Maxim Integrated ICL7136CMH+D Precision ADC

The ICL7136CMH+D from Maxim Integrated is a high-performance, low-power, 3.5 digit analog-to-digital converter (ADC) that offers a full-scale reading of ±1999 counts. Designed with an integrated reference and on-chip clock, this ADC provides a complete and cost-effective solution for applications requiring high-precision measurements. The ICL7136CMH+D is well-suited for battery-operated devices, handheld meters, multimeters, and any other systems where power efficiency and accuracy are crucial.

This device integrates a dual-slope conversion technique which ensures a high level of noise rejection and stability over time and temperature. Its auto-zero cycle guarantees a zero reading for 0 volts input, and it features a polarity indicator for negative readings. The ICL7136CMH+D also incorporates a low-battery indicator to alert the user when the battery voltage falls below a predefined threshold, ensuring reliable operation.

The ICL7136CMH+D operates over a wide supply voltage range of 4.5V to 6.0V, which, combined with its low power consumption, makes it ideal for portable applications. It offers a typical quiescent current of just 1mA, further enhancing its suitability for battery-powered devices. The device's multiplexed BCD output not only simplifies interfacing to seven-segment displays but also allows for easy connection to microprocessors.

Key features of the ICL7136CMH+D include:

• High-precision analog-to-digital conversion
• Low power consumption, ideal for battery-operated devices
• On-chip clock and reference voltage
• True differential inputs and reference with a common mode rejection ratio (CMRR) of 86dB
• Overrange and underrange signal outputs
• Simple digital interface with multiplexed BCD output
• Guaranteed zero reading for 0V input

The ICL7136CMH+D is available in a 40-pin DIP package, providing easy integration into a wide range of electronic systems. Whether you are designing a precision measurement instrument or upgrading an existing system, the ICL7136CMH+D offers a reliable and cost-effective solution for your analog-to-digital conversion needs.