Datasheet

-200 -150 -100 -50 0 50 100 150 200
0
3
6
9
12
15
PERCENTAGE (%)
V
OS
VCM(V)
UNITS TESTED >5000
VCMHI=1/8VREF
-200 -150 -100 -50 0 50 100 150 200
0
3
6
9
12
15
18
PERCENTAGE (%)
V
OS
VCM(V)
UNITS TESTED >5000
VCMHI=7/8VREF
10 100 1k 10k 100k
60
65
70
75
80
85
90
CMRR (dB)
FREQUENCY (Hz)
10 100 1k 10k
0
10
20
30
40
50
60
70
80
90
PSRR (dB)
FREQUENCY (Hz)
INP=1.65V
0.00 0.12 0.24 0.36 0.48 0.60
80
90
100
110
120
CMRR (dB)
INP (V)
VDD=VREF=5V
4.4 4.5 4.6 4.7 4.8 4.9 5.0
60
70
80
90
100
110
120
CMRR (dB)
INP (V)
VDD=VREF=5V
LMP91200
SNAS571C –JANUARY 2012–REVISED MARCH 2013 www.ti.com
Typical Performance Characteristics (continued)
Unless otherwise specified, T
A
=25°C, V
S
=(VDD-GND)=3.3V, VREF=3.3V.
pH Buffer CMRR pH Buffer CMRR
vs. V
INP
- lower rail vs. V
INP
- upper rail
Figure 22. Figure 23.
pH Buffer CMRR pH Buffer PSRR
vs. Frequency vs. Frequency
Figure 24. Figure 25.
VCM Buffer Input Voltage Offset VCM Buffer Input Voltage Offset
Figure 26. Figure 27.
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