ADI AD5254BRUZ10

线性425610kI²C2.7V ~ 5.5V，±2.25V ~ 2.75V-40°C ~ 105°C

Overview

The AD5253/AD5254BRUZ10 are quad-channel, I2 C®, nonvolatile mem-ory, digitally controlled potentiometers with 64/256 positions, respectively. These devices perform the same electronic adjust-ment functions as mechanical potentiometers, trimmers, and variable resistors.

FEATURES AD5253: quad 64-position resolution AD5254: quad 256-position resolution 1 kΩ, 10 kΩ, 50 kΩ, 100 kΩ Nonvolatile memory1 stores wiper settings w/write protection Power-on refreshed to EEMEM settings in 300 µs typ EEMEM rewrite time = 540 µs typ Resistance tolerance stored in nonvolatile memory 12 extra bytes in EEMEM for user-defined information I2C-compatible serial interface Direct read/write access of RDAC2 and EEMEM registers Predefined linear increment/decrement commands Predefined ±6 dB step change commands Synchronous or asynchronous quad-channel update Wiper setting readback 4 MHz bandwidth—1 kΩ version Single supply 2.7 V to 5.5 V Dual supply ±2.25 V to ±2.75 V 2 slave address-decoding bits allow operation of 4 devices 100-year typical data retention, TA = 55°C Operating temperature: –40°C to +105°C APPLICATIONS Mechanical potentiometer replacement Low resolution DAC replacement RGB LED backlight control White LED brightness adjustment RF base station power amp bias control Programmable gain and offset control Programmable attenuators Programmable voltage-to-current conversion Programmable power supply Programmable filters Sensor calibrations

Features

Bulk Package
Available in 20-TSSOP (0.173, 4.40mm Width) package
4 Circuits
Mounting Type: Surface Mount
Operate temperature at the range of -40°C~105°C
20 pins
Quiescent Current at 5μA

200 Resistance - Wiper (Ohms) (Typ)

Applications

There are a lot of Analog Devices Inc.
AD5254BRUZ10 Digital Potentiometers applications.

• Industrial control
• Medical equipment
• Refrigerator
• Programmable computer
• Power supply
• Power meter
• Automatic detection of equipment
• Optic fiber network
• Adjusting the LCD Display
• Voltage control