MAX5481 MAXIM [Maxim Integrated Products], MAX5481 Datasheet
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MAX5481
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MAX5481 Summary of contents
Page 1
... The MAX5481–MAX5484 operate with either a +2.7V to +5.25V single power supply or ±2.5V dual power sup- plies. These devices consume 400µA (max) of supply current when writing data to the nonvolatile memory and 1.0µ ...
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... V = GND = +5.0V +25°C, unless otherwise noted.) (Note 1) A PARAMETER SYMBOL DC PERFORMANCE (MAX5481/MAX5482 programmable voltage-divider) Resolution Integral Nonlinearity (Note 2) Differential Nonlinearity (Note 2) End-to-End Resistance Temperature Coefficient Ratiometric Resistance Temperature Coefficient Full-Scale Error Zero-Scale Error End-to-End Resistance ...
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... Single-supply operation +5.25V Dual-supply operation = -2. MAX5481 Wiper at code = 01111 01111 10pF MAX5482 3V, wiper at DD MAX5481 code = 01111 01111, THD 1V at 10kHz is RMS applied at H, 10pF MAX5482 load +85° +25° +85° GND = 0 ...
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... CS going high to the wiper voltage settling to within 0.5% of its final value. 4 _______________________________________________________________________________________ = -40°C to +85°C, unless otherwise noted. Typical values are CONDITIONS MAX5481 t S MAX5482 CSS CSH ...
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... INL vs. CODE (MAX5483) 2 2.7V DD 1.5 1.0 0.5 0 -0.5 -1.0 -1.5 -2.0 0 128 256 384 512 640 768 896 1024 CODE DNL vs. CODE (MAX5481) 1 2.7V DD 0.8 0.6 0.4 0.2 0 -0.2 -0.4 -0.6 -0.8 -1.0 0 128 256 384 512 640 768 896 1024 CODE INL vs. CODE (MAX5481) 1 0.8 0.6 0.4 0.2 0 -0.2 -0.4 -0.6 -0.8 -1.0 0 128 256 384 512 640 768 896 1024 CODE 5 ...
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Nonvolatile, Linear-Taper Digital Potentiometers (V = 5.0V +25°C, unless otherwise noted DNL vs. CODE (MAX5484) 1 2.7V DD 0.8 0.6 0.4 0.2 0 -0.2 -0.4 -0.6 -0.8 -1.0 0 ...
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Nonvolatile, Linear-Taper Digital (V = 5.0V +25°C, unless otherwise noted WIPER RESISTANCE vs. CODE (VARIABLE RESISTOR +25° 128 ...
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... CODE RESPONSE (MAX5482) MAX5481 toc29 CS 2V/div V W (AC-COUPLED) 20mV/div GND 10pF W FROM CODE 01 1111 1111 TO CODE 10 0000 0000 4µs/div THD+N vs. FREQUENCY ...
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... Nonvolatile, Linear-Taper Digital (MAX5481/MAX5482 Voltage-Dividers) PIN NAME TQFN TSSOP 4– N. SPI/ DIN(U/ SCLK(INC) Wiper-Increment Control Input (SPI/UD = 0). With CS low, the wiper position moves in the GND ...
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Nonvolatile, Linear-Taper Digital Potentiometers (MAX5483/MAX5484 Variable Resistors) PIN NAME TQFN TSSOP 4– N. D.N. SPI/ DIN(U/D) 11 ...
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... V DD 10-BIT GND NV MEMORY SPI SCLK(INC) INTERFACE DIN(U/D) UP/DOWN INTERFACE NOTE: THE MAX5481/MAX5482 ARE NOT INTENDED FOR CURRENT TO FLOW THROUGH THE WIPER (SEE THE MAX5481/MAX5482 PROGRAMMABLE VOLTAGE-DIVIDER SECTION). ______________________________________________________________________________________ Potentiometers Functional Diagrams 10 10 10-BIT DECODER LATCH POR MUX MAX5481 MAX5482 H ...
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... SPI-compatible serial interface or up/down interface. The MAX5481/MAX5483 provide a total end-to-end resistance of 10kΩ, and the MAX5482/MAX5484 have an end-to-end resistance of 50kΩ. The MAX5481/MAX5482 allow access to the high, low, and wiper terminals for a standard voltage- divider configuration. 12 ______________________________________________________________________________________ ...
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... To ensure temperature drift remains within speci- fications, do not pull current through the voltage-divider wiper. Connect the wiper to a high-impedance node. Figures 1 and 2 show the behavior of the MAX5481’s resistance from and from This does not apply to the variable-resistor devices ...
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Nonvolatile, Linear-Taper Digital Potentiometers Table 2. Command Decoding* CLOCK EDGE Bit Name — — Write Wiper Register Copy Wiper Register Register Copy NV Register to 0 ...
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Nonvolatile, Linear-Taper Digital a) 24-BIT COMMAND/DATA WORD CS SCLK(INC DIN(U/D) b) 8-BIT COMMAND WORD CS SCLK(INC DIN(U/D) Figure 4. Serial SPI-Compatible Interface Format ...
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... SCLK(INC) low while taking CS high. Upon power-up, the MAX5481–MAX5484 load the value of nonvolatile memory into the wiper register, and set the wiper position to the value last stored. ...
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... SCLK(INC) MUST BE AT LOGIC HIGH WHEN DIN(U/D) CHANGES STATE. Figure 8. Up/Down Serial-Interface Timing Diagram (SPI ______________________________________________________________________________________ Standby Mode The MAX5481–MAX5484 are ideal for circuits requiring digitally controlled adjustable resistance, such as LCD contrast control (where voltage biasing adjusts the dis- play contrast), or programmable filters with adjustable gain and/or cutoff frequency ...
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... Adjust R2 for the gain and adjust R3 for the cutoff frequency. Use the following equations to estimate the gain (G) and the 3dB cutoff frequency ( ______________________________________________________________________________________ 30V MAX5481 MAX5482 V OUT MAX5483 MAX5484 Figure 11. Programmable Gain/Offset Adjustment MAX5483 MAX5484 ...
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... Note: All devices are specified over the -40°C to +85°C operating temperature range. 50 *EP = Exposed pad. TRANSISTOR COUNT: 20,029 PROCESS: BiCMOS Pin Configurations (continued N.C. GND MAX5481 SCLK(INC) 4 MAX5482 DIN(U/ N.C. SPI/ N.C. N.C. 7 TSSOP Potentiometers PIN-PACKAGE ...
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Nonvolatile, Linear-Taper Digital Potentiometers (The package drawing(s) in this data sheet may not reflect the most current specifications. For the latest package outline information www.maxim-ic.com/packages.) MARKING D/2 D 0.10 C PKG 8L 3x3 REF. MIN. NOM. MAX. ...
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Nonvolatile, Linear-Taper Digital (The package drawing(s) in this data sheet may not reflect the most current specifications. For the latest package outline information www.maxim-ic.com/packages.) Revision History Pages changed at Rev 3: 1, 11, 19, 20, 21 Maxim ...