AMC7823_15 Datasheet, PDF (18/55 Pages) Texas Instruments – ANALOG MONITORING AND CONTROL CIRCUIT

AMC7823
SLAS453F – APRIL 2005 – REVISED MARCH 2012
TYPICAL CHARACTERISTICS: PRECISION CURRENT SOURCE
At +25°C, AV_DD = DV_DD = 5V, unless otherwise noted.
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100μA CURRENT SOURCE
vs
TEMPERATURE
0.5
0.4
AV_DD / V_REF = 5V / 2.5V
or 3V / 1.25V
0.3
0.2
0.1
0
−0.1
−0.2
−0.3
−0.4
−0.5
−50
−25
0
25
50
Temperature (_ C)
75
100
Figure 34.
0.1
0
−0.1
−0.2
−0.3
−0.4
−0.5
−0.6
−0.7
−0.8
−0.9
−1.0
−1.1
−1.2
4.00
PRECISION_I_OUTPUT
vs
COMPLIANCE VOLTAGE
10µA (nom)
AV_DD = 5V
V_REF = 2.5V
10mA (nom)
1mA (nom)
100µA (nom)
4.25
4.5
4.75
5.0
Compliance Voltage (V)
Figure 35.
0.1
0
−0.1
−0.2
−0.3
−0.4
−0.5
−0.6
−0.7
−0.8
−0.9
−1.0
−1.1
−1.2
1.60
PRECISION_I_OUTPUT
vs
COMPLIANCE VOLTAGE
AV_DD = 2.7V
V_REF = 1.25V
10µA (nom)
10mA (nom)
1mA (nom)
100µA (nom)
1.80
2.00 2.20
2.40
2.60 2.80
Compliance Voltage (V)
Figure 36.
CURRENT SOURCE PRODUCTION DISTRIBUTION
(2.5V EXTERNAL REFERENCE)
70
60
50
40
30
20
10
0
Current (µA)
Figure 37.
18
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