-275-220-165-110 -55 0

55 110 165 220 275

0

3

6

9

12

15

VOSPGA( V)

UNITS TESTED >5000

+IN_PGA=500mV

-2.5 -2.0 -1.5 -1.0 -0.5 0.0 0.5 1.0 1.5 2.0 2.5

0

3

6

9

12

15

18

21

24

27

30

TCVOSPGA( V/°C)

UNITS TESTED >5000

+IN_PGA=500mV

-50

-25

0

25

50

75

100 125

-0.10

-0.05

0.00

0.05

0.10

0.15

0.20

0.25

0.30

TEMPERATURE (°C)

VCMHI=1/2VREF

1.8 2.2 2.6 3.0 3.4 3.8 4.2 4.6 5.0

-0.10

-0.05

0.00

0.05

0.10

0.15

0.20

0.25

0.30

SUPPLY VOLTAGE (V)

VCMHI=1/2VREF

TIME (1s/DIV)

10

100

1k

10k

10

20

30

40

50

60

70

80

90

FREQUENCY (Hz)

VCMHI=1.65V

12

LMP91200

SNAS571E – JANUARY 2012 – REVISED FEBRUARY 2016

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Product Folder Links: LMP91200

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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 25. VCM Buffer Time Domain Voltage Noise

Figure 26. VCM Buffer PSRR

vs Frequency

Figure 27. VCMHI Error

vs Temp

Figure 28. VCMHI Error

vs Supply Voltage

Figure 29. PGA Input Voltage Offset

Figure 30. PGA TCVOS