AD5254BRU1-RL7
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Analog Devices Inc. AD5254BRU1-RL7

Manufacturer No:
AD5254BRU1-RL7
Manufacturer:
Analog Devices Inc.
Package:
Tape & Reel (TR)
Description:
IC DGTL POT 1KOHM 256TAP 20TSSOP
Delivery:
Payment:
iso14001
iso45001
iso9001
iso13485

Product Introduction

Overview

The AD5254BRU1-RL7, produced by Analog Devices Inc., is a quad-channel, I2C, nonvolatile memory, digitally controlled potentiometer. This device offers 256 positions of resolution and is designed to perform the same electronic adjustment functions as mechanical potentiometers, trimmers, and variable resistors. It features a versatile programmability that includes read/write access to RDAC and EEMEM registers, increment/decrement of resistance, and resistance changes in ±6 dB scales. The device is available in a 20-lead TSSOP package and operates over an extended industrial temperature range of –40°C to +105°C.

Key Specifications

Parameter Value Unit
Resolution 256 positions
Resistance Options 1 kΩ, 10 kΩ, 50 kΩ, 100 kΩ
Supply Voltage 2.7 V to 5.5 V, ±2.25 V to ±2.75 V V
Operating Temperature –40°C to +105°C °C
Package Type 20-Lead TSSOP
I2C Compatibility I2C-compatible serial interface
Nonvolatile Memory Stores wiper settings with write protection
Power-On Refresh Time 300 μs (typical) μs
EEMEM Rewrite Time 540 μs (typical) μs
Resistance Tolerance Stored in nonvolatile memory
Extra EEMEM 12 extra bytes for user-defined information
Temperature Coefficient 650 ppm/°C (typical) ppm/°C
Data Retention 100 years (typical at 55°C) years

Key Features

  • Quad-channel digitally controlled potentiometer with 256 positions.
  • Nonvolatile memory to store wiper settings with write protection.
  • I2C-compatible serial interface with direct read/write access to RDAC and EEMEM registers.
  • Predefined linear increment/decrement commands and ±6 dB step change commands.
  • Synchronous or asynchronous quad-channel update capability.
  • Wiper setting readback and extra EEMEM for user-defined information.
  • Single supply operation from 2.7 V to 5.5 V and dual supply operation from ±2.25 V to ±2.75 V.
  • High temperature stability with an operating range of –40°C to +105°C.
  • Patented resistance-tolerance storing function for precision applications.

Applications

  • AUDIO: Audio volume control, tone control, and other audio adjustments.
  • LIGHTING: White LED brightness control.
  • INDUSTRIAL CONTROL: Adjustment of various parameters in industrial control systems.
  • AUTOMOTIVE: Electronic adjustments in automotive systems.
  • CONSUMER ELECTRONICS: Volume, tone, and other parameter adjustments in consumer electronics.

Q & A

  1. What is the resolution of the AD5254BRU1-RL7?

    The AD5254BRU1-RL7 has a resolution of 256 positions.

  2. What are the available resistance options for the AD5254BRU1-RL7?

    The available resistance options are 1 kΩ, 10 kΩ, 50 kΩ, and 100 kΩ.

  3. What is the operating temperature range of the AD5254BRU1-RL7?

    The operating temperature range is –40°C to +105°C.

  4. What type of interface does the AD5254BRU1-RL7 use?

    The device uses an I2C-compatible serial interface.

  5. How long does it take for the device to refresh its settings on power-on?

    The power-on refresh time is typically 300 μs.

  6. What is the purpose of the extra EEMEM in the AD5254BRU1-RL7?

    The extra EEMEM is for storing user-defined information such as memory data for other components, lookup tables, or system identification information.

  7. What is the temperature coefficient of the AD5254BRU1-RL7?

    The temperature coefficient is typically 650 ppm/°C.

  8. How long does the nonvolatile memory retain data?

    The nonvolatile memory retains data for typically 100 years at 55°C.

  9. What package type is the AD5254BRU1-RL7 available in?

    The device is available in a 20-Lead TSSOP package.

  10. Can the AD5254BRU1-RL7 be used in synchronous or asynchronous mode?

    Yes, the device can operate in both synchronous and asynchronous quad-channel update modes.

Product Attributes

Taper:Linear
Configuration:Potentiometer
Number of Circuits:4
Number of Taps:256
Resistance (Ohms):1K
Interface:I²C
Memory Type:Non-Volatile
Voltage - Supply:2.7V ~ 5.5V, ±2.25V ~ 2.75V
Features:Selectable Address
Tolerance:±30%
Temperature Coefficient (Typ):650ppm/°C
Mounting Type:Surface Mount
Supplier Device Package:20-TSSOP
Package / Case:20-TSSOP (0.173", 4.40mm Width)
Operating Temperature:-40°C ~ 105°C
Resistance - Wiper (Ohms) (Typ):200
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Similar Products

Part Number AD5254BRU1-RL7 AD5254BRUZ1-RL7 AD5254BRU10-RL7 AD5251BRU1-RL7 AD5252BRU1-RL7 AD5253BRU1-RL7
Manufacturer Analog Devices Inc. Analog Devices Inc. Analog Devices Inc. Analog Devices Inc. Analog Devices Inc. Analog Devices Inc.
Product Status Obsolete Active Obsolete Obsolete Obsolete Obsolete
Taper Linear Linear Linear Linear Linear Linear
Configuration Potentiometer Potentiometer Potentiometer Potentiometer Potentiometer Potentiometer
Number of Circuits 4 4 4 2 2 4
Number of Taps 256 256 256 64 256 64
Resistance (Ohms) 1K 1K 10k 1K 1K 1K
Interface I²C I²C I²C I²C I²C I²C
Memory Type Non-Volatile Non-Volatile Non-Volatile Non-Volatile Non-Volatile Non-Volatile
Voltage - Supply 2.7V ~ 5.5V, ±2.25V ~ 2.75V 2.7V ~ 5.5V, ±2.25V ~ 2.75V 2.7V ~ 5.5V, ±2.25V ~ 2.75V 2.7V ~ 5.5V, ±2.25V ~ 2.75V 2.7V ~ 5.5V, ±2.25V ~ 2.75V 2.7V ~ 5.5V, ±2.25V ~ 2.75V
Features Selectable Address Selectable Address Selectable Address Selectable Address Selectable Address Selectable Address
Tolerance ±30% ±30% ±20% ±30% ±30% ±30%
Temperature Coefficient (Typ) 650ppm/°C 650ppm/°C 650ppm/°C 650ppm/°C 650ppm/°C 650ppm/°C
Mounting Type Surface Mount Surface Mount Surface Mount Surface Mount Surface Mount Surface Mount
Supplier Device Package 20-TSSOP 20-TSSOP 20-TSSOP 14-TSSOP 14-TSSOP 20-TSSOP
Package / Case 20-TSSOP (0.173", 4.40mm Width) 20-TSSOP (0.173", 4.40mm Width) 20-TSSOP (0.173", 4.40mm Width) 14-TSSOP (0.173", 4.40mm Width) 14-TSSOP (0.173", 4.40mm Width) 20-TSSOP (0.173", 4.40mm Width)
Operating Temperature -40°C ~ 105°C -40°C ~ 105°C -40°C ~ 105°C -40°C ~ 105°C -40°C ~ 105°C -40°C ~ 105°C
Resistance - Wiper (Ohms) (Typ) 200 200 200 200 200 200

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