Agilent / HP 87405A
Preamplifier .01-3GHz
Description
The Agilent 87405A preamplifier can be added to any application in which additional gain and low noise are required.
The compact and inexpensive 11899A probe power supply is a suitable source of DC bias in remote applications.
The Agilent 87405A preamplifier brings reliable gain and low noise figure to measurement systems to improve overall system performance and reduce systematic errors.
The 87405A is compact and its convenient probe-power bias connection makes it ideal for use as the front end preamplifier for a variety of Agilent instruments such as the 8590E series of portable spectrum analyzers.
The 87405A is the recommended preamplifier for use with the 8594E Noise Figure Measurement Solution. The rugged design along with its insertable configuration of connectors makes the 87405A ideal for test port applications.
Adding the 87405A preamplifier to measurement systems can improve sensitivity for measuring low-level signals. Boost the sensitivity of any Agilent spectrum analyzer 15 to 25 dB by using the 87405A preamplifier.
Better sensitivity can be traded for measurement speed. Spurious tests often require narrow resolution bandwidths to reduce the noise floor of the analyzer, allowing low-level signal detection.
An analyzer with low noise figure allows using a wider resolution bandwidth, yet achieving the same sensitivity. Sweep times can improve one hundred fold for each decade increase in bandwidth.
The 87405A preamplifier has gain and noise figure characteristics that optimize dynamic range and sensitivity.
Key Points
24dB Gain
6.5dB Noise Figure
Probe Power Bias Connection
Compact Size
Specifications
Frequency Range: 10-3000 MHz
Small Signal Gain: 22-27 dB min-max
Output Power (1 dBC): 4 dBm
Third Order Intercept (TOI): 15 dBm typical
Output VSWR: 2:1
Impedance: 50 ohms nominal
Reverse Isolation: 60 dB typical
Survival Input Power (max): +13 dBm typical
Power Dissipation: 1.2 W nominal
Operating Temperature: 0 to +55°C
Storage Temperature: -40 to +70°C
Weight: net - 270 g, shipping - 510 g