TLV1543CFNR

Analog To Digital Converters (ADC) Overview

The TLV1543CFNR is a CMOS 10-bit switched-capacitor successive-approximation analog-to-digital converter manufactured by Texas Instruments. It features an on-chip 14-channel multiplexer providing access to 11 analog inputs and three internal self-test voltages. The device operates with a supply voltage range of 3 V to 5.5 V for the C-grade variant and utilizes a direct 4-wire serial interface compatible with host processor ports. Key electrical parameters include a maximum total unadjusted error of ±1 LSB, a clock frequency limit of 1.1 MHz, and operation within a temperature range of 0°C to 70°C.

Analog To Digital Converters (ADC) Feature Summary

• CMOS technology enables low-power operation and high-speed data transfers via a versatile serial control interface.
• Integrated sample-and-hold function and differential high-impedance reference inputs facilitate ratiometric conversion and noise isolation.
• Built-in self-test modes allow verification using internal reference voltages without external circuitry.
• Pin-compatible design ensures seamless integration as a drop-in replacement for TLC1543 devices.

Analog To Digital Converters (ADC) Applications

• Industrial process control systems requiring multi-channel signal acquisition
• Data-acquisition modules for remote sensor monitoring
• Battery-powered instrumentation utilizing low-voltage operation
• Automotive electronic testing equipment

Analog To Digital Converters (ADC) Procurement Notes

Verify that the ordering suffix CFNR corresponds to the specified plastic chip carrier package (FN) and commercial temperature grade (C). Confirm the manufacturer source is authorized to ensure component authenticity. Check datasheet revision SLAS072E for any updates regarding recommended operating conditions or absolute maximum ratings prior to finalizing procurement specifications.

Analog To Digital Converters (ADC) Selection Notes

Select this component when a 10-bit resolution and 11 analog input channels are required in a compact surface-mount footprint. Ensure the host system supports the specific serial timing modes defined in the datasheet, particularly regarding I/O CLOCK frequency limits of 1.1 MHz for the C-grade device. Verify that the driving source impedance remains below 1 kΩ to maintain sampling accuracy during the charge redistribution phase.

Analog To Digital Converters (ADC) Part Context

The TLV1543 series belongs to Texas Instruments' family of 10-bit successive-approximation ADCs. It serves as a functional equivalent to the TLC1543 but offers improved performance characteristics suitable for lower voltage applications. The CFNR designation specifically identifies the commercial grade version packaged in a 20-pin plastic chip carrier format designed for automated surface-mount assembly processes.

Analog To Digital Converters (ADC) Replacement Considerations

The TLV1543CFN is the lead-free equivalent offering identical pinout and functionality. Direct replacements include the TLC1543CDW and TLC1543CN for through-hole or wider SOIC packaging requirements. Verify thermal management capabilities if substituting into designs originally optimized for the industrial or military temperature grades.