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Datasheet Analog Devices AD629ARZ

Manufacturer:Analog Devices
Series:AD629
Part Number:AD629ARZ

High Common-Mode Voltage, Difference Amplifier

Datasheets

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    Docket ↓
    High Common-Mode Voltage,
    Difference Amplifier
    AD629
    FUNCTIONAL BLOCK DIAGRAM 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 REF(–) 1
    –IN 2
    +IN 3
    –VS 4 380kΩ 21.1kΩ
    380kΩ
    380kΩ 20kΩ AD629 8 NC 7 +VS 6 OUTPUT 5 REF(+)
    00783-001 FEATURES NC = NO CONNECT Figure 1. GENERAL DESCRIPTION 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 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 ...

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Manufacturer's Classification

  • Amplifiers > Difference Amplifiers / Current Sense Amplifiers / Instrumentation Amplifiers

Docket:
High Common-Mode Voltage,
Difference Amplifier
AD629
FUNCTIONAL BLOCK DIAGRAM 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 REF(–) 1
–IN 2
+IN 3
–VS 4 380kΩ 21.1kΩ
380kΩ
380kΩ 20kΩ AD629 8 NC 7 +VS 6 OUTPUT 5 REF(+)
00783-001 FEATURES NC = NO CONNECT Figure 1. GENERAL DESCRIPTION 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 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. EXCELLENT AC SPECIFICATIONS
77 dB minimum CMRR @ 500 Hz (AD629A)
86 dB minimum CMRR @ 500 Hz (AD629B)
500 kHz bandwidth 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. APPLICATIONS
High voltage current sensing
Battery cell voltage monitors
Power supply current monitors
Motor controls
Isolation The AD629 is available in die and packaged form featuring
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. 2mV/DI...

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