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PGA280 Datasheet Programmable Gain Instrumentation Amplifier

Manufacturer: Texas Instruments

Overview: Product Folder Order Now Technical Documents Tools & Software Support & Community PGA280 SBOS487B – JUNE 2009 – REVISED MARCH 2020 PGA280 Zerø-Drift, High-Voltage, Programmable Gain Instrumentation Amplifier.

General Description

The PGA280 is a high-precision instrumentation amplifier with digitally-controllable gain and signal integrity test capability.

This device offers low offset voltage, near-zero offset and gain drift, excellent linearity, and nearly no 1/f noise with superior common-mode and supply rejection to support highresolution precision measurement.

The 36-V supply capability and wide, high-impedance input range comply with requirements for universal signal measurement.

Key Features

  • 1 Wide input range: ±15.5 V at ±18-V supply.
  • Binary gain steps: 128V/V to 1/8 V/V.
  • Additional scaling factor: 1 V/V and 1⅜ V/V.
  • Low offset voltage: 3 μV at G = 128.
  • Near-zero long-term drift of offset voltage.
  • Near-zero gain drift: 0.5 ppm/°C.
  • Excellent linearity: 1.5 ppm.
  • Excellent CMRR: 140 dB.
  • High input impedance.
  • Very low 1/f noise.
  • Differential signal output.
  • Overload detection.

PGA280 Distributor

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