Datasheet

-2.5-2.0-1.5-1.0-0.5 0.0 0.5 1.0 1.5 2.0 2.5
0
5
10
15
20
25
30
35
PERCENTAGE (%)
TCV
OS
PH(V/°C)
UNITS TESTED >5000
INP=1/8VREF
UNITS TESTED >5000
INP=1/8VREF
-2.5-2.0-1.5-1.0-0.5 0.0 0.5 1.0 1.5 2.0 2.5
0
5
10
15
20
25
30
35
PERCENTAGE (%)
TCV
OS
PH(V/°C)
UNITS TESTED >5000
INP=1/8VREF
UNITS TESTED >5000
INP=7/8VREF
-200 -150 -100 -50 0 50 100 150 200
0
3
6
9
12
15
18
PERCENTAGE (%)
V
OS
PH(V)
UNITS TESTED >5000
INP=1/8VREF
-200 -150 -100 -50 0 50 100 150 200
0
3
6
9
12
15
18
PERCENTAGE (%)
V
OS
PH(V)
UNITS TESTED >5000
INP=7/8VREF
25 45 65 85 105 125
-500
-400
-300
-200
-100
0
100
200
300
400
500
INPUT BIAS (fA)
TEMPERATURE (°C)
INP=1.65V
Average
Average -31
Average +31
25 50 75 100 125
-5
-4
-3
-2
-1
0
1
2
3
4
5
INPUT BIAS (pA)
TEMPERATURE (°C)
INP-VCM = -100mV
INP-VCM = 100mV
Average
Average -31
Average +31
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 Input Bias Current pH Buffer Input Bias Current
vs. Temp - Device ON vs. Temp - Device OFF
Figure 10. Figure 11.
pH Buffer Input Voltage Offset pH Buffer Input Voltage Offset
Figure 12. Figure 13.
pH Buffer TcVos pH Buffer TcVos
Figure 14. Figure 15.
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