ADA4960-1ACPZ-RL Analog Devices Inc, ADA4960-1ACPZ-RL Datasheet - Page 15

• Manufacturer Part Number: ADA4960-1ACPZ-RL
• Description: 5GHz Low Distortion ADC Driver/Line Driv
• Manufacturer: Analog Devices Inc
• Type: ADC Driverr

Specifications of ADA4960-1ACPZ-RL

• Applications: Data Acquisition
• Mounting Type: Surface Mount
• Package / Case: 16-LFCSP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

GAIN ADJUST
The gain of the ADA4960-1 is set with a single resistor, R
connected across the IIP and IIN pins. Because the output
impedance is 150 Ω, the load affects the gain. The voltage
gain can be calculated for both differential and single-ended
inputs as follows:
where R
Table 5. A
R
A
0
6
12
18
L
V
Figure 34. A
= 1 kΩ
(dB)
A
V
18
16
14
12
10
8
6
4
2
0
L
0
=
and R
R
V
R
246
106
35.2
0
4.7
L
vs. R
L
= 100Ω
V
= 100 Ω
vs. R
⎛
⎜
⎜
⎝
(
G
35.5
150
R
150
are the load and gain-setting resistors.
R
G
L
G
50
L
for R
= 500Ω
for R
= 200Ω
+
R
+
R
L
R
R
L
= 1kΩ
L
= 100 Ω, R
L
G
L
R
370
167
65.7
15.2
⎞
⎟
⎟
⎠
)
= 100 Ω, R
L
100
= 200 Ω
R
G
L
= 200 Ω, R
(Ω)
R
150
L
G
= 200 Ω, R
R
505
237
101
32.8
L
L
= 500 Ω
= 500 Ω, and R
200
L
= 500 Ω, and
R
576
271
118
41.7
L
250
L
= 1 kΩ
= 1 kΩ
G
,
Rev. 0 | Page 15 of 20
BANDWIDTH EXTENSION
The bandwidth of the ADA4960-1 can be extended for both
differential and single-ended input configurations by connecting
a capacitor, C
shown in Figure 35.
Figure 36 shows the bandwidth extension for 6 dB and 12 dB gains.
Figure 37 shows the recommended C
AC
50Ω
14
12
10
14
12
10
8
6
4
2
0
8
6
4
2
0
Figure 36. Bandwidth Extension for 6 dB and 12 dB Gains
10
0
ETC1-1-13
Figure 37. Recommended C
Figure 35. ADA4960-1 with Bandwidth Extension
0.5
S
, in parallel with the gain-setting resistor, R
1.0
25Ω
25Ω
R1
R2
1.5
100
C
FREQUENCY (MHz)
S
0.1µF
0.1µF
2.0
R
C
G
S
2.5
(pF)
S
VIP
VIN
IIP
IIN
Values for Most Gains
S
C
C
values for most gains (dB).
3.0
S
S
ADA4960-1
= 2.2pF
= 0.1pF
5V
1k
3.5
VOP
VON
ADA4960-1
4.0
0.1µF
0.1µF
4.5
10k
5.0
R
R
2
2
G
L
L
, as