PGA300 Datasheet | Texas Instruments

Features - 1 Analog features : - Analog front-end for resistive bridge sensors - Acmodates sensor sensitivities from 1 m V/V to 135 m V/V - On-chip temperature sensor - Programmable gain - 16-bit sigma-delta analog-to-digital converter for signal channel - 16-bit sigma-delta analog-to-digital converter for temperature channel - 14-bit output DAC - Digital Features : - <0.1% FSO accuracy across temperature - System response time <220 µs - Third-order temperature and nonlinearity pensation - Diagnostic functions - Integrated EEPROM for device operation, calibration data, and user data - Peripheral features : - One-wire interface enables munication through the power-supply pin - 4-m A to 20-m A current-loop output - Ratiometric and absolute voltage output - Power supply: - On-chip power management accepts wide power-supply voltage from 3.3 V to 30 V - Integrated reverse voltage protection circuit - Industrial temperature range: - 40°C to +150°C 2 Applications - Pressure transmitters - Temperature transmitters - Flow transmitters - Level transmitters 3 Description The PGA300 provides an interface for piezoresistive and strain-gauge pressure-sense elements. The device is a full system-on-chip (So C) solution that incorporates a programmable analog front-end (AFE), ADC, and digital signal processing that enable direct connection to the sense element. Further, the PGA300 includes integrated voltage regulators and an oscillator, thus minimizing the number of external ponents. The device achieves high accuracy by employing third-order temperature and nonlinearity pensation. External munication is achieved by using a one-wire serial interface (OWI) through the power-supply pin in order to simplify the system calibration process. An Integrated DAC supports absolute-voltage, ratiometric-voltage, and 4-m A to 20-m A current-loop outputs. Device Information(1) PART NUMBER PACKAGE BODY SIZE (NOM) VQFN (36) 6.00 mm × 6.00...