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Product Detailed Parameters
- Description：IC ADC 24BIT SIGMA-DELTA 24SOIC
- Series：-
- Mfr：Texas Instruments
- Package：Tape & Reel (TR)
- Number of Bits：24
- Sampling Rate (Per Second)：16k
- Number of Inputs：4
- Input Type：Differential
- Data Interface：SPI
- Configuration：MUX-PGA-ADC
- Ratio - S/H:ADC：-
- Number of A/D Converters：1
- Architecture：Sigma-Delta
- Reference Type：External, Internal
- Voltage - Supply, Analog：5V
- Voltage - Supply, Digital：5V
- Features：PGA
- Operating Temperature：-40°C ~ 85°C
- Package / Case：24-SOIC (0.295", 7.50mm Width)
- Supplier Device Package：24-SOIC
- Mounting Type：Surface Mount
- Grade：-
- Qualification：-
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Overview
The ADS1211U/1K is a 24-bit analog-to-digital converter (ADC) from Texas Instruments, utilizing sigma-delta architecture. It features four differential inputs and an integrated programmable gain amplifier (PGA). The device operates on a single 5V supply with a maximum sampling rate of 16 kSPS. It communicates via an SPI-compatible digital interface and includes an internal reference. Packaged in a 24-pin SOIC, it supports an operating temperature range from -40°C to +85°C.
Feature Summary
- Integrates a 24-bit sigma-delta ADC with a multiplexer and programmable gain amplifier for high-resolution signal conditioning.
- Includes an internal voltage reference to simplify system design and reduce external component count.
- Provides flexible input configurations through a built-in multiplexer supporting multiple differential channels.
Applications
- Precision industrial data acquisition systems
- High-resolution sensor interfaces
- Medical instrumentation requiring low-noise conversion
Procurement Notes
Verify the specific suffix '1K' against the manufacturer's official documentation to confirm packaging configuration, as standard datasheets may list tube or reel options separately. Ensure the order matches the required package type and moisture sensitivity level specifications defined in the latest product change notifications.
Selection Notes
Select this component when a 24-bit resolution and 16 kSPS speed are required for multi-channel applications. The integrated PGA and internal reference make it suitable for designs minimizing external precision components. Verify that the SPI interface compatibility aligns with the host microcontroller.
Part Context
This part belongs to the ADS1211 family of precision data converters. It shares architectural similarities with the ADS1210 but offers additional channel count capabilities. The U/1K designation indicates a specific tape-and-reel packaging variant within the broader SOIC-24 product line.
Replacement Considerations
The ADS1211UG4 is a verified lead-free alternative within the same series. Check the datasheet for pinout and electrical parameter equivalence before substitution.
