Overview: ®
Data Sheet EL2244, EL2444 July 14, 2004 FN7059.1 Dual/Quad Low-Power 120MHz Unity-Gain Stable Op Amp
The EL2244 and EL2444 are dual and quad versions of the popular EL2044. They are high speed, low power, low cost monolithic operational amplifiers built on Elantec's proprietary plementary bipolar process. The EL2244 and EL2444 are unity-gain stable and feature a 325V/µs slew rate and 120MHz gain-bandwidth product while requiring only 5.2mA of supply current per amplifier. The power supply operating range of the EL2244 and EL2444 is from ±18V down to as little as ±2V. For singlesupply operation, the EL2244 and EL2444 operate from 36V down to as little as 2.5V. The excellent power supply operating range of the EL2244 and EL2444 makes them an obvious choice for applications on a single +5V or +3V supply.
The EL2244 and EL2444 also feature an extremely wide output voltage swing of ±13.6V with VS = ±15V and RL=1kΩ. At ±5V, output voltage swing is a wide ±3.8V with RL = 500Ω and ±3.2V with RL = 150Ω. Furthermore, for single-supply operation at +5V, output voltage swing is an excellent 0.3V to 3.8V with RL = 500Ω.
At a gain of +1, the EL2244 and EL2444 have a -3dB bandwidth of 120MHz with a phase margin of 50°. Because of their conventional voltage-feedback topology, the EL2244 and EL2444 allow the use of reactive or non-linear elements in their feedback network. This versatility bined with low cost and 75mA of output-current drive make the EL2244 and EL2444 an ideal choice for price-sensitive applications requiring low power and high speed.
