Welcome Here  Shenzhen Mingjiada Electronics Co., Ltd.

The AD5254BRUZ50 is a dual-channel, 256-bit, I2C, non-volatile memory, digital potentiometer. It provides electronic adjustment functionality equivalent to mechanical potentiometers, adjusters, and variable resistors. The device's versatile programming capabilities support multiple operating modes, including read/write access to RDAC and EEMEM registers, resistor increment/decrement, ±6 dB resistor range changes, and cursor setting readback. Additionally, it offers extra EEMEM for storing user-defined information such as memory data from other components, lookup tables, or system identification information.

The AD5254BRUZ50 allows the master I2C controller to write any 64/256-step cursor settings to the RDAC registers and store them in EEMEM. After storage, these settings are automatically restored to the RDAC registers at system power-up; they can also be dynamically restored.

The AD5254BRUZ50 provides additional increment, decrement, and ±6 dB step changes in synchronous or asynchronous channel update modes. The increment and decrement functions support stepwise linear adjustment, while the ±6 dB step changes are equivalent to doubling or halving the RDAC cursor setting. These functions are suitable for steep slope adjustments, non-linear adjustments such as white LED brightness, and volume control.

The AD5254BRUZ50 features a patented resistor tolerance storage function, allowing users to access the EEMEM and obtain the end-to-end absolute resistance values of the RDAC for precision applications.

AD5254BRUZ50 Features

Dual-channel 256-bit resolution

1 kΩ, 10 kΩ, 50 kΩ, 100 kΩ

Non-volatile memory stores cursor settings with write protection

EEMEM settings refreshed within 300 µs (typical) at power-up

EEMEM rewrite time = 540 µs (typical)

Resistance tolerance stored in non-volatile memory

12 additional bytes stored in EEMEM for user-defined information

I2C-compatible serial interface

Direct read/write access to RDAC and EEMEM registers

Predefined linear increment/decrement commands

Predefined ±6 dB step change commands

Synchronous or asynchronous dual-channel updates

Cursor setting readback functionality

4 MHz bandwidth — 1 kΩ version

Single-supply operation: 2.7 V to 5.5 V

Dual power supply: ±2.25 V to ±2.75 V

2 slave address decoding bits support operation of 4 devices

100-year typical data retention period, TA = 55°C

Operating temperature: -40°C to +105°C

Applications of AD5254BRUZ50

Replacement for mechanical potentiometers

General-purpose DAC replacement

LCD panel VCOM adjustment

White LED brightness adjustment

RF base station power amplifier bias control

Programmable gain and offset control

Programmable voltage-to-current conversion

Programmable power supply

Sensor calibration

• 1.Is the inventory and price seen on the platform accurate?

  A: all online goods on the shelves can be ordered online, but considering the large liquidity of spot inventory, it is not possible to achieve 100% accuracy at present. In case of any abnormality, you can contact our company online and give the corresponding solution.

• 2.Are all our products genuine?

  A: our self-supporting products are from cooperative domestic and foreign original factories or authorized agents, and the source can be traced to ensure the original and authentic products.

• 3.Can you provide the qualification certificate of the original factory or agent?

  A: at present, our self-employed brands TI，ST，ADI，NXP，LATTICE，CYPRESS，INFINEON，XILINX and other first-line brands. Other channels are the original factory and agency channels. If necessary, we can communicate and confirm according to the specific brand and model.

• 4.Can I make an inquiry through the company's website?

  A: You can inquire through the website, or by phone and email.

• 5.When can I deliver the goods after placing an order? How long will it take to get there?

  A: the delivery date is marked in most commodity information. You can estimate the delivery time of the commodity according to the delivery date. The specific arrival time depends on the warehouse where the commodity is located and the logistics mode you choose.

• 6.Can the company issue an invoice?

  A: you can issue ordinary invoices for individual users or special VAT invoices for enterprise users.