LTC7541A Datasheet | Linear Technology

LTC7541A Improved Industry Standard CMOS 12-Bit Multiplying DAC Features s s s DESCRIPTION The LTC® 7541A is a 12-bit resolution multiplying digitalto-analog converter (DAC). Laser-trimmed thin-film resistors provide excellent absolute accuracy. Precision matched resistors and CMOS circuitry result in remarkable stability with temperature and supply variations. The LTC7541A is a superior pin patible replacement for the industry standard AD7541A/AD7541. Improvements include better typical accuracy and stability and reduced sensitivity to output amplifier offset. The LTC7541A is also very resistant to latch-up. In addition to 2-quadrant and 4-quadrant multiplying configurations, the LTC7541A performs well in digitally programmable gain and noninverting voltage output applications. Low cost, improved performance and versatility make the LTC7541A the best choice for many new designs and for upgrading existing systems. Parts are available in 18-pin PDIP and 18-pin SO Wide packages. , LTC and LT are registered trademarks of Linear Technology Corporation. s s s s s s s s Improved Direct Replacement for AD7541A and AD7541 4-Quadrant Multiplication 12-Bit End-Point Linearity: ± 0.5LSB DNL and INL Over Temperature All Grades Guaranteed Monotonic Maximum Gain Error: ± 1LSB Single 5V to 15V Supply TTL and CMOS Logic patible Reduced Sensitivity to Op Amp Offset Low Power Consumption Virtually Latch-Up Proof Low Cost U APPLICATIONS s s s s s Motion Control Systems Microprocessor-Controlled Calibration Automatic Test Equipment Programmable Gain Amplifiers Digitally Controlled Filters TYPICAL APPLICATION 2-Quadrant Multiplying DAC Has Less Than 0.5LSB (Typ) Total Unadjusted Error VIN 15V Integral Nonlinearity Over Temperature INTEGRAL NONLINEARITY (LSB) 0.1µF 17 16 VDD VREF 18 RFB 1 OUT 1 33p F 0.5 TA = 85°C 0 TA = - 40°C - 0.5 TA = 25°C - + LT ®1097 VOUT LTC7541A OUT 2 2 GND 4 TO 15 DIGITAL INPUTS 3 7541 TA01 - 1.0 512 1024 1536 2048 2560 3072 3584...