AD5545

双通道，电流输出，串行输入， 16位/ 14位DAC Dual, Current-Output, Serial-Input, 16-/14-Bit DAC

Product Details

The /AD5555 are 16-bit/14-bit, current-output, digital- to-analog converters designed to operate from a single 5 V supply with bipolar output up to ±15 V capability.

An external reference is needed to establish the full-scale output-current. An internal feedback resistor RFB enhances the resistance and temperature tracking when combined with an external op amp to complete the I-to-V conversion.

A serial data interface offers high speed, 3-wire microcontroller compatible inputs using serial data in SDI, clock CLK, and chip select CS. Additional LDAC function allows simultaneous update operation. The internal reset logic allows power-on preset and dynamic reset at either zero or midscale, depending on the state of the MSB pin.

The AD5545/AD5555 are packaged in the compact TSSOP-16 package and can be operated from –40°C to +85°C.

**Applications**

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Automatic test equipment

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Instrumentation

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Digitally controlled calibration

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Industrial control PLCs

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Programmable attenuator

### Features and Benefits

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16-bit resolution

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±1 LSB DNL monotonic

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±1 LSB INL

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2 mA full-scale current ±20%, with VREF = 10 V

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0.5 μs settling time

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2Q multiplying reference-input 6.9 MHz BW

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Zero or midscale power-up preset

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Zero or midscale dynamic reset

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3-wire interface

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Compact TSSOP-16 package