AD629
Info: : PRODUCTION
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AD629

High Common-Mode Voltage, Difference Amplifier

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Info: : PRODUCTION tooltip
Info: : PRODUCTION tooltip
Part Details
Part Models 9
1ku List Price Starting From $4.52
Features
  • Improved replacement for: INA117P and INA117KU
  • ±270 V common-mode voltage range
  • Input protection to
    ±500 V common mode
    ±500 V differential mode
    Wide power supply range (±2.5 V to ±18 V)
    ±10 V output swing on ±12 V supply
    1 mA maximum power supply current
  • HIGH ACCURACY DC PERFORMANCE
    3 ppm maximum gain nonlinearity (AD629B)
    20 μV/°C maximum offset drift (AD629A)
    10 μV/°C maximum offset drift (AD629B)
    10 ppm/°C maximum gain drift
  • EXCELLENT AC SPECIFICATIONS
    77 dB minimum CMRR @ 500 Hz (AD629A)
    86 dB minimum CMRR @ 500 Hz (AD629B)
    500 kHz bandwidth
Additional Details
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The AD629 is a difference amplifier with a very high input, common-mode voltage range. It is a precision device that allows the user to accurately measure differential signals in the presence of high common-mode voltages up to ±270 V. 

The AD629 can replace costly isolation amplifiers in applications that do not require galvanic isolation. The device operates over a ±270 V common-mode voltage range and has inputs that are protected from common-mode or differential mode transients up to ±500 V.

The AD629 has low offset, low offset drift, low gain error drift, low common-mode rejection drift, and excellent CMRR over a wide frequency range.

The AD629 is available in low cost, 8-lead PDIP and 8-lead SOIC packages. For all packages (including die) and grades, performance is guaranteed over the industrial temperature range of −40°C to +85°C.

Applications

  • High voltage current sensing
  • Battery cell voltage monitors
  • Power supply current monitors
  • Motor controls
  • Isolation
Part Models 9
1ku List Price Starting From $4.52

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Documentation

Documentation

Part Model Pin/Package Drawing Documentation CAD Symbols, Footprints, and 3D Models
AD629AC-WP
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AD629ANZ
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AD629ARZ
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AD629ARZ-R7
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AD629ARZ-RL
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AD629BNZ
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AD629BRZ
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AD629BRZ-R7
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AD629BRZ-RL
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Product Lifecycle

PCN

Apr 18, 2011

- 11_0069

Addition of Polyimide Layer to Select Devices

AD629ANZ

PRODUCTION

AD629ARZ

PRODUCTION

AD629ARZ-R7

PRODUCTION

AD629ARZ-RL

PRODUCTION

AD629BNZ

PRODUCTION

AD629BRZ

PRODUCTION

AD629BRZ-R7

PRODUCTION

AD629BRZ-RL

PRODUCTION

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

Apr 18, 2011

- 11_0069

arrow down

Addition of Polyimide Layer to Select Devices

AD629ANZ

PRODUCTION

AD629ARZ

PRODUCTION

AD629ARZ-R7

PRODUCTION

AD629ARZ-RL

PRODUCTION

AD629BNZ

PRODUCTION

AD629BRZ

PRODUCTION

AD629BRZ-R7

PRODUCTION

AD629BRZ-RL

PRODUCTION

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

Reference Designs

Reference Designs 1

High Common-Mode Voltage Bidirectional Isolated Current Monitor

Bidirectional Isolated High-Side Current Sense with 270 V Common-Mode Rejection

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CN0240

Bidirectional Isolated High-Side Current Sense with 270 V Common-Mode Rejection

CN0240

Circuits from the lab

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Bidirectional Isolated High-Side Current Sense with 270 V Common-Mode Rejection

Features and Benefits

  • +/- 270 V common mode voltage
  • Creates isolated supply for digital control
  • 1% accuracy, bidirectional current monitor system
  • Galvanic isolation protects processor
View Detailed Reference Design external link

Design & Integration Tools

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