ADS1235-Q1

Product Folder Order Now Technical Documents Tools & Software Support & Community ADS1235-Q1 SBAS970 – OCTOBER 2019 ADS1235-Q1 Automotive Precision, 3-Channel, Differential-Input, 7200-SPS, 24-Bit Delta-Sigma ADC for Bridge Sensors 1 Features 1 AEC-Q100 qualified for automotive applications – Temperature grade 1: –40°C to +125°C, TA 24-bit, high-precision ADC: – 120,000 noise-free counts (10-mV input, 10 SPS) – Offset drift: 1 nV/°C – Gain drift: 0.5 ppm/°C Three differential or five single-ended inputs Two reference inputs Wide input voltage range: ±7 mV to ±5 V Low-noise PGA, gain: 1, 64, and 128 Data rate: 2.5 SPS to 7200 SPS AC- or DC-bridge excitation option Chop mode for zero-drift operation Simultaneous 50-Hz and 60-Hz rejection mode Single-cycle settling mode Missing reference input monitor Signal overrange monitor Temperature sensor Cyclic redundancy check (CRC) 5-V or ±2.5-V power supply 2 Applications On-board weighing systems (OBW) Weigh scales and strain-gauge digitizers Dynamic weigh systems Pressure measurement 3 Description The ADS1235-Q1 is a precision, 7200-SPS, deltasigma (ΔΣ) analog-to-digital converter (ADC) with an integrated programmable gain amplifier (PGA). This device also includes diagnostic features such as PGA overrange and reference monitors. The ADC provides high-accuracy, zero-drift conversion data for highprecision equipment, including weigh scales, strain gauges, and resistive pressure sensors. Th...