Datasheet

Data Sheet ADA4937-1/ADA4937-2
Rev. D | Page 15 of 28
0
–1.0 –0.5 0 0.5 1.0 1.5 2.0 2.5
1
2
3
4
5
6
7
8
9
10
AMPLITUDE (V)
TIME (ms)
06591-043
OUTPUT
POWER-DOWN PULSE
Figure 43.
PD
Response vs. Time
06591-044
FREQUENCY (MHz)
CROSSTALK (dB)
–140
–120
–130
–110
–100
–90
–80
–70
–40
–50
–60
10.3 10 100 1000
INPUT2, OUTPUT1
INPUT1, OUTPUT2
Figure 44. Crosstalk vs. Frequency for ADA4937-2
100
1
10
10 10M1M100k10k1k100
INPUT VOLTAGE NOISE (nV/ Hz)
FREQUENCY (Hz)
06591-045
Figure 45. Voltage Spectral Noise Density, RTI
10
0.1
1
0.01 1k1001010.1
IMPEDANCE (Ω)
FREQUENCY (MHz)
06591-146
G = 1
Figure 46. Closed-Loop Output Impedance
2
1
–2
1.0
–1.0
–0.5
V
IN
0
0.5
0.1
–0.1
–1
0
V
IN
(V)
SETTLING ERROR (%)
TIME (1ns/DIV)
06591-147
SETTLING ERROR
Figure 47. 0.1% Settling Time
70
–20
50
–300
–250
–200
–150
–100
–50
0
–10
0
10
20
30
40
50
60
1 10G1G100M10M1M100k10k1k10010
OPEN-LOOP GAIN (dB)
OPEN-LOOP PHASE (Degrees)
FREQUENCY (Hz)
06591-401
PHASE
GAIN
Figure 48. Open-Loop Gain and Phase vs. Frequency