EL2082C

V_S    Voltagebetween V_S +andV_S -                         +33V
V_IN, I_OUT Voltage                                                     ±V_S
V_E  V_GAIN InputVoltage                                    - 1to+ 7V
I_IN InputCurrent                                                   ±5mA
P_D   MaximumPowerDissipation                     SeeCurves
T_A   OperatingTemperatureRange              0 to+ 75
T_J   OperatingJunctionTemperature                      150
T_ST StorageTemperature                      -65 to +150

The EL2082 is a general purpose variable gain control building block built using an advanced proprietary complementary bi- polar 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 EL2082C IIN pin replicates the voltage present on the VIN pin there-fore the V_IN pin can be used to reject common-mode noise and establish an input ground reference The gain control input is calibrated to 1 mAmA 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 mul- tiple inputs can be summed and many outputs wire-or'ed or mixed

The EL2082 operates from a wide range of supplies and is avail- able in standard 8-pin plastic DIP or 8-lead SO