AD8031

PRODUCTION

2.7 V, 800 µA, 80 MHz Rail-to-Rail I/O Single Amplifier

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Overview

  • Low power
    Supply current 800 µA/amplifier
    Fully specified at +2.7 V, +5 V and ±5 V supplies
  • High speed and fast settling on 5 V
    80 MHz, –3 dB bandwidth (G = +1)
    30 V/µs slew rate
    125 ns settling time to 0.1%
  • Output current: 15 mA
  • High grade option
    VOS (maximum) = 1.5 mV
  • Rail-to-rail input and output
    No phase reversal with input
    0.5 V beyond supplies
    Input CMVR extends beyond rails by 200 mV
    Output swing to within 20 mV of either rail
  • Low distortion
    –62 dB @ 1 MHz, VO = 2 V p-p
    –86 dB @ 100 kHz, VO = 4.6 V p-p

The AD8031 (single) is a single supply voltage feedback amplifier that features high speed performance with 80 MHz of small signal bandwidth, 30 V/µs slew rate and 125 ns settling time. This performance is possible while consuming less than 4.0 mW of power from a single +5 V supply. This feature increases the operation time of high speed, battery-powered systems without compromising dynamic performance.

The AD8031 has true single supply capability with rail-to-rail input and output characteristics and is specified for +2.7 V, +5 V, and ±5 V supplies. The input voltage range can extend to 500 mV beyond each rail. The output voltage swings to within 20 mV of each rail providing the maximum output dynamic range.

The AD8031 also offers excellent signal quality for only 800 µA of supply current per amplifier; THD is -62 dBc with a 2 V p-p, 1 MHz output signal, and -86 dBc for a 100 kHz, 4.6 V p-p signal on +5 V supply. The low distortion and fast settling time make it ideal as a buffer to single supply ADCs.

Operating on supplies from +2.7 V to +12 V and dual supplies up to ±6 V, the AD8031 is ideal for a wide range of applications, from battery operated systems with large bandwidth requirements to high speed systems where component density requires lower power dissipation. The AD8031 is available in 8-lead PDIP, 8-lead SOIC_N and 5-lead SOT-23 packages and operates over the industrial temperature range of -40°C to +85°C.

AD8032 - Dual Amplifier

AD8031
2.7 V, 800 µA, 80 MHz Rail-to-Rail I/O Single Amplifier
AD8031-pcl
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Documentation

Data Sheet 1

User Guide 3

Application Note 15

Technical Articles 3

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Software Resources

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Hardware Ecosystem

Parts Product Life Cycle Description
ADA4807-1 RECOMMENDED FOR NEW DESIGNS

3.1 nV/√Hz, 1 mA, 180 MHz, Rail-to-Rail Input/Output Amplifier

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Tools & Simulations

LTspice


Models for the following parts are available in LTspice:

  • AD8031

VRMS/dBm/dBu/dBV calculators

A utility to convert between standard units of power measurement and signal strength.

Open Tool

Power Dissipation vs Die Temp

This tool estimates die temperature and power dissipation based on the supply voltages, ambient temperature, load characteristics, and package thermal data.

Open Tool

Analog Photodiode Wizard

Use Photodiode Wizard to design a transimpedance amplifier circuit to interface with a photodiode. Select a photodiode from the library included in the tool, or enter custom photodiode specifications. Quickly observe tradeoffs between Bandwidth, Peaking (Q), and ENOB/SNR. Modify circuit parameters, and immediately see results in plots for pulse response, frequency response, and noise gain.

Open Tool

Signal Chain Designer

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

Analog Filter Wizard

Use the Analog Filter Wizard to design low-pass, high-pass, or band-pass filters with actual op amps in minutes. As you progress through the design process, you can observe the characteristics of your filter design from ideal specifications to real world circuit behavior. Quickly evaluate the tradeoffs in op amp specifications - including gain-bandwidth, noise, and supply current – to determine the best filter design for your requirements.

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 board
EVAL-ADMX1002

Ultra-low Distortion Signal Generator Measurement Module

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
EVAL-ADMX1001

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

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-HSAMP-1

Universal Evaluation Board for Single High Speed Operational Amplifiers

Features and Benefits

  • Enables quick breadboarding/prototyping
  • User defined circuit configuration
  • Edge mounted Subminiature Version A (SMA) connector
  • provisions Easy connection to test equipment and other circuits

Product Details

The Universal Single High Speed Amplifier Evaluation Boards are bare boards that enable users to quickly prototype a variety of amplifier circuits, which minimizes risk and reduces time to market. These boards are all RoHs Compliant. See ordering guide below on what board to order by lead count and package.

Resources

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
EVAL-HSAMP-1
Universal Evaluation Board for Single High Speed Operational Amplifiers

Reference Designs

12-Bit, 1 MSPS Low Power ADC with Driver
CN0247 Circuits from the lab

12-Bit ,1 MSPS, Single-Supply, Low Power Data Acquisition System

Features and Benefits

  • 12-bit, 1MSPS Data Acquisition
  • Single Supply
  • 5mW Power
18-Bit, 5 MSPS Signal Chain
CN0277 Circuits from the lab

18-Bit, 5 MSPS, Data Acquisition System Optimized for AC Performance

Features and Benefits

  • 18-bit, 5MSPS Data Acquisition
  • Low Power
  • LVDS Outputs
Complete 5 V, Single-Supply, 8-Channel Data Acquisition Solution with Integrated PGIA
CN0201 Circuits from the lab

Complete 5 V, Single-Supply, 8-Channel Multiplexed Data Acquisition System with PGIA for Industrial Signal Levels

Features and Benefits

  • Complete 8-channel 16-bit DAS on a single chip
  • Industrial signal levels up to +/-10 V
  • Single Supply
CN0247
12-Bit ,1 MSPS, Single-Supply, Low Power Data Acquisition System
12-Bit, 1 MSPS Low Power ADC with Driver
CN0277
18-Bit, 5 MSPS, Data Acquisition System Optimized for AC Performance
18-Bit, 5 MSPS Signal Chain
CN0201
Complete 5 V, Single-Supply, 8-Channel Multiplexed Data Acquisition System with PGIA for Industrial Signal Levels
Complete 5 V, Single-Supply, 8-Channel Data Acquisition Solution with Integrated PGIA

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