MAX1270BCNG+

ADCs/DACs - Special Purpose Overview

The MAX1270BCNG+ is a multirange, 12-bit data-acquisition system (DAS) from Analog Devices/Maxim Integrated. It operates on a single +5V supply while accepting analog input signals spanning above the rail and below ground. The device features eight independently programmable analog channels with software-selectable ranges: ±10V, ±5V, 0 to +10V, and 0 to +5V for the MAX1270 variant. It provides a throughput rate of 110ksps, a 5MHz bandwidth track/hold, and fault protection up to ±16.5V. The component utilizes a serial interface compatible with SPI/QSPI and MICROWIRE protocols and is housed in a 24-pin narrow PDIP package.

ADCs/DACs - Special Purpose Feature Summary

• 12-Bit Resolution with ±1 LSB Integral Nonlinearity
• +5V Single-Supply Operation with Overvoltage-Tolerant Inputs (±16.5V)
• Eight Analog Input Channels with Software-Selectable Ranges
• 110ksps Sampling Rate with Internal or External Clock Options

ADCs/DACs - Special Purpose Applications

• Industrial Control Systems
• Data-Acquisition Systems
• Battery-Powered Instruments
• Automatic Testing Equipment
• Medical Instruments

ADCs/DACs - Special Purpose Procurement Notes

Verify the specific suffix 'C' indicates the commercial temperature range (0°C to +70°C) and 'B' denotes ±1 LSB INL accuracy. Confirm the 'NG+' suffix corresponds to the 24-pin narrow PDIP package and lead-free compliance. Cross-reference the manufacturer's current production status as availability may be limited.

ADCs/DACs - Special Purpose Selection Notes

Select this part when interfacing sensors requiring direct connection to a single +5V system without level shifting. Ensure the application requires 8-channel multiplexing with independent range programming. Verify that the serial interface timing aligns with the host microcontroller's SPI or MICROWIRE configuration. Consider the internal reference stability if external precision references are not available.

ADCs/DACs - Special Purpose Part Context

This component belongs to the MAX1270/MAX1271 family of multirange ADCs. The MAX1270 variant supports fixed voltage ranges (±10V, ±5V, etc.), whereas the MAX1271 uses reference-dependent ranges. The BCNG+ designation specifies the B-grade accuracy, commercial temperature range, and through-hole packaging. It serves as a high-density solution for replacing multiple discrete signal conditioning and conversion stages.

ADCs/DACs - Special Purpose Replacement Considerations

Publicly confirmed substitute part numbers are not provided in the source material.