Product details

Operating temperature range (C) -40 to 150 Vs (Min) (V) 3.3 Interface type SPI, UART, I2C, PWM, OWI, Ratiometric Analog Voltage, 4-20mA Vs (Max) (V) 30 Resolution (Bits) 24 Rating Military
Operating temperature range (C) -40 to 150 Vs (Min) (V) 3.3 Interface type SPI, UART, I2C, PWM, OWI, Ratiometric Analog Voltage, 4-20mA Vs (Max) (V) 30 Resolution (Bits) 24 Rating Military
DSBGA (YZS) 36 0 mm² 3.63 x 3.755 VQFN (RHH) 36 36 mm² 6 x 6
  • High accuracy, low noise, low power, small size resistive sensing signal conditioner
  • User-programmable temperature and nonlinearity compensation
  • On-chip ARM® Cortex® M0 microprocessor allows users to develop and implement calibration software
  • One-wire interface enables the communication through power supply pin without using additional lines
  • On-chip power management accepts wide power supply voltage from 3.3 V to 30 V
  • Operating temperature range: –40°C to +150°C
  • Memory:
    • 8-kB software memory
    • 128 bytes EEPROM
    • 1-kB data SRAM
  • Accommodates sensor sensitivities from 1 mV/V to 135 mV/V
  • Two individual analog-front end (AFE) chains, each including:
    • Low-noise programmable gain amplifier
    • 24-bit sigma-delta analog-to-digital converter
  • Built-in internal temperature sensor with option to use external temperature sensor
  • 14-bit DAC with programmable gain amplifier
  • Output options:
    • Ratiometric and absolute voltage output
    • 4- to 20-mA current loop interface
    • One-wire interface (OWI) over power line
    • PWM output
    • Serial peripheral interface (SPI)
    • Inter-integrated circuit (I2C)
  • Depletion MOSFET gate driver
  • Diagnostic functions
  • High accuracy, low noise, low power, small size resistive sensing signal conditioner
  • User-programmable temperature and nonlinearity compensation
  • On-chip ARM® Cortex® M0 microprocessor allows users to develop and implement calibration software
  • One-wire interface enables the communication through power supply pin without using additional lines
  • On-chip power management accepts wide power supply voltage from 3.3 V to 30 V
  • Operating temperature range: –40°C to +150°C
  • Memory:
    • 8-kB software memory
    • 128 bytes EEPROM
    • 1-kB data SRAM
  • Accommodates sensor sensitivities from 1 mV/V to 135 mV/V
  • Two individual analog-front end (AFE) chains, each including:
    • Low-noise programmable gain amplifier
    • 24-bit sigma-delta analog-to-digital converter
  • Built-in internal temperature sensor with option to use external temperature sensor
  • 14-bit DAC with programmable gain amplifier
  • Output options:
    • Ratiometric and absolute voltage output
    • 4- to 20-mA current loop interface
    • One-wire interface (OWI) over power line
    • PWM output
    • Serial peripheral interface (SPI)
    • Inter-integrated circuit (I2C)
  • Depletion MOSFET gate driver
  • Diagnostic functions

The PGA900 is a signal conditioner for resistive sensing applications. It can accommodate various sensing element types. The PGA900 conditions its input signals by amplification and digitization through two analog front end channels. With the user programmed software in the on-chip ARM Cortex M0 processor, the PGA900 can perform linearization, temperature compensation, and other user defined compensation algorithms. The conditioned signal can be output as ratiometric voltage, absolute voltage, 4- to 20-mA current loop or PWM. The data and configuration registers can also be accessed through SPI, I2C, UART, and two GPIO ports. In addition, the unique OWI allows communication and configuration through the power supply pin without using additional lines. The PGA900 operating voltage is from 3.3 V to 30 V and it can operate in temperatures from –40°C to +150°C.

The PGA900 is a signal conditioner for resistive sensing applications. It can accommodate various sensing element types. The PGA900 conditions its input signals by amplification and digitization through two analog front end channels. With the user programmed software in the on-chip ARM Cortex M0 processor, the PGA900 can perform linearization, temperature compensation, and other user defined compensation algorithms. The conditioned signal can be output as ratiometric voltage, absolute voltage, 4- to 20-mA current loop or PWM. The data and configuration registers can also be accessed through SPI, I2C, UART, and two GPIO ports. In addition, the unique OWI allows communication and configuration through the power supply pin without using additional lines. The PGA900 operating voltage is from 3.3 V to 30 V and it can operate in temperatures from –40°C to +150°C.

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Technical documentation

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Type Title Date
* Data sheet PGA900 Programmable Resistive Sensing Conditioner With Digital and Analog Outputs datasheet 15 Apr 2019
Application note Connecting PGA900 Instrumentation Amplifier to Resistive Bridge Sensor (Rev. A) 23 May 2019
White paper Cities grow smarter through innovative semiconductor technologies 07 Jul 2017
Application note PGA900, PGA300 and PGA305 Use Case for HVAC Applications 02 May 2017
Application note PGA900, PGA300 and PGA305 Use Case for the Pressure Transmitter Applications 02 May 2017
Application note PGA900, PGA300 and PGA305 Use Case for Weight Scale (Load Cell) Applications 01 May 2017
Analog design journal Ratiometric measurement in the context of LVDT-sensor signal conditioning 21 Jul 2016
Analog design journal Analog Applications Journal 3Q 2015 24 Jul 2015
Analog design journal Design tips for a resistive-bridge pressure sensor in industrial process-control 24 Jul 2015
Application note System Noise Analysis of a Resistive Bridge Pressure Sensor Connected to the PGA 07 Jul 2015
Application note Understanding Open Loop Output Impedance of the PGA900 DAC Gain Amplifier (Rev. A) 19 May 2015
Application note PGA900 as 4- to 20-mA Current Loop Transmitter 07 May 2015
Application note Understanding Open Loop Gain of the PGA900 DAC Gain Amplifier 02 Apr 2015
Application note PGA900 DAC Output Stability Application Note 04 Mar 2015
Technical article Get Connected: A new blog series 10 Jan 2014

Design & development

For additional terms or required resources, click any title below to view the detail page where available.

Evaluation board

PGA900EVM — PGA900 evaluation module

The PGA900 evaluation module (EVM) evaluates all the features of the PGA900 in either voltage mode or current mode. PGA900EVM has a resistive bridge on board with a potentiometer allowing for differential input voltages to be adjusted by the user to emulate a pressure sense element. PGA900EVM also (...)
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Simulation model

PGA900 PSpice Model

SLDM004.ZIP (167 KB) - PSpice Model
Simulation model

PGA900 TINA-TI Reference Design, Current Mode

SLDM005.TSC (652 KB) - TINA-TI Reference Design
Simulation model

PGA900 TINA-TI Spice Model

SLDM006.ZIP (5 KB) - TINA-TI Spice Model
Simulation model

PGA900 TINA-TI Reference Design, Voltage Mode

SLDM007.TSC (509 KB) - TINA-TI Reference Design
Reference designs

TIDA-00851 — Single-Chip, loop-powered 4-20mA RTD Sensor Transmitter Reference Design

The TIDA-00851 reference design is a single-chip solution for a 2-wire, 4-20mA loop-powered system including a 4-wire RTD analog front-end. The built-in processor enables the usage of compensation algorithms, increasing the system performance. The design is ideally suited for space constraints (...)
Package Pins Download
DSBGA (YZS) 36 View options
VQFN (RHH) 36 View options

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