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Применения > > Unipolar, Precision DC Digital-to-Analog Conversion using the AD5450/AD5451/AD5452/AD5453 8-/10-/12-/14-Bit DACs

Unipolar, Precision DC Digital-to-Analog Conversion using the AD5450/AD5451/AD5452/AD5453 8-/10-/12-/14-Bit DACs (CN0052)

The circuit described in this document is a high-performance, unipolar, precision DAC configuВ­ration which employs theAD5450/AD5451/AD5452/AD5453 family of precision multiplying DACs, the OP177 low-noise, high precision operational amplifier (op-amp) and the ADR01 precision 10 V reference. Because the op amp dictates the overall circuit dc performance in terms of precision, the OP177, a high precision, low noise op amp, is well matched for performance-driven applications. This circuit also uses the ADR01, which is a high accuracy, high stability, 10 V precision voltage reference. Because voltage reference temperature coefficient and long-term drift are primary considerations for applications requiring high precision conversion, this device is also an ideal candidate.



Figure 1. Unipolar Precision DC Configuration (Simplified Schematic: Decoupling and All Connections Not Shown)

Возможности

  • Programmable output levels
  • Inverting signal configuration
  • High performance, low noise

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