Overview: EL2082
Current Mode Multiplier OBSOLETE PRODUCT NO RECOMMENDED REPLACEMENT contact our Technical Support Center at 1-888-INTERSIL or www.intersil.com/tsc DATASHEET
FN7152 Rev 0.00 January 1996 The EL2082 is a general purpose variable gain control building block, built using an advanced proprietary complementary bipolar process. It is a two-quandrant multiplier, so that zero or negative control voltages do not allow signal feedthrough and very high attenuation is possible. The EL2082 works in current mode rather than voltage mode, so that the input impedance is low and the output impedance is high. This allows very wide bandwidth for both large and small signals.
The IIN pin replicates the voltage present on the VIN pin; therefore, the VIN pin can be used to reject common-mode noise and establish an input ground reference. The gain control input is calibrated to 1mA/mA signal gain for 1V of control voltage. The disable pin (E) is TTL-compatible, and the output current can comply with a wide range of output voltages.
Because current signals rather than voltages are employed, multiple inputs can be summed and many outputs wire-or'ed or mixed.
The EL2082 operates from a wide range of supplies and is available in standard 8-pin plastic DIP or 8-pin SO.
