LM363 Datasheet, PDF (19/22 Pages) National Semiconductor (TI) – LM363 Precision Instrumentation Amplifier

Typical Applications (Continued)
Precision Barometer
Parallel trim for 28 00 Hge0V
Parallel trim for 32 00 Hge4V out
B L H Electronics DHF-444114
Pressure Transducer
350X input impedance
Outpute1 mV volt excitation psi
Removing Large DC Offsets
TL H 5609 – 30
Optional bandlimiting to reduce noise
Pick R1C1eR2C2eR3C3 10
1
e
2qf_l
f_le0 1 Hz for values shown Integrator nulls out offset error to
LM363 bias currents flowing into R1 and R2
Removing Small DC Offsets
TL H 5609 – 31
Optional bandlimiting to reduce noise
Low frequency break
1
frequency f_le_2qR1C1e0 01 Hz
Accommodates out referred offset of several volts Limit is set by max
differential between reference and sense terminals
19
TL H 5609 – 32