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DAC3482: different output voltage levels within two channels of same DAC

Part Number: DAC3482


We are using DAC3482 in our project.

Below are the values which we have written to DAC registers:

x00 x029C
x01 x100E
x02 xF082
x03 xF000
x04 x0000
x05 x3E40
x06 x2E00
x07 x0000
x08 x0000
x09 x8000
x0A x0000
x0B x0000
x0C x0400
x0D x0400
x0E x0400
x0F x0400
x10 x3000
x11 x0000
x12 x0000
x13 x0000
x14 x0000
x15 x0000
x16 x0000
x17 x0000
x18 x246C
x19 x0404
x1A xEC00
x1B x0000
x1C x0000
x1D x0000
x1E x1111
x1F x1140
x20 x2201
x22 x1B1B
x23 xFFFF
x24 x0000
x25 x7A7A
x26 xB6B6
x27 xEAEA
x28 x4545
x29 x1A1A
x2A x1616
x2C xC6C6
x2D x0000
x2E x0000
x2F x0000
x30 x0000
x7F x0004

Now our problem is that we are getting different output voltages from two channels.

We are getting around 1.26v from Q channel and around 1v from I channel.

Please help us to get the same output voltage level from both channels.