AD7541A: Using a current out MDAC in voltage switching mode

Q In data sheets I have seen the circuits for OUT-Vin to 0, +Vin to - Vin, -Vin/2 to +Vin/2, but I need 0 to +Vin. I guess that it is the typical use, so it is automatical without OAmp and without feedback resistor, isn't it? A The circuit to obtain Vout from 0 to Vin is shown in figure 7 on page 6 of the datasheet, in the section entitled "Single Supply operation". Note that in this case the applications circuit is turned around the opposite way: the fixed reference is applied to OUT1, OUT2 is connected to ground and the output is taken from Vref. A buffer amplifier is required since the output resistance at Vref is typically 11kOHMS with a range from 7kOhms to 18kOhms.

I would like to calculate the total temp. Coefficient of this component.

Q I would like to calculate the total temp. Coefficient of this component. If i use the RFB as the feedback resistor of the external Amp. and connect an external Ref. what is the total temp. Coefficient with respect to the following Spec's: 1. Gain Temp. Coeff.: 5ppm/C 2. Input Res. Temp. Coeff.: -300ppm/C A Provided that the Vref is a low impedance source, the effect of the absolute change in i/p resistance will not affect the gain tempco of the device. Therefore you should use a low impedance ref source and use the gain temp.co-eff of 5ppm/degC as your reference.

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AD7541A Not Recommended for New Designs
The AD7541A is a high performance, 12-bit monolithic multiplying digital-to-analog converter (DAC). It is fabricated using advanced, low noise, thin film...
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AD7541A on Analog.com

Table of Contents

+Documents
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- I would like to calculate the total temp. Coefficient of this component.
- AD7541A: Using a current out MDAC in voltage switching mode
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