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| LMP8640MK-T Datasheet, PDF (8/22 Pages) Texas Instruments – Precision High Voltage Current Sense Amplifier | |||
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LMP8640
LMP8640HV
SNOSB28F â AUGUST 2010 â REVISED APRIL 2013
www.ti.com
Typical Performance Characteristics
Unless otherwise specified: TA = 25°C, VS=V+-V-, VSENSE= +IN - (-IN), RL = 10 Mâ¦.
Supply Curent vs. Supply Voltage
2500
2400
2300
2200
2100
2000
1900
800
-40°C
25°C 125°C
700
600
500
400
300
2.7
5.3
8.0
10.6
13.2
2300
2100
Supply Current vs. VCM
VS = 2.7V
1900
1700
1500
1300
125°C
1100
900
25°C
-40°C
700
500
300
-2 -1 0 1 2 3 4 16 28 40 52 64 76
VS (V)
Figure 2.
VCM (V)
Figure 3.
2300
2100
1900
Supply Current vs. VCM
VS = 5V
1700
1500
1300
125°C
1100
900
25°C
-40°C
700
500
300
-2 -1 0 1 2 3 4 16 28 40 52 64 76
VCM (V)
Figure 4.
2500
2300
2100
Supply Current vs. VCM
VS = 12V
1900
1700
1500
125 °C
1300
1100
900
25°C
-40°C
700
500
-2 -1 0 1 2 3 4 16 28 40 52 64 76
VCM (V)
Figure 5.
CMRR vs. VCM (Gain 20V/V)
140
CMRR vs. VCM (Gain 50V/V)
140
130
130
120
25°C
125 °C
110
-40°C
120
-40°C
25°C
125°C
110
100
100
90
VS = 5V
80
-2 11 24 37 50 63 76
VCM (V)
Figure 6.
90
VS = 5V
80
-2 11 24 37 50 63 76
VCM (V)
Figure 7.
8
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