LTC7543 Datasheet | Linear Technology

LTC7543/LTC8143 Improved Industry Standard Serial 12-Bit Multiplying DACs Features s s s s s DESCRIPTION The LTC® 7543/LTC8143 are serial-input 12-bit multiplying digital-to-analog converters (DACs). They are superior pin patible replacements for the AD7543 and DAC-8143. Improvements include better accuracy, better stability over temperature and supply variations, lower sensitivity to output amplifier offset, tighter timing specifications and lower output capacitance. An easy-to-use serial interface includes an asynchronous CLEAR input for systems requiring initialization to a known state. The LTC8143 has a serial data output to allow daisychaining multiple DACs on a 3-wire interface bus. These DACs are extremely versatile. They can be used for 2-quadrant and 4-quadrant multiplying, programmable gain and single supply applications, such as noninverting voltage output and biased or offset ground mode. Parts are available in 16-pin PDIP and SO packages and are specified over the extended industrial temperature range, - 40°C to 85°C. , LTC and LT are registered trademarks of Linear Technology Corporation. s s s s s Improved Direct Replacement for AD7543 and DAC-8143 Low Cost DNL and INL Over Temperature: ± 0.5LSB Easy, Fast and Flexible Serial Interface Daisy-Chain 3-Wire Interface for Multiple DAC Systems (LTC8143) 1LSB Maximum Gain Error Over Temperature Eliminates Adjustment Asynchronous Clear Input for Initialization Four-Quadrant Multiplication Low Power Consumption 16-Pin PDIP and SO Packages U APPLICATIONS s s s s s Process Control and Industrial Automation Remote Microprocessor-Controlled Systems Digitally Controlled Filters and Power Supplies Programmable Gain Amplifiers Automatic Test Equipment TYPICAL APPLICATION Multiplying DAC Has Easy 3-Wire Serial Interface VIN 5V 14 15 16 RFB VDD VREF 1 OUT 1 STB1 LTC7543 SRI LTC8143 LD1 OUT 2 2 DGND AGND 12 3 33p F INTEGRAL NONLINEARITY (LSB) Integral Nonlinearity Over Temperature CLOCK DATA LOAD 4 7...