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Product Detailed Parameters
- Description：IC VREF SERIES 0.5% 8SOIC
- Series：REF19
- Mfr：Analog Devices Inc.
- Package：Tape & Reel (TR),Cut Tape (CT)
- Output Type：Fixed
- Voltage - Output (Min/Fixed)：2.048V
- 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 REF191GSZ-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 2.048 V with a maximum initial accuracy of ±2 mV and a temperature coefficient of 5 ppm/°C. The device operates with a supply current of 45 μA and features a sleep mode reducing consumption to 15 μA. It supports a maximum load current of 30 mA and includes short-circuit protection.
Feature Summary
- Utilizes patented temperature drift curvature correction and laser trimming for high stability
- Features low dropout voltage capability for operation near supply limits
- Includes a dedicated sleep pin for significant power reduction
- Provides integrated short-circuit protection
Applications
- Portable instruments
- ADCs and DACs
- Smart sensors
- Solar powered applications
- Loop-current-powered instruments
Procurement Notes
Verify the specific electrical grade (E, F, or G) required for your application, as performance specifications vary between grades. Confirm that the REEL suffix matches your automated assembly requirements. Ensure the input voltage remains within the specified range to maintain regulation. Check for any recent Product Change Notifications regarding manufacturing updates.
Selection Notes
Select this component when a stable 2.048 V reference is needed with minimal power consumption. Consider the E grade for tighter accuracy and lower noise if budget permits. Verify that the SOIC package fits your PCB layout constraints. Ensure the operating temperature range aligns with your environmental conditions.
Part Context
This part belongs to the REF19x series of precision band gap voltage references. The series offers various fixed output voltages and packages, including SOIC, PDIP, and TSSOP. The GSZ suffix indicates the SOIC package and RoHS compliance. The REEL suffix denotes tape and reel packaging for surface mount assembly.
Replacement Considerations
Direct replacements include other parts from the REF19x series with different output voltages or grades. Cross-reference with REF191ESZ or REF191FSZ for alternative accuracy levels. Ensure any substitute maintains the same pinout and package dimensions.
