www.cadeka.com
KH600
1GHz, Differential Input/Output Amplifier
Features
•
•
•
•
•
•
•
•
DC - 1GHz bandwidth
Fixed 14dB (5V/V) gain
100Ω (differential) inputs and outputs
-74/-64dBc 2nd/3rd HD at 50MHz
45mA output current
9V
pp
into 100Ω differential load
13,000V/µs slew rate
Optional supply current and offset voltage adjustment
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 100Ω differential (50Ω single ended).
The KH600 operates from ±5V supplies and offers a fixed
gain of 14dB (5V/V).
The KH600 also offers optional supply current, differential
output offset voltage, and common mode offset voltage
adjustments.
The KH600 is constructed using Cadeka's in-house thin film
resistor/bipolar transistor technology. The KH600 is available
in a 12-pin TO-8 package.
Applications
•
•
•
•
•
ATE systems
High-end instrumentation
High bandwidth output amplifier
Differential buffer
Line driver
Typical Application
Distortion (dBm)
Single Tone Intercept Point
100
90
Differential
100Ω
Source
+
-
50Ω
50Ω
80
70
60
50
40
30
20
0
50
100
I2
The KH600 includes 50Ω resistors from each
input to ground (resulting in a differential input
impedance of 100Ω).
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. 2 January 2004
CADEKA [ CADEKA MICROCIRCUITS LLC. ]
