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Product Detailed Parameters
- Description：IC VREF SERIES 0.4% 8SOIC
- Series：REF19
- Mfr：Analog Devices Inc.
- Package：Tube
- Output Type：Fixed
- Voltage - Output (Min/Fixed)：2.5V
- Voltage - Output (Max)：-
- Current - Output：30 mA
- Operating Temperature：-40°C ~ 85°C (TA)
- Mounting Type：Surface Mount
- Package / Case：8-SOIC (0.154", 3.90mm Width)
- Supplier Device Package：8-SOIC
- Grade：-
- Qualification：-
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Overview
The REF192GSZ is a micropower, low dropout voltage reference from the Analog Devices REF19x series. It provides a fixed nominal output voltage of 2.5 V with an initial accuracy of ±0.4%. The device operates within a supply voltage range of 3 V to 15 V and delivers a maximum output current of 30 mA while consuming only 45 μA of supply current. It features a temperature coefficient of 25 ppm/°C over the industrial temperature range of -40°C to +85°C. The component is housed in an 8-lead SOIC package.
Feature Summary
- Utilizes patented temperature drift curvature correction circuitry for high stability
- Includes short-circuit protection for enhanced reliability
- Features a dedicated sleep mode pin to minimize power consumption
Applications
- Portable instrumentation
- Analog-to-digital converters (ADCs)
- Digital-to-analog converters (DACs)
- Smart sensors
- Loop-current-powered instruments
Procurement Notes
Verify the specific electrical grade (E, F, or G) required for your application, as performance specifications vary by grade. Confirm that the 8-lead SOIC package matches your PCB footprint. Ensure the input supply voltage remains within the specified 3 V to 15 V range during operation. Check for any recent Product Change Notifications regarding manufacturing site updates.
Selection Notes
Select this component when a stable 2.5 V reference is needed with minimal quiescent current. Consider the REF19x series if low dropout voltage characteristics are critical for battery-operated systems. Evaluate the available electrical grades to balance cost against precision requirements. Ensure the operating temperature range aligns with your environmental conditions.
Part Context
The REF192GSZ belongs to the REF19x family of precision band gap voltage references. This series is characterized by laser trimming of thin-film resistors to achieve low temperature coefficients. The GSZ suffix indicates the 8-lead SOIC package variant. Other members of the series offer different nominal output voltages such as 2.048 V, 3.0 V, and 5.0 V.
Replacement Considerations
Direct substitutes include other REF192 variants with different packages, such as REF192GRUZ (TSSOP). Cross-referencing electrical grades is necessary when replacing with similar parts from other manufacturers to ensure compatibility with line and load regulation requirements.
FAQ
What is the function of Pins 1 and 5 on the REF192GSZ?
Pins 1 and 5 are Test Pins (TP) reserved for factory Zener zap trimming. They should be left unconnected by the user.
How does the REF192GSZ operate in 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 to less than 15 μA.
