Produktdetails

Number of channels 1 Vs (min) (V) 2.7 Vs (max) (V) 5.5 Input type Differential Output type Single-ended Vos (offset voltage at 25°C) (typ) (mV) 0.0009 Input voltage noise (typ) (µV√Hz) 0.025 Interface type Parallel, SPI BW at Acl (MHz) 24 Acl, min spec gain (V/V) 10 Architecture CMOS Features Decompensated, Fault Detection, Shutdown Slew rate (typ) (V/µs) 5 Iq per channel (typ) (mA) 1.8 Gain (max) (dB) 60 Gain error (typ) (%) 0.03 Gain drift (max) (ppm/°C) 16 Rating Catalog Operating temperature range (°C) -40 to 125
Number of channels 1 Vs (min) (V) 2.7 Vs (max) (V) 5.5 Input type Differential Output type Single-ended Vos (offset voltage at 25°C) (typ) (mV) 0.0009 Input voltage noise (typ) (µV√Hz) 0.025 Interface type Parallel, SPI BW at Acl (MHz) 24 Acl, min spec gain (V/V) 10 Architecture CMOS Features Decompensated, Fault Detection, Shutdown Slew rate (typ) (V/µs) 5 Iq per channel (typ) (mA) 1.8 Gain (max) (dB) 60 Gain error (typ) (%) 0.03 Gain drift (max) (ppm/°C) 16 Rating Catalog Operating temperature range (°C) -40 to 125
SOIC (D) 14 51.9 mm² 8.65 x 6 TSSOP (PW) 14 32 mm² 5 x 6.4

    Typical Values Unless Otherwise Noted, TA = 25°C

  • Supply Voltage 2.7V to 5.5V
  • Supply Current 1.8 mA
  • Max Gain Error 0.15%
  • Max Gain Drift 16 ppm/°C
  • Min CMRR 110 dB
  • Max Offset Voltage 10 µV
  • Max Offset Voltage Drift 50 nV/°C
  • GBW (Gain = 10) 8 MHz
  • Max Non-Linearity 100 ppm
  • Operating Temperature Range −40°C to 125°C
  • Input Fault Detection
  • SPI or Pin Configurable Modes
  • EMIRR at 1.8GHz 92 dB
  • 14-Pin SOIC and 14-Pin TSSOP Package

All trademarks are the property of their respective owners.

    Typical Values Unless Otherwise Noted, TA = 25°C

  • Supply Voltage 2.7V to 5.5V
  • Supply Current 1.8 mA
  • Max Gain Error 0.15%
  • Max Gain Drift 16 ppm/°C
  • Min CMRR 110 dB
  • Max Offset Voltage 10 µV
  • Max Offset Voltage Drift 50 nV/°C
  • GBW (Gain = 10) 8 MHz
  • Max Non-Linearity 100 ppm
  • Operating Temperature Range −40°C to 125°C
  • Input Fault Detection
  • SPI or Pin Configurable Modes
  • EMIRR at 1.8GHz 92 dB
  • 14-Pin SOIC and 14-Pin TSSOP Package

All trademarks are the property of their respective owners.

The LMP8358 is a precision programmable-gain instrumentation amplifier in TI's LMP precision amplifier family. Its gain can be programmed to 10, 20, 50, 100, 200, 500, or 1000 through an SPI-compatible serial interface or through a parallel interface. Alternatively, its gain can be set to an arbitrary value using two external resistors. The LMP8358 uses patented techniques to measure and continuously correct its input offset voltage, eliminating offset drift over time and temperature and the effect of 1/f noise. Its ground-sensing CMOS input features a high CMRR and low input bias currents. It is capable of sensing differential input voltages in a common-mode range that extends from 100mV below the negative supply to 1.4V below the positive supply, making it an ideal solution for interfacing with ground-referenced sensors, supply-referenced sensor bridges, and any other application requiring precision and long-term stability. Additionally, the LMP8358 includes fault detection circuitry to detect open and shorted inputs and deteriorating connections to the signal source. Other features that make the LMP8358 a versatile solution for many applications are its rail-to-rail output, low input voltage noise and high gain-bandwidth product.

The LMP8358 is a precision programmable-gain instrumentation amplifier in TI's LMP precision amplifier family. Its gain can be programmed to 10, 20, 50, 100, 200, 500, or 1000 through an SPI-compatible serial interface or through a parallel interface. Alternatively, its gain can be set to an arbitrary value using two external resistors. The LMP8358 uses patented techniques to measure and continuously correct its input offset voltage, eliminating offset drift over time and temperature and the effect of 1/f noise. Its ground-sensing CMOS input features a high CMRR and low input bias currents. It is capable of sensing differential input voltages in a common-mode range that extends from 100mV below the negative supply to 1.4V below the positive supply, making it an ideal solution for interfacing with ground-referenced sensors, supply-referenced sensor bridges, and any other application requiring precision and long-term stability. Additionally, the LMP8358 includes fault detection circuitry to detect open and shorted inputs and deteriorating connections to the signal source. Other features that make the LMP8358 a versatile solution for many applications are its rail-to-rail output, low input voltage noise and high gain-bandwidth product.

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Typ Titel Datum
* Data sheet LMP8358 Zero-Drift, Programmable Instrumentation Amplifier with Diagnostics datasheet (Rev. B) 27 Mär 2013
EVM User's guide LMP8358 Evaluation Board User Guide 21 Feb 2012
Application note Going Beyond the Front End Zero-Drift, Program Instrumentation Amp w/Diagnostics 20 Mai 2010

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