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Product Detailed Parameters
- Description：IC ADC 24BIT SIGMA-DELTA 16TSSOP
- Series：-
- Mfr：Texas Instruments
- Package：Tape & Reel (TR),Cut Tape (CT)
- Number of Bits：24
- Sampling Rate (Per Second)：2k
- Number of Inputs：1
- Input Type：Differential, Single Ended
- Data Interface：SPI
- Configuration：MUX-PGA-ADC
- Ratio - S/H:ADC：-
- Number of A/D Converters：1
- Architecture：Sigma-Delta
- Reference Type：External
- Voltage - Supply, Analog：2.7V ~ 5.25V
- Voltage - Supply, Digital：2.7V ~ 5.25V
- Features：PGA, Temperature Sensor
- Operating Temperature：-40°C ~ 105°C
- Package / Case：16-TSSOP (0.173", 4.40mm Width)
- Supplier Device Package：16-TSSOP
- Mounting Type：Surface Mount
- Grade：-
- Qualification：-
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Overview
The ADS1246IPWR is a low-noise, precision 24-bit analog-to-digital converter (ADC) from Texas Instruments, utilizing sigma-delta architecture. It features a single differential input channel and operates on dual power supplies ranging from 2.7 V to 5.25 V. The device supports data rates up to 2 kS/s and includes an integrated programmable gain amplifier (PGA) with gains up to 128. Key specifications include a maximum power consumption of 2.3 mW, a differential nonlinearity (DNL) of ±1 LSB, and an integral nonlinearity (INL) of 15 ppm. It communicates via an SPI interface and is housed in a 16-pin TSSOP package.
Feature Summary
- Integrated programmable gain amplifier for signal conditioning
- Built-in temperature sensor and internal oscillator
- Supports 50 Hz and 60 Hz rejection filtering
Applications
- Industrial process control systems
- Weigh scales and load cell measurements
- Medical instrumentation devices
Procurement Notes
Verify the suffix 'WR' indicates tape-and-reel packaging distinct from the tube-packaged 'IPW' variant. Confirm RoHS compliance status and moisture sensitivity level prior to assembly. Ensure the specific revision matches design requirements as datasheets may undergo updates.
Selection Notes
Select this component when high-resolution 24-bit accuracy is required for single-channel applications. Compare against the ADS1247 if excitation current sources or additional GPIO pins are necessary. Consider the ADS1243 for multi-channel requirements despite lower sampling speeds.
Part Context
This part belongs to the ADS124x family of precision ADCs designed for sensor measurement. It shares architectural similarities with the ADS114x series but offers higher resolution. The IPWR suffix specifically denotes the reel packaging format suitable for automated surface-mount assembly processes.
Replacement Considerations
ADS1246IPW: Identical electrical performance but packaged in tubes instead of tape-and-reel. ADS1247IPWR: Offers similar performance with added excitation current sources and GPIO capabilities.
