ADS7253C6RTER

Analog To Digital Converters (ADC) Overview

The ADS7253C6RTER is a dual-channel, simultaneous-sampling analog-to-digital converter (ADC) manufactured by Texas Instruments. It features a 12-bit resolution and a maximum sampling rate of 1 MSPS per channel. The device utilizes a Successive Approximation Register (SAR) architecture and supports differential, pseudo-differential, or single-ended input configurations. It operates with an analog supply voltage range of 4.5 V to 5.5 V and a digital I/O supply range of 1.65 V to 5.5 V. The component communicates via a high-speed SPI interface and is housed in a 16-pin WQFN package.

Analog To Digital Converters (ADC) Feature Summary

• Simultaneous sampling of two channels ensures accurate phase relationship between inputs.
• High dynamic performance with a Signal-to-Noise Ratio (SNR) of 73.5 dB at 1 MSPS.
• Flexible input support for differential, pseudo-differential, and single-ended signals.
• Integrated track-and-hold amplifiers eliminate the need for external buffering.

Analog To Digital Converters (ADC) Applications

• Industrial process control systems requiring precise multi-channel data acquisition.
• Medical instrumentation such as ECG and EEG signal processing.
• Vibration monitoring and acoustic emission testing in predictive maintenance.
• Power quality analysis and energy metering applications.

Analog To Digital Converters (ADC) Procurement Notes

Verify the 'C' suffix indicates the commercial temperature grade (-40°C to +85°C) against the specific datasheet revision. Confirm the 'IRTET' suffix corresponds to the 16-WQFN package and tape-and-reel quantity. Ensure compatibility with system voltage levels, particularly the 1.65 V to 5.5 V digital I/O range, before procurement.

Analog To Digital Converters (ADC) Selection Notes

Select this component when simultaneous sampling of two channels is required rather than sequential sampling found in other ADCs. Compare SNR and THD specifications against application requirements. Verify that the 1 MSPS speed meets the Nyquist criteria for the input signal bandwidth. Check if the 12-bit resolution provides sufficient dynamic range compared to 14-bit or 16-bit alternatives in the ADS725x family.

Analog To Digital Converters (ADC) Part Context

The ADS7253 belongs to the ADSxx53 family of dual, high-speed, simultaneous-sampling ADCs from Texas Instruments. This family includes variants with different resolutions (16-bit, 14-bit, and 12-bit). The ADS7253 specifically targets cost-sensitive applications where 12-bit resolution is adequate, offering a balance between performance and power consumption within the series.

Analog To Digital Converters (ADC) Replacement Considerations

ADS7253IRTET: Pin-compatible alternative with potentially different packaging or temperature grade. ADS7251IRTER: Higher speed variant (2 MSPS) with similar pinout but different electrical characteristics. ADS7254IRTET: Quad-channel version requiring different pin mapping. Verify thermal performance and software compatibility when substituting.