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HA-2625 is a bipolar operational amplifier that features very high input impedance coupled with wideband AC performance. The high resistance of the input stage is complemented by low offset voltage and low bias and offset current to facilitate accurate signal processing. Input offset can be reduced further by means of an external nulling potentiometer. The 100MHz gain bandwidth product (HA-2625 is stable for closed loop gains greater than 5), 35V/µs slew rate and 150kV/V open loop gain enables the HA-2625 to perform high gain amplification of very fast, wideband signals. These dynamic characteristics, coupled with fast settling times, make these amplifiers ideally suited to pulse amplification designs as well as high frequency (e.g., video) applications. The frequency response of the amplifier can be tailored to exact design requirements by means of an external bandwidth control capacitor connected from the Comp pin to GND.

In addition to its application in pulse and video amplifier designs, the HA-2625 is particularly suited to other high performance designs such as high-gain low distortion audio amplifiers, high-Q and wideband active filters and highspeed comparators. For more information, please refer to Application Notes AN509, AN519 and AN546.

Key Features

• Gain Bandwidth Product (AV < 5) 100MHz
• High Input Impedance 300MΩ
• Low Input Bias Current 5nA
• Low Input Offset Current 5nA
• Low Input Offset Voltage 3mV
• High Gain 150kV/V
• Slew Rate 35V/µs
• Output Short Circuit Protection
• Compensation Pin for Unity Gain Capability

Applications

• Video and RF Amplifier
• Pulse Amplifier
• Audio Amplifiers and Filters
• High-Q Active Filters
• High Speed Comparators
• Low Distortion Oscillator