ADM3251E(Rev0) 데이터 시트보기 (PDF) - Analog Devices
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ADM3251E Datasheet PDF : 16 Pages
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TYPICAL PERFORMANCE CHARACTERISTICS
12
Tx HIGH (VCC = 5V)
8
Tx HIGH (VISO = 3.3V)
4
0
–4
Tx LOW (VISO = 3.3V)
–8
–12
0
Tx LOW (VCC = 5V)
200
400
600
800
LOAD CAPACITANCE (pF)
1000
Figure 3. Transmitter Output Voltage High/Low vs. Load
Capacitance @ 460 kbps
12
10
Tx OUTPUT HIGH
8
6
4
2
0
–2
–4
–6
–8
Tx OUTPUT LOW
–10
4.5
4.7
4.9
5.1
5.3
5.5
VCC (V)
Figure 4. Transmitter Output Voltage High/Low vs. VCC, RL = 3 kΩ
12
10
Tx OUTPUT HIGH
8
6
4
2
0
–2
–4
–6
Tx OUTPUT LOW
–8
–10
–12
3.0
3.5
4.0
4.5
5.0
5.5
VISO (V)
Figure 5. Transmitter Output Voltage High/Low vs. VISO, RL = 3 kΩ
ADM3251E
12
10
Tx OUTPUT HIGH (VCC = 5V)
8
6
4
Tx OUTPUT HIGH (VISO = 3.3V)
2
0
–2
–4
Tx OUTPUT LOW (VISO = 3.3V)
–6
–8
–10
Tx OUTPUT LOW (VCC = 5V)
–12
0
1
2
3
4
LOAD CURRENT (mA)
Figure 6. Transmitter Output Voltage High/Low vs. Load Current
15
V+ (VCC = 5V)
10
5
V+ (VISO = 3.3V)
0
–5
V– (VISO = 3.3V)
–10
V– (VCC = 5V)
–15
0
1
2
3
4
LOAD CURRENT (mA)
Figure 7. Charge Pump V+, V− vs. Load Current
400
V–
350
300
250
V+
200
150
100
50
0
4.50
4.75
5.00
5.25
5.50
VCC (V)
Figure 8. Charge Pump Impedance vs. VCC
Rev. 0 | Page 9 of 16
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