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AD8691:  Low Noise, Low Cost Single, CMOS Rail-to-Rail Output Operational Amplifier

Product Status:Production

Product Details


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 for automotive grades.

Applications

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

FEATURES and BENEFITS

  • 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

Pin Configuration Diagram for AD8691

Documentation

Title Content Type File Type
PRD1205: Quasi-Isolated Flyback  (pdf, 0)
This is a 10V - 14 input isolated flyback converter which uses the ADP1621 controller and an AD8691 operational amplifier. The target application of this converter is for powering a portable media player from the accessory power outlet of an automobile.
Power Reference Designs PDF
Amplifier pricing where you want it,  (pdf, 1037 kB)
... performance where you need it.
Overview PDF
RAQs index Rarely Asked Questions HTML
Glossary of EE Terms Glossary HTML

Design Tools,Models,Drivers & Software

Title Content Type File Type
AD8691 SPICE Macro Model SPICE Models HTML

Evaluation Kits & Symbols & Footprints

Evaluation Boards & KitsView the Evaluation Boards and Kits page for documentation and purchasing

Symbols and Footprints— Analog Devices offers Symbols & Footprints which are compatible with a large set of today’s CAD systems for broader and easier support.

SampleSample & Buy

Price, packaging, availability

AD8691 Model Options
Model Package Pins Temp.
Range
Packing,
Qty
Price*(100-499) Price*1000 pcs RoHS View PCN/ PDN Check Inventory/
Purchase/Sample
AD8691AKSZ-R2 Status: Production 5 ld SC70 5 Ind Reel, 250 $0.90 $0.90 Y  Material Info Notify Me Purchase
AD8691AKSZ-REEL Status: Production 5 ld SC70 5 Ind Reel, 10000 - $0.44 Y  Material Info PDN Purchase
AD8691AKSZ-REEL7 Status: Production 5 ld SC70 5 Ind Reel, 3000 - $0.44 Y  Material Info Notify Me Purchase Sample
AD8691AUJZ-R2 Status: Production 5 ld TSOT 5 Ind Reel, 250 $0.90 $0.90 Y  Material Info Notify Me Purchase
AD8691AUJZ-REEL Status: Production 5 ld TSOT 5 Ind Reel, 10000 - $0.44 Y  Material Info PCN/PDN Purchase
AD8691AUJZ-REEL7 Status: Production 5 ld TSOT 5 Ind Reel, 3000 - $0.44 Y  Material Info PCN Purchase Sample
AD8691WAUJZ-R7 Status: Production TSOT-23 5, 6, 8 lead 5 Auto Reel, 3000 - $0.64 Y  Material Info PCN Purchase
AD8691WAUJZ-RL Status: Production TSOT-23 5, 6, 8 lead 5 Auto Reel, 10000 - $0.64 Y  Material Info PCN Purchase
Price Table Help

The USA list pricing shown is for BUDGETARY USE ONLY, shown in United States dollars (FOB USA per unit for the stated volume), and is subject to change. International prices may differ due to local duties, taxes, fees and exchange rates. For volume-specific price or delivery quotes, please contact your local Analog Devices, Inc. sales office or authorized distributor. Pricing displayed for Evaluation Boards and Kits is based on 1-piece pricing.

EVAL-OPAMP-1 Evaluation Board
Model Description Price RoHS View PCN/ PDN Check Inventory/
Purchase/Sample
EVAL-PRAOPAMP-1KSZ Status: Production Single KS-5 lead SC70 Evaluation Board $20.19 Yes -
EVAL-PRAOPAMP-1RJZ Status: Production Single RJ-5 lead SOT23 Evaluation Board $20.19 Yes -
EVAL-PRAOPAMP-1RMZ Status: Production Single RM-8 lead MSOP Evaluation Board $20.19 Yes -
EVAL-PRAOPAMP-1RZ Status: Production Single R-8 lead SOIC Evaluation Board $20.19 Yes -

Pricing displayed is based on 1-piece. The USA list pricing shown is for budgetary use only, shown in United States dollars (FOB USA per unit), and is subject to change. International prices may vary due to local duties, taxes, fees and exchange rates.

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