Datasheet

AD8170/AD8174
–6–
REV. 0
20ns/DIV
20mV/DIV
G = +2
R
F
= 499V (AD8170R)
R
F
= 549V (AD8174R)
R
L
= 100V
Figure 10. Small Signal Pulse Response
10ns/DIV
800mV/DIV
V
OUT
= 4V p-p
G = +2
R
F
= 499V
(AD8170R)
R
F
= 549V
(AD8174R)
R
L
= 100V
Figure 11. Large Signal Transient Response
1234567891011
IRE
1234567891011
IRE
0.04
0.03
0.02
0.01
0.00
–0.01
–0.02
–0.03
–0.04
0.04
0.03
0.02
0.01
0.00
–0.01
–0.02
–0.03
0.05
DIFF GAIN – %
DIFF PHASE – Degrees
R
L
= 150Ω
R
F
= 499Ω (AD8170R)
R
F
= 549Ω (AD8174R)
G = +2
Figure 12. Differential Gain and Phase Error
FREQUENCY – Hz
–20
–30
–10
0.1 1G1M 10M 100M
–60
–90
–100
–110
–40
–50
–80
–70
CROSSTALK – dB
V
IN
= +0.707V rms
G = +2
R
F
= 499Ω (AD8170R)
R
F
= 549Ω (AD8174R)
R
L
= 100Ω
AD8170R
AD8174R
Figure 13. All-Hostile Crosstalk vs. Frequency
FREQUENCY – MHz
–20
–30
–120
0.1
5001 10 100
–60
–90
–100
–110
–40
–50
–80
–70
ISOLATION – dB
V
IN
= +0.354V rms
G = +2
R
F
= 549Ω
R
L
= 100Ω
ENABLE = LOGIC 1
SD = LOGIC 0
SHUTDOWN ISOLATION
0.03
DISABLE ISOLATION
SD = LOGIC 1
ENABLE = LOGIC 0
Figure 14. AD8174R Disable and Shutdown Isolation
vs. Frequency
FREQUENCY – Hz
100
10
1
10 1M100
VOLTAGE NOISE – nV/
√
Hz
1k 10k 100k
100
10
1
CURRENT NOISE – pA/
√
Hz
V
NOISE
INVERTING INPUT I
SWITCHING INPUT I
Figure 15. Noise vs. Frequency