CLC412AJE National Semiconductor, CLC412AJE Datasheet - Page 14

• Manufacturer Part Number: CLC412AJE
• Description: IC OP AMP VIDEO DUAL 8-SOIC
• Manufacturer: National Semiconductor

Specifications of CLC412AJE

• Applications: Current Feedback
• Number Of Circuits: 2
• -3db Bandwidth: 250MHz
• Slew Rate: 1300 V/µs
• Current - Supply: 10.2mA
• Current - Output / Channel: 70mA
• 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: *CLC412AJE

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High Speed Instrumentation Amplifier
For applications requiring higher CMRR the composite cir-
cuit of Figure 7 uses the two amplifiers of the CLC412 to
create balanced inputs for the CLC420 voltage-feedback op
amp. The DC CMRR can be fine tuned through the adjust-
ment of R
can be achieved through the placement of an RC network
between the outputs (A and B) of the two amplifiers of the
CLC412.
Non-Inverting Current-Feedback Integrator
The circuit of Figure 8 achieves its high speed integration by
placing one of the CLC412’s amplifiers in the feedback loop
of the second amplifier configured as shown.
b
. Further improvement of CMRR over frequency
FIGURE 6.
FIGURE 7.
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Low Noise Wide-Bandwidth Transimpedance Amplifier
Figure 9 implements a low noise transimpedance amplifier
using both channels of the CLC412. This circuit takes ad-
vantage of the lower input bias current noise of the non-
inverting input and achieves negative feedback through the
second CLC412 channel. The output voltage is set by the
value of R
through the adjustment of R
Buffered 2nd-Order Sallen-Key Low-Pass Filter
Figure 10 shows one implementation of a 2nd order Sallen-
Key low pass filter buffered by one of the CLC412’s chan-
nels. The CLC412 enables greater precision since it pro-
vides the advantage of very low output impedance and very
linear phase throughout the pass band.
f
while frequency compensation is achieved
FIGURE 8.
FIGURE 9.
T
.
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