digital Integrated Circuit Data Acquisition - Digital to Analog Converters DAC IC AD5544ARSZ

AD5544ARSZ

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Integrated Circuit Data Acquisition - Digital to Analog Converters DAC IC AD5544ARSZ

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FEATURES

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AD5544: 16-bit resolution INL of andplusmn;1 LSB (B Grade) AD5554: 14-bit resolution INL of andplusmn;0.5 LSB (B Grade) 2 mA full-scale current andplusmn; 20%, with VREF = andplusmn;10 V 0.9 andmu;s settling time to andplusmn;0.1% 12 MHz multiplying bandwidth Midscale glitch of andminus;1 nV-sec Midscale or zero-scale reset 4 separate, 4-quadrant multiplying reference inputs SPI-compatible, 3-wire interface Double-buffered registers enable Simultaneous multichannel change Internal power-on reset Temperature range: andminus;40anddeg;C to +125anddeg;C Compact 28-lead SSOP and 32-lead LFCSP

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GENERAL DESCRIPTION The AD5544/AD5554 quad, 16-/14-bit, current output, digitalto-analog converters (DACs) are designed to operate from a 2.7 V to 5.5 V supply range. The applied external reference input voltage (VREFx) determines the full-scale output current. Integrated feedback resistors (RFB) provide temperature-tracking, full-scale voltage outputs when combined with an external I-to-V precision amplifier. A double-buffered serial data interface offers high speed, 3-wire, SPI- and microcontroller-compatible inputs using serial data in (SDI), a chip select (CS), and clock (CLK) signals. In addition, a serial data out pin (SDO) allows for daisy-chaining when multiple packages are used. A common, level-sensitive, load DAC strobe (LDAC) input allows the simultaneous update of all DAC outputs from previously loaded input registers. Additionally, an internal power-on reset forces the output voltage to 0 at system turn-on. The MSB pin allows system reset assertion (RS) to force all registers to zero code when MSB = 0 or to half-scale code when MSB = 1.

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APPLICATIONS

Automatic test equipment Instrumentation Digitally controlled calibration

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Our Strong brand: TI, ST, AD Maxim, Microchip,NXP Samsung, Murata, Yageo etc

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