©2004-2009 CADEKA Microcircuits LLC

www.cadeka.com

10

Data Sheet

General Description

The CLC2005 is a single supply, general purpose, voltage-

feedback amplifier fabricated on a complementary bipolar

process using a patent pending topography. It features a

rail-to-rail output stage and is unity gain stable. Both gain

bandwidth and slew rate are insensitive to temperature.

The common mode input range extends to 300mV below

will not cause phase reversal. However, if the input volt-

age 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 uses a Darlington output stage. The output

stage is short circuit protected and offers “soft” saturation

protection that improves recovery time.

The typical circuit schematic is shown in Figure 1.

Figure 1: Typical Configuration

1kΩ to minimize peaking; thus, for optimum response at a

gain of +2, a feedback resistor of 1kΩ is recommended.

Figure 2 illustrates the CLC2005 frequency response with

both 1kΩ and 2kΩ feedback resistors.

Power Dissipation

The maximum internal power dissipation allowed is directly

related to the maximum junction temperature. If the

maximum junction temperature exceeds 150°C, some

reliability degradation will occur. If the maximum junction

temperature exceeds 175°C for an extended time, device

failure may occur.

The CLC2005 is short circuit protected. However, this may

not guarantee that the maximum junction temperature

(+150°C) is not exceeded under all conditions. Follow the

maximum power derating curves shown in Figure 3 to

ensure proper operation.

Figure 3: Power Derating Curves

Overdrive Recovery

For an amplifier, an overdrive condition occurs when the

output and/or input ranges are exceeded. The recovery

time varies based on whether the input or output is over-

driven and by how much the ranges are exceeded. The

CLC2005 will typically recover in less than 20ns from an

overdrive condition. Figure 4 shows the CLC2005 in an

overdriven condition.

+

-

1/2

CLC2005

0.1μF

6.8μF

Out1

+In1

+

Frequency (MHz)

1

10

100

G = 2

Ambient Temperature ( C)

-50

-30

-10

10

30

50

70

90

0

0.5

1.0

1.5

2.0

SOIC-8 lead