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Product Detailed Parameters
- Description：IC VREF SERIES 0.03% 8SOIC
- Series：-
- Mfr：Renesas Electronics Corporation
- Package：Tape & Reel (TR),Cut Tape (CT)
- Output Type：Fixed
- Voltage - Output (Min/Fixed)：1.25V
- Voltage - Output (Max)：-
- Current - Output：20 mA
- Operating Temperature：-40°C ~ 125°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 ISL21090BFB812Z-TK is a precision series voltage reference from the ISL21090 family, manufactured by Renesas Electronics. It provides a fixed output voltage of 1.25 V with an initial accuracy of ±0.03%. The device features a maximum temperature coefficient of 7 ppm/°C and supports a maximum input voltage of 36 V. It operates within a temperature range of -40°C to +125°C and is housed in an SOIC-8 package.
Feature Summary
- Ultra-low noise performance utilizing advanced bipolar technology
- High DC accuracy suitable for precision measurement applications
- Wide input voltage range capability for flexible system design
Applications
- High-end instrumentation systems
- Data acquisition and processing units
- Precision voltage sources for industrial control
- Communication infrastructure equipment
Procurement Notes
Verify the specific suffix TK indicates tape-and-reel packaging configuration when sourcing. Confirm RoHS compliance status matches current manufacturing standards. Ensure the SOIC-8 footprint aligns with PCB layout requirements. Cross-reference the manufacturer part number against official Renesas databases to validate authenticity and revision level before procurement.
Selection Notes
Select this component for applications requiring high stability and low noise in critical signal chains. The 1.25V output option offers optimal accuracy for specific ADC reference needs. Consider the 7ppm/°C drift specification for environments with significant thermal variations. Evaluate the 20mA sink/source capability against load requirements to ensure adequate drive strength without exceeding limits.
Part Context
This part belongs to the ISL21090 series of ultra-low noise precision voltage references. The family includes variants with different output voltages such as 2.5V, 5.0V, and 7.5V. All members share similar architectural benefits including sub-microvolt noise levels and high initial accuracy. The series is designed for demanding analog applications where reference stability is paramount.
Replacement Considerations
Direct substitutes include other ISL21090 variants like ISL21090BFB825Z for 2.5V outputs or ISL21090BFB850Z for 5.0V outputs if voltage adjustment is permissible. Verify pin compatibility and thermal characteristics when considering alternative manufacturers' precision references.
