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“Improved” Howland current pump circuit
SBOA436
October 2020
OPA192
CONTENTS
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“Improved” Howland current pump circuit
Design Goals
Design Description
Design Notes
Design Steps
Design Simulations
DC Simulation Results
Design References
Design Featured Op Amp
Design Alternate Op Amp
IMPORTANT NOTICE
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CIRCUIT DESIGN
“Improved” Howland current pump circuit
Design Goals
Input V
in
(V
p
– V
n
)
Output
Supply
V
inMin
V
inMax
I
Min
I
Min
VS+
VS-
V
ref
–5V
5V
–25mA
25mA
15V
–15V
0V
