lmc6064ep National Semiconductor Corporation, lmc6064ep Datasheet - Page 12

• Manufacturer Part Number: lmc6064ep
• Description: Precision Cmos Quad Micropower Operational Amplifier
• Manufacturer: National Semiconductor Corporation

www.national.com
(Input pins are lifted out of PC board and soldered directly to components. All other pins connected to PC board).
Typical Single-Supply
Applications
(V
The extremely high input impedance, and low power con-
sumption, of the LMC6064EP make it ideal for applications
that require battery-powered instrumentation amplifiers. Ex-
amples of these types of applications are hand-held pH
probes, analytic medical instruments, magnetic field detec-
tors, gas detectors, and silicon based pressure transducers.
If R
A
V
+
1
≈
= 5.0 V
= R
100 for circuit shown (R
5
, R
3
DC
= R
)
6
, and R
4
= R
2
7
; then
= 9.822k).
201144 Version 2 Revision 3
FIGURE 7. Instrumentation Amplifier
FIGURE 6. Air Wiring
Print Date/Time: 2011/08/30 23:14:26
12
Figure 7
differential and common mode input resistance (>10
0.01% gain accuracy at A
kΩ imbalance in bridge source resistance. Input current is
less than 100 fA and offset drift is less than 2.5 μV/°C. R
provides a simple means of adjusting gain over a wide range
without degrading CMRR. R
mize CMRR without using super precision matched resistors.
For good CMRR over temperature, low drift resistors should
be used.
shows an instrumentation amplifier that features high
20114411
20114412
V
7
= 100, excellent CMRR with 1
is an initial trim used to maxi-
14
Ω),
2