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Product Detailed Parameters
- Description：IC VREF SERIES 0.1% 8SOIC
- Series：REF19
- Mfr：Analog Devices Inc.
- Package：Tube,Tube
- Output Type：Fixed
- Voltage - Output (Min/Fixed)：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 REF195FS is a precision micropower, low dropout voltage reference from the Analog Devices REF19x series. It provides a nominal output voltage of 5.0 V with an initial accuracy of ±2 mV maximum and a temperature coefficient of 5 ppm/°C maximum. The device operates with a supply current of 45 μA maximum and features a sleep mode reducing consumption to 15 μA maximum. It supports a high output current of 30 mA and includes short-circuit protection.
Feature Summary
- Utilizes patented temperature drift curvature correction circuit and laser trimming for high accuracy
- Features a dedicated SLEEP pin for power reduction via TTL or CMOS logic levels
- Includes internal short-circuit protection for output safety
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 by grade. Confirm package availability, noting that PDIP and TSSOP packages are restricted to the lowest electrical grade. Ensure proper bypassing with a 1 μF capacitor between the output and ground pins for stable operation.
Selection Notes
Select the REF195FS based on the required accuracy and temperature stability. The E grade offers the highest precision with lower noise and tighter regulation limits compared to F and G grades. Consider the operating temperature range; while specified for -40°C to +85°C, typical performance extends to +125°C for automotive applications. Evaluate the need for the sleep function if power conservation is critical.
Part Context
The REF195FS belongs to the REF19x series of precision band gap voltage references. This family is designed for applications requiring stable voltage references with minimal power consumption. The 'FS' suffix indicates a specific package and reel configuration within the broader REF195 product line, which is available in various output voltages ranging from 2.048 V to 4.5 V.
Replacement Considerations
Other members of the REF19x series, such as REF195GSZ or REF195ES, may serve as alternatives depending on the required electrical grade and package type. Verify that any substitute matches the necessary accuracy, temperature coefficient, and package dimensions.
