Datasheet

OP177
Figure 26. Precision High Gain Differential Amplifier
Table II. High Gain Differential Amp Performance
Type Amount
Common-Mode Voltage 0.1%/V
Gain Linearity, Worst Case 0.02%
TCV
OS
0.0003%/°C
TCI
OS
0.008%/°C
ISOLATING LARGE CAPACITIVE LOADS
The circuit in Figure 27 reduces maximum slew-rate but allows
driving capacitive loads of any size without instability. Because
the 100 Ω resistor is inside the feedback loop, its effect on
output impedance is reduced to insignificance by the high open-
loop gain of the OP177.
Figure 27. Isolating Capacitive Loads
Figure 28. Bilateral Current Source
Figure 29. Precision Absolute Value Amplifier