AD5161BRM5 Analog Devices Inc, AD5161BRM5 Datasheet
AD5161BRM5
Specifications of AD5161BRM5
Available stocks
Related parts for AD5161BRM5
AD5161BRM5 Summary of contents
Page 1
FEATURES 256-position End-to-end resistance 5 kΩ, 10 kΩ, 50 kΩ, 100 kΩ Compact MSOP- × 4.9 mm) package 2 Pin selectable SPI/I C compatible interface Extra package address decode pin AD0 Full read/write of wiper register Power-on preset ...
Page 2
AD5161 TABLE OF CONTENTS Features .............................................................................................. 1 Applications ....................................................................................... 1 General Description ......................................................................... 1 Functional Block Diagram .............................................................. 1 Pin Configuration ............................................................................. 1 Revision History ............................................................................... 2 Electrical Characteristics—5 kΩ Version ...................................... 3 Electrical Characteristics—10 kΩ, 50 kΩ, 100 kΩ ...
Page 3
ELECTRICAL CHARACTERISTICS—5 kΩ VERSION ± 10 ± 10 Table 1. Parameter DC CHARACTERISTICS—RHEOSTAT MODE 2 Resistor Differential Nonlinearity 2 Resistor Integral Nonlinearity Nominal Resistor Tolerance 3 Resistance Temperature ...
Page 4
AD5161 ELECTRICAL CHARACTERISTICS—10 kΩ, 50 kΩ, 100 kΩ VERSIONS ± 10 ± 10 Table 2. Parameter DC CHARACTERISTICS—RHEOSTAT MODE 2 Resistor Differential Nonlinearity 2 Resistor Integral Nonlinearity Nominal ...
Page 5
TIMING CHARACTERISTICS—5 kΩ, 10 kΩ, 50 kΩ, 100 kΩ VERSIONS V = +5V ± 10%, or +3V ± 10 Table 3. Parameter SPI INTERFACE TIMING CHARACTERISTICS Clock Frequency Input Clock Pulsewidth Data Setup Time Data ...
Page 6
AD5161 ABSOLUTE MAXIMUM RATINGS T = 25°C, unless otherwise noted. A Table 4. Parameter V to GND GND MAX Digital Inputs and Output Voltage to GND Operating Temperature ...
Page 7
PIN CONFIGURATION AND FUNCTION DESCRIPTIONS Table 5. Pin Function Description Pin No. Mnemonic Description Terminal Terminal /AD0 Chip Select ( CS ) Input, Active Low. When CS returns high, data will be ...
Page 8
AD5161 TYPICAL PERFORMANCE CHARACTERISTICS 1.0 0.8 0.6 0.4 0.2 0 –0.2 –0.4 –0.6 –0.8 –1 128 160 CODE (Decimal) Figure 4. R-INL vs. Code vs. Supply Voltages 1.0 0.8 0.6 0.4 0.2 0 –0.2 –0.4 –0.6 ...
Page 9
CODE (Decimal) Figure 10. R-INL vs. Code 1.0 0.8 0.6 0.4 0.2 0 –0.2 –0.4 –0.6 –0.8 –1.0 ...
Page 10
AD5161 200 150 100 50 0 – 128 CODE (Decimal) Figure 16. Rheostat Mode Tempco ∆R 160 140 120 100 – 128 160 CODE (Decimal) Figure 17. ...
Page 11
REF LEVEL /DIV –5.000dB 0.500dB –5.5 5kΩ – 1.026 MHz –6.0 10kΩ – 511 MHz 50kΩ – 101 MHz –6.5 100kΩ – 54 MHz –7.0 –7.5 –8.0 –8 50kΩ 5kΩ –9 10kΩ ...
Page 12
AD5161 TEST CIRCUITS Figure 28 to Figure 36 illustrate the test circuits that define the test conditions used in the product specification tables. DUT 1LSB = V+/ Figure 28. Test Circuit for ...
Page 13
SPI INTERFACE Table 6. AD5161 Serial Data-Word Format MSB SDI (DATA IN CLK VOUT 0 Figure 38. SPI Interface ...
Page 14
AD5161 INTERFACE Table 7. Write Mode AD0 W Slave Address Byte Table 8. Read Mode Slave Address Byte S = Start Condition P = ...
Page 15
THEORY OF OPERATION The AD5161 is a 256-position digitally controlled variable 1 resistor (VR) device. An internal power-on preset places the wiper at midscale during power-on, which simplifies the fault condition recovery at power-up. PROGRAMMING THE VARIABLE RESISTOR Rheostat Operation ...
Page 16
AD5161 PROGRAMMING THE POTENTIOMETER DIVIDER Voltage Output Operation The digital potentiometer easily generates a voltage divider at wiper-to-B and wiper-to-A proportional to the input voltage at A-to-B. Unlike the polarity GND, which must be DD positive, voltage ...
Page 17
The slave whose address corresponds to the transmitted address responds by pulling the SDA line low during the ninth clock pulse (this is termed the acknowledge bit). At this stage, all other devices on the bus remain idle while the ...
Page 18
AD5161 LEVEL SHIFTING FOR BIDIRECTIONAL INTERFACE While most legacy systems may be operated at one voltage, a new component may be optimized at another. When two systems operate the same signal at two different voltages, proper level shifting is needed. ...
Page 19
... AD5161BRM5 5k AD5161BRM5-RL7 5k AD5161BRMZ5 AD5161BRMZ5-RL7 5k AD5161BRM10 10k AD5161BRM10-RL7 10k 1 AD5161BRMZ10 10k 1 AD5161BRMZ10-RL7 10k AD5161BRM50 50k AD5161BRM50-RL7 50k 1 AD5161BRMZ50 50k 1 AD5161BRMZ50-RL7 50k AD5161BRM100 100k AD5161BRM100-RL7 100k 1 AD5161BRMZ100 100k 1 AD5161BRMZ100-RL7 100k 2 AD5161EVAL See Note RoHS Compliant Part, # denotes RoHS compliant part may be top or bottom marked. ...
Page 20
AD5161 NOTES 2 Purchase of licensed I C components of Analog Devices or one of its sublicensed Associated Companies conveys a license for the purchaser under the Philips I Rights to use these components system, ...