AD8643
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AD8643

Low Power, Rail-to-Rail Output, Precision JFET Quad Amplifier

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Part Details
Part Models 5
1ku List Price Starting From $4.54
Features
  • Low supply current: 250 μA max
  • Very low input bias current: 1 pA max
  • Low offset voltage: 750 μV max
  • Single-supply operation: 5 V to 26 V
  • Dual-supply operation: ±2.5 V to ±13 V
  • Rail-to-rail output
  • Unity-gain stable
  • See datasheet for additional features

Additional Details
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The AD8641 / AD8642 / AD8643 are low power, precision JFET input amplifiers featuring extremely low input bias current and rail-to-rail output. The ability to swing nearly rail-to-rail at the input and rail-to-rail at the output enables designers to buffer complementary metal-oxide semiconductor digital-to-analog converters (CMOS DACs), ASICs, and other wide output swing devices in single-supply systems. The outputs remain stable with capacitive loads of more than 500 pF.

The AD8641 / AD8642 / AD8643 are suitable for applications utilizing multichannel boards that require low power to manage heat. Other applications include photodiodes, ATE reference level drivers, battery management, and industrial controls.

The AD8641 / AD8642 / AD8643 are fully specified over the extended industrial temperature range of −40°C to +125°C. The AD8641 is available in 5-lead SC70 and 8-lead SOIC lead-free packages. The AD8642 is available in 8-lead MSOP and 8-lead SOIC lead-free packages. The AD8643 is available in 14-lead SOIC and 16-lead, 3 mm × 3 mm, LFCSP lead-free packages. 


Applications



  • Line-/battery-powered instruments
  • Photodiode amplifiers
  • Precision current sensing
  • Medical instrumentation
  • Industrial controls
  • Precision filters
  • Portable audio
  • ATE 
Part Models 5
1ku List Price Starting From $4.54

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Documentation

Documentation

Part Model Pin/Package Drawing Documentation CAD Symbols, Footprints, and 3D Models
AD8643ACPZ-REEL7
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AD8643ARZ
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AD8643ARZ-REEL7
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AD8643TRZ-EP
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AD8643TRZ-EP-R7
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Product Lifecycle

PCN

Feb 13, 2014

- 14_0038

Conversion of 3x3mm body Size LFCSP Package Outlines from Punch to Sawn and Transfer of Assembly Site to Amkor Philippines.

Sep 9, 2009

- 07_0083

Polyimide Change

AD8643ACPZ-REEL7

PRODUCTION

AD8643ARZ

PRODUCTION

AD8643ARZ-REEL7

PRODUCTION

Nov 23, 2010

- 10_0004

Halogen Free Material Change for SOIC Narrow Body Products Assembled at Amkor

Aug 19, 2009

- 07_0024

Package Material Changes for SOT23, MiniSO, MQFP, PDIP, PLCC, SOIC (narrow and wide body), SSOP, TSSOP and TSSOP exposed pad

Filter by Model

reset

Reset Filters

Part Models

Product Lifecycle

PCN

Feb 13, 2014

- 14_0038

arrow down

Conversion of 3x3mm body Size LFCSP Package Outlines from Punch to Sawn and Transfer of Assembly Site to Amkor Philippines.

Sep 9, 2009

- 07_0083

arrow down

Polyimide Change

AD8643ACPZ-REEL7

PRODUCTION

AD8643ARZ

PRODUCTION

AD8643ARZ-REEL7

PRODUCTION

Nov 23, 2010

- 10_0004

arrow down

Halogen Free Material Change for SOIC Narrow Body Products Assembled at Amkor

Aug 19, 2009

- 07_0024

arrow down

Package Material Changes for SOT23, MiniSO, MQFP, PDIP, PLCC, SOIC (narrow and wide body), SSOP, TSSOP and TSSOP exposed pad

Software & Part Ecosystem

Software & Part Ecosystem

Evaluation Kit

Evaluation Kits 1

EVAL-OPAMP-4

EVAL-OPAMP-4 Evaluation Board

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EVAL-OPAMP-4

EVAL-OPAMP-4 Evaluation Board

EVAL-OPAMP-4 Evaluation Board

Product Detail

The Universal Precision Op Amp Evaluation Boards has 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-4RUZ (Quad 14-Lead TSSOP) RU-14
  • EVAL-PRAOPAMP-4RZ (Quad 14-Lead SOIC) R-14
Tools & Simulations

Tools & Simulations 5

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.

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