EL2125

Features:

• Voltage noise of only 0.83nV/Hz
• Current noise of only 2.4pA/Hz
• 200V offset voltage
• 175MHz -3dB BW for AV = 10
• Low supply current - 10mA
• SOT-23 package available
• ±2.5V to ±15V operation
• Pb-Free available (RoHS compliant)




Application

• Ultrasound input amplifiers
• Wideband instrumentation
• Communication equipment
• AGC & PLL active filters
• Wideband sensors




Pinout






Specifications

VS+ to VS- . . . . . . . . . . . . . . . . . . .. . . .. . . .. . . .. . .. . . . . . . 33V
Continuous Output Current . . . . . . . . . . . . . . . . . . . . . . . . . . 40mA
Any Input . . . . . . . . . . . . . . . . . . . . . . . . . VS- - 0.3V to VS+ + 0.3V
Power Dissipation . . . . . . . . . . . . . . . . . . . . . . . . . . . . See Curves
Ambient Operating Temperature . . . . . . . . . . . . .-45°C to +85°C
Storage Temperature . . . . . . . . . . . . . . . . . . . .. -65°C to +150°C
Maximum Die Junction Temperature . . . . . . . . .. . . . . . . . . +150°C
CAUTION: Stresses above those listed in "Absolute Maximum Ratings" may cause permanent damage to the device. This is a stress only rating and operation of the device at these or any other conditions above those indicated in the operational sections of this specification is not implied.

Description

The EL2125 is an ultra-low noise, wideband amplifier that runs on half the supply current of competitive parts. EL2125 is intended for use in systems such as ultrasound imaging where a very small signal needs to be amplified by a large amount without adding significant noise. EL2125's low power dissipation enables it to be packaged in the tiny SOT-23 package, which further helps systems where many input channels create both space and power dissipation problems. The EL2125 is stable for gains of 10 and greater and uses traditional voltage feedback. This allows the use of reactive elements in the feedback loop, a common requirement for many filter topologies. It operates from 2.5V to 15V supplies and is available in the 5 Ld SOT-23 and 8 Ld SOIC packages. The EL2125 is fabricated using Elantecs proprietary complementary bipolar process, and is specified for operation from -45C to +85C.