Model: SDLVAC-0120-70      

Successive Detection Log Video Amplifier operates over the 0.1 to 2.0GHz range. This unit has a dynamic range of 65 to 70 dB a TSS of -67dBm and a nominal video bandwidth of 20 MHz. Furthermore this unit is designed using cutting edge GaAs technology which provides stunning performance and reliability in a compact package making it an optimum solution for high speed channelized receiver applications. This unit offers typical fast rise time <20 nS rapid fall time <25 nS as well as superior delay time of 8 nS. The log slope is 25 mV/dB and the accuracy is less than +/- 1.0 dB over the -60 to 0dBm power input range. Dynamic range can be extended to -65/+5 with log error of +/- 1.5 dB. Options are available with adjustable logging slope and DC offsets. Guaranteed rise times are less than 25nS and maximum recovery times are less than 30nS. Recovery times at lower power are faster. Sizes available are 0.75 x 0.75 x 0.135 or any other customized configuration desired. Connectorized versions are available.

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Product Feature

Test Data

Acceptance Test Procedure


Frequency Range (SDLVAC-0120-70) 0.1 GHz to 2.0 GHz (Useful Range to 2.5 GHz)
Dynamic Range > 65dB
Log Linearity +/-1.2dB MAX. (-60 dBm to 0 dBm), +/-0.8 dB TYP
Log Linearity +/-1.5dB MAX. (-65dBm TO +5dBm) +/-1.2 dB TYP
Minimum Log Voltage -60 dBm (-65 dBm TYP)
Maximum Log Voltage +5 dBm (+8 dBm TYP)
VSWR Input 1.8:1 (1.5:1 TYP)
Tangential Sensitivity -65 dBm Minimum (-70 dBm TYP)
Limited IF Output -14 dBm Minimum
Maximum RF Input +10 dBm
Log Video Output Coupling DC
Log Video Max. Output Voltage 2.7 v
Log Video Output Rise Time 25 nS
Log Video Output Fall Time 30 nS
Log Video Output Settling Time 40 nS
Log Video Output DC Offset 0.1V Nominal
Log Video Output Slope 25 mV/dB
Log Video Output Slope Variation w/ Frequency +/- 0.5 mV/dB
Log Video Output Slope Variation w/ Temperature +/-1mV Maximum
Log Video Propogation Delay 10 nS
Log Video Load 100 ohm +/-10%
DC Power Plus +7V to +18V @ 50 mA (No Video Load)
DC Power Minus -7V to -18V @ 190 mA
Size 0.75 " x 0.75 " x 0.135"

Environmental Ratings:

Temperature:  -55 ºC to +85 ºC Operating
 -65 ºC to +100 ºC Non-Operating
 Humidity:  MIL-STD-202F, Method 103B Cond. B
 Shock:  MIL-STD-202F, Method 213B Cond. B
 Vibration:  MIL-STD-202F, Method 204D Cond. B
 Altitude:  MIL-STD-202F, Method 105C Cond. B
 Temperature Cycle:  MIL-STD-202F, Method 107D Cond. A