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KH220
Fast Settling Wideband Op Amp
Features
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General Description
The KH220 is a wide bandwidth DC-coupled operational
amplifier that defines the state-of-the-art in high
speed op amps. A -3dB bandwidth of DC to 190MHz
is achieved using a current feedback architecture
design. Ultra-fast settling time (8nsec to 0.1%) and
slew rate (7000V/µsec) make the KH220 a superior
amplifier for pulsed and digital applications.
Since thermal tail has been eliminated, the KH220
settles fast and remains solidly at the desired level.
Flat gain and linear phase (1.2° deviation from linear)
from DC to beyond 100MHz help the KH220 to
achieve distortion levels uncommonly low relative to
conventional op amps.
Using the KH220 is as easy as adding power supplies
and a gain-setting resistor. The result is reliable,
consistent performance because such characteristics as
bandwidth and settling time are virtually independent
of gain setting. Unlike conventional op amp designs
where the optimum gain-bandwidth product occurs
at a high gain, minimum settling time at a gain of -1,
maximum slew rate at a gain of +1, et cetera, the
KH220 offers predictable response at gain settings
from ±1 to ±50. This, coupled with consistent perfor-
mance from unit to unit with no external
compensation, makes the KH220 a real time and cost-
saver in design and production situations alike.
This combination of features makes the KH220
appropriate for a broad range of applications. The
wide bandwidth, DC coupling, and fast settling lend
themselves well to high speed D to A and “flash” A to
D applications. Both receivers and transmitters in
optical fiber systems have similar requirements. High
gain and phase linearity and corresponding low
distortion make the KH220 ideal for many digital
communication system applications, such as in the
demodulator, where the need for both DC coupling
and high frequency amplification creates require-
ments that are difficult to meet.
The KH220 is constructed using thin film resistor/bipolar
transistor technology, and available in these versions:
-3dB bandwidth of 190MHz
0.1% settling in 8ns
7000V/µs slew rate
1.9ns rise and fall times
Low distortion, linear phase
Direct replacement for CLC220
Applications
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Very high-speed A to D, D to A conversion
High-speed fiber optic systems
Baseband and video communications
Radar and IF processors
Very fast risetime pulse amplifiers
Bottom View
Typical Performance
KH220AI
KH220AK
KH220AM
-25°C to +85°C
-55°C to +125°C
-55°C to +125°C
KH220HXC
KH220HXA
-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#: 5962-8991101HXC
SMD#: 5962-8991101HXA
REV. 1A February 2001
DATA SHEET
KH220
KH220 Package Dimensions
A
L
e
1
e
2
7
6
8
9
10
11
12
φD
D
1
e
5
4
φb
F
k
3
2
1
α
k
1
TO-8
SYMBOL
A
φb
φD
φD
1
e
e
1
e
2
F
k
k
1
L
INCHES
Minimun
0.142
0.016
0.595
0.543
Maximum
0.181
0.019
0.605
0.555
MILIMETERS
Minimum
3.61
0.41
15.11
13.79
Maximum
4.60
0.48
15.37
14.10
NOTES:
Seal: cap weld
Lead finish: gold per MIL-M-38510
Package composition:
Package: metal
Lid: Type A per MIL-M-38510
0.400 BSC
0.200 BSC
0.100 BSC
0.016
0.026
0.026
0.310
0.030
0.036
0.036
0.340
10.16 BSC
5.08 BSC
2.54 BSC
0.41
0.66
0.66
7.87
0.76
0.91
0.91
8.64
α
45° BSC
45° BSC
DISCLAIMER
FAIRCHILD SEMICONDUCTOR RESERVES THE RIGHT TO MAKE CHANGES WITHOUT FURTHER NOTICES TO ANY PRODUCTS HEREIN TO IMPROVE RELIABILITY, FUNCTION OR DESIGN. FAIRCHILD
DOES NOT ASSUME ANY LIABILITY ARISING OUT OF THE APPLICATION OR USE OF ANY PRODUCT OR CIRCUIT DESCRIBED HEREIN; NEITHER DOES IT CONVEY ANY LICENSE UNDER ITS PATENT
RIGHTS, NOR THE RIGHTS OF OTHERS.
LIFE SUPPORT POLICY
FAIRCHILD’S PRODUCTS ARE NOT AUTHORIZED FOR USE AS CRITICAL COMPONENTS IN LIFE SUPPORT DEVICES OR SYSTEMS WITHOUT THE EXPRESS WRITTEN APPROVAL OF THE PRESIDENT
OF FAIRCHILD SEMICONDUCTOR CORPORATION. As used herein:
1.
Life support devices or systems are devices or systems which, (a) are intended for
surgical implant into the body, or (b) support or sustain life, and (c) whose failure to
perform when properly used in accordance with instructions for use provided in the
labeling, can be reasonably expected to result in a significant injury of the user.
2.
A critical component in any component of a life support device or system whose
failure to perform can be reasonably expected to cause the failure of the life
support device or system, or to affect its safety or effectiveness.
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© 2001 Fairchild Semiconductor Corporation
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