AD830JR-REEL7 Analog Devices Inc, AD830JR-REEL7 Datasheet - Page 17

• Manufacturer Part Number: AD830JR-REEL7
• Description: IC VIDEO DIFF AMP HS 8-SOIC T/R
• Manufacturer: Analog Devices Inc

Specifications of AD830JR-REEL7

• Rohs Status: RoHS non-compliant
• Applications: Differential
• Number Of Circuits: 1
• -3db Bandwidth: 85MHz
• Slew Rate: 360 V/µs
• Current - Supply: 14.5mA
• Current - Output / Channel: 50mA
• Voltage - Supply, Single/dual (±): 8 V ~ 33 V, ±4 V ~ 16.5 V
• Mounting Type: Surface Mount
• Package / Case: 8-SOIC (0.154", 3.90mm Width)
• Single Supply Voltage (typ): Not RequiredV
• Single Supply Voltage (min): Not RequiredV
• Single Supply Voltage (max): Not RequiredV
• Mounting: Surface Mount
• Pin Count: 8
• Lead Free Status / RoHS Status: Not Compliant

V
IN
0.10
0.09
0.08
0.07
0.06
0.05
0.04
0.03
0.02
0.01
Figure 45. Differential Gain and Phase for the Circuit of Figure 44
5
6
1
2
3
4
Figure 44. Full Bandwidth Line Driver (G = +2)
GAIN
7
G
G
M
M
PHASE
8
SUPPLY VOLTAGE (±V)
Z
9
CM
SIGNAL
C
AD830
INPUT
A = 1
10
11
10kΩ
10kΩ
R
T
10µF
10µF
8
7
6
5
10kΩ
+V
1
V
V
2
S
P
0.1µF
GAIN = +2
R
FREQ = 3.58MHz
0 TO 0.7V
N
0.1µF
L
V
= 150Ω
*OPTIONAL TUNING FOR IMPROVING
1
10kΩ
2kΩ*
OUT
VERY LOW FREQUENCY CMR.
3
75Ω
1
4
1
1
2
3
4
Figure 47. AC-Coupled Line Receiver
5
0.20
0.18
0.16
0.14
0.12
0.10
0.08
0.06
0.04
0.02
75Ω
G
G
Rev. C | Page 17 of 20
M
M
C
AD830
A = 1
AC-COUPLED LINE RECEIVER
The AD830 is configurable as an ac-coupled differential
amplifier on a single- or bipolar-supply voltage. All that is
needed is inclusion of a few noncritical passive components, as
illustrated in Figure 47. A simple resistive network at the X G
input establishes a common-mode bias. Here, the common
mode is centered at 6 V, but in principle can be any voltage
within the common-mode limits of the AD830. The 10 kΩ
resistors to each input bias the X G
impedance to keep the input coupling corner frequency low, but
not too large so that residual bias current induced offset voltage
becomes troublesome. For dual-supply operation, the 10 kΩ
resistors may go directly to ground. The output common is
conveniently set by a Zener diode for a low impedance
reference to preserve the high frequency CMR. However, a
simple resistive divider works fine, and good high frequency
CMR can be maintained by placing a compensating resistor in
series with the +Y input. The excellent CMRR response of the
circuit is shown in Figure 48. A plot of the 0.1 dB flatness from
10 Hz is also shown. With the use of 10 μF capacitors, the CMR
is >90 dB down to a few tens of hertz. This level of performance
is almost impossible to achieve with discrete solutions.
–0.1
–0.2
–0.3
–0.4
–0.5
–0.6
–0.7
–0.8
0.2
0.1
8
7
6
5
1N4736
0
+12V
10k
Figure 46. 0.1 dB Gain Flatness for the Circuit of Figure 44
0.1µF
GAIN = +2
R
1000µF
L
+12V
= 150Ω
4.7kΩ
6.8V
V
OUT
100k
75Ω
FREQUENCY (Hz)
CABLE
COAX
75Ω
1M
75Ω
M
V
stage with sufficiently high
S
= ±10V
V
S
= ±5V
10M
V
S
= ±15V
AD830
100M
M