MAX1148BCUP+

Analog To Digital Converters (ADC) Overview

The MAX1148BCUP+ is a low-power, 14-bit multichannel analog-to-digital converter (ADC) from the Maxim Integrated MAX1146–MAX1149 family. It features an internal track/hold circuit, voltage reference, and clock, operating from a single +4.75V to +5.25V supply with an integrated +4.096V reference. The device provides eight single-ended or four differential input channels via a software-configurable multiplexer. It utilizes a successive-approximation architecture with a throughput rate of up to 116ksps using an external 2.1MHz serial clock. The component communicates through a 4-wire serial interface compatible with SPI/QSPI/MICROWIRE standards and includes hardware shutdown and two software power-down modes for optimized energy consumption.

Analog To Digital Converters (ADC) Feature Summary

• Software-configurable analog inputs supporting unipolar/bipolar and single-ended/differential operation
• Integrated track/hold circuitry and internal voltage reference
• Flexible 4-wire serial interface compatible with standard digital protocols
• Multiple power management modes including hardware shutdown and fast power-down

Analog To Digital Converters (ADC) Applications

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

Analog To Digital Converters (ADC) Procurement Notes

Verify the specific suffix 'CUP+' against the manufacturer's official documentation to confirm the package type, temperature range, and lead-free status. Ensure the ordering code matches the exact pin configuration and electrical specifications required for the design. Cross-reference the datasheet revision date to validate current manufacturing status and availability constraints.

Analog To Digital Converters (ADC) Selection Notes

Select this component when a 14-bit resolution and high channel count are required in a compact surface-mount package. The internal reference simplifies board layout by reducing external component count. Consider the 116ksps sampling rate and serial interface speed when designing the host microcontroller timing. Verify that the single-supply voltage range aligns with the system power architecture.

Analog To Digital Converters (ADC) Part Context

This part belongs to the MAX1146–MAX1149 series of true-differential, serial, 14-bit ADCs. The MAX1148 variant specifically offers eight input channels and operates on a 5V supply, distinguishing it from the four-channel MAX1146 which shares the same voltage domain. The BCUP+ designation indicates a commercial temperature range and TSSOP packaging within this product line.

Analog To Digital Converters (ADC) Replacement Considerations

The MAX1146BCUP+ serves as a functional substitute within the same family, offering identical electrical characteristics but with four input channels instead of eight. Both devices share the same package, supply voltage requirements, and serial interface protocol.