REF192ES-REEL7

Overview

The REF192ES-REEL7 is a micropower, low dropout voltage reference from the Analog Devices REF19x series. It provides a nominal output voltage of 2.5 V with an initial accuracy of ±0.08%. The device features a maximum temperature coefficient of 5 ppm/°C and a supply current of 45 μA. It supports a maximum load current of 30 mA and operates within a temperature range of -40°C to +85°C.

Feature Summary

• Utilizes patented temperature drift curvature correction circuitry for high precision
• Includes a sleep mode function to reduce supply current below 15 μA
• Features short-circuit protection for enhanced reliability

Applications

• Portable instruments
• ADCs and DACs
• Smart sensors
• Solar powered applications
• Loop-current-powered instruments

Procurement Notes

Verify the specific suffix 'E' corresponds to the required electrical grade (±0.08% accuracy) and the '-REEL7' indicates tape and reel packaging. Confirm that the operating temperature range meets the application requirements of -40°C to +85°C. Ensure the input voltage remains within the specified limits to maintain regulation.

Selection Notes

Select this component when a stable 2.5 V reference with micropower consumption is required. The low dropout characteristic allows operation with minimal headroom above the output voltage. Consider the sleep pin functionality if power conservation during idle periods is critical for the system design.

Part Context

This part belongs to the REF19x series of precision band gap voltage references. The series offers various output voltages including 2.048 V, 3.00 V, and 4.50 V. The REF192 variant specifically targets the 2.5 V output requirement common in data conversion circuits.

FAQ

What is the purpose of Test Pins 1 and 5?

Test Pins 1 and 5 are factory test points reserved for in-package Zener zap trimming. They should be left unconnected by the user.

How does the device enter sleep mode?

Sleep mode is enabled by applying a low TTL or CMOS level to the SLEEP pin, which turns off the output and reduces supply current.