ADS131B04QPWRQ1

The ADS131B04QPWRQ1 is a precision analog-to-digital converter designed for automotive applications. It integrates four simultaneous-sampling, differential-input ADCs with a delta-sigma architecture. The device supports a programmable data rate up to 32 kSPS and a programmable gain of up to 128. It features a low-drift internal reference of 1.2 V and a precision internal oscillator. The ADC also includes a global-chop mode to remove offset drift over temperature and time. The high-impedance analog inputs allow direct sensor connection, and an integrated negative charge pump enables input signal measurements below ground. Crosstalk between channels is typically -120 dB. The device operates from a 2.7 V to 3.6 V analog and digital supply. Power consumption is typically 5 mW at 3.3 V AVDD and DVDD. The ADS131B04QPWRQ1 is available in a 20-TSSOP package (6.5 mm × 6.4 mm) and is surface-mountable. It is AEC-Q100 qualified for automotive applications and is functional safety-capable. Typical applications include motor control, battery management, and sensor interfaces in automotive systems.