AD6458 Просмотр технического описания (PDF) - Analog Devices
Номер в каталоге
Компоненты Описание
производитель
AD6458 Datasheet PDF : 12 Pages
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100
90
80
70
= 0.03mV
= 0.4mV
60
50
40
30
20
10
0
–4.9 –3.9 –2.9 –1.9 –0.9 0.1 1.1 2.1 3.1 4.1
VARIATION – mV
Figure 23. Demodulation Output Offset Voltage Variation
Histogram with Variation Referred to Offset at VGAIN = 1.2 V
and TA = +25°C, VGAIN = 2.25 V and TA = +25°C
AD6458
16
14
= 0.9mV
= 3.4mV
12
10
8
6
4
2
0
–10 –8 –6 –4 –2 0 2 4 6
OFFSET DRIFT – mV
8 10
Figure 26. Demodulation Output Offset Voltage Variation
Histogram with Variation Referred to Offset at VGAIN =
1.2 V and TA = +25°C, VGAIN = 0.2 V and TA = –25 °C
80
70
60
50
40
= 0.1mV
30
= 0.6mV
20
10
0
–2.9 –2.4 –1.9 –1.4 –0.9 –0.4 0.1 0.6 1.1 1.6 2.1 2.6 3.1
VARIATION – mV
Figure 24. Demodulation Output Offset Voltage Variation
Histogram with Variation Referred to Offset at VGAIN = 1.2 V
and TA = +25°C, VGAIN = 0.5 V and TA = +25°C C
30
25
= –0.04mV
= 3.6mV
20
15
10
5
0
–10 –8 –6 –4 –2 0 2 4 6 8 10
OFFSET DRIFT – mV
Figure 27. Demodulation Output Offset Voltage Variation
Histogram with Variation Referred to Offset at VGAIN =
1.2 V and TA = +25°C, VGAIN = 0.2 V and TA = +85°C
50
45
40
35
30
25
20
= 0.04mV
= 1.1mV
15
10
5
0
–4.9 –3.9 –2.9 –1.9 –0.9 0.1 1.1 2.1 3.1 4.1 5.1
VARIATION – mV
Figure 25. Demodulation Output Offset Voltage Variation
Histogram with Variation Referred to Offset at VGAIN =
1.2 V and TA = +25°C, VGAIN = 0.2 V and TA = +25°C
18
16
VPOS = 3.6V, TA = +85°C
14
VPOS = 3.0V, TA = +85°C
12
10
VPOS = 3.6V, TA = +25°C
8
VPOS = 3.6V, TA = –40°C
6
0
0.5
1.0
1.5
2.0
2.5
VGAIN – Volts
Figure 28. Power Supply Current vs. Gain Control Volt-
age, VREF = 1.2 V
REV. 0
–9–
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