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Product Detailed Parameters
- Description：IC ADC 24BIT SIGMA-DELTA 10VSSOP
- Series：-
- Mfr：Texas Instruments
- Package：Tape & Reel (TR),Cut Tape (CT),Bulk
- Number of Bits：24
- Sampling Rate (Per Second)：15
- Number of Inputs：1
- Input Type：Differential, Single Ended
- Data Interface：SPI
- Configuration：ADC
- Ratio - S/H:ADC：-
- Number of A/D Converters：1
- Architecture：Sigma-Delta
- Reference Type：External
- Voltage - Supply, Analog：2.5V ~ 5.25V
- Voltage - Supply, Digital：1.8V ~ 3.6V
- Features：-
- Operating Temperature：-40°C ~ 85°C
- Package / Case：10-TFSOP, 10-MSOP (0.118", 3.00mm Width)
- Supplier Device Package：10-VSSOP
- Mounting Type：Surface Mount
- Grade：-
- Qualification：-
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Overview
The ADS1245IDGST is a 24-bit, low-noise delta-sigma analog-to-digital converter (ADC) manufactured by Texas Instruments. It features a single differential input channel and operates with an SPI-compatible digital interface. The device supports sampling rates up to 20 kilospamples per second (kSPS). It functions within an analog supply voltage range of 2.7 V to 5.25 V and a digital supply voltage range of 1.8 V to 5.25 V. The component is housed in a 10-lead MSOP package and is rated for operation between -40°C and +85°C.
Feature Summary
- Integrated programmable gain amplifier (PGA) supporting gains from 1 to 128
- On-chip precision internal reference voltage source
- Built-in temperature sensor for system monitoring
Applications
- Industrial process control systems requiring high-resolution measurement
- Weigh scales and load cell interfaces
- Medical instrumentation such as ECG and blood pressure monitors
Procurement Notes
Verify the specific suffix 'IDGST' corresponds to the MSOP-10 package variant when sourcing. Confirm that the required operating temperature range aligns with the industrial grade specification. Ensure the design accommodates the necessary external decoupling capacitors for stable analog and digital power supplies as defined in the electrical characteristics.
Selection Notes
Select this component when a single-channel, high-resolution conversion is required without the need for multiple inputs found in quad-channel variants. It serves as a direct upgrade path for applications previously using lower-resolution ADCs or external amplifiers, consolidating signal conditioning and conversion into a single integrated circuit solution.
Part Context
This part belongs to the ADS124x family of low-noise, 24-bit delta-sigma ADCs. It shares architectural similarities with the ADS1244 and ADS1246 but differs in channel count and specific performance trade-offs. The IDGST designation identifies the specific commercial/industrial temperature range and surface-mount packaging configuration within the broader product line.
Replacement Considerations
The ADS1244IDGST offers similar functionality but typically supports lower maximum data rates. The ADS1246IDGST provides higher throughput capabilities while maintaining comparable resolution. Engineers should verify pin compatibility and register settings when migrating between these family members.
