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PDF ( 数据手册 , 数据表 ) KH205

零件编号 KH205
描述 Overdrive-Protected Wideband Op Amp
制造商 Fairchild Semiconductor
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KH205 数据手册, 描述, 功能
KH205
Overdrive-Protected Wideband Op Amp
www.fairchildsemi.com
Features
s -3dB bandwidth of 170MHz
s 0.1% settling in 22ns
s Complete overdrive protection
s Low power: 570mW (190mW at ±5V)
s 3Minput resistance
s Output may be current limited
s Direct replacement for CLC205
Applications
s Fast, precision A/D conversion
s Automatic test equipment
s Input/output amplifiers
s Photodiode, CCD preamps
s IF processors
s High-speed modems, radios
s Line drivers
Large Signal Pulse Response
Av = +20
Av = -20
Time (5ns/div)
Bottom View
Internal
Feedback
Case
ground
GND Rf
78
Non-Inverting
Input
V+ 6
2000
Inverting
Input
V- 5
+
-
-VCC
9
Supply
Voltage
-VCC
10
Collector
Supply
6
6 11 Vo
Output
Not NC 4
Connected
Case and
bias ground
12
+VCC
3 21
GND NC +VCC
Not Connected
Supply
Voltage
Collector
Supply
Pin 8 provides access to a 2000feed-
back resistor which can be connected to
the output or left open if an external feed-
back resistor is desired.
General Description
The KH205 is a wideband overdrive-protected opera-
tional amplifier designed for applications needing
both speed and low power operation. Utilizing a
well-established current feedback architecture, the
KH205 exhibits performance far beyond that of
conventional voltage feedback op amps. For example,
the KH205 has a bandwidth of 170MHz at a gain of
+20 and settles to 0.1% in 22ns. Plus, the KH205 has
a combination of important features not found in
other high-speed op amps.
For example, the KH205 has been designed to consume
little power – 570mW at ±15V supplies. The result is
lower power supply requirements and less system-
level heat dissipation. In addition, the device can be
operated on supply voltages as low as ±5V for even
lower power dissipation.
Complete overdrive protection has been designed
into the part. This is critical for applications, such as
ATE and instrumentation, which require protection
from signal levels high enough to cause saturation of
the amplifier. This feature allows the output of the
op amp to be protected against short circuits using
techniques developed for low-speed op amps. With
this capability, even the fastest signal sources can
feature effective short circuit protection.
The KH205 is constructed using thin film resistor/bipolar
transistor technology, and is available in the following
versions:
KH205AI
KH205AK
-25°C to +85°C
-55°C to +125°C
KH205AM -55°C to +125°C
KH205HXC -55°C to +125°C
KH205HXA -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#: 5962-9083501HXC
SMD#: 5962-9083501HXA
Typical Performance
Gain Setting
Parameter
+7 +20 +50 -1 -20 -50
-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
Units
MHz
ns
V/ns
ns
REV. 1A February 2001












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