MAX1112CPP+

Analog To Digital Converters (ADC) Overview

The MAX1112CPP+ is an 8-bit analog-to-digital converter (ADC) featuring eight single-ended or four differential analog inputs. It operates from a single 4.5V to 5.5V supply, consuming 135µA at sampling rates up to 50ksps. The device integrates a track/hold circuit, a 4.096V internal voltage reference, and a serial interface compatible with SPI, QSPI, and MICROWIRE standards. It utilizes successive-approximation conversion techniques and offers software-configurable unipolar or bipolar input modes. The component is housed in a 20-pin SSOP package and supports both internal and external clocking for flexible system integration.

Analog To Digital Converters (ADC) Feature Summary

• Integrates an internal track/hold circuit and a 4.096V voltage reference to minimize external component requirements.
• Features a flexible 4-wire serial interface compatible with standard microprocessor communication protocols.
• Supports software-selectable single-ended or differential input configurations for versatile signal acquisition.
• Includes a programmable power-down mode to significantly reduce current consumption during idle periods.

Analog To Digital Converters (ADC) Applications

• Portable data logging systems
• Hand-held measurement devices
• Medical instruments
• Solar-powered remote systems

Analog To Digital Converters (ADC) Procurement Notes

Verify the specific suffix CPP+ against official manufacturer documentation to confirm the package type and temperature range. Ensure that the ordering information matches the exact part number required for your design specifications. Cross-reference the datasheet revision date to guarantee access to the most current electrical characteristics and pinout definitions before finalizing procurement.

Analog To Digital Converters (ADC) Selection Notes

Select this component when an 8-bit resolution with multi-channel capability is sufficient for the application. Consider the internal 4.096V reference if external precision references are undesirable. Evaluate the 50ksps maximum sampling rate against the Nyquist requirements of the input signals. Verify that the serial interface timing aligns with the host microcontroller's capabilities.

Analog To Digital Converters (ADC) Part Context

This part belongs to the MAX1112/MAX1113 family of low-power, multi-channel ADCs. The MAX1112 variant provides eight analog channels, whereas the MAX1113 offers four. Both share identical core architecture and power management features. The MAX1112CPP+ specifically denotes the version packaged in a 20-pin SSOP format suitable for through-hole or surface-mount assembly depending on the specific footprint design.

Analog To Digital Converters (ADC) Replacement Considerations

Direct functional substitutes within the same series include the MAX1113 variants for applications requiring fewer channels. Check for updated revisions of the MAX1112CPP+ to ensure compatibility with existing board layouts. Verify pinout compatibility before substituting with other 8-bit SAR ADCs from different manufacturers.