TLC3544IPW

Analog To Digital Converters (ADC) Overview

The TLC3544IPW is a 14-bit, high-performance CMOS analog-to-digital converter (ADC) featuring four pseudodifferential analog input channels. It operates from a single 5-V analog supply and a 3-V to 5-V digital supply, achieving a maximum throughput of 200 KSPS. The device integrates an internal 4-V reference, conversion clock, and an 8x FIFO buffer. It supports SPI and DSP-compatible serial interfaces with SCLK frequencies up to 25 MHz. Key performance metrics include ±1 LSB max INL/DNL, 80.8 dB SINAD at 20 kHz, and -95 dB THD. The component is housed in a 20-pin TSSOP (PW) package and is rated for industrial operating temperatures ranging from -40°C to +85°C.

Analog To Digital Converters (ADC) Feature Summary

• 14-bit resolution with 200 KSPS throughput rate
• Four pseudodifferential analog inputs with integrated multiplexer
• Internal 4-V reference and built-in conversion clock
• SPI/DSP-compatible serial interface supporting SCLK up to 25 MHz

Analog To Digital Converters (ADC) Applications

• Industrial process control systems requiring multi-channel data acquisition
• Portable instrumentation utilizing low-power operation modes
• DSP-based signal processing architectures
• Automotive sensor interface circuits

Analog To Digital Converters (ADC) Procurement Notes

Verify the specific suffix 'IPW' corresponds to the industrial temperature range (-40°C to 85°C) and the 20-pin TSSOP package. Confirm that the source documentation explicitly lists this part number as available for production. Ensure compatibility with 3-V to 5-V digital logic levels if interfacing with lower voltage microcontrollers.

Analog To Digital Converters (ADC) Selection Notes

Select the TLC3544IPW when four independent analog channels are required within a single package. Choose this model over the TLC3548 if channel count is limited to four. Consider the internal 4-V reference for simplified design; however, external references may be necessary if higher precision or different voltage ranges are required. Verify that the 200 KSPS sampling rate meets the Nyquist requirements for the target signal bandwidth.

Analog To Digital Converters (ADC) Part Context

The TLC3544 belongs to the TLC354x family of 14-bit ADCs manufactured by Texas Instruments. This family includes the TLC3548, which offers eight channels in a similar form factor. The IPW suffix denotes the industrial temperature grade and plastic TSSOP packaging. These devices were introduced to provide high-speed, low-power solutions for embedded data acquisition applications.

Analog To Digital Converters (ADC) Replacement Considerations

The TLC3548IDW serves as a functional substitute if eight channels are acceptable instead of four, provided the pinout compatibility is verified. Other 14-bit SAR ADCs from Texas Instruments may require significant schematic and firmware modifications due to differences in interface protocols and pin configurations.