LMP90077 Datasheet, PDF (17/64 Pages) Texas Instruments – Multi-Channel, Low-Power 16-Bit Sensor AFE with True Continuous Background Calibration

LMP90077, LMP90078, LMP90079, LMP90080
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SNAS521F – JULY 2011 – REVISED MARCH 2013
Typical Performance Characteristics (continued)
Unless otherwise noted, specified limits apply for VA = VIO = VREF = 3.0V. The maximum and minimum values apply for T_A
= T_MIN to T_MAX; the typical values apply for T_A = +25°C.
Offset Error vs.
Temperature without Calibration at Gain = 8
25
Offset Error vs.
Temperature with Calibration at Gain = 8
0.4
20
VA = 5V
15
10
VA = 3V
5
0.2
VA = 3V
0.0
VA = 5V
-0.2
0
-40 -20 0 20 40 60 80 100 120
TEMPERATURE (°C)
Figure 22.
Gain Error vs.
Temperature without Calibration at Gain = 1
160
-0.4
-40 -20 0 20 40 60 80 100 120
TEMPERATURE (°C)
Figure 23.
Gain Error vs.
Temperature with Calibration at Gain = 1
40
150
VA = 5V
140
130
VA = 3V
120
110
-40 -20 0 20 40 60 80 100 120
TEMPERATURE (°C)
Figure 24.
Gain Error vs.
Temperature without Calibration at Gain = 8
-100
-110
-120
-130
VA = 3V
-140
-150
VA = 5V
-160
-40 -20 0 20 40 60 80 100 120
TEMPERATURE (°C)
Figure 26.
20
VA = 5V
0
-20
VA = 3V
-40
-40 -20 0 20 40 60 80 100 120
TEMPERATURE (°C)
Figure 25.
Gain Error vs.
Temperature with Calibration at Gain = 8
-20
-40
VA = 3V
-60
-80
-100
VA = 5V
-120
-40 -20 0 20 40 60 80 100 120
TEMPERATURE (°C)
Figure 27.
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