AD8692

PRODUCTION

Low Cost, Low Noise, Dual CMOS Rail-to-Rail Output Operational Amplifier

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Overview

  • Offset voltage: 400 μV typical 
  • Low offset voltage drift: 6 μV/°C maximum (AD8692/AD8694) 
  • Very low input bias currents:
    1 pA maximum 
  • Low noise: 8 nV/√Hz 
  • Qualified for automotive applications
  • Low distortion: 0.0006% 
  • Wide bandwidth: 10 MHz 
  • Unity-gain stable 
  • Single-supply operation: 2.7 V to 6 V 

The AD8691, AD8692, and AD8694 are low cost, single, dual, and quad rail-to-rail output, single-supply amplifiers featuring low offset and input voltages, low current noise, and wide signal bandwidth. The combination of low offset, low noise, very low input bias currents, and high speed make these amplifiers useful in a wide variety of applications. Filters, integrators, photodiode amplifiers, and high impedance sensors all benefit from this combination of performance features. Audio and other ac applications benefit from the wide bandwidth and low distortion of these devices.

Applications for these amplifiers include power amplifier (PA) controls, laser diode control loops, portable and loop-powered instrumentation, audio amplification for portable devices, and ASIC input and output amplifiers.

The small SC70 and TSOT package options for the AD8691 allow it to be placed next to sensors, thereby reducing external noise pickup.

The AD8691, AD8692, and AD8694 are specified over the extended industrial temperature range of −40°C to +125°C. The AD8691 single is available in 5-lead SC70 and 5-lead TSOT packages. The AD8692 dual is available in 8-lead MSOP and narrow SOIC surface-mount packages. The AD8694 quad is available in 14-lead TSSOP and narrow 14-lead SOIC packages. See ordering guide section for automotive grades.

Applications

  • Photodiode amplification
  • Battery-powered instrumentation
  • Medical instruments
  • Multipole filters
  • Sensors
  • Portable audio devices

AD8692
Low Cost, Low Noise, Dual CMOS Rail-to-Rail Output Operational Amplifier
AD8692-pcl
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Documentation

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Software Resources

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Hardware Ecosystem

Parts Product Life Cycle Description
ADA4691-2 PRODUCTION Low Power, 3.6 MHz, Low Noise, Rail-to-Rail Output, Operational Amplifiers
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Tools & Simulations

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

Evaluation Kits

eval board
EVAL-OPAMP-2

EVAL-OPAMP-2 Evaluation Board

Product Details

The universal precision op amp evaluation boards have been designed and optimized for many circuit configurations allowing the users to best suit their applications. These boards are all RoHs compliant. See references below on what board to order by lead count and package.

  • EVAL-PRAOPAMP-2CPZ (dual 8-lead LFCSP) CP-8
  • EVAL-PRAOPAMP-2RMZ (dual 8-lead MSOP) RM-8
  • EVAL-PRAOPAMP-2RZ (dual 8-lead SOIC) R-8

EVAL-OPAMP-2
EVAL-OPAMP-2 Evaluation Board
EVAL-OPAMP-2 EVAL-OPAMP-2 EVAL-OPAMP-2

Reference Designs

High Performance Resolver-to-Digital (RDC) Circuit
CN0276 Circuits from the lab

High Performance, 10-Bit to 16-Bit Resolver-to-Digital Converter

Features and Benefits

  • 10-bit to 16-bit resolver to digital converter
  • High and low voltage drive options
  • Maximum tracking rate of 3125 rps
Ultrasonic Distance Sensor
CN0343 Circuits from the lab

Ultrasonic Distance Measurement

Features and Benefits

  • Self-Contained Ultrasonic Distance Measurement
  • 50cm to 10m range
  • 2cm resolution
  • Small PCB Footprint
CN0276
High Performance, 10-Bit to 16-Bit Resolver-to-Digital Converter
High Performance Resolver-to-Digital (RDC) Circuit
CN0343
Ultrasonic Distance Measurement
Ultrasonic Distance Sensor

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