MAX1295BCEI+

Analog To Digital Converters (ADC) Overview

The MAX1295BCEI+ 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 analog supply with power consumption of 5.4mW at the maximum sampling rate of 265ksps. The device includes an internal +2.5V reference, an on-chip clock, and a high-speed 12-bit parallel interface. It offers software-configurable analog inputs for unipolar/bipolar and single-ended/pseudo-differential operation, providing six input channels in single-ended mode. The component is housed in a 28-pin QSOP package.

Analog To Digital Converters (ADC) Feature Summary

• Software-selectable power-down modes enable shutdown between conversions, reducing supply current below 10µA at lower sampling rates.
• Features a fast wake-up time of 2µs and automatic power-down capabilities for efficient energy management.
• Includes a software-configurable analog input multiplexer supporting both single-ended and pseudo-differential configurations.

Analog To Digital Converters (ADC) Applications

• Industrial Control Systems
• Data Logging
• Energy Management
• Patient Monitoring
• Touchscreens

Analog To Digital Converters (ADC) Procurement Notes

Verify the specific ordering suffix against official documentation to confirm temperature range and linearity specifications. The 'C' suffix indicates a commercial temperature range of 0°C to +70°C, while 'E' denotes extended range. Ensure the pin-package configuration matches the required footprint. Cross-reference the manufacturer's latest datasheet for any updates regarding RoHS compliance or lifecycle status before finalizing procurement plans.

Analog To Digital Converters (ADC) Selection Notes

Select the MAX1295BCEI+ when a 12-bit resolution with ±1 LSB INL is sufficient for the application within the commercial temperature range. Consider the MAX1295ACEI+ if tighter linearity of ±0.5 LSB is required. Evaluate the channel count requirements, as this model supports up to six single-ended inputs. Ensure the system design accommodates the 28-pin QSOP package dimensions and the specific voltage supply constraints of 2.7V to 3.6V.

Analog To Digital Converters (ADC) Part Context

This component belongs to the MAX1295/MAX1297 family of low-power, 12-bit ADCs designed for battery-powered applications. It shares architectural similarities with the MAX1291 and MAX1293 series but offers distinct channel counts and interface options. The MAX1295 variant specifically provides six analog input channels, distinguishing it from the two-channel MAX1297. Both devices utilize a parallel interface and integrate an internal reference to simplify system design.

Analog To Digital Converters (ADC) Replacement Considerations

For pin-compatible +5V versions, refer to the MAX1294/MAX1296 data sheet. If tri-stating the INT signal upon CS going high is not desired, consider the MAX1265/MAX1267. Verify that substitute components match the 12-bit resolution, SAR architecture, and parallel interface requirements.