HA1-2420-2

Instrumentation, Op Amps, Buffer Amps Overview

The HA1-2420-2 is a monolithic sample-and-hold amplifier featuring a high-performance operational amplifier, an ultra-low leakage analog switch, and a JFET input unity gain amplifier. It operates within a temperature range of -55°C to +125°C in a 14-lead CERDIP package. Key electrical specifications include a typical gain bandwidth product of 2.5MHz, a maximum acquisition time of 6µs for a 10V step to 0.01% accuracy, and a typical low droop rate of 5µV/ms with a 1000pF hold capacitor. The device supports ±12V to ±15V supply voltages and includes a TTL-compatible control input.

Instrumentation, Op Amps, Buffer Amps Feature Summary

• Integrates a high-performance operational amplifier with an ultra-low leakage analog switch and JFET input stage
• Provides fast acquisition times coupled with superior droop characteristics across the operating temperature range
• Features a TTL-compatible control input for straightforward digital interfacing
• Capable of operating at gains greater than one, often eliminating the need for external scaling amplifiers

Instrumentation, Op Amps, Buffer Amps Applications

• 12-Bit Data Acquisition Systems
• Digital to Analog Deglitcher Circuits
• Auto Zero Systems
• Peak Detector Applications
• Gated Operational Amplifier Configurations

Instrumentation, Op Amps, Buffer Amps Procurement Notes

Verify component authenticity by checking manufacturer markings against official datasheet specifications. Confirm the part number suffix matches the required military-grade temperature range (-55°C to +125°C). Ensure the ceramic dual-in-line package type aligns with board layout requirements. Validate that all electrical parameters meet system design constraints before integration.

Instrumentation, Op Amps, Buffer Amps Selection Notes

Select this component when high accuracy and fast transient response are critical for data acquisition systems. Consider the specific hold capacitor requirements to optimize droop performance and acquisition time. Evaluate the need for offset adjustment capabilities if precision DC levels are essential. Verify that the supply voltage range and power consumption fit within the system's thermal and electrical budget.

Instrumentation, Op Amps, Buffer Amps Part Context

This device belongs to the HA-2420 family of sample-and-hold amplifiers manufactured by Intersil, now part of Renesas Electronics. The HA1-2420-2 variant specifically denotes the extended industrial/military temperature range version housed in a ceramic dual-in-line package. It represents a mature technology designed for robust performance in harsh environments requiring reliable signal sampling.

Instrumentation, Op Amps, Buffer Amps Replacement Considerations

The datasheet explicitly states 'NO RECOMMENDED REPLACEMENT'. Direct substitution requires careful evaluation of pin compatibility, electrical parameter matching, and package dimensions. Consult technical support for potential alternatives if redesign is necessary.