MAX6193AESA+T

Overview

The MAX6193AESA+T is a precision, micropower, low-dropout voltage reference from the MAX6190–MAX6195/MAX6198 series. It provides a nominal output voltage of 3.000V with an initial accuracy of ±5mV and a maximum temperature coefficient of <10ppm/°C. The device operates within a supply voltage range of 3.2V to 12.6V and draws a maximum quiescent current of 35µA. It features internally compensated circuitry for stability with capacitive loads up to 2.2nF and supports source/sink currents up to 500µA. Packaged in an 8-pin SOIC, it 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 in battery-powered applications.
• Internally compensated design guarantees stability with capacitive loads ranging from 0 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 'T' indicates tape-and-reel packaging when sourcing. Confirm the 'A' grade designation matches the required ±5mV initial accuracy specification. Ensure the '+T' suffix aligns with lead-free/RoHS compliance requirements for your assembly process. Cross-reference the manufacturer's latest datasheet revision to confirm pinout and electrical characteristics remain unchanged.

Selection Notes

Select this component when a stable 3V reference is needed with minimal power consumption. The low dropout characteristic allows operation close to the output voltage, suitable for single-supply systems. Verify that the load current requirements do not exceed the 500µA sourcing or sinking limits. Consider the package size if board space is constrained, as the 8-pin SOIC offers a compact footprint.

Part Context

This part belongs to the Maxim Integrated MAX619x family of precision voltage references. The family shares common internal architectures but varies by output voltage and accuracy grades (A, B, C). The MAX6193 specifically targets the 3V output requirement. Other members include MAX6190 (1.25V), MAX6191 (2.048V), MAX6192 (2.5V), MAX6194 (4.5V), MAX6195 (5V), and MAX6198 (4.096V).

Replacement Considerations

Direct functional substitutes within the same family include MAX6193BESA+T (±2mV accuracy) and MAX6193CESA+T (±10mV accuracy). Verify that any replacement maintains the 8-pin SOIC package and compatible thermal performance. Check if automotive qualification (/V suffix) is required for the target application environment.