Texas Instruments ADS1246
The ADS1246, ADS1247, and ADS1248 devices are precision, 24-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 ADS1247 and ADS1248 devices also provide a builtin, low-drift voltage reference, and two matched programmable excitation current sources (IDACs).| Part No. | ADS1246 |
|---|---|
| Datasheet | ADS1246 Download |
| Manufacturer |  Texas Instruments |
| Description | Analog-To-Digital Converter |
| Buy | Stock & Price |
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 (ADS1248) and 4 (ADS1247) Independently Selectable Inputs
● Low-Noise PGA: 48 nVRMS at PGA = 128
● Dual-Matched Programmable Excitation Current Sources
● Low-Drift Internal 2.048-V Reference: 10 ppm/°C (Maximum)
● Sensor Burn-Out Detection
● 4 or 8 General-Purpose I/Os (ADS1247, ADS1248)
● Internal Temperature Sensor
● Power Supply and VREF Monitoring (ADS1247, ADS1248)
● Self and System Calibration
● SPI™-Compatible Serial Interface
● Analog Supply: Unipolar (2.7 V to 5.25 V) and Bipolar (±2.5 V) Operation
● Digital Supply: 2.7 V to 5.25 V 2
APPLICATIONS
● Temperature Sensor Measurements: – RTDs, Thermocouples, and Thermistors● Pressure Measurements
● Flow Meters
● Factory Automation and Process Controls 3
DESCRIPTION
An input multiplexer supports four differential inputs for the ADS1248, two for the ADS1247, and one for the ADS1246.
