Unpolar to bipolar conversion

[ombalone]

I have a unipolar DAC which gives only +ve o/p.

i want it should be bipolar varies dynamically with the given i/p.

i want a single ckt at the o/p of DAC that will handle the conversion of

Unipolar to bipolar, please suggest me the ckt that will done conversion.


om

 

[Prototyp_V1.0]

What do you mean by "ckt"?

The easiest way to solve is to use a simple opamp adder circuit and add a negative voltage.

 

[karesz]

Hi your circuit is only one external op Amp + passives, their are in moderner DACs onchip..
https://www.linear.com/pc/productDetail.jsp?navId=H0,C1,C1155,C1005,C1156,P38512
K.

 

[srizbf]

connect a capacitor in the o/p of DAC.

you will get bot + and - excursion.

srizbf
3rdjuly2010

 

[elrayes]

use a clamping circuit to change the dynamic span of the output from +ve only to the range you want.

 

[karesz]

Hi,
These "simple circuit" called over long years and long too in our future: "second OP" with gain of 2 ....
Check pls. the LT Application, but its a well knowed circuit technik from all DAC vendors.
K.