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Product Detailed Parameters
- Description：IC ADC 20BIT SIGMA-DELTA 16SOIC
- Series：-
- Mfr：Texas Instruments
- Package：Tube
- Number of Bits：20
- Sampling Rate (Per Second)：25k
- Number of Inputs：1
- Input Type：Differential, Single Ended
- Data Interface：SPI
- Configuration：PGA-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：PGA
- Operating Temperature：-40°C ~ 85°C
- Package / Case：16-SOIC (0.295", 7.50mm Width)
- Supplier Device Package：16-SOIC
- Mounting Type：Surface Mount
- Grade：-
- Qualification：-
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Overview
The ADS1250U is a precision, wide dynamic range, delta-sigma analog-to-digital converter featuring 20-bit resolution. It operates from a single +5V supply with voltage ranges of 4.75 V to 5.25 V for both analog and digital domains. The device supports a maximum sampling rate of 25 kS/s and utilizes differential input types. It is housed in a 16-pin SOIC package and includes an external reference type configuration. The component functions within a temperature range of -40°C to +85°C.
Feature Summary
- Delta-sigma architecture for high-precision data acquisition
- Wide dynamic range capability with 20-bit resolution
- Single +5V supply operation for simplified power management
- Differential input structure to enhance signal integrity
Applications
- Industrial process control systems
- Precision weighing scales
- Data acquisition modules
- Low-level sensor signal conditioning
Procurement Notes
Verify the specific suffix (e.g., /1K) against the required packaging format, as standard ADS1250U may differ from tube or reel variants. Confirm RoHS compliance status through official manufacturer documentation prior to integration. Ensure the external reference voltage requirements align with system design constraints. Validate pinout compatibility with existing PCB layouts due to the 16-SOIC package dimensions.
Selection Notes
Select this component when 20-bit resolution and 25 kS/s throughput are sufficient for the application. Consider the ADS1251U or ADS1252U if higher resolutions or faster sampling rates are required. Evaluate the need for an external reference versus internal options available in other family members. Assess power consumption requirements against the single-supply architecture limitations.
Part Context
The ADS1250U belongs to Texas Instruments' SpeedPlus series of analog-to-digital converters. It complements the ADS1251 and ADS1252 models by offering a balance between resolution and speed. The device is designed for applications requiring accurate measurement of low-level signals without the complexity of multi-supply systems.
Replacement Considerations
The ADS1250U/1K is a documented variant with specific packaging configurations. Direct functional replacements within the same family include the ADS1251U and ADS1252U, though these offer different resolution and speed specifications.
