MAX1241BESA+T

Analog To Digital Converters (ADC) Overview

The MAX1241BESA+T is a low-power, 12-bit successive-approximation analog-to-digital converter (ADC) housed in an 8-pin SO package. It operates on a single supply voltage ranging from +2.7V to +5.25V and achieves a maximum sampling rate of 73ksps with a conversion time of 7.5µs. The device features a fast track/hold circuit with a 1.5µs acquisition time and requires an external reference voltage at the REF pin. Power consumption is 3mW at full speed and drops to 5µW in shutdown mode. It utilizes a high-speed, 3-wire serial interface compatible with SPI, QSPI, and MICROWIRE standards.

Analog To Digital Converters (ADC) Feature Summary

• Requires external reference voltage input for flexible system configuration
• Operates on a single power supply ranging from +2.7V to +5.25V
• Features a three-level shutdown input to minimize power consumption
• Includes an internal track/hold circuit for signal acquisition

Analog To Digital Converters (ADC) Applications

• Battery-powered systems
• Portable data logging
• Isolated data acquisition
• Process control
• Instrumentation

Analog To Digital Converters (ADC) Procurement Notes

Verify that the component matches the exact part number MAX1241BESA+T, specifically confirming the 'E' suffix indicates the -40°C to +85°C temperature range and the '+T' suffix denotes tape-and-reel packaging. Ensure the supplier provides valid traceability documentation and confirms RoHS compliance status prior to purchase.

Analog To Digital Converters (ADC) Selection Notes

Select this component when an external reference voltage is preferred over an internal one. It is suitable for applications requiring operation up to +5.25V, unlike the MAX1240 which is limited to +3.6V. Consider the 12-bit resolution and 73ksps throughput against specific accuracy and speed requirements.

Analog To Digital Converters (ADC) Part Context

This device belongs to the MAX1240/MAX1241 family of low-power, 12-bit serial ADCs. While the MAX1240 integrates a 2.5V reference, the MAX1241 variant relies on an external reference source. Both share identical SAR architecture, package options, and serial interface protocols within the same product line.

Analog To Digital Converters (ADC) Replacement Considerations

MAX1240AEPA+T: Requires internal reference; limited to 3.6V supply.

Analog To Digital Converters (ADC) FAQ

Does the MAX1241BESA+T include an internal voltage reference?

No, the MAX1241 requires an external reference voltage applied to the REF pin.

What is the maximum clock frequency for the serial interface?

The SCLK can operate at frequencies up to 2.1MHz.

How does the SHDN pin affect the device operation?

Pulling SHDN low shuts down the device to reduce current consumption, while leaving it high or unconnected maintains normal operational mode.