LTC8143FSW#PBF

Digital To Analog Converters Overview

The LTC8143FSW#PBF is a serial-input, 12-bit multiplying digital-to-analog converter (DAC) manufactured by Analog Devices Inc. It serves as an improved pin-compatible replacement for the AD7543 and DAC-8143. The device features a flexible 3-wire serial interface with a daisy-chain capability via a dedicated SRO output pin. Key electrical specifications include a maximum gain error of ±2 LSB over the temperature range, integral nonlinearity (INL) of ±1 LSB, and differential nonlinearity (DNL) of ±1 LSB. It operates within a supply voltage range of 4.75V to 5.25V and supports an extended industrial operating temperature range from -40°C to +85°C.

Digital To Analog Converters Feature Summary

• 12-bit resolution with ±1 LSB INL and DNL accuracy over temperature
• 3-wire serial interface with daisy-chain capability for multiple DAC systems
• Asynchronous clear input for initialization to a known state
• Supports four-quadrant multiplication and programmable gain applications

Digital To Analog Converters Applications

• Process control and industrial automation systems
• Remote microprocessor-controlled systems
• Digitally controlled filters and power supplies
• Programmable gain amplifiers
• Automatic test equipment

Digital To Analog Converters Procurement Notes

Verify the package type corresponds to the SW suffix (16-lead Plastic SOL). Confirm the grade suffix matches the required accuracy specifications (F grade has ±1 LSB INL/DNL). Ensure the #PBF designation indicates lead-free compliance. Check for RoHS status in official documentation before procurement.

Digital To Analog Converters Selection Notes

Select the LTC8143FSW#PBF when daisy-chaining multiple DACs on a single bus is required, utilizing its SRO output. Choose this part over the LTC7543 if system initialization via an asynchronous clear input is necessary. Verify that the ±1 LSB linearity specification meets the application requirements compared to the higher precision LTC7543K grade.

Digital To Analog Converters Part Context

This component belongs to the LTC7543/LTC8143 family of serial 12-bit multiplying DACs. The LTC8143 variant specifically adds a serial data output (SRO) to facilitate cascading devices, distinguishing it from the standard LTC7543. The FSW suffix denotes the F grade accuracy level housed in a 16-lead SO wide package.

Digital To Analog Converters Replacement Considerations

The datasheet identifies the LTC8143 as a direct pin-compatible replacement for the AD7543 and DAC-8143. When substituting these legacy parts, verify that the improved stability and tighter timing specifications are compatible with the existing system design.