www.cadeka.com
KH207
Low Distortion Wideband Op Amp
Features
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General Description
The KH207 is a wideband, low distortion operational
amplifier designed specifically for applications requiring
both high speed and wide dynamic range. Utilizing
a proprietary current feedback architecture, the
KH207 offers performance far superior to that of
conventional voltage feedback op amps.
The most attractive feature of the KH207 is its
extremely low distortion: -80/-85dBc 2nd/3rd harmonics
at 20MHz (2V
pp
, R
L
= 200Ω). The KH207 also provides
-3dB bandwidth of 170MHz at a gain of +20, settles to
0.1% in 22ns and slews at a rate of 2400V/µs. The
combination of these features positions the KH207 as
the right choice for high speed applications requiring
exceptional signal purity.
High speed, high resolution A/D and D/A converter
systems requiring low distortion operation will find
the KH207 an excellent choice. Wide dynamic range
systems such as radar and communication receivers
will find that the KH207’s low harmonic distortion and
low noise make it an attractive high speed solution.
The addition of the KH207 to the KH205/206 Series
of high speed operational amplifiers broadens the
selection of features available from which to choose.
The KH205 offers low power operation, the KH206
offers higher drive operation, and the KH207 offers
operation with extremely low distortion, all of which
are pin compatible and overdrive protected.
The KH207 is constructed using thin film resistor/bipolar
transistor technology, and is available in the following
versions:
KH207AI
KH207AK
Supply
Voltage
-V
CC
10
9
Collector
Supply
Output
-80/-85dBc 2nd/3rd HD at 20MHz
-3dB bandwidth of 170MHz
0.1% settling in 22ns
Complete overdrive protection
2400V/µs slew rate
3MΩ input resistance
Output may be current limited
Direct replacement for CLC207
Applications
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Fast, precision A/D conversion
Automatic test equipment
Input/output amplifiers
Photodiode, CCD preamps
High-speed modems, radios
Line drivers
Bottom View
Internal
Feedback
Case
ground
GND
7
R
f
8
-V
CC
-25°C to +85°C
-55°C to +125°C
-55°C to +125°C
KH207AM
2000Ω
Non-Inverting
Input
Inverting
Input
Not
Connected
V+ 6
+
V- 5
NC 4
3
2
NC
6
6
-
11 V
o
12
+V
CC
Collector
Supply
KH207HXC
KH207HXA
-55°C to +125°C
-55°C to +125°C
12-pin TO-8 can
12-pin TO-8 can, features
burn-in & hermetic testing
12-pin TO-8 can,
environmentally
screened and electrically
tested to MIL-STD-883
SMD#: 5962-9097701HXC
SMD#: 5962-9097701HXA
1
+V
CC
Supply
Voltage
Case and
bias ground
GND
Typical Performance
Gain Setting
Parameter
+7
+20 +50
-1
-20 -50
Units
MHz
ns
V/ns
ns
-3dB bandwidth
220 170 80 220 130 80
rise time
1.7 2.2 4.7 1.7 2.9 4.7
slew rate
2.4 2.4 2.4 2.4 2.4 2.4
settling time (to 0.1%) 22 22 20 21 20 19
Not Connected
Pin 8 provides access to a 2000Ω feed-
back resistor which can be connected to
the output or left open if an external feed-
back resistor is desired.
REV. 1A January 2004
CADEKA [ CADEKA MICROCIRCUITS LLC. ]
