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Precision, Bipolar
Configuration for the AD5426/AD5432/AD5443 8-Bit to12-Bit DACs
- The transfer function of this circuit shows that both negative and positive
output voltages are created as the input data, D, is incremented from code zero (V OUT = − V REF ) to midscale (V
OUT = 0 V) to full scale (V OUT = + V REF. . . [Analog Devices-Circuits from the Lab]
Precision, Bipolar,
Configuration for the AD5450/1/2/3 8-14bit Multiplying DACs
- The transfer function of this circuit shows that both negative and positive
output voltages are created as the input code, D, is incremented from Code 0 (V OUT = − V REF ) to midscale (V
OUT = 0 V ) to full-scale (V OUT = +V REF A change in this noise gain between two adjacent codes produces a step
change in the output voltage due to the amplifier’s input offset voltage. This output voltage change is
superimposed on the desired change in output between the two codes and gives rise to a differential linearity
error, which, if large enough, can cause the DAC to be nonmonotonic. , In general, the input offset voltage
should be a fraction of an LSB to ensure monotonic behavior when stepping through codes. . . [Analog
Devices-Circuits from the Lab]
Precision, Unipolar,
Inverting Conversion Using the AD5546/AD5556 DAC - In
general, the input offset voltage should be a fraction of an LSB to ensure monotonic behavior when stepping
through codes. VOUT can be calculated for the AD5546 using the equation where D is the decimal equivalent of the
input code. VOUT can be calculated for the AD5556 using the equation where D is the decimal equivalent of the
input code. , For multichannel applications, the AD8629 is a dual version of the AD8628. . . [Analog
Devices-Circuits from the Lab]
Precision, Unipolar,
Inverting Conversion Using the AD5547/AD5557 DAC - In
general, the input offset voltage should be a fraction of an LSB to ensure monotonic behavior when stepping
through codes. VOUT can be calculated for the AD5547 using the equation where D is the decimal equivalent of the
input code. VOUT can be calculated for the AD5557 using the equation where D is the decimal equivalent of the
input code. , For multichannel applications, the AD8629 is a dual version of the AD8628. . . [Analog
Devices-Circuits from the Lab]
Programmable Gain & Attenuation Amplifier Design - AN-137
Analog Devices App Note. . .
Programmable Gain Element
Using the AD5426/AD5432/AD5443 Current Output DACs - This
output voltage change is superimposed on the desired change in output between the two codes and gives rise to a
differential linearity error that, if large enough, could cause the DAC to be nonmonotonic. . . [Analog
Devices-Circuits from the Lab]
Programmable Gain Element
Using the AD5450/AD5451/AD5452/AD5453 Current Output DAC Family
- A change in this noise gain between two adjacent digital codes produces a
step change in the output voltage due to the amplifier’s input offset voltage. This output voltage change is
superimposed on the desired change in output between the two codes and produces a diffe-rential linearity error,
which if large enough, could cause the DAC to be non-monotonic. . . [Analog Devices-Circuits from the Lab]
Pushbutton or logic controls nonvolatile DAC - 11/19/98
EDN Design Idea (File has serval designs) For manual control of analog signals, it's hard to beat the
venerable precision multiturn potentiometer's simplicity, resolution, and power-off nonvolatility. When digital
control of an analog parameter is the design objective, a universe of DACs is available to the designer. The
circuit in Figure 1, however, has manual-pushbutton and CMOS/TTL-compatible digital interfaces to a 10-bit,
nonvolatile, two- or four-quadrant multiplying DAC. The heart of the circuit is the Xicor (Milpitas, CA) X9511
PushPot series of digitally controlled potentiometers. . . . [by Stephen Woodward, University of North Carolina,
Chapel Hill, NC]
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