Datasheet

AD8042
Rev. E | Page 9 of 16
10 100
CLOSED-LOOP GAIN (dB)
FREQUENCY (MHz)
01059-017
10
8
6
4
2
0
–2
–4
–6
–8
–10
15
00
60
55
50
45
40
35
30
25
20
0.5 2.01.51.0
SETTLING TIME (ns)
INPUT STEP (V)
01059-020
V
S
= 5V
G = +1
C
L
= 5pF
R
L
= 2kΩ TO 2.5V
T = +85°C
T = +25°C
T = –40°C
Figure 17. Closed-Loop Frequency Response vs. Temperature
12
10
8
6
4
2
0
–2
–4
–6
–8
15
00
G = –1
R
L
= 2kΩ TO MIDPOINT
C
L
= 5pF
V
S
= +3V, 0.1%
V
S
= +3V, 1%
V
S
= +5V, 0.1%
V
S
= ±5V, 0.1%
V
S
= +5V, 1%
V
S
= ±5V, 1%
0
–10
–20
–30
–40
–50
–60
–70
–80
–90
10k 500M100k 10M 100M1M
COMMON-MODE REJECTION (dB)
FREQUENCY (Hz)
01059-021
10 100
CLOSED-LOOP GAIN (dB)
FREQUENCY (MHz)
01059-018
G = +1
C
L
= 5pF
R
L
= 2kΩ
V
S
= +3V
R
L
AND C
L
TO 1.5V
V
S
= ±5V
V
S
= +5V
R
L
AND C
L
TO 2.5V
Figure 18. Closed-Loop Frequency Response vs. Supply
100
10
1
0.1
0.01
0.01 5000.1 10 1001
OUTPUT RESISTANCE (Ω)
FREQUENCY (MHz)
01059-019
V
S
= 5V
G = +1
R
BT
= 50Ω
R
BT
= 0Ω
R
BT
V
OUT
Figure 19. Output Resistance vs. Frequency
Figure 20. Settling Time vs. Input Voltage
TEST CIRCUIT:
V
S
= 5V
OUT
IN
CM
1.02kΩ
1.02kΩ
1.02kΩ
1.02kΩ
Figure 21. Common-Mode Rejection vs. Frequency
0.8
0.7
0.6
0.5
0.4
0.3
0.2
0.1
0
0 5 10 15 20 25 30 35 40 45 50
OUTPUT SATURATION VOLTAGE (V)
LOAD CURRENT (mA)
01059-022
V
S
= 5V
5V – V
OH
(+125°C)
5V – V
OH
(+25°C)
5V – V
OH
(–55°C)
+V
OL
(+125°C)
+V
OL
(+25°C)
+V
OL
(–55°C)
Figure 22. Output Saturation Voltage vs. Load Current