CLC5622IM National Semiconductor, CLC5622IM Datasheet - Page 12

• Manufacturer Part Number: CLC5622IM
• Description: IC AMP VIDEO DUAL 8-SOIC
• Manufacturer: National Semiconductor

Specifications of CLC5622IM

• Applications: Current Feedback
• Number Of Circuits: 2
• -3db Bandwidth: 160MHz
• Slew Rate: 370 V/µs
• Current - Supply: 3.2mA
• Current - Output / Channel: 130mA
• Mounting Type: Surface Mount
• Package / Case: 8-SOIC (0.154", 3.90mm Width)
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Other names: *CLC5622IM

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Application Division
CLC5622 Operation
The CLC5622 is a current feedback amplifier fabricated in an
advanced complementary bipolar process. The CLC5622
operates from a single 5V supply or dual
Operating from a single supply, the CLC5622 has the follow-
ing features:
The CLC5622 performance is further enhanced in
ply applications as indicated in the
teristics table and
Current Feedback Amplifiers
Some of the key features of current feedback technology
are:
Current feedback operation can be described using a simple
equation. The voltage gain for a non-inverting or inverting
current feedback amplifier is approximated by Equation 1.
where:
±
• Provides 100mA of output current while consuming
• Offers low −80/−83dB 2nd and 3rd harmonic distortion
• Provides BW
• Independence of AC bandwidth and voltage gain
• Inherently stable at unity gain
• Adjustable frequency response with feedback resistor
• High slew rate
• Fast Settling
•
•
•
•
5V Typical Performance
15mW of power
V
A
Z(
R
O
V
f
-20
-30
-40
-50
-60
-70
-80
-90
j(ω)
= V
is the feedback resistor
is the closed loop DC voltage gain
) is the CLC5622’s open loop transimpedance gain
PP
is the loop gain
V
o
= 1V
>
Input Referred Crosstalk
80MHz and 1MHz distortion
1M
±
pp
V
V
5V Typical Performance plots.
in
o
=
Frequency (Hz)
1
+
A
Z(j )
R
v
10M
±
ω
f
5V Electrical Charac-
(A
V
±
5V supplies.
= +2, R
<
−75dBc at
±
100M
5V sup-
01500235
f
= 750Ω, R
12
L
The denominator of Equation 1 is approximately equal to 1 at
low frequencies. Near the −3dB corner frequency, the inter-
action between R
mance. The value of the feedback resistor has a large affect
on the circuits performance. Increasing R
affects:
• Decreases loop gain
• Decreases bandwidth
• Reduces gain peaking
• Lowers pulse response overshoot
• Affects frequency response phase linearity
Refer to the Feedback Resistor Selection section for more
details on selecting a feedback resistor value.
CLC5622 Design Information
Single Supply Operation (V
The specifications given in the +5V Electrical Characteristics
table for single supply operation are measured with a com-
mon mode voltage (V
which the inputs are applied and the output voltages are
specified.
Operating from a single +5V supply, the Common Mode
Input Range (CMIR) of the CLC5622 is typically +0.8V to
+4.2V. The typical output range with R
+4.0V.
For single supply DC coupled operation, keep input signal
levels above 0.8V DC. For input signals that drop below 0.8V
DC, AC coupling and level shifting the signal are recom-
mended. The non-inverting and inverting configurations for
both input conditions are illustrated in the following 2 sec-
tions.
DC Coupled Single Supply Operation
Figure 1 and Figure 2 show the recommended non-inverting
and inverting configurations for input signals that remain
above 0.8V DC. Note: R
minimum power consumption and maximum output swing.
= 100Ω, V
CC
=
±
f
5V, unless specified) (Continued)
and Z(
Pulse Crosstalk
cm
) of 2.5V. V
f
, R
j(ω)
) dominates the circuit perfor-
CC
L
, and R
= +5V, V
cm
g
is the voltage around
L
are tied to V
=100Ω is +1.0V to
EE
f
has the following
= GND)
cm
01500236
for