TLC3545ID

Analog To Digital Converters (ADC) Overview

The TLC3545ID is a single-channel, 14-bit successive approximation register (SAR) analog-to-digital converter manufactured by Texas Instruments. It operates on a single 5V supply with voltage ranges of 4.5 V to 5.5 V for both analog and digital domains. The device supports sampling rates up to 200 kSPS and features a pseudo-differential or single-ended input structure. Communication is handled via a 3-wire SPI-compatible interface using Chip Select (CS), Serial Clock (SCLK), and Serial Data Output (SDO). Key performance metrics include an SNR of 82 dB, SINAD of 81.5 dB, and DNL/INL of +/- 1 LSB. It consumes 17 mW of power and functions within a temperature range of -40°C to +85°C.

Analog To Digital Converters (ADC) Feature Summary

• Integrates an internal oscillator to simplify system design by eliminating external clock requirements.
• Supports direct connection to most common host microprocessors through a standard 3-wire serial interface.
• Offers flexible input configurations supporting both pseudo-differential and single-ended signal types.

Analog To Digital Converters (ADC) Applications

• Data acquisition systems requiring high resolution and moderate speed.
• Industrial process control applications utilizing single-supply operation.
• Battery-powered instrumentation benefiting from low power consumption.

Analog To Digital Converters (ADC) Procurement Notes

Verify the specific suffix 'ID' indicates the industrial temperature grade (-40°C to +85°C) and SOIC-8 package variant. Confirm that the external reference voltage requirement matches the application's precision needs, as the device does not include an internal reference. Ensure the SPI timing parameters align with the host microcontroller's capabilities before finalizing procurement specifications.

Analog To Digital Converters (ADC) Selection Notes

Select the TLC3545ID when a 14-bit resolution and 200 kSPS throughput are required in a compact surface-mount package. Compare against the TLC3541 if dual channels are needed, or the TLC4545 series if 16-bit resolution is necessary. Consider the external reference dependency and ensure the system can accommodate the associated component count and layout constraints for optimal noise performance.

Analog To Digital Converters (ADC) Part Context

This component belongs to the TLC354x family of high-performance, low-power CMOS ADCs from Texas Instruments. The family shares similar architectural features, including SAR conversion and SPI interfaces, but varies in resolution and channel count. The TLC3545ID specifically represents the 14-bit, single-channel variant designed for cost-sensitive applications requiring precise analog-to-digital conversion without complex external clocking circuitry.

Analog To Digital Converters (ADC) Replacement Considerations

The TLC3545IDGK is a pin-compatible alternative in a VSSOP-8 package. For higher resolution needs, the TLC4545 series offers 16-bit performance. If dual channels are required, consider the TLC3541. Verify package dimensions and thermal characteristics when substituting between SOIC and VSSOP variants.