KH232 Datasheet, PDF (1/6 Pages) Fairchild Semiconductor – Low Distortion Wideband Op Amp

KH232
Low Distortion Wideband Op Amp
www.fairchildsemi.com
Features
s -69dBc 2nd and 3rd harmonics at 20MHz
s -3dB bandwidth of 270MHz
s 0.05% settling in 15ns
s 3000V/µs slew rate
s 1mV input offset voltage, 10µV/°C drift
s ±10V, 100mA max output
s Direct replacement for CLC232
Applications
s Flash A/D drivers
s DAC current-to-voltage conversion
s Wide dynamic range IF amps
s VCO drivers
s DDS postamps
s Radar/communication receivers
s Precision line drivers
Bottom View
ICC Adjust
Case
ground
GND ^{Adjust -V}CC
Supply
Voltage
Non-Inverting
Input
7
V+ 6
8
9
-V_CC
10
Collector
Supply
+
Inverting
V- 5
Input
-
4
4 ^{11 Vo}
Output
Not NC 4
Connected
3
12
+V_CC
2
1
Case
ground
GND Adjust +V_CC
ICC Adjust
Supply
Voltage
Collector
Supply
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.
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_pp, R_L = 100Ω). Additional features provided
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. Wide dynamic
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
-25°C to +85°C
-55°C to +125°C
KH232AM -55°C to +125°C
KH232HXC -55°C to +125°C
KH232HXA -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#: 5962-9166501HXC
SMD#: 5962-9166501HXA
Typical Performance
Gain Setting
Parameter
1 2 5 -1 -2 -5
-3dB bandwidth
430 270 135 220 175 110
rise time (2V)
1.8 2.0 2.5 2.0 2.2 2.9
slew rate
2.5 3.0 3.0 3.0 3.0 3.0
settling time (to 0.1%) 12 12 12 12 12 15
Units
MHz
ns
V/ns
ns
REV. 1A February 2001