MAX144BCPA

Analog To Digital Converters (ADC) Overview

The MAX144BCPA is a low-power, 12-bit successive-approximation analog-to-digital converter (ADC) manufactured by Analog Devices Inc./Maxim Integrated. It operates on a single +2.7V to +5.25V supply and features two single-ended channels with a maximum sampling rate of 108ksps. The device includes an internal track-and-hold circuit, an on-chip clock, and a fast wake-up time of 2.5µs. Power consumption is 3.2mW at full speed, dropping to 0.2µA in shutdown mode. It utilizes a high-speed, 3-wire serial interface compatible with SPI, QSPI, and MICROWIRE protocols. The component is housed in an 8-pin Plastic DIP package and supports an operating temperature range from 0°C to +70°C.

Analog To Digital Converters (ADC) Feature Summary

• Single-supply operation within a wide voltage range
• Ultra-low power consumption with automatic shutdown capability
• Integrated track-and-hold stage for signal acquisition
• Flexible 3-wire serial interface supporting multiple protocols

Analog To Digital Converters (ADC) Applications

• Battery-powered systems
• Portable data logging equipment
• Isolated data acquisition modules
• Process-control monitoring circuits
• Medical instrumentation devices

Analog To Digital Converters (ADC) Procurement Notes

Verify the specific suffix 'CPA' corresponds to the 8-pin Plastic DIP package and the 'B' grade indicating ±1 LSB integral nonlinearity accuracy. Confirm the temperature range matches the commercial specification of 0°C to +70°C. Ensure the datasheet revision aligns with current manufacturing standards before finalizing procurement orders.

Analog To Digital Converters (ADC) Selection Notes

Select this component when a 12-bit resolution is required alongside minimal power usage in space-constrained designs. The MAX144 variant provides dual single-ended inputs suitable for multi-channel sensing. Consider the external reference requirement and source impedance limitations during system design to maintain specified linearity and bandwidth performance.

Analog To Digital Converters (ADC) Part Context

This part belongs to the MAX144/MAX145 family of serial ADCs. It shares architectural similarities with the MAX157 and MAX159, which offer pin-compatible 10-bit versions. The MAX144BCPA specifically denotes the commercial temperature grade and plastic DIP packaging, distinguishing it from the µMAX surface-mount or extended temperature variants within the same product series.

Analog To Digital Converters (ADC) Replacement Considerations

Pin-compatible alternatives include the MAX157 and MAX159, which provide 10-bit resolution. Verify that the reduced resolution meets application requirements before substitution. Other members of the MAX144 family with different suffixes may offer varying accuracy grades or temperature ranges but maintain identical pinouts.