LTC7545A Datasheet | Linear Technology

LTC7545A Improved Industry Standard Parallel 12-Bit Multiplying DAC Features s s s s s s s DESCRIPTIO Improved Direct Replacement for AD7545A and AD7545 DNL and INL Over Temperature: ± 0.5LSB Gain Error: ±1LSB Maximum 4-Quadrant Multiplication Single 5V or 15V Supply Low Power Consumption Low Cost The LTC ® 7545A is a 12-bit multiplying digital-to-analog converter (DAC) with a microprocessor patible parallel input. It is a superior pin patible replacement for the industry standard AD7545A and AD7545. Improvements include better accuracy, better stability over temperature and supply variations and lower sensitivity to output amplifier offset. This very versatile DAC is useful for 2-quadrant and 4-quadrant multiplying, programmable gain and filtering and single supply noninverting voltage output operation. Parts are available in 20-pin PDIP and SO packages and mercial and industrial temperature grades. , LTC and LT are registered trademarks of Linear Technology Corporation. APPLICATI s s s s Process Control and Industrial Automation Software Controlled Gain Adjustment Digitally Controlled Filter and Power Supplies Automatic Test Equipment TYPICAL APPLICATI 2-Quadrant Multiplying DAC Has Less Than 0.5LSB (Typ) Total Unadjusted Error VIN 5V 0.1µF Integral Nonlinearity Over Temperature INTEGRAL NONLINEARITY (LSB) 18 19 20 RFB VDD VREF 1 OUT1 LTC7545A AGND 2 DGND 4- 15 3 33p F 0.5 TA = 85°C 0 TA = - 40°C - 0.5 TA = 25°C - + LT ®1097 VOUT WR CS 17 16 7545A TA01 - 1.0 512 1024 1536 2048 2560 3072 3584 4095 DIGITAL INPUT CODE 7545A TA02 LTC7545A ABSOLUTE AXI U RATI GS PACKAGE/ORDER I FOR ATIO TOP VIEW OUT1 1 AGND 2 DGND 3 DB11 (MSB) 4 DB10 5 DB9 6 DB8 7 DB7 8 DB6 9 DB5 10 N PACKAGE 20-LEAD PDIP 20 RFB 19 VREF 18 VDD 17 WR 16 CS 15 DB0 (LSB) 14 DB1 13 DB2 12 DB3 11 DB4 SW PACKAGE 20-LEAD PLASTIC SO WIDE VDD to AGND ............................................ - 0.5V to 17V VDD to DGND ...............................................