ADS1146 - Texas Instruments

ADS1146 Analog-to-Digital Converter

The ADS1146, ADS1147, and ADS1148 devices are precision, 16-bit analog-to-digital converters (ADCs) that include many integrated features to reduce system cost and component count for sensor measurement applications. The devices feature a low-noise, programmable gain amplifier (PGA), a precision delta-sigma (ΔΣ) ADC with a single-cycle settling digital filte.

Features

•1 Programmable Data Rates Up to 2 kSPS
• Single-Cycle Settling for All Data Rates
• Simultaneous 50-Hz and 60-Hz Rejection at 20 SPS
• Analog Multiplexer With 8 (ADS1148) and 4 (ADS1147) Independently Selectable Inputs
• Programmable Gain: 1 V/V to 128 V/V
• Dual-Matched Programmable Excitation Current Sources
• Low-Drift Internal 2.048-V Reference
• Sensor Burnout Detection
• 4 or 8 General-Purpose I/Os (ADS1147 and ADS1148)
• Internal Temperature Sensor
• Power Supply and VREF Monitoring (ADS1147 and ADS1148)
• Self and System Calibration
• SPI™-Compatible Serial Interface
• Analog Supply: .