-50

-25

0

25

50

75

100 125

85

90

95

100

105

TEMPERATURE (°C)

VDD=1.8V

VDD=3.3V

VDD=5V

-50

-25

0

25

50

75

100 125

90

95

100

105

110

TEMPERATURE (°C)

-200 -150 -100 -50

0

50 100 150 200

0

3

6

9

12

15

VOSVCM ( V)

UNITS TESTED > 5000

-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

40

TCVOSVCM ( V/°C)

UNITS TESTED > 5000

10

100

1k

10k

100k

60

65

70

75

80

85

90

FREQUENCY (Hz)

10

100

1k

10k

0

10

20

30

40

50

60

70

80

90

FREQUENCY (Hz)

INP=1.65V

11

LMP91200

www.ti.com

SNAS571E – JANUARY 2012 – REVISED FEBRUARY 2016

Product Folder Links: LMP91200

Submit Documentation Feedback

Copyright © 2012–2016, Texas Instruments Incorporated

Typical Characteristics (continued)

Unless otherwise specified, TA= 25°C, VS= (VDD – GND) = 3.3 V, VREF = 3.3 V.

Figure 19. pH Buffer CMRR

vs Frequency

Figure 20. pH Buffer PSRR

vs Frequency

Figure 21. VCM Buffer Input Voltage Offset

Figure 22. VCM Buffer TCVOS

Figure 23. VCM Buffer DC CMRR

vs Temperature

Figure 24. VCM Buffer DC PSRR

vs Temperature