TLV1544IPWG4

Analog To Digital Converters (ADC) Overview

The TLV1544IPWG4 is a low-voltage, 10-bit analog-to-digital converter featuring an integrated 8-channel analog multiplexer. It operates on a single supply voltage ranging from 2.7 V to 5.5 V with an analog input range spanning 0 V to VCC. The device utilizes a switched-capacitor successive-approximation architecture and supports serial interfaces compatible with SPI and QSPI protocols. Key features include programmable power-down modes consuming as little as 1 μA, built-in self-test capabilities, and asynchronous start functionality for extended sampling cycles.

Analog To Digital Converters (ADC) Feature Summary

• Integrated 8-channel analog multiplexer with break-before-make switching to minimize channel noise injection
• Flexible serial interface supporting both microprocessor SPI/QSPI and TMS320 DSP communication modes
• Programmable conversion rates allowing selection between fast and slow speeds to optimize power consumption
• Built-in self-test modes providing access to internal reference voltages for system verification

Analog To Digital Converters (ADC) Applications

• Data acquisition systems requiring low-power operation
• Industrial process control monitoring
• Battery-powered instrumentation
• TMS320 digital signal processor peripheral interfaces

Analog To Digital Converters (ADC) Procurement Notes

Verify the specific package variant (PW) and temperature grade (I) against design requirements. Confirm that the industrial temperature range of -40°C to 85°C aligns with the operational environment. Ensure the host system provides adequate drive capability for the serial interface signals at the required clock frequencies.

Analog To Digital Converters (ADC) Selection Notes

Select this component when an 8-channel multiplexed ADC is needed within a low-voltage system. Consider the TLV1548 if additional analog channels are required. Evaluate the source impedance of the analog inputs; high impedance sources may necessitate the use of the asynchronous CSTART pin for extended sampling times to ensure accurate conversion results.

Analog To Digital Converters (ADC) Part Context

The TLV1544 belongs to the Texas Instruments TLV154x family of low-voltage SAR ADCs. This series includes variants such as the TLV1548, which offers eight analog inputs compared to the four found in other family members. The IPWG4 suffix indicates the industrial temperature grade and the specific TSSOP-20 package configuration used for surface-mount assembly.

Analog To Digital Converters (ADC) Replacement Considerations

The TLV1548IPWG4 serves as a direct functional substitute offering eight analog inputs instead of four. Other family members like the TLV1544C or TLV1544ID offer different temperature ranges but maintain identical electrical characteristics and pinouts.