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Product Detailed Parameters
- Description：IC VREF SERIES 0.1% 8SOIC
- Series：-
- Mfr：Microchip Technology
- Package：Tape & Reel (TR),Cut Tape (CT)
- Output Type：Fixed
- Voltage - Output (Min/Fixed)：2.5V
- 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 MCP1501T-25E/SN is a buffered voltage reference with a fixed output of 2.5V and an initial accuracy of ±0.1%. It operates within an input voltage range of 2.7V to 5.5V and supports a maximum load current of ±20mA. The device features a typical operating current of 140μA and a maximum temperature coefficient of 50ppm/°C across the -40°C to +125°C range. Line regulation is specified at 50ppm/V, and it utilizes an 8-Lead SOIC package.
Feature Summary
- Utilizes chopper-based amplifiers to reduce drift and offset for high precision
- Capable of sourcing and sinking up to 20mA of load current
- Includes a dedicated shutdown pin for low-power control
Applications
- Precision data acquisition systems
- High-resolution data converters
- Medical equipment applications
Procurement Notes
Verify the specific suffix 'SN' corresponds to the 8-Lead SOIC package configuration. Confirm that the 'T' designation indicates tape and reel packaging rather than tube. Ensure the 'E' grade matches the required industrial temperature range specifications for your design environment.
Selection Notes
Select this component when a stable 2.5V reference with high drive capability is required. The buffered architecture allows direct connection to ADCs or DACs without external buffering. Consider the thermal resistance of the SOIC package if significant power dissipation occurs under heavy loads.
Part Context
This part belongs to the MCP1501 family of high-precision buffered voltage references from Microchip Technology. The family offers various fixed output voltages including 1.024V, 3.3V, and 4.096V. The T-25 variant specifically provides the 2.5V nominal output level required by many standard analog interfaces.
Replacement Considerations
MCP1501-25E/SN (Tube version)
FAQ
How does the feedback pin function in the SOIC package?
In the 8-Lead SOIC package, the FEEDBACK pin must be connected to the OUT pin at the device. This allows the feedback loop to compensate for any IR-drop caused by PCB trace resistance between the device and the load.
What is the purpose of the SHDN pin?
The SHDN pin is a digital input that places the device into a Shutdown state when driven low. In this state, the output driver and feedback are tristated, resulting in no output voltage.
