

package

The current limit threshold of ISL80101A adjusted through a resister (Rset)

Can also be used to protect Fire Wire and other ports.

17

ISL9305: Dual High Fsw Buck + Dual LDO

Description• Dual High Fsw Buck + Dual Low VIN LDO• 3MHz fixed switching frequency • Dual 800mA or 1.5A(H version) output current for

the buck regulators • 300mA output current for the LDOs

Applications• Ideal for handheld Instrumentation as it provides

system power in one chip

Features• 3MHz Fsw on bucks reduces size & BOM cost.• I2C Interface control:

• Output Voltage selection on all 4 channels• Voltage stepping in 50mV steps for

buck regulators• 100mV steps for LDOs

• Power Up/Down sequencing on all 4 channels

• DCDCs In/Out Phase mode• PFM Ultrasonic Mode Selection • Programmable Slew rate control

• QFN Versions Released• CSP Versions to Release 05/11

18

ISL8016: High Efficiency 6A Int. FET Buck RegulatorDescription• Input Supply Voltage Range

– 2.7V to 5.5V• Output Voltage Range

– 0.8V to Vin• 6A Guaranteed O/P Current• Package – 20 Ld. 3x4 QFN

Features• Programmable Current Limit• Selectable Forced PWM and PFM Mode (Power

Save Mode)• Output Current Sharing Capability (multiple

ICs)• Adj. Fsw – 500kHz to 4Mhz & Fixed 1MHz

default• Synchronization to External Clock – Up to

4MHz• +/-10% Voltage Margining• EN and PGOOD • Internal Current Mode Compensation (for

default Fsw)• SYNC IN and SYNC OUT• Adj. Soft-Start• Start-up in Pre-biased Load

The big selling point for this part is the high efficiency overthe full current range and size of the solution.

This is best in class!

www.intersil.com