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Product Detailed Parameters
- Description：IC ADC 24BIT SIGMA-DELTA 8SOIC
- Series：-
- Mfr：Texas Instruments
- Package：Tape & Reel (TR),Cut Tape (CT)
- Number of Bits：24
- Sampling Rate (Per Second)：40k
- Number of Inputs：1
- Input Type：Differential
- Data Interface：SPI
- Configuration：ADC
- Ratio - S/H:ADC：-
- Number of A/D Converters：1
- Architecture：Sigma-Delta
- Reference Type：External
- Voltage - Supply, Analog：5V
- Voltage - Supply, Digital：5V
- Features：-
- Operating Temperature：-40°C ~ 85°C
- Package / Case：8-SOIC (0.154", 3.90mm Width)
- Supplier Device Package：8-SOIC
- Mounting Type：Surface Mount
- Grade：-
- Qualification：-
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Overview
The ADS1252U/2K5 is a 24-bit, single-channel analog-to-digital converter (ADC) from Texas Instruments, utilizing sigma-delta architecture. It operates with differential inputs and supports an SPI interface for data communication. The device features a maximum sampling rate of 41 kS/s and includes an integrated programmable gain amplifier (PGA). Power consumption is rated at 40 mW to 50 mW, operating on a single 5V supply for both analog and digital sections. It offers high precision with DNL of +/- 1 LSB and INL of +/- 0.0015% FSR, housed in an 8-pin SOIC package.
Feature Summary
- Integrated programmable gain amplifier and input multiplexer for signal conditioning
- Sigma-delta modulation architecture providing high resolution and noise rejection
- Digital filter capability with selectable output data rates up to 40 kHz
Applications
- Direct thermocouple interface applications
- Industrial process control systems
- High-precision weighing scales
Procurement Notes
Verify the specific ordering suffix /2K5 confirms the reel packaging quantity of 2,500 units when sourcing. Ensure compatibility with standard SPI protocols and confirm that external reference voltage requirements are met by the system design. Check moisture sensitivity level (MSL 2) handling requirements during assembly.
Selection Notes
Select this component for designs requiring 24-bit resolution with moderate speed. Verify that the 5V single-supply operation aligns with the target power budget. Consider the SOIC-8 package constraints for PCB layout. Confirm that the internal PGA settings meet the expected input signal range without external amplification.
Part Context
This part belongs to the ADS1252 series of delta-sigma ADCs. It shares architectural similarities with other members like the ADS1255 but differs in channel count and specific feature sets. The U suffix indicates the SOIC package variant, while /2K5 specifies the tape and reel packaging configuration for automated assembly.
Replacement Considerations
The ADS1252EVM serves as an evaluation module rather than a direct pin-for-pin replacement. For functional substitutes within the same family, consider the ADS1252U or ADS1252IPR, ensuring package and interface compatibility match the existing design constraints.
