EL2044
Low Power/Low Voltage 120MHz Unity-Gain Stable Operational Amplifier

Key Features

• Pb-free Available
• 120MHz -3dB bandwidth
• Unity-gain stable
• Low supply current - 5.2mA @ V_S = ±15V
• Wide supply range - ±2V to ±18V dual-supply and 2.5V to 36V single-supply
• High slew rate = 325V/µs
• Fast settling - 80ns to 0.1% for a 10V step
• Low differential gain - 0.04% at A_V = +2, R_L = 150Ω
• Low differential phase - 0.15° at A_V = +2, R_L = 150Ω
• Wide output voltage swing - ±13.6V with V_S = ±15V, R_L = 1kΩ and 3.8V/0.3V with V_S = +5V, R_L = 500Ω
• Low cost, enhanced replacement for the AD847 and LM6361

Description

The EL2044 is a high speed, low power, low cost monolithic operational amplifier built on Elantec's proprietary complementary bipolar process. The EL2044 is unity-gain stable and features a 325V/µs slew rate and 120MHz gainbandwidth product while requiring only 5.2mA of supply current.

The power supply operating range of the EL2044 is from ±18V down to as little as ±2V. For single-supply operation, the EL2044 operates from 36V down to as little as 2.5V. The excellent power supply operating range of the EL2044 makes it an obvious choice for applications on a single +5V supply.

The EL2044 also features an extremely wide output voltage swing of ±13.6V with V_S = ±15V and R_L = 1kΩ. At ±5V, output voltage swing is a wide ±3.8V with R_L = 500Ω and ±3.2V with R_L = 150Ω. Furthermore, for single-supply operation at +5V, output voltage swing is an excellent 0.3V to 3.8V with R_L = 500Ω.

At a gain of +1, the EL2044 has a -3dB bandwidth of 120MHz with a phase margin of 50°. Because of its conventional voltage-feedback topology, the EL2044 allows the use of reactive or non-linear elements in its feedback network. This versatility combined with low cost and 75mA of output-current drive makes the EL2044 an ideal choice for price-sensitive applications requiring low power and high speed.

The EL2044 is available in the 8-pin SO and 8-pin PDIP packages and operates over the full -40°C to +85°C temperature range.

Applications

• Video amplifiers
• Single-supply amplifiers
• Active filters/integrators
• High speed sample-and-hold
• High speed signal processing
• ADC/DAC buffers
• Pulse/RF amplifiers
• Pin diode receivers
• Log amplifiers
• Photo multiplier amplifiers
• Difference amplifiers