Electronics
Semiconductor Division
Features
Unity gain stable
70 MHz -3 dB Bandwidth
20 MHz
0.1 dB gain flatness
0.06% differential gain (R
L
= 150
)
0.06
differential phase (R
L
= 150
)
High CMRR (100dB), High PSRR (80 dB)
Dual
5V power supply
Low offset 1.0 mV
8-pin narrow SO package
160 V/
s slew rate
Fast settling time: 0.1% in 35 ns
Applications
Video amplifier
Video instrumentation amplifier
Active filter
Description
The RC6302 consists of two low power, wide band voltage
feedback operational amplifiers. Each channel is capable of
delivering a load current of at least 35mA. The amplifiers are
optimized for video applications where low differential gain
and low phase distortion are significant requirements.
Block Diagram
V
CC
OUT2
IN2
IN2+
OUT1
65-7481
IN1
V
EE
IN1+
RC6302
RC6302
Dual Video Amplifier
Rev. 1.0.0
This document was created with FrameMaker 4 0 4
PRODUCT SPECIFICATION
RC6302
2
Pin Assignments
OUT1
IN1
IN1+
V
EE
V
CC
OUT2
IN2
IN2+
8
65-3402-01
7
6
5
1
2
3
4
Pin Definitions
Pin
Name
Pin
Number
Pin Function Description
IN1
2
Amplifier 1 inverting input
IN1+
3
Amplifier 1 non-inverting input
IN2
6
Amplifier 2 inverting input
IN2+
5
Amplifier 2 non-inverting input
OUT1
1
Amplifier 1 output
OUT2
7
Amplifier 2 output
V
EE
4
Negative supply voltage
V
CC
8
Positive supply voltage
Absolute Maximum Ratings
(beyond which the device may be damaged)1
Note:
1. Functional operation under any of these conditions is NOT implied. Performance and reliability are guaranteed only if
Operating Conditions are not exceeded.
Operating Conditions
Parameter
Min
Typ
Max
Units
Positive power supply, V
CC
7
V
Negative power supply, V
EE
-7
V
Differential input voltage
0
V
Operating Temperature
0
+70
C
Storage Temperature
-40
+125
C
Junction Temperature
150
C
Lead Soldering Temperature (10 seconds)
300
C
Operating Temperature
0
+70
C
Short circuit tolerance: No more than one output can be shorted to ground.
Parameter
Min
Typ
Max
Units
V
CC
Power Supply Voltage
4.75
5.0
5.25
V
V
EE
Negative Supply Voltage
-4.75
-5.0
-5.25
V
JA
SO8 Thermal Resistance
140
C/W
RC6302
PRODUCT SPECIFICATION
1-3
DC Electrical Characteristics
V
CC
= 5V, V
EE
= -5V, A
V
= 2, T
A
= 0
C to 70
C, R
LOAD
= 150
, unless otherwise specified.
Note:
1. Guaranteed by design.
Parameter
Conditions
Min
Typ
Max
Units
V
OS
Input Offset Voltage
No load
1.0
5
mV
V
OS
/
T
Offset Voltage Drift
1
6.0
50
V/
C
I
B
Input Bias Current
1.0
5
A
I
B
/
T
Input Bias Current Drift
1
8.0
50
nA/
C
R
IN
Input Resistance
1
1
M
C
IN
Input Capacitance
1
0.5
2
pF
CMIR
Common Mode Input Range
2.5
V
CMRR
Common Mode Rejection Ratio
No Load
70
100
dB
PSRR
Power Supply Rejection Ratio
No Load
60
80
dB
Is
Quiescent Supply Current
No Load, Whole IC
15
25
mA
R
OUT
Output Impedance
1
At DC
0.2
I
OUT
Output Current
35
mA
V
OUT
Output Voltage Swing
No Load
2.5
3.0
V
RL=150
2.5
3.0
V
A
VOL
Open-loop Gain
58
68
dB
PRODUCT SPECIFICATION
RC6302
4
AC Electrical Characteristics
V
CC
= 5V, V
EE
= -5V, R
LOAD
= 150
, R
G
= R
F
= 250
, A
V
= 2, T
A
= 0 to 70
C, C
L
= 10 pF, C
F
= 3 pF unless
otherwise specified. Closed Loop. See Typical Test Circuit.
Note:
1. Guaranteed by design.
Parameter
Conditions
Min
Typ
Max
Units
Frequency Response
BW
-3 dB Bandwidth (A
V
= 2)
1
V
OUT
= 0.4 Vpp
70
MHz
V
OUT
= 0.8 Vpp
55
MHz
Flat
0.1 dB Bandwidth
1
15
20
MHz
Peak
Maximum Small Signal AC
Peaking
0.3
DB
X
TALK
Crosstalk Isolation
1
@ 5 MHz
60
dB
Time Domain Response
t
r1
, t
f1
Rise and Fall Time 10% to
90%
1
2V Output Step
6
8
ns
t
s
Settling Time to 0.1 %
1
2V Output Step
35
ns
OS
Overshoot
1
2V Output Step
13
%
US
Undershoot
1
2V Output Step
4
%
SR
Slew Rate
1
V
OUT
=
2.0V
160
V/
s
Distortion
HD
2
2nd Harmonic Dist. @ 20 MHz
1
V
OUT
= 0.8 Vpp
-50
dB
HD
3
3nd Harmonic Dist. @ 20 MHz
1
V
OUT
= 0.8 Vpp
-50
dB
Equivalent Input Noise
NF
Noise Floor > 100 KHz
1
-140
dBm
SND
Spectral Noise Density
1
100 kHz to 200 MHz
10
nV/
Hz
Video Performance
DG
Diff. Gain (p-p), NTSC & PAL
1
R
L
= 150
, V
OUT
=
1.5V
0.06
%
DP
Diff. Phase (p-p), NTSC & PAL
1
R
L
= 150
, V
OUT
=
1.5V
0.06
Deg.
RC6302
PRODUCT SPECIFICATION
5
Applications Discussion
Capacitive Load
The RC6302 can drive a capacitive load from 10 to over 100
pF. In back terminated video applications, bandwidth will
only be limited by the RC time constants of the external out-
put components. A minimum 10 pF capacitive load is
required. When driving a 75
cable, place the 75
source
termination resistor as close to the amplifier output as
possible.
DC Accuracy
Since the RC6302 is a voltage-feedback amplifier, the invert-
ing and non-inverting inputs have similar impedances and
bias currents. To minimize offset voltage, match the source
resistances seen by inverting and non-inverting inputs.
Feedback Components
Because the RC6302 is a voltage-feedback amplifier, it facil-
itates using reactive (capacitive and inductive) feedback
components for implementing filters, integrators, sample/
hold circuits, etc. The feedback network and the parasitic
capacitance at the inverting (summing junction) input create
a pole and affect the transfer function of the circuit. For sta-
ble operation, minimize the parasitic capacitance and equiva-
lent resistance of the components used in the feedback
circuit.
Circuit Board
High-frequency applications require good grounding, power
supply decoupling, low parasitic capacitance and inductance,
and good isolation between the three inputs to minimize their
crosstalk. Minimal coupling from output to input should
exist to prevent positive feedback.
Typical Test Circuit
65-7482A
1/2
RC6302
10 pF
C
L
75
R
L
75
Video
Output
R
F
250
250
Video
Input
R
I
R
S
R
LOAD
= R
L
+ R
S
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