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Product Detailed Parameters
- Description：IC ADC 24BIT SIGMA-DELTA 48HTQFP
- Series：-
- Mfr：Texas Instruments
- Package：Tape & Reel (TR),Cut Tape (CT)
- Number of Bits：24
- Sampling Rate (Per Second)：125k
- Number of Inputs：8, 16
- Input Type：Differential, Single Ended
- Data Interface：SPI
- Configuration：MUX-ADC
- Ratio - S/H:ADC：-
- Number of A/D Converters：1
- Architecture：Sigma-Delta
- Reference Type：External
- Voltage - Supply, Analog：5V
- Voltage - Supply, Digital：2.7V ~ 5.25V
- Features：-
- Operating Temperature：-40°C ~ 105°C
- Package / Case：48-PowerTQFP
- Supplier Device Package：48-HTQFP (7x7)
- Mounting Type：Surface Mount
- Grade：-
- Qualification：-
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Overview
The ADS1258IPHPREP is a 24-bit analog-to-digital converter (ADC) from the Texas Instruments ADS1258 series, designed for high-precision data acquisition. It features a sigma-delta architecture with 16 differential input channels and an SPI interface. The device supports sampling rates up to 125 kS/s and operates with an analog supply voltage of 4.75 V to 5.25 V and a digital supply of 2.7 V to 5.25 V. Encased in a 48-pin HTQFP package, it offers an effective number of bits (ENOB) of 21.6 and includes integrated GPIOs, an oscillator, and a temperature sensor.
Feature Summary
- Integrates 16 differential input channels with a multiplexer for flexible signal acquisition.
- Includes internal peripherals such as general-purpose I/O pins, an oscillator, and a temperature sensor.
- Supports external reference voltage inputs for customizable precision applications.
Applications
- Medical electrocardiogram (ECG) systems
- Industrial process control instrumentation
- High-resolution data acquisition modules
Procurement Notes
Verify the specific revision level and manufacturing origin when ordering, as engineering samples may differ from production units. Confirm that the HTQFP-48 package dimensions match your PCB footprint requirements. Ensure compatibility with the required analog and digital power supply voltages before integration into the final design.
Selection Notes
Select this component for applications requiring multiple differential inputs with high resolution. Compare the HTQFP-48 package against the VQFN-48 option if space constraints exist. Verify that the 125 kS/s maximum sampling rate meets the bandwidth requirements of the target signals.
Part Context
This part belongs to the ADS1258 family of 24-bit ADCs. It shares core specifications with variants like the ADS1258IRTCT but differs in packaging and qualification status. The IPH suffix indicates a specific package type and potential engineering sample status within the TI product line.
Replacement Considerations
ADS1258IRTCT: Same electrical specifications but in a VQFN-48 package. ADS1258MRTCTEP: Similar performance with potentially different thermal characteristics and packaging. Verify pinout compatibility and package dimensions before substitution.
