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Product Detailed Parameters
- Description：IC VREF SERIES 0.05% 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 REF198ESZ-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 a maximum temperature coefficient of 5 ppm/°C and an initial accuracy of ±2 mV. The device features low dropout voltage operation, consuming a maximum supply current of 45 μA, which reduces to 15 μA in sleep mode. It supports a maximum load current of 30 mA and includes short-circuit protection.
Feature Summary
- Utilizes patented temperature drift curvature correction circuitry for high stability
- Features a dedicated SLEEP pin for reducing supply current via TTL or CMOS logic levels
- Incorporates laser trimming of thin-film resistors to achieve precise initial accuracy
- Provides built-in 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. Confirm the specific electrical grade (E, F, or G) required for your application, as performance specifications vary by grade. Ensure the 8-lead SOIC package matches your PCB footprint requirements before finalizing procurement.
Selection Notes
Select this component when a stable 4.096 V reference is needed with minimal power consumption. Consider the E, F, or G grades based on required temperature coefficient and accuracy tolerances. Verify that the input supply voltage remains within the specified range to maintain proper line regulation and dropout performance.
Part Context
This part belongs to the REF19x series of precision band gap voltage references manufactured by Analog Devices. The series offers various fixed output voltages including 2.048 V, 2.5 V, 3.0 V, 3.3 V, 4.5 V, and 5.0 V. All variants share similar micropower characteristics and low dropout capabilities.
Replacement Considerations
Other members of the REF19x series such as REF191, REF192, REF193, REF194, REF195, and REF196 offer different nominal output voltages but share the same package and general functionality.
