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Product Detailed Parameters
- Description：IC DGTL POT OTP 50K SOT23-8
- Series：-
- Mfr：Analog Devices Inc.
- Package：Bulk
- Taper：Logarithmic
- Configuration：-
- Number of Circuits：1
- Number of Taps：64
- Resistance (Ohms)：50k
- Interface：I2C
- Memory Type：Non-Volatile
- Voltage - Supply：2.7V ~ 5.5V
- Features：-
- Tolerance：-
- Temperature Coefficient (Typ)：35ppm/°C
- Mounting Type：Surface Mount
- Supplier Device Package：SOT-23-8
- Package / Case：SOT-23-8
- Operating Temperature：-40°C ~ 125°C
- Resistance - Wiper (Ohms) (Typ)：-
- Grade：-
- Qualification：-
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Overview
The AD5171BRJ50-RL7 is a 64-position, one-time programmable (OTP) digital potentiometer from Analog Devices. It features a 50 kΩ end-to-end resistance with ±30% tolerance and a 35 ppm/°C temperature coefficient in rheostat mode. The device operates on a 2.7 V to 5.5 V supply with a maximum current of 10 μA. It utilizes an I²C-compatible interface for control and includes an extra address pin (AD0). The component is housed in an 8-lead SOT-23 package and supports an automotive temperature range of −40°C to +125°C.
Feature Summary
- One-time programmable (OTP) fuse link technology for permanent resistance setting
- I²C-compatible digital interface with full read/write wiper register access
- Automotive qualified operating temperature range: −40°C to +125°C
- Compact 8-lead SOT-23 surface mount package
Applications
- System calibrations requiring fixed resistance values
- Mechanical trimmer and potentiometer replacements
- Automotive electronics adjustments
- Gain control and offset adjustments in transducer circuits
Procurement Notes
Verify the specific ordering suffix 'RL7' against official documentation to confirm reel packaging specifications. Confirm that the OTP programming voltage requirements (4.75 V to 5.25 V) are supported by the target system design prior to deployment.
Selection Notes
Select this component when a non-volatile, factory-set resistance value is required without external EEPROM. Ensure the 50 kΩ nominal resistance aligns with circuit impedance needs. Verify that the I²C bus speed does not exceed 400 kHz and that the power supply can provide the necessary current during the OTP activation phase if programming is performed in-system.
Part Context
This part belongs to the AD5171 family of 6-bit digital potentiometers. The 'BRJ' designation indicates the automotive grade and SOT-23 package, while '50' specifies the 50 kΩ resistance value. The 'RL7' suffix typically denotes tape and reel packaging for automated assembly.
Replacement Considerations
Direct substitutes within the same OTP family include other AD5171 variants with different resistance values or packages, such as AD5171BRJ100-R2. Cross-family replacements like the AD5170 require verification of interface compatibility and memory type differences.
