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MAX1271BCAI+T is listed in the ADCs/DACs - Special Purpose range at ChipApex. The manufacturer field lists Analog Devices Inc./Maxim Integrated. Its product description is IC DAS/ADC 12BIT 110K 28SSOP. Review the specifications below when checking this part for your BOM.
The MAX1271BCAI+T is a multirange, 12-bit data-acquisition system (DAS) operating from a single +5V supply. It features eight analog input channels with software-selectable ranges including ±VREF, ±VREF/2, 0 to VREF, and 0 to VREF/2. The device provides a throughput rate of 110ksps with a 5MHz bandwidth track/hold circuit. It includes fault protection up to ±16.5V on all inputs. The serial interface supports SPI/QSPI and MICROWIRE protocols. Integral nonlinearity is specified at ±1 LSB for the B-grade device.
Verify the component designation matches the specific grade suffix 'B' which indicates ±1 LSB integral nonlinearity. Confirm the package type is SSOP-28 as indicated by the 'AI' suffix in the part number. Ensure the ordering suffix '+T' corresponds to the reel packaging format required for the assembly process.
Select this model when an 8-channel ADC with multirange capability is required for direct interfacing with sensors spanning various voltage levels without external scaling circuits. The internal reference simplifies design if external precision references are not available. Verify that the serial interface timing requirements align with the host microcontroller's SPI or MICROWIRE configuration.
This component belongs to the MAX1270/MAX1271 family of multirange, +5V, 8-channel, serial 12-bit ADCs. The MAX1271 variant specifically offers programmable ranges based on the reference voltage (±VREF, ±VREF/2, 0 to VREF, 0 to VREF/2), distinguishing it from the MAX1270 which uses fixed voltage ranges.
Public confirmed substitute part numbers are not provided in the source material.
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