ADS1148

Product Folder Sample & Buy Technical Documents Tools & Software Support & Community ADS1146, ADS1147, ADS1148 SBAS453G – JULY 2009 – REVISED AUGUST 2016 ADS114x 16-Bit, 2-kSPS, Analog-to-Digital Converters With Programmable Gain Amplifier (PGA) for Sensor Measurement 1 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: Unipolar (2.7 V to 5.25 V) or Bipolar (±2.5 V) Digital Supply: 2.7 V to 5.25 V 2 Applications Temperature Measurement – RTDs, Thermocouples, and Thermistors Pressure Measurement Flow Meters Factory Automation and Process Control 3 Description 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...