AD8475

PRODUCTION

Precision, Selectable Gain, Fully Differential Funnel Amplifier

Data Sheet (Rev. D) Product Selection Table
Part Models
9
1ku List Price
Starting From $2.34
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Part Details

  • Precision attenuation: G = 0.4, G = 0.8
  • Fully differential or single-ended input/output
  • Differential output designed to drive precision ADCs
    • Drives switched capacitor and Σ-Δ ADCs
    • Rail-to-rail output
  • VOCM pin adjusts output common-mode voltage
  • Robust overvoltage protection up to ±15 V (VS = +5 V)
  • Single supply: 3 V to 10 V
  • Dual supplies: ±1.5 V to ±5 V
  • High performance
    • Suited for driving 18-bit converters up to 4 MSPS
    • 10 nV/√Hz output noise
    • 3 ppm/°C gain drift
    • 500 μV maximum output offset
    • 50 V/μs slew rate
  • Low power: 3.2 mA supply current
AD8475
Precision, Selectable Gain, Fully Differential Funnel Amplifier
AD8475-FBL AD8475 Functional Block Diagram AD8475 Pin Configuration AD8475 Pin Configuration
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Documentation

Data Sheet 1

User Guide 1

Application Note 1

Technical Articles 1

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Hardware Ecosystem

Parts Product Life Cycle Description
AD8476
PRODUCTION Low Power, Unity Gain Fully Differential Amplifier & ADC Driver
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Tools & Simulations

LTspice 1

Models for the following parts are available in LTspice:

  • AD8475

Signal Chain Designer - BETA

Signal Chain Designer is a web-based tool designed to create and simulate complex precision signal chains. See your circuit’s performance before you commit to your PCB: transfer function, noise, power consumption, input range, and DC error. Quickly experiment with different parts and architectures. Signal chains can be exported to LTspice for further analysis.

Open Tool

ADI DiffAmpCalc™

ADI's new ADI DiffAmpCalc™ is a free, downloadable calculator for designing differential amplifier circuits. The tool is easy to use and features an interactive user interface to quickly get you up and running.

Open Tool

SPICE Model 1

LTspice

LTspice® is a powerful, fast and free simulation software, schematic capture and waveform viewer with enhancements and models for improving the simulation of analog circuits.

Evaluation Kits

EVAL-AD8475

AD8475 Evaluation Board

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Product Details

The board provides the user flexibility to configure the AD8475 in the desired gain (0.4 or 0.8) and to install the suitable input and load impedances.

 

The AD8475-EVALZ board is designed for 8 lead MSOP so that a user can easily evaluate system performance when the AD8475 is mated with any Analog Devices, Inc., SAR ADC. The board can be installed with SMB connectors that mate directly to the Pulsar® Analog-to-Digital Converter Evaluation Kit. See AD8475 data sheet available on line.

eval board
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EVAL-ADMX1002

Ultra-low Distortion Signal Generator Measurement Module

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Features and Benefits

  • Ultra-low distortion, high-resolution source
    • DC, 50Hz to 40kHz Frequency Range
    • Proprietary digital pre-distortion (DPD) algorithm
    • –130dBc THD @ 1kHz (typ.)
    • Arbitrary waveform generation (AWG) with on-board pattern memory
    • Differential (balanced) output up to 3.6VRMS
  • Fast pattern switching between multiple stored waveforms
  • Small form-factor (60mm x 40mm)
  • Low power, 1W typ. (quiescent)
  • SPI interface for integration into test and measurement systems

Product Details

The ADMX1002 is an ultra-low distortion sinewave and high-resolution arbitrary waveform generator. This high-performance module demonstrates a proprietary digital pre-distortion algorithm that reduces signal distortion below levels that can be achieved with high-performance digital-to-analog converters (DAC) and amplifiers alone. Its differential output can be set to common-mode levels often required to test high-performance analog-to-digital converters (ADC), audio codecs, and other audio ICs and systems. With an easy-to-use SPI interface and small-form factor, the ADMX1002 can be easily embedded into test systems, or simply used on the bench for measurement and characterization.

APPLICATIONS

  • High-end audio test
  • Analog-to-digital converter characterization and test
  • Sensor and transducer test
  • Frequency response and network analysis
  • ATE

eval board
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EVAL-ADMX1001

Ultra-low Distortion Signal Generator Measurement Module with Fully Differential Input Acquisition Channel

Buy Now View Details

Features and Benefits

  • Ultra-low distortion, high-resolution source
    • DC, 50Hz to 40kHz Frequency Range
    • Proprietary digital pre-distortion (DPD) algorithm
    • –130dBc THD @ 1kHz (typ.)
    • Arbitrary waveform generation (AWG) with on-board pattern memory
    • Differential (balanced) output up to 3.5VRMS
    • Fast pattern switching between multiple stored waveforms
  • Fully Differential input Acquisition Channel
  • Small form-factor (60mm x 40mm)
  • Low power, 1W typ. (quiescent)
  • SPI interface for integration into test and measurement systems

Product Details

The ADMX1001 is an ultra-low distortion sinewave and high-resolution arbitrary waveform generator with an acquisition channel. This high-performance module demonstrates a proprietary digital pre-distortion algorithm that reduces signal distortion below levels that can be achieved with high-performance digital-to-analog converters (DAC) and amplifiers alone. Its differential output can be set to common-mode levels often required to test high-performance analog-to-digital converters (ADC), audio codecs, and other audio ICs and systems. The signal generator and the acquisition channel can be individually controlled using separate, easy to use, SPI interfaces - combined with the module's small-form factor, the ADMX1001 can be easily embedded into test systems, or simply used on the bench for measurement and characterization.

APPLICATIONS

  • High-end audio test
  • Analog-to-digital converter characterization and test
  • Sensor and transducer test
  • Frequency response and network analysis
  • ATE
EVAL-AD8475
AD8475 Evaluation Board
EVAL-ADMX1002
Ultra-low Distortion Signal Generator Measurement Module
EVAL-ADMX100X-FMCZKIT - Angle View EVAL-ADMX100X-FMCZKIT - Top View ADMX1002 - Angle View ADMX1002 - Top View ADMX1002 - Bottom View
EVAL-ADMX1001
Ultra-low Distortion Signal Generator Measurement Module with Fully Differential Input Acquisition Channel
ADMX1001 - Top View ADMX1001 - Bottom View ADMX1001 - Angle View ADMX1001FMCZ - Top View ADMX1001FMCZ - Bottom View ADMX1001FMCZ - Angle View EVAL-ADMX100X-FMCZKIT - Angle View EVAL-ADMX100X-FMCZKIT - Top View

Reference Designs

Isolated Multichannel Data Acquisition Simplified Circuit
Isolated Multichannel Data Acquisition Simplified Circuit
EVAL-CN0385-FMCZ Evaluation Hardware
CN0385 Circuits from the lab

Isolated, Multichannel Data Acquisition System with PGIA for Single-Ended and Differential Industrial Level Signals

View Detailed Reference Design

Features and Benefits

  • Multichannel Isolated Data Acquisition System
  • Industrial Signal Levels
  • 18-bit, 2MSPS Conversion
  • 750kHz Channel Switching Rate

High Precision, 24-Bit ADC Driver for Industrial Signals
High Precision, 24-Bit ADC Driver for Industrial Signals
CN0310 Circuits from the lab

24-Bit, 250 kSPS Single-Supply Data Acquisition System

View Detailed Reference Design

Features and Benefits

  • 24-bit, 250kSPS ADC System
  • Industrial Signal Levels
  • Single Supply
High Common-Mode Voltage Bidirectional Isolated Current Monitor
High Common-Mode Voltage Bidirectional Isolated Current Monitor
CN0240 Circuits from the lab

Bidirectional Isolated High-Side Current Sense with 270 V Common-Mode Rejection

View Detailed Reference Design

Features and Benefits

  • +/- 270 V common mode voltage
  • Creates isolated supply for digital control
  • 1% accuracy, bidirectional current monitor system
  • Galvanic isolation protects processor
Photodiode Preamp System with Dark Current Compensation
Photodiode Preamp System with Dark Current Compensation
CN0272 Circuits from the lab

2 MHz Bandwidth PIN Photodiode Preamp with Dark Current Compensation

View Detailed Reference Design

Features and Benefits

  • High speed photodiode signal conditioning circuit
  • 91dB dynamic range and circuit consumes only 40 mA
  • Dark current compensation
  • Spectral range from 400 nm to 1050 nm
  • Well suited for portable high speed applications
Flexible Analog Front-End Circuit for Wide Industrial Range Signal Conditioning
Flexible Analog Front-End Circuit for Wide Industrial Range Signal Conditioning
CN0251 Circuits from the lab

24-Bit, 4.7 Hz, 4-Channel Analog Data Acquisiton System

View Detailed Reference Design

Features and Benefits

  • 4-channel wide dynamic range
  • Industrial signal levels
  • In-amp input stage for high CMR
Multichannel Data Acquisition Simplified Circuit
Multichannel Data Acquisition Simplified Circuit
EVAL-CN0345-SDZ Evaluation Hardware
CN0345 Circuits from the lab

Low Power, Multichannel Data Acquisition System with PGIA for Single-Ended and Differential Industrial-Level Signals

View Detailed Reference Design

Features and Benefits

  • 18-Bit 8-Channel Data Acquisition System
  • Single-ended and differential industrial signal levels
  • 750 kSPS per channel switching rate
  • 240mW at maximum sampling rate
Single-Ended-to-Differential ADC Driver
Single-Ended-to-Differential ADC Driver
CN0180 Circuits from the lab

Precision, Low Power, Single-Supply, Fully Integrated Differential ADC Driver for Industrial-Level Signals

View Detailed Reference Design

Features and Benefits

  • Industrial input voltage levels up to ±10V
  • Singled ended to differential interface to 18-bit SAR converter
  • Low power, total less than 22 mW
  • Single supply 5V rail
Multichannel Data Acquisition Circuit
Multichannel Data Acquisition Circuit
CN0269 Circuits from the lab

18-Bit, 1.33 MSPS, 16-Channel Data Acquisition System

View Detailed Reference Design

Features and Benefits

  • 18-Bit, 16-Channel Data Acquisition
  • 16 single-ended, 8 differential inputs
  • 1.33MSPS sampling rate
  • 250kHz channel switching rate
CN0385
Isolated, Multichannel Data Acquisition System with PGIA for Single-Ended and Differential Industrial Level Signals
Isolated Multichannel Data Acquisition Simplified Circuit
EVAL-CN0385-FMCZ Evaluation Hardware
CN0310
24-Bit, 250 kSPS Single-Supply Data Acquisition System
High Precision, 24-Bit ADC Driver for Industrial Signals
CN0240
Bidirectional Isolated High-Side Current Sense with 270 V Common-Mode Rejection
High Common-Mode Voltage Bidirectional Isolated Current Monitor
CN0272
2 MHz Bandwidth PIN Photodiode Preamp with Dark Current Compensation
Photodiode Preamp System with Dark Current Compensation
CN0251
24-Bit, 4.7 Hz, 4-Channel Analog Data Acquisiton System
Flexible Analog Front-End Circuit for Wide Industrial Range Signal Conditioning
CN0345
Low Power, Multichannel Data Acquisition System with PGIA for Single-Ended and Differential Industrial-Level Signals
Multichannel Data Acquisition Simplified Circuit
EVAL-CN0345-SDZ Evaluation Hardware
CN0180
Precision, Low Power, Single-Supply, Fully Integrated Differential ADC Driver for Industrial-Level Signals
Single-Ended-to-Differential ADC Driver
CN0269
18-Bit, 1.33 MSPS, 16-Channel Data Acquisition System
Multichannel Data Acquisition Circuit

Latest Discussions

32 Weeks Ago
AD8475 using IN 0.8x for aditional low pass filter?
32 Weeks Ago
Can AD8476 be used to drive ad7176-2(24-bit ,250ksps) adc?
32 Weeks Ago
Can AD8475 configured to a gain other than 0.4 & 0.8 using external resistors
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