Electronic component search and free download site.
Transistors,MosFET ,Diode,Integrated circuits

P/N + Description + Content Search

Search Word's :
ADI
Analog Devices
Description : Nonvolatile Memory, Dual 1024-Position Digital Potentiometer

GENERAL DESCRIPTION

The AD5235-EP is a Dual-channel, Nonvolatile Memory,Digitally controlled Potentiometer with 1024-step resolution. The device performs the same electronic adjustment function as a mechanical Potentiometer with enhanced resolution, solid state reliability, and superior low temperature coefficient performance. The AD5235-EP’s versatile programming via an SPI®-compatible serial interface allows 16 modes of operation and adjustment including scratchpad programming, Memory storing and restoring, increment/decrement, ±6 dB/step log taper adjustment, wiper setting readback, and extra EEMEM for user-defined information such as

Memory data for other components, look-up tables, or system identification information.



FEATURES

Dual-channel, 1024-Position resolution

25 kΩ nominal resistance

Low temperature coefficient: 35 ppm/°C

Nonvolatile Memory stores wiper settings

Permanent Memory write protection

Wiper setting readback

Resistance tolerance stored in EEMEM

Predefined linear increment/decrement instructions

Predefined ±6 dB/step log taper increment/decrement

instructions

SPI-compatible serial interface

2.7 V to 5 V single supply or ±2.5 V Dual supply

26 bytes extra Nonvolatile Memory for user-defined

information

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

Power-on refreshed with EEMEM settings

Enhanced Features

Supports defense and aerospace applications (AQEC)

Temperature range: −40°C to +125°C

Controlled manufacturing baseline

1 assembly/test site

1 fabrication site

Enhanced product change notification

Qualification data available on request



APPLICATIONS

DWDM laser diode driver, optical supervisory systems

Mechanical Potentiometer replacement

Instrumentation: gain, offset adjustment

Programmable voltage-to-current conversion

Programmable filters, delays, time constants

Programmable power supply

Low resolution DAC replacement

Sensor calibration



ELECTRICAL CHARACTERISTICS

VDD= 2.7 V to 5.5 V, VSS= 0 V; VDD= 2.5 V, VSS= −2.5 V, VA= VDD, VB= VSS, −40°C < TA< +125°C, unless otherwise noted.


Description : Nonvolatile Memory, Dual 1024-Position Digital Potentiometer

GENERAL DESCRIPTION

The AD5235 is a Dual-channel, Nonvolatile Memory, Digitally controlled Potentiometer2 with 1024-step resolution, offering guaranteed maximum low resistor tolerance error of ±8%. The device performs the same electronic adjustment function as a mechanical Potentiometer with enhanced resolution, solid state reliability, and superior low temperature coefficient performance. The versatile programming of the AD5235 via an SPI®-compatible serial interface allows 16 modes of operation and adjustment including scratchpad programming, Memory storing and restoring, increment/decrement, ±6 dB/step log taper adjustment, wiper setting readback, and extra EEMEM for user defined information such as Memory data for other components,

look-up table, or system identification information.



FEATURES

Dual-channel, 1024-Position resolution

25 kΩ, 250 kΩ nominal resistance

Maximum ±8% nominal resistor tolerance error

Low temperature coefficient: 35 ppm/°C

2.7 V to 5 V single supply or ±2.5 V Dual supply

SPI-compatible serial interface

Nonvolatile Memory stores wiper settings

Power-on refreshed with EEMEM settings

Permanent Memory write protection

Resistance tolerance stored in EEMEM

26 bytes extra Nonvolatile Memory for user-defined information

1M programming cycles

100-year typical data retention


 



APPLICATIONS

DWDM laser diode driver, optical supervisory systems

Mechanical Potentiometer replacement

Instrumentation: gain, offset adjustment

Programmable voltage-to-current conversion

Programmable filters, delays, time constants

Programmable power supply

Low resolution DAC replacement

Sensor calibration


Description : Nonvolatile Memory, Dual 256-Position Digital Potentiometer

GENERAL DESCRIPTION
The AD5232 device provides a Nonvolatile, Dual-channel, Digitally controlled variable resistor (VR) with 256-position resolution. This device performs the same electronic adjustment function as a mechanical Potentiometer with enhanced resolution, solid state reliability, and superior low temperature coefficient performance. The versatile programming of the AD5232, per ormed via a microcontroller, allows multiple modes of operation and adjustment.
In the direct program mode, a predetermined setting of the RDAC registers (RDAC1 and RDAC2) can be loaded directly from the microcontroller. Another important mode of operation allows the RDACx register to be refreshed with the setting previously stored in the corresponding EEMEM register (EEMEM1 and EEMEM2). When changes are made to the RDACx register to establish a new wiper position, the value of the setting can be saved into the EEMEMx register by executing an EEMEM save operation. After the settings are saved in the EEMEMx register, these values are automatically transferred to the RDACx register to set the wiper position at system power-on. Such operation is enabled by the internal preset strobe. The preset strobe can also be accessed externally.

FEATURES
   Dual-channel, 256-position resolution
   10 kΩ, 50 kΩ, and 100 kΩ nominal terminal resistance
   Nonvolatile Memory maintenance of wiper settings
   Predefined linear increment/decrement instructions
   Predefined ±6 dB step log taper increment/decrement
      instructions
   SPI-compatible serial interface
   Wiper settings and EEMEM readback
   3 V to 5 V single-supply operation
   ±2.5 V Dual-supply operation
   14 bytes of general-purpose user EEMEM
   Permanent Memory write protection
   100-year typical data retention (TA = 55°C)

APPLICATIONS
   Mechanical Potentiometer replacement
   Instrumentation: gain and offset adjustment
   Programmable voltage-to-current conversion
   Programmable filters, delays, and time constants
   Programmable power supply
   Low resolution DAC replacement
   Sensor calibration

Description : 8-Bit Dual Nonvolatile Memory Digital Potentiometer

GENERAL DESCRIPTION
The AD5232 device provides a Nonvolatile, Dual-channel, Digitally controlled variable resistor (VR) with 256-position resolution. These devices perform the same electronic adjustment function as a Potentiometer or variable resistor. The AD5232’s versatile programming via a microcontroller allows multiple modes of operation and adjustment.
In the direct program mode a predetermined setting of the RDAC register can be loaded directly from the microcontroller. Another key mode of operation allows the RDAC register to be refreshed with the setting previously stored in the EEMEM register. When changes are made to the RDAC register to establish a new wiper position, the value of the setting can be saved into the EEMEM by executing an EEMEM save operation. Once the settings are saved in the EEMEM register these values will be automatically transferred to the RDAC register to set the wiper position at system power ON. Such operation is enabled by the internal preset strobe and the preset can also be accessed externally.

FEATURES
   Nonvolatile Memory Preset Maintains Wiper Settings
   Dual Channel, 256-Position Resolution
   Full Monotonic Operation DNL < 1 LSB
   10 kΩ, 50 kΩ, 100 kΩ Terminal Resistance
   Linear or Log Taper Settings
   Push-Button Increment/Decrement Compatible
   SPI-Compatible Serial Data Input with Readback
      Function
   3 V to 5 V Single Supply or 2.5 V Dual Supply
      Operation
   14 Bytes of User EEMEM Nonvolatile Memory for
      Constant Storage
   Permanent Memory Write Protection
   100-Year Typical Data Retention TA = 55°C

APPLICATIONS
   Mechanical Potentiometer Replacement
   Instrumentation: Gain, Offset Adjustment
   Programmable Voltage-to-Current Conversion
   Programmable Filters, Delays, Time Constants
   Line Impedance Matching
   Power Supply Adjustment
   DIP Switch Setting

MaximIC
Maxim Integrated
Description : Nonvolatile, 32-Position Digital Potentiometer

General Description
The DS4301 is a single 32-position linear Digital Potentiometer with 200kΩ end-to-end resistance. The wiper setting is stored in EEPROM, so the DS4301 powers up with the last stored setting. The position of the wiper is controlled through a simple three-terminal increment/decrement interface. The DS4301 is ideal for white LED backlight brightness control. Its 8-pin µSOP package, 2.4V to 5.5V supply range, and 200kΩ end to-end resistance are especially suited for portable, battery-powered applications such as cellular tele phones and PDAs.

Features
♦ Single, 32-Position, 200kΩ Linear Nonvolatile (NV) Potentiometer Ideal for Battery-Powered Applications
♦ Three-Terminal Increment/Decrement Interface to Adjust Wiper Position
♦ Wide Voltage Supply Range (2.4V to 5.5V)
♦ Command-Initiated NV Wiper Storage
♦ Operates Over the Industrial Temperature Range (-40°C to +85°C)
♦ Available in 8-Pin µSOP

Description : Nonvolatile Memory, Dual 1024-Position Programmable Resistors

GENERAL DESCRIPTION
The ADN2850 provides Dual-channel, Digitally controlled programmable resistors2 with resolution of 1024 positions. These devices perform the same electronic adjustment function as a mechanical rheostat with enhanced resolution, solid-state reliability, and superior low temperature coefficient performance. The ADN2850’s versatile programming via a standard serial interface allows 16 modes of operation and adjustment, including scratch pad programming, Memory storing and retrieving, increment/decrement, log taper adjustment, wiper setting readback, and extra user defined EEMEM1.

FEATURES
   Dual, 1024-Position Resolution
   25 kΩ, 250 kΩ Full-Scale Resistance
   Low Temperature Coefficient: 35 ppm/°C
   Nonvolatile Memory1 Preset Maintains Wiper Settings
   Permanent Memory Write-Protection
   Wiper Settings Read Back
   Actual Tolerance Stored in EEMEM1
   Linear Increment/Decrement
   Log Taper Increment/Decrement
   SPI Compatible Serial Interface
   3 V to 5 V Single Supply or ±2.5 V Dual Supply
   26 Bytes User Nonvolatile Memory for Constant Storage
   Current Monitoring Configurable Function
   100-Year Typical Data Retention TA = 55°C

APPLICATIONS
   SONET, SDH, ATM, Gigabit Ethernet, DWDM Laser
      Diode Driver Optical Supervisory Systems

Description : Nonvolatile Memory, Dual 1024-Position Digital Resistor

GENERAL DESCRIPTION
The ADN2850 provides Dual-channel, Digitally controlled programmable resistors2 with resolution of 1024 positions. These devices perform the same electronic adjustment function as a mechanical rheostat with enhanced resolution, solid-state reliability, and superior low temperature coefficient performance. The ADN2850’s versatile programming via a standard serial interface allows 16 modes of operation and adjustment, including scratch pad programming, Memory storing and retrieving, increment/decrement, log taper adjustment, wiper setting readback, and extra user defined EEMEM1.

FEATURES
   Dual, 1024-Position Resolution
   25 kΩ, 250 kΩ Full-Scale Resistance
   Low Temperature Coefficient: 35 ppm/°C
   Nonvolatile Memory1 Preset Maintains Wiper Settings
   Permanent Memory Write-Protection
   Wiper Settings Read Back
   Actual Tolerance Stored in EEMEM1
   Linear Increment/Decrement
   Log Taper Increment/Decrement
   SPI Compatible Serial Interface
   3 V to 5 V Single Supply or ±2.5 V Dual Supply
   26 Bytes User Nonvolatile Memory for Constant Storage
   Current Monitoring Configurable Function
   100-Year Typical Data Retention TA = 55°C

APPLICATIONS
   SONET, SDH, ATM, Gigabit Ethernet, DWDM Laser
      Diode Driver Optical Supervisory Systems

Description : Dual Nonvolatile Digital Potentiometer and Secure Memory

DESCRIPTION
The DS1855 Dual Nonvolatile (NV) Digital Potentiometer and secure Memory consists of one100-position linear taper Potentiometer, one256-position linear taper Potentiometer, 256 bytes of EEPROM Memory, and a 2-wire interface. The DS1855, which features a new software write protect, is an upgrade of the DS1845. The DS1855 provides an ideal method for setting bias voltages and currents in control applications using a minimum of circuitry.

FEATURES
■ Two linear taper Potentiometers
    - DS1855-010 (one 10k, 100 position and one 10k, 256 position)
    - DS1855-020 (one 10k, 100 position and one 20k, 256 position)
    - DS1855-050 (one 10k, 100 position and one 50k, 256 position)
    - DS1855-100 (one 10k, 100 position and one 100k, 256 position)
■ 256 bytes of EEPROM Memory
■ Access to data and Potentiometer control via a 2-wire interface
■ External write-protect pin to protect data and Potentiometer settings
■ Data and Potentiometer settings also can be write-protected through software control
Nonvolatile wiper storage
■ Operates from 3V or 5V supplies
■ Packaging: 14-pin TSSOP, 16-ball STPBGA, flip-chip package
■ Industrial operating temperature: -40ºC to +85ºC
■ Programming temperature: 0ºC to +85ºC

Description : Dual Nonvolatile Digital Potentiometer and Secure Memory

DESCRIPTION
The DS1855 Dual Nonvolatile (NV) Digital Potentiometer and secure Memory consists of one 100-position linear taper Potentiometer, one 256-position linear taper Potentiometer, 256 bytes of EEPROM Memory, and a 2-wire interface. The DS1855, which features a new software write protect, is an upgrade of the DS1845. The DS1855 provides an ideal method for setting bias voltages and currents in control applications using a minimum of circuitry.

FEATURES
■ Two Linear Taper Potentiometers
    − DS1855-010 (One 10kΩ, 100 Position and One 10kΩ, 256 Position)
    − DS1855-020 (One 10kΩ, 100 Position and One 20kΩ, 256 Position)
    − DS1855-050 (One 10kΩ, 100 Position and One 50kΩ, 256 Position)
    − DS1855-100 (One 10kΩ, 100 Position and One 100kΩ, 256 Position)
■ 256 Bytes of EEPROM Memory
■ Access to Data and Potentiometer Control via a 2-Wire Interface
■ External Write-Protect Pin to Protect Data and Potentiometer Settings
■ Data and Potentiometer Settings Also Can Be Write Protected Through Software Control
Nonvolatile Wiper Storage
■ Operates from 3V or 5V Supplies
■ 14-Pin TSSOP, 16-Ball CSBGA, and 14-Pin Flip-Chip Packages
■ Industrial Operating Temperature: -40ºC to +85ºC

Description : Single-Channel, 1024-Position, 1% R-Tolerance Digital Potentiometer

GENERAL DESCRIPTION

The AD5293 is a single-channel, 1024-Position Digital Potentiometer with a <1% end-to-end resistor tolerance error. The AD5293 performs the same electronic adjustment function as a mechanical Potentiometer with enhanced resolution, solid state reliability, and superior low temperature coefficient performance. This device is capable of operating at high voltages and supporting both Dual-supply operation at ±10.5 V to ±15 V and single-supply operation at 21 V to 30 V.



FEATURES

Single-channel, 1024-Position resolution

20 kΩ, 50 kΩ, and 100 kΩ nominal resistance

Calibrated 1% nominal resistor tolerance (resistor performance mode)

Rheostat mode temperature coefficient: 35 ppm/°C

Voltage divider temperature coefficient: 5 ppm/°C

Single-supply operation: 9 V to 33 V

Dual-supply operation: ±9 V to ±16.5 V

SPI-compatible serial interface

Wiper setting readback



APPLICATIONS

Mechanical Potentiometer replacement

Instrumentation: gain and offset adjustment

Programmable voltage-to-current conversion

Programmable filters, delays, and time constants

Programmable power supply

Low resolution DAC replacements

Sensor calibration


12345678910 Next



All Rights Reserved© datasheetq.com  [Privacy Policy ] [ Request Datasheet] [Contact Us]