AD5245BRJZ5-R2

Digital Potentiometers Overview

The AD5245BRJZ5-R2 is a single-channel, 8-bit digital potentiometer from Analog Devices. It provides 256 adjustable positions with a nominal end-to-end resistance of 5 kΩ and a tolerance of ±30%. The device operates on a single supply voltage ranging from 2.7 V to 5.5 V, consuming a typical supply current of 8 µA. It features an I²C-compatible serial interface for full read/write access to the wiper register. Key electrical characteristics include a maximum temperature coefficient of 45 ppm/°C, a typical power-up settling time of 1 µs, and a wide operating temperature range from –40°C to +125°C.

Digital Potentiometers Feature Summary

• 256-position adjustment with 5 kΩ nominal resistance
• I²C-compatible 2-wire serial interface with programmable address bit (AD0)
• Power-on preset to midscale position
• Low power consumption: 8 µA typical supply current

Digital Potentiometers Applications

• Mechanical potentiometer replacement in new designs
• LCD panel VCOM adjustment
• Gain control and offset adjustment
• Transducer adjustment for pressure, temperature, or optical sensors

Digital Potentiometers Procurement Notes

Verify the specific suffix R2 against official documentation to confirm packaging quantity and reel specifications. Ensure compatibility with the required I²C bus speed and logic levels. Confirm that the 5 kΩ resistance value meets the circuit design requirements for current handling and voltage ranges.

Digital Potentiometers Selection Notes

Select this component when a compact SOT-23-8 package is required for space-constrained designs. The 5 kΩ resistance value offers a balance between bandwidth and noise performance. Consider the volatile memory nature; if non-volatility is critical without constant biasing, alternative models with embedded EEPROM should be evaluated.

Digital Potentiometers Part Context

The AD5245BRJZ5-R2 belongs to the AD5245 family of 256-position digital potentiometers. The 'B' indicates a commercial temperature grade, while 'RJZ5' specifies the SOT-23-8 package and lead-free status. The 'R2' suffix typically denotes a specific tape and reel quantity, distinct from other variants like RL7.

Digital Potentiometers Replacement Considerations

Direct pin-compatible substitutes within the same family include AD5245BRJ10-R2 (10 kΩ) and AD5245BRJ50-R2 (50 kΩ), provided the resistance value change is acceptable for the application.