ICM7242IJA

Programmable Timers And Oscillators Overview

The ICM7242IJA is a monolithic CMOS dual-slope analog-to-digital converter (ADC) designed for high-precision digital panel meters. It integrates a precision reference, a high-speed comparator, and a multiplexed LCD driver to support displays up to 3½ digits. The device operates on a single supply voltage ranging from 2V to 6V, with a typical quiescent current of 1mA. It features an internal oscillator and supports external clocking options. The IJA package variant utilizes a 28-pin plastic DIP housing, suitable for through-hole mounting in industrial instrumentation and portable test equipment applications requiring accurate DC voltage measurements.

Programmable Timers And Oscillators Feature Summary

• Integrated dual-slope ADC with built-in 2.5V reference
• Supports 3½ digit LCD displays with multiplexed drive
• Single-supply operation from 2V to 6V
• Internal oscillator with external clock capability

Programmable Timers And Oscillators Applications

• Digital panel meters
• Portable multimeters
• Industrial process control instrumentation
• Battery-powered measurement devices

Programmable Timers And Oscillators Procurement Notes

Verify the specific suffix 'IJA' against manufacturer documentation to confirm the 28-pin DIP package and commercial temperature range specifications. Check for end-of-life status or obsolescence notifications from Analog Devices/Maxim Integrated prior to procurement planning.

Programmable Timers And Oscillators Selection Notes

Select this component when a complete ADC solution with integrated display driving is required for 3½ digit systems. Ensure the application voltage stays within the 2V to 6V range. Compare pin compatibility with successors like the ICM7242 if redesigning existing circuits.

Programmable Timers And Oscillators Part Context

The ICM7242 belongs to the ICM72xx family of dual-slope ADCs, widely used in legacy digital meter designs. The IJA designation specifically identifies the plastic DIP package version. This part simplifies design by combining conversion logic and display drivers into a single IC.

Programmable Timers And Oscillators Replacement Considerations

Check for direct pin-compatible replacements such as the ICM7242 in other package variants (e.g., IPE, IPL). Verify functional equivalence with newer generation ADCs if the original part is discontinued.