AD8231
Info: : PRODUCTION
searchIcon
cartIcon

AD8231

Zero Drift, Digitally Programmable Instrumentation Amplifier

Show More showmore-icon

Info: : PRODUCTION tooltip
Info: : PRODUCTION tooltip
Part Details
Part Models 5
1ku List Price Starting From $2.01
Features
  • Digitally/pin-programmable gain 
    • G = 1, 2, 4, 8, 16, 32, 64, or 128
  • Specified from −40°C to +125°C 
    • 50 nV/°C maximum input offset drift 
    • 10 ppm/°C maximum gain drift
  • Excellent dc performance 
    • 80 dB minimum CMR, G = 1 
    • 15 μV maximum input offset voltage 
    • 500 pA maximum bias current 
    • 0.7 μV p-p noise (0.1 Hz to 10 Hz)
  • See data sheet for additional features
AD8231-EP supports defense and aerospace applications (AQEC standard)
  • Download AD8231-EP data sheet (pdf)
  • Military temperature range: (−55°C to +125°C)
  • Controlled manufacturing baseline
  • One assembly/test site
  • One fabrication site
  • Enhanced product change notification
  • Qualification data available on request
  • V62/12646 DSCC Drawing Number
Additional Details
show more Icon

The AD8231 is a low drift, rail-to-rail, instrumentation amplifier with software-programmable gains of 1, 2, 4, 8, 16, 32, 64, or 128. The gains are programmed via digital logic or pin strapping.

The AD8231 is ideal for applications that require precision performance over a wide temperature range, such as industrial temperature sensing and data logging. Because the gain setting resistors are internal, maximum gain drift is only 10 ppm/°C for gains of 1 to 32. Because of the auto-zero input stage, maximum input offset is 15 μV and maximum input offset drift is just 50 nV/°C. CMRR is 80 dB for G = 1, increasing to 110 dB at higher gains.

The AD8231 also includes an uncommitted op amp that can be used for additional gain, differential signal driving, or filtering. Like the in-amp, the op amp has an auto-zero architecture, rail-to-rail input, and rail-to-rail output.

The AD8231 includes a shutdown feature that reduces current to a maximum of 1 μA. In shutdown, both amplifiers also have a high output impedance, which allows easy multiplexing of multiple amplifiers without additional switches.

The AD8231 is specified over the extended industrial tempera-ture range of −40°C to +125°C. It is available in a 4 mm × 4 mm 16-lead LFCSP.

Applications

  • Pressure and strain transducers
  • Thermocouples and RTDs
  • Programmable instrumentation
  • Industrial controls
  • Weigh scales
  • Automotive controls
Part Models 5
1ku List Price Starting From $2.01

close icon
Documentation

Documentation

Part Model Pin/Package Drawing Documentation CAD Symbols, Footprints, and 3D Models
AD8231ACPZ-R7
  • HTML
  • HTML
AD8231ACPZ-RL
  • HTML
  • HTML
AD8231ACPZ-WP
  • HTML
  • HTML
AD8231TCPZ-EP-R7
  • HTML
  • HTML
AD8231WACPZ-RL
  • HTML
  • HTML

Filter by Model

reset

Reset Filters

Part Models

Product Lifecycle

PCN

May 4, 2016

- 14_0178

Conversion of 3x3mm, 4x4mm and 5x5mm LFCSP Package Outlines from Punch to Sawn and Transfer of Assembly Site to Amkor Philippines

Nov 16, 2009

- 06_0157

Qualification of the 8" H6 Thin Film BiPolar Wafer Fab Process at Analog Devices, Limerick, Ireland

AD8231ACPZ-R7

PRODUCTION

AD8231ACPZ-RL

PRODUCTION

AD8231ACPZ-WP

PRODUCTION

Feb 6, 2017

- 16_0225

Addition of ASE Korea as an Alternate Assembly Site for Select LFCSP Products.

Jun 19, 2014

- 13_0247

Assembly Transfer of Select 3x2, 4x4, 5x5, 6x6 and 7x7 mm LFCSP Pre-plated Leadframe Products to STATS ChipPAC China

Filter by Model

reset

Reset Filters

Part Models

Product Lifecycle

PCN

May 4, 2016

- 14_0178

arrow down

Conversion of 3x3mm, 4x4mm and 5x5mm LFCSP Package Outlines from Punch to Sawn and Transfer of Assembly Site to Amkor Philippines

Nov 16, 2009

- 06_0157

arrow down

Qualification of the 8" H6 Thin Film BiPolar Wafer Fab Process at Analog Devices, Limerick, Ireland

AD8231ACPZ-R7

PRODUCTION

AD8231ACPZ-RL

PRODUCTION

AD8231ACPZ-WP

PRODUCTION

Feb 6, 2017

- 16_0225

arrow down

Addition of ASE Korea as an Alternate Assembly Site for Select LFCSP Products.

Jun 19, 2014

- 13_0247

arrow down

Assembly Transfer of Select 3x2, 4x4, 5x5, 6x6 and 7x7 mm LFCSP Pre-plated Leadframe Products to STATS ChipPAC China

Software & Part Ecosystem

Software & Part Ecosystem

Evaluation Kit

Evaluation Kits 1

reference details image

EVAL-AD8231

AD8231 Evaluation Board

zoom

EVAL-AD8231

AD8231 Evaluation Board

AD8231 Evaluation Board

Product Detail

The AD8231-EVALZ has two AD8231s mounted on it. Z1 is the AD8231 on the left side of the board. It is configured to allow access of the in-amp and op amp separately. Z2 is the AD8231 on the right side of the board. It is set up as a differential output configuration. See AD8231-EVALZ data sheet for complete instruction.


Tools & Simulations

Tools & Simulations 2

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.

Recently Viewed