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AD8504:  1 µA Micropower CMOS Operational Amplifier

Product Details

Product Status:Recommended for New Designs

The AD8502/AD8504 are low power, precision CMOS operational amplifiers featuring a maximum supply current of 1 μA per amplifier. The AD8502/AD8504 have a maximum offset voltage of 3 mV and a typical input bias current of 1 pA operating rail-to-rail on both the input and output. The AD8502/AD8504 can operate from a single-supply voltage of +1.8 V to +5.5 V or a dual-supply voltage of ±0.9 V to ±2.75 V.

With its low power consumption, low input bias current, and rail-to-rail input and output, the AD8502/AD8504 are ideally suited for a variety of battery-powered portable applications. Potential applications include bedside monitors, pulse monitors, glucose meters, smoke and fire detectors, vibration monitors, and backup battery sensors.

The ability to swing rail-to-rail at both the input and output helps maximize dynamic range and signal-to-noise ratio in systems that operate at very low voltages. The low offset voltage allows use of the AD8502/AD8504 in systems with high gain without creating excessively large output offset errors. The AD8502 and AD8504 offer an additional benefit by providing high accuracy without the need for system calibration.

The AD8502/AD8504 are fully specified over the industrial temperature range (−40°C to +85°C) and the extended industrial temperature range (−40°C to +125°C). The AD8502 is available in an 8-lead, SOT-23 surface-mount package. The AD8504 is available in a 14-lead TSSOP surface-mount package.


  • Portable equipment
  • Remote sensors
  • Low power filters
  • Threshold detectors
  • Current sensing


  • Supply current: 1 μA maximum/amplifier
  • Offset voltage: 3 mV maximum
  • Single-supply or dual-supply operation
  • Rail-to-rail input and output
  • No phase reversal
  • Unity gain stable

Pin Configuration Diagram for AD8504


Title Content Type File Type
AD8502/AD8504: 1 μA Micropower CMOS Operational Amplifiers Data Sheet (Rev A, 02/2009) (pdf, 691 kB) Data Sheets PDF
Low Power Amplifiers Overview HTML
RAQs index Rarely Asked Questions HTML
Glossary of EE Terms Glossary HTML

Design Tools,Models,Drivers & Software

Title Content Type File Type
AD8504 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.

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Price, packaging, availability

AD8504 Model Options
Model Package Pins Temp.
Price*(100-499) Price*1000 pcs RoHS View PCN/ PDN Check Inventory/
AD8504ARUZ Status: Production 14 ld TSSOP 14 Ind Tube, 96 $1.40 $1.00 Y  Material Info PCN Purchase Sample
AD8504ARUZ-REEL Status: Production 14 ld TSSOP 14 Ind Reel, 2500 - $1.00 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-4 Evaluation Board
Model Description Price RoHS View PCN/ PDN Check Inventory/
EVAL-PRAOPAMP-4RUZ Status: Production QUAD 14-Lead TSSOP Evaluation Board $20.19 Yes -
EVAL-PRAOPAMP-4RZ Status: Production QUAD R-14 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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