Maxim Integrated ICL7117CMH Product Description

The ICL7117CMH is a high-performance, low-power, 3 1/2 digit analog-to-digital converter (ADC) integrated circuit brought to you by Maxim Integrated. This precision device is designed to provide a simple and effective solution for digital readout of analog signals, making it an ideal choice for a wide range of applications such as digital voltmeters, temperature measurement systems, and other instrumentation devices.

Key to the ICL7117CMH's functionality is its ability to directly drive a multiplexed 7-segment LED display without the need for external drivers. This capability simplifies the design and reduces the overall component count, which is beneficial for compact and cost-effective product designs. The chip incorporates a built-in seven segment decoders, display drivers, a reference, and a clock, streamlining the development process for engineers.

The ICL7117CMH operates with a dual-slope integration method that ensures excellent noise rejection and a stable display. The converter features auto-zero to less than 10µV, zero drift of less than 1µV/°C, input bias current of 10pA max, and roll-over error of less than one count. These specifications demonstrate the chip's high precision and reliability in measurement tasks.

With a guaranteed zero reading for 0V input on all scales, this ADC provides true differential input and differential reference input, allowing for flexible interfacing with different sensor types. The ICL7117CMH is designed to operate over a wide power supply range, from 5V to 40V, which is a significant advantage for systems that must work within varying power environments.

Maxim Integrated's commitment to quality ensures that the ICL7117CMH meets the stringent requirements of industrial and commercial applications. Its robust design is encapsulated in a 40-pin MQFP (Metal Quad Flat Pack) package, which is known for its durability and ease of mounting on printed circuit boards.

In summary, the ICL7117CMH from Maxim Integrated is a versatile, easy-to-use ADC that offers precision measurement capabilities, integrated display driving, and a robust package, making it an excellent choice for developers looking to enhance their digital measurement systems.