TL082 op amp output is shifted

[miscaller]

I am using TL082 amplifier to get the gain of 10.Input of circuit is 10mV(10m to -10m) sine wave but the output i get is 50m to -150m.My output is shifted(50mv down).
Can anybody tell me the reason.
Schematics and output are given below.I m using non inverting configuration of op amp.Will inverting configuration may solve my problem?
Secondly,when i make it two stage amplifier and replicate that schematics for 10*10=100 gain Proteus gives me error
Matrix is singular.




So please help to solve these problems

Waiting your replies

 

[LvW]

My first idea is the input offset voltage which in this case would be approx. 5mvolts (data sheet: 5...20mvolts).
By the way: Your noninv. amplifier has a gain of 11.

 

[Pjdd]

Is the offset output the result of a practical construction or a simulation? If it's a practical one, here are some possible reasons:

1. DC bias in the signal.
2. Opamp input offset
3. Offset in + and - power supply

What's the output when there's no input?

 

[erikl]

I am using TL082 amplifier to get the gain of 10.Input of circuit is 10mV(10m to -10m) sine wave but the output i get is 50m to -150m.My output is shifted(50mv down). Can anybody tell me the reason.

Your opAmp has an offset voltage of -5mV (see TL08x datasheet; this value is within the spec.); -5mV*10=-50mV output offset.
Use TL081 for simple offset nulling.

Will inverting configuration may solve my problem?

No.

Secondly,when i make it two stage amplifier and replicate that schematics for 10*10=100 gain Proteus gives me error
Matrix is singular.

Just a guess: Try with a shorter time step.