ad5160 Analog Devices, Inc., ad5160 Datasheet
ad5160
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ad5160 Summary of contents
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... RF amplifier biasing Automotive electronics adjustment Gain control and offset adjustment GENERAL OVERVIEW The AD5160 provides a compact 2.9 mm × packaged solution for 256-position adjustment applications. These devices perform the same electronic adjustment function as mechanical potentiometers or variable resistors, with enhanced resolution, solid-state reliability, and superior low temperature coefficient performance ...
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... AD5160 TABLE OF CONTENTS Electrical Characteristics—5 kΩ Version ...................................... 3 Electrical Characteristics—10 kΩ, 50 kΩ, 100 kΩ Versions ....... 4 Timing Characteristics—5 kΩ, 10 kΩ, 50 kΩ, 100 kΩ Versions 5 Absolute Maximum Ratings ........................................................... 5 Typical Performance Characteristics ............................................. 6 Test Circuits..................................................................................... 10 SPI Interface .................................................................................... 11 Operation......................................................................................... 12 Programming the Variable Resistor ......................................... 12 Programming the Potentiometer Divider ...
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... GND 0. 2.4 0.8 2.1 0.6 ±1 5 2.7 5 0.2 DD ±0.02 ±0.05 1 kHz 0. AD5160 Unit LSB LSB % ppm/°C Ω Bits LSB LSB ppm/°C LSB LSB µ µ µA mW %/% MHz % µs nV/√Hz ...
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... AD5160 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 3 Nominal Resistor Tolerance Resistance Temperature Coefficient Wiper Resistance DC CHARACTERISTICS—POTENTIOMETER DIVIDER MODE (Specifications apply to all VRs) ...
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... Rev Page Min Typ Max Unit 25 MHz and (10 and timed from a voltage R F AD5160 = ...
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... AD5160 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 3. R-INL vs. Code vs. Supply Voltages 1.0 0.8 0.6 0.4 0.2 0 –0.2 –0.4 –0.6 –0.8 –1 128 CODE (Decimal) Figure 4. R-DNL vs. Code vs. Supply Voltages 1.0 0.8 0.6 0.4 0.2 0 –0.2 –0.4 –0.6 –0.8 –1 ...
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... Rev Page 5. 2. TEMPERATURE (°C) Figure 12. Zero-Scale Error vs. Temperature TEMPERATURE (°C) Figure 13. Supply Current vs. Temperature TEMPERATURE (°C) Figure 14. Shutdown Current vs. Temperature AD5160 120 120 120 120 ...
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... AD5160 200 150 100 50 0 – 128 CODE (Decimal) Figure 15. Rheostat Mode Tempco ∆R 160 140 120 100 – 128 160 CODE (Decimal) Figure 16. Potentiometer Mode Tempco ∆V REF LEVEL /DIV MARKER 1 000 000.000Hz 0.000dB 6 ...
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... 100ns A CH2 3. Figure 24. Digital Feedthrough 100mV 200ns A CH1 152mV Figure 25. Midscale Glitch, Code 0x80–0x7F 5.00V 200ns A CH1 3. AD5160 VW CLK ...
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... AD5160 TEST CIRCUITS Figure 27 to Figure 35 illustrate the test circuits that define the test conditions used in the product specification tables. DUT 1LSB = V+/ Figure 27. Test Circuit for Potentiometer Divider Nonlinearity Error (INL, DNL) NO CONNECT DUT Figure 28. Test Circuit for Resistor Position Nonlinearity Error (Rheostat Operation ...
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... CSHO t CSS Rev Page SDI 0 1 CLK 0 RDAC REGISTER LOAD Figure 36. AD5160 SPI Interface Timing Diagram ) ( OUT t CS1 t CSH1 t CSW t S ±1LSB ) = OUT ...
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... AD5160 OPERATION The AD5160 is a 256-position digitally controlled variable 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 The nominal resistance of the RDAC between terminals A and B is available in 5 kΩ ...
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... Therefore, the temperature drift reduces to 15 ppm/°C. SPI COMPATIBLE 3-WIRE SERIAL BUS The AD5160 contains a 3-wire SPI compatible digital interface (SDI and CLK). The 8-bit serial word must be loaded MSB first. The format of the word is shown in Table 5. The positive-edge sensitive CLK input requires clean transitions to avoid clocking incorrect data into the serial input register ...
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... Figure 42). Note that the digital ground should also be joined remotely to the analog ground at one point to minimize the ground bounce µ F Figure 42. Power Supply Bypassing Rev Page 0.1 µ F AD5160 GND ...
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... Name Description W W Terminal. V Positive Power Supply. DD GND Digital Ground. CLK Serial Clock Input. Positive edge triggered. SDI Serial Data Input. CS Chip Select Input, Active Low. When CS returns high, data will be loaded into the DAC register Terminal Terminal. AD5160 ...
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... See Note 1 1 The evaluation board is shipped with the 10 kΩ R The AD5160 contains 2532 transistors. Die size: 30.7 mil × 76.8 mil = 2,358 sq. mil. ESD CAUTION ESD (electrostatic discharge) sensitive device. Electrostatic charges as high as 4000 V readily accumulate on the human body and test equipment and can discharge without detection. Although this product features proprietary ESD protection circuitry, permanent damage may occur on devices subjected to high energy electrostatic discharges ...