MAX6192CESA

Overview

The MAX6192CESA+ is a precision, micropower, low-dropout voltage reference providing a fixed 2.5V output. It features an initial accuracy of ±10mV and a maximum temperature coefficient of 25ppm/°C. The device draws a maximum quiescent supply current of 35µA and supports source/sink currents up to 500µA with a dropout voltage of approximately 100mV at full load. It operates within a supply voltage range of 2.7V to 12.6V and is housed in an 8-pin SO package.

Feature Summary

• Proprietary curvature-correction circuitry combined with laser-trimmed thin-film resistors ensures high initial accuracy and low temperature drift.
• Series-mode architecture delivers virtually constant supply current independent of input voltage variations, optimizing efficiency for battery-powered applications.
• Internally compensated design guarantees 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 'CESA+' against the manufacturer's official documentation to confirm lead-free/RoHS compliance status and exact electrical tolerances. Confirm that the required output voltage matches the fixed 2.5V specification. Ensure the input supply voltage remains above the minimum dropout threshold relative to the output voltage under all operating conditions.

Selection Notes

Select this component when a stable 2.5V reference is required with moderate accuracy (±10mV) and low power consumption. It is suitable for designs where board space is limited due to the elimination of mandatory output capacitors. Verify that the application load current does not exceed the 500µA sourcing or sinking limits to maintain specified regulation performance.

Part Context

This part belongs to the MAX6190–MAX6195/MAX6198 family of precision bandgap references manufactured by Analog Devices Inc./Maxim Integrated. The family shares common architectural features including micropower operation and low-dropout characteristics, differentiated primarily by their fixed output voltage levels and initial accuracy grades.

Replacement Considerations

Other members of the MAX619x family, such as MAX6192BESA+ or MAX6192AESA+, offer tighter accuracy or temperature coefficients but may require stricter supply constraints. Cross-referencing pinouts and thermal dissipation capabilities is necessary when substituting with different accuracy grades.

FAQ

Is an external output capacitor required for frequency stability?

No, the device is internally compensated and stable with capacitive loads ranging from 0 to 2.2nF. An external capacitor is optional and primarily used to improve transient response.

How does the supply current behave with respect to input voltage changes?

The quiescent supply current is virtually immune to input voltage variations, changing by only 0.8µA/V across the specified operating range.