KH232 Datasheet PDF - Cadeka
| Part Number | KH232 | |
| Description | Low Distortion Wideband Op Amp | |
| Manufacturers | Cadeka | |
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KH232
Low Distortion Wideband Op Amp
www.datasheet4u.com
www.cadeka.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 -VCC
Supply
Voltage
Non-Inverting
Input
7
V+ 6
89
-VCC
10
Collector
Supply
Inverting
Input
V- 5
+
-
4
4 11 Vo
Output
Not
Connected
NC 4
3
12
+VCC
21
Case
ground
GND Adjust +VCC
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 (2Vpp, RL = 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
KH232AM
-25°C to +85°C
-55°C to +125°C
-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 January 2004
|
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KH232
100°C/W
Tj(pnp)
Ppnp
www.datasheet4u.com
100°C/W
Tj(npn)
Pnpn
Tcase
48°C/W
Tj(circuit)
Pcircuit
θca
+
-
Tambient
P(circuit) = (ICC)((+VCC) – (VCC)) where ICC = 14mA at ±15V
P(xxx) = [(±VCC) – Vout – (Icol) (Rcol + 4)] (Icol) (%Duty)
For positive Vo and VCC, this is the power in the npn
device. For negative Vo and VCC, this is the power in the
pnp device.
Icol = Vo/RL or 12mA, whichever is greater. (Include feed-
back R in RL.)
Rcol is a resistor (33Ω recommended) between the xxx
collector and ±VCC.
The limiting factor for output current and voltage is junction
temperature. Of secondary importance is I(out), which
should not exceed 150mA.
Tj(pnp) = P(pnp) (100 + θca) + (P(cir) + P(npn))(θca) + Ta,
similar for Tj(npn).
Tj(cir) = P(cir)(48 + θca) + (P(pnp) + P(npn))(θca) + Ta.
θca = 65°C/W for the KH232 without heat sink in still air.
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 ±15V while
driving a 100Ω load at 15Vpp output (50% duty cycle
pulse waveform, DC = 0), P(npn) = P(pnp) = 190mW (Rcol
= 33) and P(cir) = 0.42W. Then with the Thermalloy
2268 heat sink and air flow of 300 ft/min the output
transistors’ Tj is 31°C above ambient and worst case Tj in
the rest of the circuit is 32°C above ambient. In still air,
however, the rise in Tj is 47°C and 48°C, respectively.
With no heat sink, the rise in Tj is 71°C and 72°C,
respectively! Under most conditions, HEAT SINKING IS
REQUIRED.
DATA SHEET
Other methods of heat sinking may be used, but for
best results, make contact with the base of the KH232
package, use a large thermal capacity heat sink and use
forced air convection.
Low VCC Operation: Supply Current Adjustment
The KH232 is designed to operate on supplies as low
as ±5V. In order to improve full bandwidth at reduced
supply voltages, the supply current (ICC) must be
increased. The plot of Bandwidth vs. VCC, shows the
effect of shorting pins 1 and 2 and pins 8 and 9; this
will increase both bandwidth and supply current. Care
should be taken to not exceed the maximum junction
temperatures; for this reason this technique should not
be used with supplies exceeding ±10V. For intermediate
values of VCC, external resistors between pins 1 and 2
and pins 8 and 9 can be used.
REV. 1A January 2004
5
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Part DetailsOn this page, you can learn information such as the schematic, equivalent, pinout, replacement, circuit, and manual for KH232 electronic component. |
| Information | Total 6 Pages | |
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| Download | [ KH232.PDF Datasheet ] | |
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