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Product Detailed Parameters
- Description：IC VREF SERIES 0.12% 8SOIC
- Series：REF19
- Mfr：Analog Devices Inc.
- Package：Tube
- 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 REF198FSZ is a precision micropower voltage reference from the Analog Devices REF19x series, featuring a nominal output voltage of 4.096 V. It utilizes a patented temperature drift curvature correction circuit and laser trimming for high accuracy. The device operates with a maximum supply current of 45 μA and supports a maximum load current of 30 mA. It includes a sleep mode reducing current to under 15 μA and offers short-circuit protection. The component is specified over an industrial temperature range of -40°C to +85°C.
Feature Summary
- Features low dropout voltage capability allowing operation with minimal supply headroom.
- Includes a dedicated sleep pin for power reduction when the output is not required.
- Provides internal short-circuit protection for enhanced reliability.
- Utilizes thin-film resistors and curvature correction for stable performance.
Applications
- Portable instruments
- ADCs and DACs
- Smart sensors
- Solar powered applications
Procurement Notes
Verify the specific suffix 'FSZ' against the manufacturer's ordering guide to confirm tape and reel packaging and grade availability. Ensure the design accounts for the test pins (Pin 1 and Pin 5) which must remain unconnected to maintain factory-trimmed accuracy. Confirm RoHS compliance status through official documentation prior to procurement.
Selection Notes
Select this part when a stable 4.096 V reference is needed with low quiescent current consumption. Consider the REF19x series for applications requiring low dropout voltage and integrated sleep functionality. Evaluate the thermal resistance and package options if operating near the upper temperature limits or requiring higher power dissipation capabilities.
Part Context
The REF198FSZ belongs to the REF19x series of precision band gap voltage references manufactured by Analog Devices. This series is designed for micropower applications, offering various fixed output voltages including 2.048 V, 2.5 V, 3.0 V, 3.3 V, 4.096 V, 4.5 V, and 5.0 V. The components are available in multiple packages including SOIC, TSSOP, and PDIP.
Replacement Considerations
Check the REF19x series ordering guide for alternative grades or packages such as REF198GSZ or REF198PZ. Verify electrical specifications and package dimensions before substituting to ensure compatibility with existing board layouts and performance requirements.
