ADS7825UG4

Analog To Digital Converters (ADC) Overview

The ADS7825UG4 is a four-channel, 16-bit successive approximation register (SAR) analog-to-digital converter manufactured by Texas Instruments. It operates within an analog and digital supply voltage range of 4.75 V to 5.25 V. The device supports both parallel and serial interface configurations with a sampling rate of 40 kS/s. Key performance metrics include a signal-to-noise ratio of 83 dB and a total power dissipation of 50 mW. Differential nonlinearity is specified at +/- 1 LSB, while integral nonlinearity is +/- 3 LSB. It features over-voltage protection and accepts single-ended inputs. The component is housed in a SOIC-28 surface-mount package and functions reliably across an operating temperature range from -40°C to +85°C.

Analog To Digital Converters (ADC) Feature Summary

• Integrated over-voltage protection for input channel robustness
• Flexible data output via selectable parallel or serial interfaces
• Internal and external reference voltage options for system flexibility

Analog To Digital Converters (ADC) Applications

• Industrial process control systems requiring high-resolution multi-channel acquisition
• Medical instrumentation utilizing single-ended sensor inputs
• Data acquisition modules in harsh environmental conditions

Analog To Digital Converters (ADC) Procurement Notes

Verify the specific suffix 'G4' against the manufacturer's current datasheet to confirm lead-free compliance and RoHS status. Ensure the SOIC-28 package dimensions match the target PCB footprint. Confirm that the required operating temperature range covers the intended application environment limits before finalizing procurement.

Analog To Digital Converters (ADC) Selection Notes

Select this component when four independent 16-bit channels are necessary with moderate speed requirements. The SAR architecture provides deterministic conversion times suitable for real-time control loops. Consider the 50 mW power consumption relative to thermal constraints in dense packaging. Verify interface compatibility with the host microcontroller for either parallel or serial modes.

Analog To Digital Converters (ADC) Part Context

The ADS7825UG4 belongs to the ADS7825 family of CMOS A/D converters. It shares architectural similarities with other devices in the series but is distinguished by its 16-bit resolution and four-channel configuration. The UG4 designation indicates a specific tape-and-reel or tube packaging variant compliant with modern environmental standards compared to older legacy parts.

Analog To Digital Converters (ADC) Replacement Considerations

The ADS7825U is the direct predecessor part number. Other family members like the ADS7824 offer lower resolution. Cross-check pinouts and electrical specifications carefully when substituting with similar SAR ADCs from different manufacturers.