ADS1235-Q1 - Texas Instruments

ADS1235-Q1 24-Bit Delta-Sigma ADC

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 gaug.

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 o.