www.fairchildsemi.com
KH600
1GHz, Differential Input/Output Amplifier
Features
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General Description
The KH600 is the first amplifier to combine differential
input and output with a bandwidth of DC-1GHz at
2V
pp
. The inputs and outputs are 100鈩?differential
(50鈩?single ended). The KH600 operates from 鹵5V
supplies and offers a fixed gain of 14dB (5V/V).
The KH600 also offers optional supply current, differ-
ential output offset voltage, and common mode off-
set voltage adjustments.
The KH600 is constructed using Fairchild's in-house
thin film resistor/bipolar transistor technology. The
KH600 is available in a 12-pin TO8 package.
DC - 1GHz bandwidth
Fixed 14dB (5V/V) gain
100鈩?(differential) inputs and outputs
-74/-64dBc 2nd/3rd HD at 50MHz
45mA output current
9V
pp
into 100鈩?differential load
13,000V/碌s slew rate
Optional supply current and offset voltage adjustment
Applications
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ATE systems
High-end instrumentation
High bandwidth output amplifier
Differential buffer
Line driver
Typical Application
100
Single Tone Intercept Point
90
Distortion (dBm)
Differential
100鈩?/div>
Source
+
-
50鈩?/div>
50鈩?/div>
80
70
60
50
40
30
20
0
50
100
I2
The KH600 includes 50鈩?resistors from each
input to ground (resulting in a differential input
impedance of 100鈩?.
I3
150
200
250
300
350
Frequency (MHz)
2nd and 3rd Harmonic Distortion
-30
V
o
= 2V
pp
5V
pp
Pulse Response
3
2
-40
Distortion (dBc)
-50
-60
-70
-80
-90
2nd
3rd
Output voltage (V)
1
0
-1
-2
-3
-100
0
50
100
150
200
250
300
Time (2ns/div)
Frequency (MHz)
REV. 1A February 2001
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