AD8170/AD8174
–10
G = +2
R
F
= 499
R
F
= 549
R
L
= 100
(AD8170R)
(AD8174R)
–20
–30
–40
V
IN
= +0.707V rms
G = +2
R
F
= 499Ω (AD8170R)
R
F
= 549Ω (AD8174R)
R
L
= 100Ω
CROSSTALK – dB
–50
AD8170R
–60
–70
–80
–90
AD8174R
20mV/DIV
–100
20ns/DIV
–110
0.1
1M
10M
FREQUENCY – Hz
100M
1G
Figure 10. Small Signal Pulse Response
Figure 13. All-Hostile Crosstalk vs. Frequency
–20
V
OUT
= 4V p-p
G = +2
R
F
= 499
(AD8170R)
R
F
= 549
(AD8174R)
R
L
= 100
–30
–40
–50
ISOLATION – dB
V
IN
= +0.354V rms
G = +2
R
F
= 549Ω
R
L
= 100Ω
800mV/DIV
–60
–70
–80
–90
DISABLE ISOLATION
ENABLE
= LOGIC 1
SD = LOGIC 0
SD = LOGIC 1
ENABLE
= LOGIC 0
–100
–110
10ns/DIV
–120
0.03
SHUTDOWN ISOLATION
0.1
1
10
FREQUENCY – MHz
100
500
Figure 11. Large Signal Transient Response
Figure 14. AD8174R Disable and Shutdown Isolation
vs. Frequency
VOLTAGE NOISE – nV/
√
Hz
1
2
3
4
5
DIFF PHASE – Degrees
6
IRE
7
8
9
10
11
0.05
0.04
0.03
0.02
0.01
0.00
–0.01
–0.02
–0.03
10
V
NOISE
INVERTING INPUT I
10
SWITCHING INPUT I
1
2
3
4
5
6
IRE
7
8
9
10
11
1
10
100
1k
10k
FREQUENCY – Hz
100k
1
1M
Figure 12. Differential Gain and Phase Error
Figure 15. Noise vs. Frequency
–6–
REV. 0
CURRENT NOISE – pA/
√
Hz
0.04
0.03
0.02
0.01
0.00
–0.01
–0.02
–0.03
–0.04
100
100
DIFF GAIN – %
G = +2
R
L
= 150Ω
R
F
= 499Ω (AD8170R)
R
F
= 549Ω (AD8174R)
AD [ ANALOG DEVICES ]
