LTC1655L

UU U FEATURES s 16-Bit Monotonicity Over Temperature s Deglitched Rail-to-Rail Voltage Output s SO-8 Package s ICC(TYP): 600µA s Internal Reference: 2.048V (LTC1655) 1.25V (LTC1655L) s Maximum DNL Error: ±1LSB s Settling Time: 20µS to ±1LSB s 750kHz Max Update Rate s Power-On Reset to Zero Volts s 3-Wire Cascadable Serial Interface s Low Cost s Pin Compatible Upgrade for LTC1451 12-Bit DAC Family U APPLICATIO S s Digital Calibration s Industrial Process Control s Automatic Test Equipment s Cellular Telephones W FU CTIO AL BLOCK DIAGRA LTC1655/LTC1655L 16-Bit Rail-to-Rail Micropower DACs in SO-8 Package DESCRIPTIO The LTC®1655/LTC1655L are rail-to-rail voltage output, 16-bit digital-to-analog converters in an SO-8 package. They include an output buffer and a reference. The 3-wire serial interface is compatible with SPI/QSPI and MICROWIRETM protocols. The CLK input has a Schmitt trigger that allows direct optocoupler interface. The LTC1655 has an onboard 2.048V reference that can be overdriven to a higher voltage. The output swings from 0V to 4.096V when using the internal reference. The typical power dissipation is 3.0mW on a single 5V supply. The LTC1655L has an onboard 1.25V reference that can be overdriven to a higher voltage. The output swings from 0V to 2.5V when using the internal reference. The typical power dissipation is 1.8mW on a single 3V supply. The LTC1655/LTC1655L are pin compatible with Linear Technology’s 12-bit VOUT DAC family, allowing an easy upgrade path...