SL531C

The SL531C is designed as one kind of a wide band amplifiers for use in logarithmic IC amplifiers of the long type. The input and log output of a true log amplifier are at the same frequency i.e. detection does not occur. The small signal is 10dB and bandwidth is over 500MHz. At high signal levels the gain of a single stage drops to unity. Acaacade of such stages give a close approximation to a log characteristic at centre frequencies between 10 and 200MHz.

SL531C has three features. (1)Low phase shift vs amplitude. (2)On-chip supply decoupling. (3)Low external components count. Those are all the main features.

Some SL531C absolute maximum ratings have been concluded into several points as follow. (1)Its supply voltage would be 12V. (2)Its storage temperature range would be from -55°C to 150°C. (3)Its operating temperature range would be from -55°C to 125°C. (4)Its max junction temperature would be 150°C. (5)Its junction to ambient thermal resistance would be 220°C/W. (5)Its junction to case thermal resistance would be 80°C/W. It should be noted that stresses above those listed in absolute maximum ratings may cause permanent damage to device.

Also some SL531C electrical characteristics are concluded as follow. (1)Its small signal voltage gain would be min 8dB and typ 10dB and max 12dB. (2)Its high level slope gain would be min -1dB and typ 0dB and max +1dB. (3)Its upper cut off frequency would be min 250MHz and typ 500MHz. (4)Its lower cut off frequency would be typ 3MHz and max 10MHz. (5)Its supply current would be typ 17mA and max 26mA. (6)Its phase change with input amplitude would be typ 1.1° and max 3°. (7)Its input impedance would be 2.5pF parallel with 1Kohms. (8)Its output impedance would be 15ohms series with 25nH. And so on. If you have any question or suggestion or want to know more information please contact us for details. Thank you!