MAX1085BCSA+T

Analog To Digital Converters (ADC) Overview

The MAX1085BCSA+T is a 10-bit successive-approximation analog-to-digital converter (ADC) from Analog Devices/Maxim Integrated. It operates on a single +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 standards. Key electrical specifications include a relative accuracy (INL) of ±1 LSB, a differential nonlinearity (DNL) of ±1 LSB, and a typical supply current of 2.5mA during conversion. It is housed in an 8-pin SO package.

Analog To Digital Converters (ADC) Feature Summary

• Integrates a high-speed track/hold circuit and a precision internal voltage reference
• Features a 3-wire serial interface for direct connection to microprocessors without external logic
• Supports low-power operation with a dedicated shutdown mode to minimize current consumption

Analog To Digital Converters (ADC) Applications

• Portable data logging systems
• Battery-powered instrumentation
• Medical instruments
• Process control applications

Analog To Digital Converters (ADC) Procurement Notes

Verify the specific suffix 'T' indicates tape-and-reel packaging when sourcing components. Confirm that the 'B' grade meets the required linearity specifications for your application. Ensure the operating environment remains within the specified commercial temperature range of 0°C to +70°C for this package variant.

Analog To Digital Converters (ADC) Selection Notes

Select the MAX1085BCSA+T over the MAX1084 variant when system power constraints require a lower supply voltage between 2.7V and 3.6V. This model provides a 300ksps throughput suitable for moderate-speed data acquisition. Verify that the input signal source impedance is below 4kΩ to maintain optimal AC performance without additional buffering.

Analog To Digital Converters (ADC) Part Context

This component belongs to the MAX1084/MAX1085 family of low-power serial ADCs. It serves as a pin-compatible, higher-speed upgrade to the older MAX1242/MAX1243 series. The MAX1085 specifically targets single-supply applications requiring reduced power consumption compared to the 5V-only MAX1084.

Analog To Digital Converters (ADC) Replacement Considerations

The MAX1084BCSA+T is a functional alternative if the system supports a +4.5V to +5.5V supply voltage. Both devices share identical pinouts and serial interfaces, allowing for direct substitution provided the supply rail matches the selected part's requirements.