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Product Detailed Parameters
- Description：IC VREF SERIES 0.24% 8SOIC
- Series：REF19
- Mfr：Analog Devices Inc.
- Package：Tape & Reel (TR),Cut Tape (CT)
- Output Type：Fixed
- Voltage - Output (Min/Fixed)：4.096V
- 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 REF198GSZ-REEL is a precision micropower voltage reference from the Analog Devices REF19x series, housed in an 8-lead SOIC package. It provides a nominal output voltage of 4.096 V with an initial accuracy of ±0.05%. The device features a maximum temperature coefficient of 25 ppm/°C and supports a maximum input voltage of 18 V. It operates within a temperature range of -40°C to +85°C, drawing a maximum supply current of 45 μA and delivering up to 30 mA of load current.
Feature Summary
- Utilizes patented temperature drift curvature correction circuitry for high stability
- Includes a dedicated sleep mode pin for significant power reduction
- Features integrated short-circuit protection for robust operation
Applications
- Portable instruments
- ADCs and DACs
- Smart sensors
- Solar powered applications
- Loop-current-powered instruments
Procurement Notes
Verify that the REEL suffix indicates tape-and-reel packaging rather than tube packaging when sourcing components. Confirm the specific electrical grade matches design requirements, as performance specifications vary between grades. Ensure the SOIC-8 footprint aligns with the target PCB layout before finalizing procurement orders.
Selection Notes
Select this component for designs requiring low quiescent current and precise voltage regulation. The REF198 variant is suitable for systems needing a 4.096 V reference. Consider the available electrical grades if tighter accuracy or lower temperature coefficients are required beyond the standard specifications provided.
Part Context
This part belongs to the REF19x series of precision band gap voltage references manufactured by Analog Devices. The series utilizes laser trimming of thin-film resistors to achieve low temperature coefficients. The GSZ suffix denotes the 8-lead SOIC package configuration used for surface-mount assembly.
Replacement Considerations
REF198GSZ
FAQ
What is the function of Test Pins 1 and 5?
Test Pins 1 and 5 are factory test points reserved for in-package Zener zapping during manufacturing. They should be left unconnected by the user.
How does the device 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.
