MAX1110EAP+

Analog To Digital Converters (ADC) Overview

The MAX1110EAP+ is a low-power, multichannel analog-to-digital converter featuring an 8-bit resolution and eight software-configurable analog inputs. It operates from a single 2.7V to 5.5V supply and consumes 85µA at sampling rates up to 50ksps. The device integrates a track/hold circuit, a 2.048V internal reference, and a serial interface compatible with SPI, QSPI, and MICROWIRE standards. Successive-approximation conversions are executed using either the internal clock or an external serial-interface clock. The component supports unipolar and bipolar input configurations and includes a software-programmable power-down mode that reduces supply current to 6µA at 1ksps.

Analog To Digital Converters (ADC) Feature Summary

• Integrates an internal track/hold circuit and a 2.048V voltage reference for simplified system design.
• Features a flexible four-wire serial interface compatible with standard microprocessor communication protocols.
• Supports software-configurable single-ended and differential input modes across multiple channels.
• Includes a programmable automatic power-down mode to minimize energy consumption in battery-operated applications.

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 ordering suffix against official manufacturer documentation to confirm package type and temperature range. Ensure compatibility with existing board layouts by checking pin assignments and electrical specifications. Confirm RoHS compliance status through authorized distributors. Validate that the component meets all required environmental operating conditions before finalizing procurement decisions.

Analog To Digital Converters (ADC) Selection Notes

Select this component when designing systems requiring low power consumption alongside multi-channel signal acquisition. Verify that the 8-bit resolution and 50ksps sampling rate meet the application's accuracy and speed requirements. Consider the integrated reference and track/hold features if minimizing external component count is a priority. Evaluate the serial interface compatibility with the target microcontroller architecture.

Analog To Digital Converters (ADC) Part Context

The MAX1110EAP+ belongs to the MAX1110/MAX1111 family of low-power, multichannel serial ADCs manufactured by Analog Devices / Maxim Integrated. This series is designed for battery-powered instruments and high-speed closed-loop systems. The EAP+ designation indicates an extended temperature range and lead-free construction within the SSOP-20 package format.

Analog To Digital Converters (ADC) Replacement Considerations

Consult official manufacturer documentation for verified substitute part numbers. Do not assume functional equivalence based on generic specifications. Verify pinout compatibility and electrical parameter alignment before implementing any alternative components in the design.

Analog To Digital Converters (ADC) FAQ

How does the MAX1110 handle differential input configurations?

In differential mode, the MAX1110 samples the voltage difference between two selected channels (e.g., CH0/CH1). The return side must remain stable within ±0.5 LSB relative to AGND during conversion to ensure accuracy.

What is the function of the SSTRB pin?

The SSTRB pin provides an end-of-conversion signal. In internal clock mode, it goes low when conversion begins and high when complete. In external clock mode, it pulses high for two clock periods before the MSB is shifted out.

Can the digital inputs tolerate voltages higher than VDD?

Yes, the CS, SCLK, and DIN pins can accept input signals up to 5.5V regardless of the supply voltage, allowing compatibility with both 3V and 5V logic systems.