ADS1146

適用于精密傳感器測(cè)量且具有 PGA 的 16 位 2kSPS 單通道 ADC; ? Programmable Data Rates Up to 2 kSPS\n? Single-Cycle Settling for All Data Rates\n? Simultaneous 50-Hz and 60-Hz Rejection at 20 SPS\n? Analog Multiplexer With 8 (ADS1148) and 4 (ADS1147) Independently Selectable Inputs\n? Programmable Gain: 1 V/V to 128 V/V\n? Dual-Matched Programmable Excitation Current Sources\n? Low-Drift Internal 2.048-V Reference\n? Sensor Burnout Detection\n? 4 or 8 General-Purpose I/Os (ADS1147 and ADS1148)\n? Internal Temperature Sensor\n? Power Supply and VREF Monitoring (ADS1147 and ADS1148)\n? Self and System Calibration\n? SPI?-Compatible Serial Interface\n? Analog Supply: Unipolar (2.7 V to 5.25 V) or Bipolar (±2.5 V)\n? Digital Supply: 2.7 V to 5.25 V;

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 filter, and an internal oscillator. The ADS1147 and ADS1148 devices also provide a built-in, low-drift voltage reference, and two matched programmable excitation current sources (IDACs).An input multiplexer supports four differential inputs for the ADS1148, two for the ADS1147, and one for the ADS1146. In addition, the multiplexer integrates sensor burn-out detection, voltage bias for thermocouples, system monitoring, and general purpose digital I/Os (ADS1147 and ADS1148). The PGA provides selectable gains up to 128 V/V. These features provide a complete front-end solution for temperature sensor measurement applications including thermocouples, thermistors, and resistance temperature detectors (RTDs) and other small signal measurements including resistive bridge sensors. The digital filter settles in a single cycle to support fast channel cycling when using the input multiplexer and provides data rates up to 2 kSPS. For data rates of 20 SPS or less, both 50-Hz and 60-Hz interference are rejected by the filter.

ADS1146

16-Bit Analog-to-Digital Converters for Temperature Sensors

ADS1146

16-Bit Analog-to-Digital Converters for Temperature Sensors

ADS1146

16-Bit Analog-to-Digital Converters for Temperature Sensors

ADS1146

16-Bit Analog-to-Digital Converters for Temperature Sensors

ADS1146_10

16-Bit Analog-to-Digital Converters for Temperature Sensors

ADS1146_12

16-Bit Analog-to-Digital Converters for Temperature Sensors

ADS1146_14

16-Bit Analog-to-Digital Converters for Temperature Sensors

ADS1146EVM

Contains all support circuitry needed for the ADS1146/ADS1246

ADS1146EVM-PDK

Contains all support circuitry needed for the ADS1146/ADS1246