AMPLIFIERS
RF Amplifier
Model 8347A
Broadband 100 kHz to 3 GHz coverage
+20 dBm output power
Low harmonics
HP 8347A
The HP 8347A is a general-purpose broadband instrumentation
amplifier capable of providing gain and power to overcome systematic
RF losses, drive high-power devices, or improve measurement system
performance.
Switching and signal routing in ATE systems, frequency conversion, and long transmission paths to remote devices like antennas on
towers are examples of systematic power losses. With more than 25
dB of gain, the HP 8347A can overcome such losses, and its internal
leveling loop can reduce mismatch and reflection effects in a system.
Many devices, like mixers, power amplifiers, and optical modulators, require high-power drive signals. These devices are often very
level-sensitive as well. The flat, leveled, +20 dBm output power of the
HP 8347A allows proper device operation or complete characterization.
EMI, surveillance, and other demanding small-signal measurements sometimes stretch the capabilities of even the best test equipment. The HP 8347A can be used as a preamplifier to increase
sensitivity in spectrum analysis and frequency counting applications,
and can also extend dynamic range and increase low-level sweep
speed in network analysis.
Improve HP 8753 Dynamic or
Using the illustrated configuration, the HP 8753 RF network analyzer dynamic range can be improved from 100 to 120 dB, or alternatively, sweep time increased by almost 100 times.
25 dB
Simplified Block Diagram
Specifications
Frequency Range: 100 kHz to 3 GHz
Maximum Leveled Output Power: >+20 dBm
Output Power Leveling Range (>300 kHz): +2 to +20 dBm
Power Flatness (internally-leveled, ±300 kHz): ±1.5 dB
Gain: >25 dB
Harmonics (at +20 dBm output)
Internal Leveling Off (ALC Off): <-25 dBc
Internal Leveling On (ALC On): <-20 dBc
Maximum Input for Minimum Internally-Leveled
Output:-14
1 dB Compression Point: +22 dBm
Third-Order Intercept: +30 dBm
RF Input and Output Impedances: 50 ohms
VSWR
Input: 2.0:1
Output
Internally-Leveled:
Unleveled
Below 2 GHz: 2.0:1
2 to 3
Reverse Isolation: 60 dB
Noise Figure
10 MHz to 3
Below 10 MHz: 20 dB
dBm
GHz: 3.0:1
GHz:
15 dB
1.5:1
Extended Dynamic Range Configuration
General
RF Input and Output Connectors: Type N female.
Dimensions: 102 H X 213 W X 298 mm D (4.0" X 8.4" X 11.8'
Weight: Net 4 kg (8 lb). Shipping 5 kg (11 lb).
Information
HP 8347A RF Amplifier $3,950
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