ADS7817EC/250G4

Analog To Digital Converters (ADC) Overview

The ADS7817EC/250G4 is a 12-bit successive approximation register (SAR) analog-to-digital converter manufactured by Texas Instruments. It features a single differential input channel and operates with external analog and digital supply voltages ranging from 4.75 V to 5.25 V. The device supports a sampling rate of 200 kS/s and utilizes a 3-wire SPI-compatible serial interface. Packaged in an 8-VSSOP footprint, it is designed for low-power applications with a typical power dissipation of 2.3 mW. Key performance metrics include a signal-to-noise and distortion ratio (SINAD) of 71 dB, along with differential and integral nonlinearity specifications of ±1 LSB.

Analog To Digital Converters (ADC) Feature Summary

• High-resolution 12-bit conversion capability with low power consumption suitable for battery-operated systems
• Differential input architecture providing improved noise immunity and signal integrity
• Compact 8-pin VSSOP package design optimized for space-constrained printed circuit board layouts

Analog To Digital Converters (ADC) Applications

• Portable instrumentation requiring high resolution and low power draw
• Industrial process control systems utilizing differential signal inputs
• Data acquisition modules interfacing with microcontrollers via serial protocols

Analog To Digital Converters (ADC) Procurement Notes

Verify the specific suffix G4 indicates RoHS compliance status against current manufacturer documentation, as legacy variants may differ. Confirm the EC/250 designation aligns with the required tape-and-reel quantity of 250 units for your manufacturing line. Cross-reference the component marking code to ensure authenticity and traceability during incoming inspection processes.

Analog To Digital Converters (ADC) Selection Notes

Select this component when a 12-bit resolution and 200 kS/s throughput are sufficient for the application requirements. Ensure the system design accommodates an external voltage reference, as the ADS7817 does not integrate one internally. Verify that the available PCB space matches the 8-VSSOP package dimensions and that the operating temperature range meets the environmental conditions of the final assembly.

Analog To Digital Converters (ADC) Part Context

This part belongs to the ADS781x family of micro-power sampling ADCs from Texas Instruments. It shares architectural similarities with the ADS7816 and ADS7817 but is distinguished by its specific pinout configuration and packaging options within the VSSOP form factor. The series is generally targeted at applications balancing precision with power efficiency.

Analog To Digital Converters (ADC) Replacement Considerations

The ADS7817EB serves as a direct pin-compatible alternative within the same family, offering identical electrical characteristics in a different package variant. Designers should verify that any substitute maintains the 12-bit resolution and 200 kS/s sampling rate specifications required by the original circuit design.