EL1504, EL1505 pdf datasheet (

The EL1504, EL1505 contain two
wideband high-voltage drivers. It is
designed to drive 45VP-P signals at
2MHz into a 200Ω load differentially with very low distortion.
Both amplifiers are of the current-feedback type, giving high
slew rates while consuming moderate power. They retain
frequency response over a wide range of externally set
gains.
The EL1504, EL1505 operate on ±5V to ±15V supplies, and
maintain their bandwidths and linearities over the supply
range.
The EL1504, in a 20-Pin Fused Lead SOIC package, has
eight center pins which are used as ground connections and
heat spreaders. This facilitates the use of external
heatsinking to increase the power handling of the device.
The EL1505, in a 16-Pin SOIC package, is designed for
applications which do not require full power and where a
smaller PCB footprint is desirable. The packages are
specified for operation over the full -40°C to +85°C
temperature range.