The HA-2620 is a bipolar operational amplifier (op amp) that features very high input impedance (500MΩ) coupled with wideband AC performance. The high resistance of the input stage is complemented by low offset voltage (0. 5mV) and low bias and offset current (1nA) to facilitate accurate signal processing. Input offset can be reduced further by means of an external nulling potentiometer. The 100MHz gain bandwidth product (HA‑2620 is stable for closed loop gains greater than 5), 35V/µs slew rate, and 150kV/V open loop gain enable the HA‑2620 to perform high-gain amplification of very fast, wideband signals. These dynamic characteristics, coupled with fast settling times, make this amplifier ideally suited to pulse amplification designs and high frequency (such as 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, HA-2620 is suited to other high performance designs such as high-gain low distortion audio amplifiers, high-Q and wideband active filters, and high-speed comparators. For more information, see Application Note AN519.


  • Gain bandwidth product (AV ≥ 5): 100MHz
  • High input impedance: 500MΩ
  • Low input bias current: 1nA
  • Low input offset current: 1nA
  • Low input offset voltage: 3mV
  • High gain: 150kV/V
  • Slew rate: 35V/µs
  • Output short-circuit protection
  • Compensation pin for unity gain capability


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


Title language Type Format File Size Date
star HA-2620 Datasheet Datasheet PDF 267 KB
How to Bias Op-Amps Correctly Application Note PDF 263 KB
AN1993: Voltage Feedback versus Current Feedback Operational Amplifiers Application Note PDF 564 KB
AN1694: The Four Basic Building Blocks of an Op Amp Application Note PDF 357 KB
AN535: Design Considerations for a Data Acquisition System (DAS) Application Note PDF 843 KB
AN9867: End of Life Derating: A Necessity or Overkill Application Note PDF 338 KB
AN9415: Feedback, Op Amps and Compensation Application Note PDF 854 KB
AN9510: Basic Analog for Digital Designers Application Note PDF 508 KB
AN9523: Evaluation Programs for SPICE Op Amp Models Application Note PDF 520 KB
AN519 : Operational Amplifier Noise Prediction Application Note PDF 305 KB
AN551: Recommended Test Procedures for Operational Amplifiers Application Note PDF 415 KB
PA11003 - Packing Method Change for Intersil TO-xx Metal Can and Flat Pack Packaged Products Product Advisory PDF 499 KB
PA10098 - Alternate Marking Method for Intersil TO-Can Packaged Products Product Advisory PDF 67 KB
Intersil Space Products Brochure Brochure PDF 3.16 MB
Analog ICs Brochure 日本語 Brochure PDF 4.20 MB
General-purpose operational amplifiers and comparators Pamphlet ( D18268EJ2V0PF00 ) Flyer PDF 1.11 MB
TB514: Operational Amplifier Basics Other PDF 519 KB


Title language Type Format File Size Date
HA-2620 SPICE Macromodel Model - Other MDL 1 KB
HA2620, HA2622 SPICE Macromodel Model - Other PDF 1.45 MB