AD7394

a FEATURES Micropower: 100 ␮ A/DAC 0.1 ␮A Typical Power Shutdown Single-Supply +2.7 V to +5.5 V Operation Compact 1.1 mm Height TSSOP-14 Package AD7394/12-Bit Resolution AD7395/10-Bit Resolution Serial Interface with Schmitt Trigger Inputs APPLICATIONS Automotive Output Span Voltage Portable Communications Digitally Controlled Calibration PC Peripherals CS CLK EN +3 V, Dual, Serial Input 12-/10-Bit DACs AD7394/AD7395 FUNCTIONAL BLOCK DIAGRAM VDD VREF OP AMP A DAC A VOUTA R E D G A I C S T A E R D S H I F T R E G I S T E R P R 12 SDI (DATA) AD7394/AD7395 D R E D G A I C S T B E R P R OP AMP B DAC B VOUTB LDA GENERAL DESCRIPTION LDB The AD7394/AD7395 family of dual, 12-/10-bit, voltage output digital-to-analog converters is designed to operate from a single +3 V supply. Built using a CBCMOS process, this monolithic DAC offers the user low cost and ease of use in single-supply +3 V systems. Operation is guaranteed over the supply voltage range of +2.7 V to +5.5 V making this device ideal for battery operated applications. The full-scale output voltage is determined by the applied external reference input voltage, VREF. The rail-to-rail VREF input to VOUT outputs allows for a full-scale voltage set equal to the positive supply VDD or any value in between. A doubled-buffered serial data interface offers high speed, microcontroller compatible inputs using serial-data-in (SDI), clock (CLK) and load strobe (LDA + LDB) pins. A chip-select (CS) pin simplifies connection of mult...