LMP8640_14 Datasheet, PDF (11/32 Pages) Texas Instruments – Precision High Voltage Current Sense Amplifiers

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LMP8640, LMP8640-Q1, LMP8640HV
SNOSB28G – AUGUST 2010 – REVISED NOVEMBER 2014
Typical Characteristics (continued)
Unless otherwise specified: T_A = 25°C, V_S=V⁺-V^-, V_SENSE= +IN - (-IN), R_L = 10 MΩ.
140
200
-40°C
150
130
100
120
25°C
125°C
50
110
0
100
90
V_S = 5V
80
-2 11 24 37 50 63 76
-50
-100
-150
-200
-2
VCM (V)
125 °C
25°C
-40°C
11 24 37 50
V_CM (V)
VS = 5V
63 76
Figure 7. CMRR vs. V_CM (Gain 100 V/V)
100
0
-100
-200 ^-40°C
-300
125°C
-400
25°C
-500
-600
-700
-800
V_S = 2.7V
-900
-2 -1 0 1 2 3 4 16 28 40 52 64 76
VCM (V)
Figure 8. Input Voltage Offset vs. V_CM
100
0
-100 ^-40°C
-200
125 °C
-300
-400
25°C
-500
-600
-700
-800
V_S = 5V
-900
-2 -1 0 1 2 3 4 16 28 40 52 64 76
VCM (V)
Figure 9. Ibias vs. V_CM
100
0
-100
-40°C
-200
-300
125°C
-400
25°C
-500
-600
-700
-800
V_S = 12V
-900
-2 -1 0 1 2 3 4 16 28 40 52 64 76
VCM (V)
Figure 10. Ibias vs. V_CM
50
GAIN 100V/V
VS=5V, VCM=5V
40
30
GAIN 50V/V
20
GAIN 20V/V
10
100
1k
10k 100k 1M 10M
FREQUENCY (Hz)
Figure 11. Ibias vs. V_CM
Figure 12. Gain vs. Frequency
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