Ultra-Small Switchable Pseudo AC/DC Coupled Detector Log Amplifier (DLA)

Frequency Range 0.5 to 40 GHz To meet the following environmental conditions:


Operating Case  Temperature      -40 to +85 °C

Storage Temperature                   -55 to +105 °C


Mechanical Shock:     Per MIL-STD-810G,

Method 516.5

Vibration:   Per MIL-STD-810G, Method 514.5

Humidity:   MIL-STD-810G, Method 507.4

Altitude:     MIL-STD-810G, Method 500.5, to 20Kft. Mechanical:   All SMA Connectors are field-                                   replaceable

Material:   SS303

Finish:      Gold Plating per MIL-G-45204B

Dynamic Range


-43 to  +2 dBm


Flatness ± 3.0 dB max.
VSWR 2.5:1 typ.
Rise Time 20 nsec. typical,  30 nsec. max.
Recovery Time 500 nsec. max.
Log Linearity


±1.0 dB max.


Log  Slope into 50 ohm load 50 mV/dB (±4mV)*
Power Supply      +12 to  +15V

-12  to  -15V

170 mA max. **

70 mA max

TSS -48 dBm max Mode Switch

TTL1 Pseudo AC (3 to 5V)

TTL0 DC Coupled (or no connection)

Drift over Temperature -0.02dB/°C
Pseudo AC Range (TTL 1): TSS  to -25 dBm
Droop (Up to 100 µsec.): 1 dB max. (> -40 dBm) DC Offset  +50 ± 50 mV for Pseudo AC Coupled DC Offset  +50 ± 100 mV for DC Coupled
Baseline Shift:  1 dB max (TSS to -25 dBm)

Maximum input level without damage:  +15 dBm

∗ Must use 50 ohm cable

∗∗ Excluding load circuit

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