CLC2005IMP8EVB View Datasheet(PDF) - Exar Corporation
Part Name
Description
MFG CO.
'CLC2005IMP8EVB' PDF : 19 Pages View PDF
CLC1005, CLC1015, CLC2005
Application Information
General Description
The CLC1005, CLC1015, and CLC2005 are single supply,
general purpose, voltage-feedback amplifiers fabricated
on a complementary bipolar process using a patented
topography. They feature a rail-to-rail output stage and are
unity gain stable. Both gain bandwidth and slew rate are
insensitive to temperature.
The common mode input range extends to 300mV below
ground and to 1.2V below Vs. Exceeding these values will
not cause phase reversal. However, if the input voltage
exceeds the rails by more than 0.5V, the input ESD devices
will begin to conduct. The output will stay at the rail during
this overdrive condition.
The design is short circuit protected and offers “soft”
saturation protection that improves recovery time.
Figures 1, 2, and 3 illustrate typical circuit configurations for
non-inverting, inverting, and unity gain topologies for dual
supply applications. They show the recommended bypass
capacitor values and overall closed loop gain equations. Figure
4 shows the typical non-inverting gain circuit for single supply
applications.
+Vs
6.8μF
+Vs
6.8μF
Input
+
0.1μF
-
0.1μF
Output
RL
6.8μF
-Vs
G=1
Figure 3: Unity Gain Circuit
+Vs
6.8μF
+
In
0.1μF
+
Out
-
Rf
Rg
Input
+
0.1μF
-
0.1μF
Rf
Output
RL
Rg
6.8μF
-Vs
G = 1 + (Rf/Rg)
Figure 1: Typical Non-Inverting Gain Circuit
+Vs
6.8μF
Figure 4: Single Supply Non-Inverting Gain Circuit
At non-inverting gains other than G = +1, keep Rg below 1kΩ
to minimize peaking; thus for optimum response at a gain of
+2, a feedback resistor of 1kΩ is recommended. Figure 5
illustrates the CLC1005, CLC1015 and CLC2005 frequency
response with both 1kΩ and 2kΩ feedback resistors.
G=2
RL = 2kΩ
Vs = +5V
Rf = 2kΩ
Input
R1
+
Rg
-
0.1μF
0.1μF
Rf
Output
RL
6.8μF
-Vs
G = - (Rf/Rg)
For optimum input offset
voltage set R1 = Rf || Rg
Figure 2: Typical Inverting Gain Circuit
© 2007-2015 Exar Corporation
12 / 19
Rf = 1kΩ
1
10
100
Frequency (MHz)
Figure 5: Frequency Response vs. Rf
exar.com/CLC1005
Rev 2D
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