Power Supply | DAC Output | Voltage Output | Current Output |
---|---|---|---|
VCC: 24V, VSS: –5V, VDD: 5V | 0V to 2.5V | 0V to 5V | 0A to 10A |
Signal-measurement equipment like the oscilloscope (DSO) and data aquisition (DAQ) must manage input signals that are not within the input range of the measurement analog-to-digital converter (ADC). To bring the unknown input signal in the measurement range of the ADC, the first operation needed is offset control. A programmable offset control circuit providing both positive and negative offset, performs this function. This circuit uses a precision digital-to-analog converter (DAC), followed by a unipolar-to-bipolar conversion circuit using an op amp. The output of this circuit is fed to a summing amplifier that adds this DC output to the input signal.
That gives, RFB = 2 × RG2.
This means, RG1 = RFB.
Device | Key Features | Link |
---|---|---|
DAC80504 | 4-channel, true 16-bit, SPI, voltage-output DAC with precision internal reference | True 16-bit, 4-channel, SPI, voltage-output DAC in QFN package with precision internal reference |
DAC80508 | 8-channel, true 16-bit, SPI, voltage-output DAC with precision internal reference | 16-Bit, Ultralow Glitch, Voltage Output, Digital to Analog Converter |
DAC80004 | Ultra-small, true 16-bit quad voltage output DAC with 1LSB INL/DNL | Ultra-Small, true 16-bit quad voltage output DAC with 1LSB INL/DNL |
DAC8560 | 16-bit, single-channel, low-power, ultra-low glitch, voltage output DAC with 2.5V, 2ppm/°C reference | 16-bit, single-channel, low-power, ultra-low glitch, voltage output DAC with 2.5V,2ppm/°C reference |
OPA227 | High precision, low noise operational amplifiers | High Precision, Low Noise Operational Amplifiers |
OPA188 | Precision, low-noise, rail-to-rail output, 36-V zero-drift operational amplifier | Precision, Low-Noise, Rail-to-Rail Output, 36V Zero-Drift Operational Amplifier |
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