MAX1359BETL+

ADCs/DACs - Special Purpose Overview

The MAX1359BETL+ is a smart data-acquisition system (DAS) integrating a 16-bit sigma-delta ADC with system support functions. It operates on a single +1.8V to +3.6V supply, consuming 1.15mA in normal mode and 3µA in sleep mode. The device features dual 10:1 differential input multiplexers, a programmable-gain amplifier (PGA), two 10-bit force-sense DACs, an uncommitted op amp, analog switches, selectable voltage references, and an internal temperature sensor. Communication is handled via SPI/QSPI/MICROWIRE interfaces. It is housed in a 40-pin TQFN package and specified for the -40°C to +85°C extended temperature range.

ADCs/DACs - Special Purpose Feature Summary

• Multichannel 16-bit Sigma-Delta ADC with PGA gains of 1, 2, 4, or 8
• Integrated 10-bit Force-Sense DACs and uncommitted Op Amps
• Internal selectable voltage references (1.25V, 2.048V, 2.5V)
• System support including RTC, alarm register, and interrupt generator

ADCs/DACs - Special Purpose Applications

• Battery-Powered and Portable Devices
• Electrochemical and Optical Sensors
• Medical Instruments
• Industrial Control
• Data-Acquisition Systems

ADCs/DACs - Special Purpose Procurement Notes

Verify the ordering suffix ETL corresponds to the -40°C to +85°C extended temperature range and the 40-pin TQFN-EP package. Confirm RoHS compliance status as indicated by the '+' suffix. Ensure the specific revision of the datasheet matches the production lot requirements for interface timing and electrical characteristics.

ADCs/DACs - Special Purpose Selection Notes

Select this component when a high-resolution 16-bit ADC is required alongside integrated signal conditioning and system management. The built-in PGA reduces external circuitry needs for low-level signals. Verify that the available serial interface modes (SPI/QSPI/MICROWIRE) are compatible with the host microprocessor. Check power consumption constraints against the 1.15mA normal mode and 3µA sleep mode specifications.

ADCs/DACs - Special Purpose Part Context

This part belongs to the MAX1358B family of smart data-acquisition systems. The MAX1359B variant shares the same core architecture and functionality as the MAX1358B, providing a comprehensive solution for microprocessor-based systems by integrating ADC, DAC, and system support blocks into a single chip.

ADCs/DACs - Special Purpose Replacement Considerations

The MAX1358BETL+ is a direct functional equivalent within the same series. Verify pinout compatibility and ensure the replacement part supports the required extended temperature range (-40°C to +85°C) and package type (40-pin TQFN-EP).

ADCs/DACs - Special Purpose FAQ

What is the maximum conversion rate of the ADC?

The ADC supports a programmable conversion rate ranging from 10sps to 477sps.

Does the device include an internal voltage reference?

Yes, it includes selectable internal voltage references of 1.25V, 2.048V, and 2.5V.

What is the operating temperature range for the MAX1359BETL+?

The MAX1359BETL+ is specified for the extended temperature range of -40°C to +85°C.