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Product Detailed Parameters
- Description：IC VREF SERIES 0.05% 8MSOP
- Series：-
- Mfr：Analog Devices Inc.
- Package：Tube
- Output Type：Fixed
- Voltage - Output (Min/Fixed)：3.3V
- Voltage - Output (Max)：-
- Current - Output：5 mA
- Operating Temperature：-40°C ~ 125°C (TA)
- Mounting Type：Surface Mount
- Package / Case：8-TSSOP, 8-MSOP (0.118", 3.00mm Width)
- Supplier Device Package：8-MSOP
- Grade：-
- Qualification：-
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Overview
The Analog Devices LTC6655CHMS8-3.3#PBF is a precision bandgap voltage reference delivering a fixed 3.3V output with ±0.025% initial accuracy and a maximum temperature coefficient of 2ppm/°C. It operates from a supply voltage ranging from VOUT + 0.5V to 13.2V, consuming 7mA typical current. The device features low noise performance of 0.25ppm peak-to-peak (0.1Hz to 10Hz) and supports ±5mA source/sink currents. Packaged in an 8-lead MSOP, it is fully specified over the –40°C to 125°C range.
Feature Summary
- Advanced curvature compensation ensures predictable temperature characteristics and high accuracy without calibration.
- Superior load regulation and line rejection maintain consistent performance across wide operating conditions.
- Low power shutdown mode reduces consumption to under 20µA for energy-efficient applications.
Applications
- Instrumentation and test equipment
- High resolution data acquisition systems
- Precision battery monitors
Procurement Notes
Verify the specific suffix against official documentation to confirm package type and temperature grade. Confirm availability status as distribution channels may list limited stock or special order requirements. Ensure the ordering code matches the required electrical specifications before procurement.
Selection Notes
Select this part for applications requiring minimal drift and high accuracy over wide temperature ranges. Consider the MSOP package for standard surface mount assembly. Evaluate the need for external capacitors to optimize stability and noise performance based on specific circuit constraints.
Part Context
This component belongs to the LTC6655 family of precision references designed for demanding automotive and industrial environments. The CH designation indicates a specific accuracy grade within the series, offering tighter tolerances compared to lower grades.
Replacement Considerations
LTC6655BHMS8-3.3#PBF offers similar functionality with slightly relaxed accuracy specifications.
FAQ
What is the minimum dropout voltage for this reference?
The minimum dropout voltage is 500mV above the output voltage when sourcing current.
How does the shutdown pin function?
Tying the SHDN pin to ground activates shutdown mode, reducing supply current to less than 20µA. An internal pull-up enables normal operation if left unconnected.
