電子部品(マイクロ波&ミリ波)の総合商社:株式会社AMT
2011.05.27

アナダイン(Anadyne)社の新製品:ログ・ビデオ・アンプ(Log Video Amplifier IC)のご紹介

■アナダイン(Anadyne)社から
 ログ・ビデオ・アンプ(Log Video Amplifier IC)
 型名: L-17Dが開発されました。



・モデルL-17Cを改良した後継の製品です。
 同じパッケージでありながら
 性能も使いやすさも向上しました。
 主な特長は高速超低ノイズ。
 

Parameter Spec Notes
Package 10mm x 10mm 36-pin flat-pack (same package as L-17C); The L-17D die is 80 x 120 mils (2 x 3 mm)
Rise Time/Bandwidth    
inputs 40µV to 150µV <10ns/ 40 MHz Depends on board layout. The useable L-17C Bandwidth was about 20 MHz, full scale.
for inputs > 150µV < 6ns/ 60 MHz
Noise (voltage/current) 1.2 nV/Hz1/2 / 1.0 pA/Hz1/2 @25°C; (L-17C voltage noise is ~1.5 nV/Hz1/2)
Pulse Recovery Time < 150ns Does not include any detector contribution. Can be shortened with recovery nets. Has been tuned to <50ns at 0dbm with a tunnel diode.
Dynamic Range > 90 dBV Using a tunnel diode detector. Using a Schottky detector, a 60dBm range has been achieved.
Log Linearity < ±0.3 dB Over the full dynamic range
Temperature Drift < ±0.5 dB (after trimming) From -55°C to +85°C and higher
Transit Time < 9 ns Measured through the entire LVA, between the 50% points of the input and output; the spread is adjustable to <2 ns over the dynamic range.
Pulse-to-CW Variation < 0.2 dB A change in pulse duration from 10 ns to 1 ms (at high duty-cycle) does not affect pulse height.
LVA Power Rail voltages ± 5V to ± 9V Special regulation or dual-tracking not required. Quiescent power draw is ~ 375 mW at ± 6V. Currents at ± 6V are 31mA from the positive supply and 32 mA from the negative supply.
Output Offset Adjustable Maximum output voltage is +5V (rails at ±9V). Will drive a 50 Ω cable for outputs up to 4 V.
Output Slope Adjustable  
Output Load ≥50 ohms  

  
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