MAX5386 MAXIM [Maxim Integrated Products], MAX5386 Datasheet
MAX5386
Available stocks
Related parts for MAX5386
MAX5386 Summary of contents
Page 1
... MAX5386/MAX5388 make the devices uniquely suitable for the portable consumer market, battery backup indus- trial applications, and the automotive market. The MAX5386 includes two digital potentiometers in a voltage-divider configuration. The MAX5388 includes one digital potentiometer in a voltage-divider configura- tion and one digital potentiometer in a variable-resistor configuration ...
Page 2
... H_, W_ GND ....-0.3V to the lower of (V All Other Pins to GND .............................................-0.3V to +6V Continuous Current in to H_, W_, and L_ MAX5386L/MAX5388L ................................................... ±5mA MAX5386M/MAX5388M ................................................. Q2mA MAX5386N/MAX5388N ................................................. Q1mA Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only, and functional operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied ...
Page 3
... Note 7: Digital timing is guaranteed by design and characterization, not production tested. _______________________________________________________________________________________ = GND unless otherwise noted. Typical values are MIN MAX CONDITIONS Measured RMS MAX5386L/MAX5388L t MAX5386M/MAX5388M S MAX5386N/MAX5388N V DD Digital inputs = V or GND MAX ...
Page 4
Dual, 256-Tap, Volatile Low-Voltage Linear Taper Digital Potentiometers ( +25°C, unless otherwise noted SUPPLY CURRENT vs. TEMPERATURE 1.0 0 0.6 0 2.6V DD 0.2 0 -40 -25 -10 ...
Page 5
Dual, 256-Tap, Volatile Low-Voltage Linear Taper Digital Potentiometers ( +25°C, unless otherwise noted VARIABLE-RESISTOR DNL vs. TAP POSITION (50kI) 0. 80µA WIPER 0.08 0.06 0.04 0.02 0 -0.02 -0.04 -0.06 -0.08 -0.10 ...
Page 6
... CROSSTALK vs. FREQUENCY 0 -20 MAX5386L -40 -60 -80 -100 MAX5386N MAX5386M -120 -140 0.01 0 100 FREQUENCY (kHz) TAP-TO-TAP SWITCHING TRANSIENT (CODE 127 TO 128) (MAX5386L) 200ns/div 255 MAX5386 POWER-ON WIPER TRANSIENT CODE 0 TO 128 MAX5386 toc23 V W-L 20mV/div CS 5V/div 2µs/div THD+N vs. FREQUENCY 0.14 0.12 MAX5386M 0.10 0.08 MAX5386N ...
Page 7
... Dual, 256-Tap, Volatile Low-Voltage Linear Taper Digital Potentiometers PIN NAME MAX5386 MAX5388 GND 6, 7, 11, 13 — N. DIN 10 7 SCLK — — — EP Figure 1. Voltage-Divider/Variable-Resistor Configurations _______________________________________________________________________________________ FUNCTION Resistor B High Terminal. The voltage at HB can be higher or lower than the voltage at LB ...
Page 8
... DIN synchronously into the serial shift register on the rising edge of each SCLK pulse. The MAX5386/MAX5388 load the last 9 bits of clocked data once CS transitions high. See Figures 2 and 3. After all the data bits are shifted in, data are latched into the appropriate potentiometer control register when CS goes from low to high ...
Page 9
Dual, 256-Tap, Volatile Low-Voltage Linear Taper Digital Potentiometers COMMAND STARTED 9 BITS CS SCLK DIN A0 D7 Figure 2. SPI Digital Interface Format CSO CSS SCLK DS DIN Figure 3. SPI Timing Diagram _______________________________________________________________________________________ ...
Page 10
Dual, 256-Tap, Volatile Low-Voltage Linear Taper Digital Potentiometers Applications Information Variable-Gain Amplifier Figure 4 shows a potentiometer adjusting the gain of a noninverting amplifier. Figure 5 shows a potentiometer adjusting the gain of an inverting amplifier ...
Page 11
Dual, 256-Tap, Volatile Low-Voltage Linear Taper Digital Potentiometers Variable Gain Current to Voltage Converter Figure 8 shows a variable gain current-to-voltage con- verter using a potentiometer as a variable resistor. Figure 9 shows a positive LCD bias control circuit using ...
Page 12
... Maxim cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a Maxim product. No circuit patent licenses are implied. Maxim reserves the right to change the circuitry and specifications without notice at any time. Maxim Integrated Products, 120 San Gabriel Drive, Sunnyvale, CA 94086 408-737-7600 12 © 2009 Maxim Integrated Products MAX5386 256 HB LATCH DECODER SPI POR WB 256 LATCH DECODER ...