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双电流输出串行输入16/14位数模转换器ad5555/AD5545数据表
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The AD5545/AD5555 are 16-bit/14-bit， current-output， digitalto-analog converters designed to operate from a 4.5 V to 5.5 V supply range. 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.
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