TLC3548IPW

Analog To Digital Converters (ADC) Overview

The TLC3548IPW is a 14-bit, 200-kSPS serial analog-to-digital converter (ADC) from Texas Instruments. It features eight pseudodifferential analog inputs and operates with a single 5-V analog supply and a 3-V to 5-V digital supply. 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 maximum INL and DNL, a typical SINAD of 80.8 dB, and THD of -95 dB at 20 kHz. Power consumption is 4 mA in normal operation and drops to 20 µA in autopower-down mode.

Analog To Digital Converters (ADC) Feature Summary

• 14-bit resolution with 200 kSPS throughput rate
• Eight pseudodifferential analog input channels
• Integrated 4-V reference, oscillator, and 8x FIFO
• SPI/DSP compatible serial interface with SCLK up to 25 MHz

Analog To Digital Converters (ADC) Applications

• Industrial process control systems
• Data acquisition modules
• Portable instrumentation

Analog To Digital Converters (ADC) Procurement Notes

Verify the package type matches the PW (TSSOP-20) designation. Confirm the 'I' suffix indicates the industrial temperature range of -40°C to 85°C. Ensure the source document corresponds to the specific revision SLAS266C for accurate electrical specifications.

Analog To Digital Converters (ADC) Selection Notes

Select the TLC3548IPW when eight analog channels are required. Choose this part over the TLC3544 if more than four inputs are needed. Verify that the system can accommodate the 5-V analog supply requirement. Check if the internal 4-V reference meets the application's accuracy needs or if an external reference is necessary.

Analog To Digital Converters (ADC) Part Context

The TLC3548 is part of the TLC3544/TLC3548 family of high-performance, low-power CMOS ADCs. It shares the same architecture and interface protocols as the 4-channel TLC3544 but provides double the analog input count. Both devices utilize the same TSSOP and SOIC packages and operate under similar power and timing constraints.

Analog To Digital Converters (ADC) Replacement Considerations

The TLC3544CPW and TLC3544IDW are functionally identical except for having four analog inputs instead of eight. Other members of the family share the same package and interface characteristics.