Digchip : Database on electronics components
Electronics components database



Details, datasheet, quote on part number: AD5243BRM100-R2
 
 
Part numberAD5243BRM100-R2
Category
Description256-Position Dual Channel I2C Compatible Digital Potentiometer
CompanyAnalog Devices
DatasheetDownload AD5243BRM100-R2 datasheet
Request For QuoteFind where to buy AD5243BRM100-R2
 


 
Specifications, Features, Applications
FEATURES

2-Channel, 256-position End-to-end resistance 100 k Compact 4.9 mm) Package Full read/write of wiper register Power-on preset to midscale Extra package address decode pins AD0 and AD1(AD5248) Single supply +5.5 V Low temperature coefficient 35 ppm/C Low power, IDD 5 A Wide operating temperature to +125C Evaluation board available

applications. All parts are guaranteed to operate over the extended automotive temperature range to +125C.

APPLICATIONS

Mechanical potentiometer replacement in new designs Transducer adjustment of pressure, temperature, position, chemical, and optical sensors RF amplifier biasing Automotive electronics adjustment Gain control and offset adjustment

The & AD5248 provide a compact 3x4.9mm packaged solution for dual 256 position adjustment applications. These devices perform the same electronic adjustment function a 3terminal mechanical potentiometer a 2-terminal variable resistor (AD5248). Available in four different end-toend resistance values 100k ) these low temperature coefficient devices are ideal for high accuracy and stability variable resistance adjustments. The wiper settings are controllable through the I2C compatible digital interface. The AD5248 has extra package address decode pins & AD1 allowing multiple parts to share the same I2C 2-wire bus on a PCB. The resistance between the wiper and either end point of the fixed resistor varies linearly with respect to the digital code transferred into the RDAC latch1. Operating from to 5.5 volt power supply and consuming less than 5A allows for usage in portable battery operated

Note: The terms digital potentiometer, VR, and RDAC are used interchangeably.

Purchase of licensed I2C components of Analog Devices or one of its sublicensed Associated Companies conveys a license for the purchaser under the Philips I2C Patent Rights to use these components an I2C system, provided that the system conforms to the I2C Standard Specification as defined by Philips.

Information furnished by Analog Devices is believed to be accurate and reliable. However, no responsibility is assumed by Analog Devices for its use, nor for any infringements of patents or other rights of third parties that may result from its use. Specifications subject to change without notice. No license is granted by implication or otherwise under any patent or patent rights of Analog Devices. Trademarks and registered trademarks are the property of their respective companies.

One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A. Tel: 781.329.4700 www.analog.com Fax: 2003 Analog Devices, Inc. All rights reserved.

Electrical Characteristics--2.5 k Version................................... 3 Electrical 100 k Versions....... 4 Timing 100 k Versions............................................................................................................. 5 Absolute Maximum Ratings1.......................................................... 5 Typical Performance Characteristics............................................. 6 Test Circuits....................................................................................... 7 I2C Interface....................................................................................... 8 Operation......................................................................................... 10 Programming the Variable Resistor......................................... 10 Programming the Potentiometer Divider............................... 11 I2C Compatible 2-Wire Serial Bus............................................ 11

Level Shifting for Bidirectional Interface................................ 12 ESD Protection........................................................................... 12 Terminal Voltage Operating Range.......................................... 12 Power-Up Sequence................................................................... 13 Layout and Power Supply Bypassing....................................... 13 Pin Configuration and Function Descriptions........................... 14 Pin Configuration...................................................................... 14 Pin Function Descriptions........................................................ 14 Outline Dimensions....................................................................... 15 Ordering Guide.......................................................................... 15 ESD Caution................................................................................ 15

(VDD VA = +VDD; < +125C; unless otherwise noted.) Table 1.

Parameter Symbol Conditions DC CHARACTERISTICS--RHEOSTAT MODE Resistor Differential Nonlinearity2 R-DNL RWB, = no connect Resistor Integral Nonlinearity2 R-INL RWB, = no connect Nominal Resistor Tolerance3 RAB = 25C Resistance Temperature Coefficient RAB/T VAB = VDD, Wiper = no connect Wiper Resistance RW DC CHARACTERISTICS--POTENTIOMETER DIVIDER MODE (Specifications apply to all VRs) Resolution N Differential Nonlinearity4 DNL Integral Nonlinearity4 INL Voltage Divider Temperature Coefficient VW/T Code = 0x80 Full-Scale Error VWFSE Code = 0xFF Zero-Scale Error VWZSE Code = 0x00 RESISTOR TERMINALS Voltage Range5 VA,B,W A, B CA,B = 1 MHz, measured to GND, Code = 1 MHz, measured to GND, Code = 0x80 Shutdown Supply Current7 IDD_SD VDD 5.5 V Common-Mode Leakage ICM = VDD/2 DIGITAL INPUTS AND OUTPUTS Input Logic High VIH Input Logic Low VIL Input Logic High VIH VDD 3 V Input Logic Low VIL VDD 3 V Input Current IIL VIN V 6 Input Capacitance CIL POWER SUPPLIES Power Supply Range VDD RANGE Supply Current IDD VIH V or VIL 0 V Power Dissipation8 PDISS VIH V or VIL 0 V, VDD 5 V Power Supply Sensitivity PSS VDD 10%, Code = Midscale DYNAMIC CHARACTERISTICS6, 9 Bandwidth 3dB BW_5K RAB 2.5 k, Code = 0x80 Total Harmonic Distortion THDW 1 V rms, = 1 kHz VW Settling Time tS VA= V, 1 LSB error band Resistor Noise Voltage Density eN_WB RWB = 0 Min 5 30




Related products with the same datasheet
AD5243BRM10-R2   AD5243BRM10-RL7   AD5243BRM100-RL7   AD5243BRM2.5-R2   AD5243BRM2.5-RL7   AD5243BRM50-R2  
AD5243BRM50-RL7   AD5243EVAL  


Some Part number from the same manufacture Analog Devices
AD5243BRM100-RL7 256-Position Dual Channel I2C Compatible Digital Potentiometer
AD5245 256 Position I2C Compatible Digital Potentiometer
AD5246 128 Position I2C Compatible Programmable Resistor in SC70 Package
AD5247 128 Position I2C Compatible Digital Potentiometer in SC70 Package
AD5248 256-Position Dual Channel I2C Compatible Digital Resistor
AD524A Precision Monolithic Instrumentation Amplifier
AD524AD Precision Instrumentation Amplifier
AD524AE Precision Monolithic Instrumentation Amplifier
AD524B Precision Instrumentation Amplifier
AD524BD Precision Monolithic Instrumentation Amplifier
AD524C Precision Instrumentation Amplifier
AD524CD Precision Monolithic Instrumentation Amplifier
AD524S Precision Instrumentation Amplifier
AD524SCHIPS Precision Monolithic Instrumentation Amplifier
AD5251 I2C, Nonvolatile Memory, Dual 64-Position Digital Potentiometer
AD5253 I2C, Nonvolatile Memory, Quad 64-Position Digital Potentiometer
AD5255 64-Position Digital Up/down Control Potentiometer
AD526 Software Programmable Gain Amplifier
AD5260 +15 V or 5 V, Single-Channel, Spi Compatible, 256 Position Digital Potentiometer