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LMP7312 - Precision SPI-Programmable AFE

General Description

The LMP7312 is a digitally programmable variable gain amplifier/attenuator.

Its wide input voltage range and superior precision make it a prime choice for applications requiring high accuracy such as data acquisition systems for IO modules in programmable logic control (PLC).

Key Features

  • 1.
  • 2 Typical Values, TA = 25°C, V+=5V, V-=0V.
  • Gain Bandwidth 1 MHz.
  • Input Voltage Range (G= 0.096 V/V) -15V to +15V.
  • Core Op-Amp Input Offset Voltage 100 µV (Max).
  • Supply Current 2 mA (Max).
  • Gain (Attenuation Mode) 0.096 V/V, 0.192 V/V0.384 V/V, 0.768 V/V.
  • Gain (Amplification Mode) 1 V/V, 2 V/V.
  • Gain Error 0.035% (Max).
  • Core Op-Amp PSRR 90 dB (Min).
  • CMRR 80 dB (min).
  • Adjustable Output Common Mode 1.

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Full PDF Text Transcription (Reference)

The following content is an automatically extracted verbatim text from the original manufacturer datasheet and is provided for reference purposes only.

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LMP7312 www.ti.com SNOSB32B – MARCH 2010 – REVISED MARCH 2013 LMP7312 Precision SPI-Programmable AFE with Differential/Single-Ended Input/Output Check for Samples: LMP7312 FEATURES 1 •2 Typical Values, TA = 25°C, V+=5V, V-=0V. • Gain Bandwidth 1 MHz • Input Voltage Range (G= 0.096 V/V) -15V to +15V • Core Op-Amp Input Offset Voltage 100 µV (Max) • Supply Current 2 mA (Max) • Gain (Attenuation Mode) 0.096 V/V, 0.192 V/V0.384 V/V, 0.768 V/V • Gain (Amplification Mode) 1 V/V, 2 V/V • Gain Error 0.