MAX1085ACSA+T

Analog To Digital Converters (ADC) Overview

The MAX1085ACSA+T is a single-supply, low-power, serial 10-bit analog-to-digital converter (ADC) manufactured by Analog Devices Inc./Maxim Integrated. It operates from a +2.7V to +3.6V supply and achieves a sampling rate of 300ksps. The device integrates a high-bandwidth track/hold circuit, an internal +2.5V reference, and a 3-wire serial interface compatible with SPI/QSPI/MICROWIRE protocols. It features a successive-approximation register architecture within an 8-pin SO package.

Analog To Digital Converters (ADC) Feature Summary

• Integrates a high-bandwidth track/hold circuit for signal acquisition
• Includes an internal +2.5V voltage reference requiring minimal external components
• Supports 3-wire serial communication compatible with standard microprocessor interfaces
• Operates on a single low-voltage power supply suitable for battery-powered applications

Analog To Digital Converters (ADC) Applications

• Portable data logging systems
• General-purpose data acquisition circuits
• Medical instrumentation devices
• Battery-powered measurement instruments
• Pen digitizers and process control units

Analog To Digital Converters (ADC) Procurement Notes

Verify the component authenticity through official manufacturer channels or authorized distributors. Confirm that the ordering suffix matches the required temperature range and packaging specifications. Ensure compliance with RoHS standards as indicated by the plus sign in the part number. Cross-reference the datasheet revision to validate electrical characteristics against current production batches.

Analog To Digital Converters (ADC) Selection Notes

Select this model when a single-channel, 10-bit resolution ADC is required for low-power applications. Choose the MAX1085 variant specifically for systems operating between +2.7V and +3.6V, as opposed to the MAX1084 which requires +4.5V to +5.5V. Consider the 300ksps throughput limit and the need for an external serial clock source when designing the system architecture.

Analog To Digital Converters (ADC) Part Context

This component belongs to the MAX1084/MAX1085 family of serial ADCs. It serves as a higher-speed, pin-compatible upgrade to the older MAX1242/MAX1243 series. The MAX1085ACSA+T specifically denotes the commercial temperature grade (+0°C to +70°C) version packaged in an 8-pin Small Outline package.

Analog To Digital Converters (ADC) Replacement Considerations

The MAX1084ACSA+T is a pin-compatible alternative but requires a +4.5V to +5.5V supply. For direct replacement in low-voltage designs, verify that the supply rail meets the MAX1085's +2.7V to +3.6V requirement. No other specific substitute part numbers are documented in the provided source material.