MAX1295BEEI+

Analog To Digital Converters (ADC) Overview

The MAX1295BEEI+ is a low-power, 12-bit analog-to-digital converter (ADC) featuring a successive-approximation register (SAR) architecture. It operates on a single +2.7V to +3.6V supply with a maximum sampling rate of 265ksps and power consumption of 5.4mW. The device includes an on-chip clock, a +2.5V internal reference, and a high-speed 12-bit parallel interface. It offers six single-ended or three pseudo-differential input channels in a 28-pin QSOP package. Linearity specifications include ±1 LSB INL and DNL for the B-grade variant.

Analog To Digital Converters (ADC) Feature Summary

• Software-configurable analog input multiplexer supporting unipolar/bipolar and single-ended/pseudo-differential modes
• Internal +2.5V bandgap reference with external reference capability via REFADJ pin
• Two software-selectable power-down modes enabling rapid wake-up and ultra-low standby current
• Three-state parallel digital interface compatible with standard microprocessors

Analog To Digital Converters (ADC) Applications

• Industrial control systems
• Data-acquisition systems
• Patient monitoring equipment
• Energy management devices

Analog To Digital Converters (ADC) Procurement Notes

Verify the specific suffix EEI confirms the -40°C to +85°C temperature range and ±1 LSB linearity grade. Confirm the 28-pin QSOP package matches the design footprint. Ensure the datasheet revision aligns with the intended application requirements before finalizing procurement.

Analog To Digital Converters (ADC) Selection Notes

Select this component when a 12-bit resolution and 265ksps throughput are required within a tight power budget. The integrated reference and clock simplify board layout compared to discrete solutions. Consider the MAX1297 if fewer channels are sufficient, or the MAX1294/MAX1296 for +5V compatibility.

Analog To Digital Converters (ADC) Part Context

This part belongs to the MAX1295/MAX1297 family of low-power ADCs from Analog Devices/Maxim Integrated. It serves as a cost-effective solution for battery-powered applications requiring moderate speed and precision. The B-grade variant provides standard industrial linearity specifications suitable for general-purpose data acquisition tasks.

Analog To Digital Converters (ADC) Replacement Considerations

The MAX1297BEEG is a pin-compatible alternative with fewer channels (2 single-ended). For +5V operation, the MAX1294/MAX1296 series offers functional equivalents. Verify interface timing and voltage levels when substituting.