TLC2551IDR

Analog To Digital Converters (ADC) Overview

The TLC2551IDR is a 12-bit successive approximation register (SAR) analog-to-digital converter manufactured by Texas Instruments. It operates on a single 4.5 V to 5.5 V supply and features a single-ended analog input with rail-to-rail capability and a 500 kHz bandwidth. The device utilizes a 3-wire SPI-compatible serial interface supporting SCLK frequencies up to 20 MHz, enabling maximum throughput of 400 kSPS under DSP control or 360 kSPS via CS control. Key electrical specifications include ±1 LSB integral and differential nonlinearity, a signal-to-noise and distortion ratio of 72 dB at 400 kSPS, and an operating temperature range from -40°C to +85°C. Power consumption is minimized through an autopower-down mode reducing current to 8 µA.

Analog To Digital Converters (ADC) Feature Summary

• Integrates an autopower-down mechanism that significantly reduces active supply current during inactive periods between conversion cycles.
• Features a high-speed serial link compatible with standard microprocessor SPI ports and TMS320 DSP frame sync signals for flexible system integration.
• Employs a charge redistribution DAC architecture within the SAR structure to achieve synchronous operation and precise data acquisition.

Analog To Digital Converters (ADC) Applications

• Data acquisition systems requiring low-power 12-bit resolution
• Industrial process control monitoring
• Battery-powered instrumentation

Analog To Digital Converters (ADC) Procurement Notes

Verify the ordering suffix 'IDR' corresponds to the SOIC-8 tape and reel packaging configuration as specified in the manufacturer's package options addendum. Confirm that the component meets the required industrial temperature grade (-40°C to +85°C) for the intended operational environment. Ensure compatibility with the external reference voltage requirements defined in the datasheet specifications.

Analog To Digital Converters (ADC) Selection Notes

Select this component when a single-channel 12-bit ADC with low power consumption is required. The TLC2551IDR is suitable for applications needing up to 400 kSPS sampling rates with SPI or DSP interfaces. Consider the TLC2552 if dual-channel input with autosweep functionality is necessary instead of a single channel.

Analog To Digital Converters (ADC) Part Context

The TLC2551IDR belongs to the TLC255x family of 5-V, low-power, 12-bit serial analog-to-digital converters. This family includes the TLC2551 (single channel), TLC2552 (dual channels with autosweep), and TLC2555 (single pseudo-differential channel). All variants share similar SAR architecture and power-saving features but differ in input configurations and multiplexing capabilities.

Analog To Digital Converters (ADC) Replacement Considerations

TLC2551IDGK