AD8304 データシートの表示（PDF） - Analog Devices
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AD8304 Datasheet PDF : 21 Pages
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AD8304–Typical Performance Characteristics
(VP = 5 V, VN = 0 V, TA = 25؇C, unless otherwise noted.)
1.6
TA = –40؇C, +25؇C, +85؇C
1.4 VN = –0.5V
1.2
–40؇C
0؇C
1.0
+25؇C
+70؇C
+85؇C
0.8
0.6
0.4
0.2
0
100p 1n
10n 100n 1 10 100 1m 10m
INPUT – A
TPC 1. VLOG vs. IPD
0.510
TA = –40؇C, +25؇C, +85؇C
0.508
0.506
0.504
0.502
–40؇C
+25؇C
+85؇C
0.500
100p 1n
10n 100n 1 10 100 1m 10m
INPUT – A
TPC 4. VSUM vs. IPD
2.0
TA = –40؇C, +25؇C, +85؇C
1.5 VN = –0.5V
1.0
–40؇C
0.5
0؇C
+25؇C
0
–0.5
+85؇C
+70؇C
–1.0
–1.5
–2.0
100p 1n
10n 100n 1 10 100 1m 10m
INPUT – A
TPC 2. Logarithmic Conformance (Linearity) for VLOG
2.8
TA = –40؇C, +25؇C, +85؇C
2.6
2.4
–40؇C
2.2
+25؇C
+85؇C
2.0
1.8
1.6
1.4
1.2
1.0
0.8
0.6
0 1 2 3 4 5 6 7 8 9 10
INPUT – mA
TPC 5. VPDB vs. IPD
2.0
VP = 4.5V, 5.0V, 5.5V
1.5 VN = –0.1V
1.0
0.5
4.5V
0
5.0V
5.5V
–0.5
–1.0
–1.5
–2.0
100p 1n
10n 100n 1 10 100 1m 10m
INPUT – A
TPC 3. Absolute Deviation from Nominal Speci-
fied Value of VLOG for Several Supply Voltages
2.4
1.25
TA = –40؇C, +25؇C, +85؇C
2.2 VP = 3.0V
1.00
2.0
0.75
1.8 –40؇C
0.50
1.6
1.4 +25؇C
+85؇C
1.2
0.25
0
–0.25
1.0
–0.50
0.8
–0.75
0.6
100p 1n
10n 100n 1 10 100 1m
INPUT – A
–1.00
10m
TPC 6. Logarithmic Conformance (Linearity) for a
3 V Single Supply (See Figure 6)
–4–
REV. A
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