MAX1414CAI+T

ADCs/DACs - Special Purpose Overview

The MAX1414CAI+T is a low-power, general-purpose multichannel data-acquisition system (DAS) from Analog Devices Inc./Maxim Integrated. It integrates a differential 8:1 input multiplexer to a 16-bit sigma-delta ADC, two 10-bit force/sense DACs, and four auxiliary analog inputs. The device operates on a single +2.7V to +3.6V supply, consuming 1.15mA in Run mode and 2.5µA in Sleep mode. Key features include a programmable three-state digital output, signal-detect comparator with a 50mV trip threshold, RTC, and SPI/QSPI/MICROWIRE-compatible serial interface. It is housed in a 28-pin SSOP package.

ADCs/DACs - Special Purpose Feature Summary

• 16-Bit Sigma-Delta ADC with 30Hz or 60Hz continuous conversion rates and gains of +1/3, +1, or +2 V/V
• Two 10-bit Force/Sense DACs with buffered 1.25V bandgap reference output
• Signal-detect comparator with a 50mV trip threshold for the MAX1414 variant
• Integrated Real-Time Clock (RTC) valid until 9999 and high-frequency PLL clock output at 2.4576MHz

ADCs/DACs - Special Purpose Applications

• Medical Instruments
• Industrial Control Systems
• Portable Equipment
• Data-Acquisition System
• Automatic Testing

ADCs/DACs - Special Purpose Procurement Notes

Verify that the ordering suffix '+T' corresponds to tape-and-reel packaging as specified in the manufacturer's documentation. Confirm the 'CAI' designation indicates the commercial temperature range of 0°C to +70°C and the 28-pin SSOP package. Ensure compatibility with the specific serial interface requirements (SPI/QSPI or MICROWIRE) before procurement.

ADCs/DACs - Special Purpose Selection Notes

Select the MAX1414CAI+T when a higher signal-detect comparator threshold of 50mV is required compared to the 0mV threshold found in the MAX1407. This part includes two 10-bit force/sense DACs and four auxiliary analog inputs, distinguishing it from the MAX1408 which has eight auxiliary inputs but no DACs. Ensure the application supports the 2.7V to 3.6V supply voltage range.

ADCs/DACs - Special Purpose Part Context

The MAX1414 is part of the MAX1407/MAX1408/MAX1409/MAX1414 family of low-power DAS devices. While sharing core functionalities like the 16-bit ADC and RTC, the MAX1414 is distinct due to its specific comparator threshold and inclusion of dual 10-bit DACs. It serves as a specialized variant within the 28-pin SSOP package lineup designed for battery-powered and space-constrained applications.

ADCs/DACs - Special Purpose Replacement Considerations

The MAX1407CAI+T is a pin-compatible alternative within the same family but features a 0mV signal-detect comparator threshold instead of the 50mV threshold present in the MAX1414. Both parts share the same package and core ADC/DAC specifications.