MAX6195BESA+T

Overview

The MAX6195BESA+T is a precision, micropower, low-dropout series-mode voltage reference manufactured by Analog Devices (Maxim Integrated). It provides a nominal output voltage of 5.000V with an initial accuracy of ±5mV and a maximum temperature coefficient of 5ppm/°C. The device operates within a supply voltage range of VOUT + 0.2V to 12.6V and draws a maximum quiescent current of 35µA. It supports source and sink currents up to 500µA with guaranteed load regulation. The component is housed in an 8-pin SO package and functions reliably across an operating temperature range of -40°C to +85°C.

Feature Summary

• Proprietary curvature-correction circuit combined with laser-trimmed thin-film resistors ensures high initial accuracy and very low temperature drift.
• Series-mode architecture delivers virtually constant supply current independent of input voltage variations, maximizing efficiency for battery-powered applications.
• Internally compensated design allows stability with capacitive loads up to 2.2nF without requiring external compensation components.

Applications

• Hand-held instruments
• Analog-to-Digital and Digital-to-Analog Converters
• Industrial Process Control
• Precision 3V/5V Systems
• Hard-Disk Drives

Procurement Notes

Verify the specific suffix 'B' corresponds to the required ±5mV initial accuracy specification before procurement. Confirm that the '+T' designation indicates tape-and-reel packaging if reel handling is required for assembly. Ensure the input voltage source can provide transient currents exceeding the nominal 35µA during turn-on to guarantee reliable startup under minimum dropout conditions.

Selection Notes

Select this part when a stable 5V reference is needed with minimal power consumption. The series-mode topology is preferred over shunt references to avoid wasting current through series biasing resistors. Verify that the application load does not exceed the 500µA sourcing or sinking capability. Consider the 2.2nF capacitive load limit if driving long cables or specific filter networks directly from the output pin.

Part Context

This component belongs to the MAX6190–MAX6195/MAX6198 family of precision voltage references. The family shares identical internal architectures and performance characteristics, differing primarily in their laser-trimmed output voltage levels. The MAX6195 specifically targets the 5V nominal output requirement within this lineup.

Replacement Considerations

Other members of the MAX619x family (e.g., MAX6190–MAX6194, MAX6198) are pin-compatible but offer different output voltages. Direct substitution requires matching the specific output voltage tolerance and temperature coefficient requirements of the target circuit.