Using Bourns Op Amp Trimpot®
RA RB
Using Standard Potentiometer
+VS
+VS
V
V
IN
IN
RA
RB
100µA
100µA
VOUT
VOUT
Op Amp
Op Amp
51Ω
51Ω
To(1)
Other
Amps
To
Other
Amps
100Ω(1)
2kΩ Linear
Bourns Trimpo®t
100µA
100µA
VOUT = VIN (–RB /RA )
Offset Adjustment Range = ±5mV
VOUT = –VIN(RB /RA)
Offset Adjustment Range = ±5mV
–VS
–VS
NOTE: (1) For N Op Amps, use Potentiometer Resistance = N • 100Ω.
FIGURE 9. Op Amp Offset Adjustment Circuits.
®
8
REF200