MAX146BCPP

Analog To Digital Converters (ADC) Overview

The MAX146BCPP+ is a 12-bit successive-approximation analog-to-digital converter (ADC) featuring an 8-channel multiplexer and track/hold circuitry. It operates from a single +2.7V to +3.6V supply with an internal 2.5V reference. The device supports SPI, QSPI, Microwire, and TMS320-compatible serial interfaces. Key electrical parameters include a resolution of 12 bits, a sampling rate up to 133ksps, and INL/DNL specifications of ±0.5LSB/±1LSB for the BC grade. It offers software-configurable unipolar/bipolar and single-ended/differential inputs within a 20-pin PDIP package.

Analog To Digital Converters (ADC) Feature Summary

• Integrates an 8-channel analog multiplexer with high-bandwidth track/hold circuitry for efficient data acquisition.
• Features a flexible 4-wire serial interface compatible with standard microprocessor protocols without external logic.
• Includes an internal 2.5V reference voltage source with a buffer amplifier offering adjustable output range.
• Supports rapid power-down modes to minimize current consumption in battery-operated applications.

Analog To Digital Converters (ADC) Applications

• Portable data logging systems
• Medical instrumentation
• Battery-powered instruments
• Process control systems

Analog To Digital Converters (ADC) Procurement Notes

Verify component authenticity through authorized distributors or manufacturer channels. Confirm the specific suffix indicates the BC accuracy grade and PDIP package variant. Check for RoHS compliance status and ensure the part meets the required temperature range specifications for the intended environment.

Analog To Digital Converters (ADC) Selection Notes

Select this model when a low-power, 12-bit ADC with multiple analog inputs is required. Ensure the system voltage remains within the +2.7V to +3.6V range. Verify that the serial interface timing matches the host controller's capabilities. Consider the BC grade accuracy if tighter linearity specifications are necessary compared to the AC grade.

Analog To Digital Converters (ADC) Part Context

This component belongs to the MAX146/MAX147 family of low-power, serial 12-bit ADCs. The MAX146 variant is distinguished by its internal reference and lower maximum supply voltage compared to the MAX147. The BC suffix denotes a specific accuracy grade and plastic DIP packaging configuration within this product line.

Analog To Digital Converters (ADC) Replacement Considerations

Direct replacements include other grades within the same series such as MAX146ACPP+ or MAX146AEPP+. Verify pin compatibility and electrical specifications before substitution. Note that the MAX147 requires an external reference, which may necessitate circuit modifications if used as a replacement.