kh232 Fairchild Semiconductor, kh232 Datasheet

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kh232

Manufacturer Part Number
kh232
Description
Low Distortion Wideband Op Amp
Manufacturer
Fairchild Semiconductor
Datasheet
KH232
Low Distortion Wideband Op Amp
Features
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Applications
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-69dBc 2nd and 3rd harmonics at 20MHz
-3dB bandwidth of 270MHz
0.05% settling in 15ns
3000V/µs slew rate
1mV input offset voltage, 10µV/°C drift
±10V, 100mA max output
Direct replacement for CLC232
Flash A/D drivers
DAC current-to-voltage conversion
Wide dynamic range IF amps
VCO drivers
DDS postamps
Radar/communication receivers
Precision line drivers
Pins 2 and 8 are used to adjust the sup-
ply current or to adjust the offset voltage
(see text). These pins are normally left
unconnected.
Non-Inverting
Connected
Inverting
Input
Input
Not
ground
ground
Case
Case
NC
V+
V-
6
5
4
Bottom View
GND
GND
7
3
I
I
CC
CC
+
-
Adjust
Adjust
Adjust
Adjust
8
2
+V
-V
9
1
CC
CC
4
4
+V
-V
10
11
12
CC
Supply
Voltage
CC
Supply
Voltage
V
o
Collector
Supply
Collector
Supply
Output
General Description
The KH232 is a wideband low distortion operational
amplifier designed specifically for high speed, low gain
applications requiring wide dynamic range. Utilizing a
current feedback architecture, the KH232 offers high
speed performance while maintaining DC precision.
The KH232 offers precise gains from ±1 to ±5 with a
true 0.1% linearity and provides stable, oscillation-
free operation across the entire gain range without
external compensation. The KH232, a pin compatible
enhanced version of the KH231, reduces 2nd and 3rd
harmonic distortion to an extremely low -69dBc at
20MHz (2V
by the KH232 include a small signal bandwidth of
270MHz, a large signal bandwidth of 95MHz and a
3000V/µs slew rate. The input offset voltage is typically
1mV with an input offset drift of 10µV/°C.
The KH232 combines these high performance features
with its 0.05% settling time of 15ns and its 100mA
drive capability to provide high speed, high resolution
A/D and D/A converter systems with an attractive
solution for driving and buffering.
range systems such as radar and communication
receivers requiring low harmonic distortion and low
noise will find the KH232 to be an excellent choice. As
a line driver, the KH232 set at a gain of 2 cancels
matched line losses.
The KH232 is constructed using thin film resistor/bipolar
transistor technology, and is available in the following
versions:
KH232AI
KH232AK
KH232AM
KH232HXC
KH232HXA
Typical Performance
Parameter
-3dB bandwidth
rise time (2V)
slew rate
settling time (to 0.1%)
pp
-25°C to +85°C
-55°C to +125°C
-55°C to +125°C
-55°C to +125°C
-55°C to +125°C
, R
L
= 100Ω). Additional features provided
430 270 135 220 175 110
1.8
2.5
12
1
2.0
3.0
12
2
Gain Setting
2.5 2.0
3.0 3.0
12
5
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#: 5962-9166501HXC
SMD#: 5962-9166501HXA
www.fairchildsemi.com
12
-1
REV. 1A February 2001
2.2 2.9
3.0 3.0
12
-2
Wide dynamic
15
-5
Units
MHz
V/ns
ns
ns

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kh232 Summary of contents

Page 1

... KH232 excellent choice line driver, the KH232 set at a gain of 2 cancels matched line losses. The KH232 is constructed using thin film resistor/bipolar ...

Page 2

... DATA SHEET KH232 Electrical Characteristics PARAMETERS Ambient Temperature Ambient Temperature FREQUENCY DOMAIN RESPONSE -3dB bandwidth (note 2) ¦ large-signal bandwidth gain flatness (note 2) peaking ¦ peaking ¦ rolloff ¦ group delay linear phase deviation reverse isolation non-inverting inverting TIME DOMAIN RESPONSE rise and fall time settling time to 0 ...

Page 3

... KH232 KH232 Typical Performance Characteristics Non-Inverting Frequency Response Gain Phase 150 Frequency (MHz) Bandwidth vs 1.2 1.0 Pins 1 and 2 Shorted Pins 8 and 9 shorted 0.8 0.6 0 ±V (V) CC 2nd Harmonic Distortion -20 -30 - -50 ...

Page 4

... The KH232 is based on the current feedback op amp topology, a design that uses current feedback instead of the usual voltage feedback. The use of the KH232 is basically the same as that of the conventional op amp (see Figures 1 and 2). Since the device is designed specifically for low gain applications, the best performance is obtained when the circuit is used at gains between ± ...

Page 5

... P j(cir) (cir) ca (pnp) θ = 65°C/W for the KH232 without heat sink in still air. ca 35°C/W for the KH232 with a Thermalloy 2268A heat sink in still air. 15°C/W for the KH232 with a Thermalloy 2268A heat sink at 300 ft/min air. (Thermalloy 2240A works equally as well.) For example, with the KH232 operating at ± ...

Page 6

... DATA SHEET KH232 Package Dimensions φ SYMBOL A φb φD φ α 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 ...

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