Differential Input/Output Amplifier - Cadeka
Description
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KH600
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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 9Vpp 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 2Vpp.
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
Vo = 2Vpp
5Vpp 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
DATA SHEET
KH600
Pin Assignments
12-pin TO8
TOP VIEW
GND 12 +In 1
+Vb1 11
+Vs 10 +OUT 9
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-Vb 2 8 -Vs 3 -In 4 GND 5 +Vb2 6 +Vs 7 -OUT
NOTE: Case is grounded.
Pin Definitions
Pin Number 6, 10 8 11 5 2 1 3 9 7 4, 12 Pin Name +Vs -Vs +Vb1 +Vb2 -Vb IN1 IN2 OUT1 OUT2 GND Pin Function Description Positive supply voltage Negative supply voltage Positive bias voltage for OUT1 Positive bias voltage for OUT2 Nega...
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