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MAX5388MAUB+ Datasheet(PDF) 3 Page - Maxim Integrated Products |
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MAX5388MAUB+ Datasheet(HTML) 3 Page - Maxim Integrated Products |
3 / 12 page Dual, 256-Tap, Volatile Low-Voltage Linear Taper Digital Potentiometers _______________________________________________________________________________________ 3 Note 1: All devices are 100% production tested at TA = +25°C. Specifications over temperature limits are guaranteed by design and characterization. Note 2: DNL and INL are measured with the potentiometer configured as a voltage-divider (Figure 1) with H = VDD and L = GND. The wiper terminal is unloaded and measured with an ideal voltmeter. Note 3: R-DNL and R-INL are measured with the potentiometer configured as a variable resistor (Figure 1). DNL and INL are mea- sured with the potentiometer configured as a variable resistor. H_ is unconnected and L_ = GND. For VDD = +5V, the wiper terminal is driven with a source current of 400µA for the 10kI configuration, 80µA for the 50kI configuration, and 40µA for the 100kI configuration. For VDD = +2.6V, the wiper terminal is driven with a source current of 200µA for the 10kI configu- ration, 40µA for the 50kI configuration, and 20µA for the 100kI configuration. Note 4: The wiper resistance is the worst value measured by injecting the currents given in Note 3 in to W with L = GND. RW = (VW - VH)/IW. Note 5: Drive HA with a 1kHz GND to VDD amplitude tone. LA = LB = GND. No load. WB is at midscale with a 10pF load. Measure WB. Note 6: The wiper-settling time is the worst case 0 to 50% rise time, measured between tap 0 and tap 127. H = VDD, L = GND, and the wiper terminal is loaded with 10pF capacitance to ground. Note 7: Digital timing is guaranteed by design and characterization, not production tested. ELECTRICAL CHARACTERISTICS (continued) (VDD = +2.6V to +5.5V, VH_ = VDD, VL_ = GND, TA = TMIN to TMAX, unless otherwise noted. Typical values are at VDD = +5V, TA = +25˚C. ) (Note 1) PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS Total Harmonic Distortion Plus Noise THD+N Measured at W, VH_ = 1VRMS at 1kHz 0.015 % Wiper Settling Time (Note 6) tS MAX5386L/MAX5388L 300 ns MAX5386M/MAX5388M 1000 MAX5386N/MAX5388N 2000 POWER SUPPLIES Supply Voltage Range VDD 2.6 5.5 V Standby Current Digital inputs = VDD or GND 1 F A DIGITAL INPUTS Minimum Input High Voltage VIH 70 %VDD Maximum Input Low Voltage VIL 30 %VDD Input Leakage Current -1 +1 F A Input Capacitance 5 pF TIMING CHARACTERISTICS (Note 7) Maximum SCLK Frequency fMAX 10 MHz SCLK Clock Period tCP 100 ns SCLK Pulse-Width High tCH 40 ns SCLK Pulse-Width Low tCL 40 ns CS Fall to SCLK Rise Setup Time tCSS 40 ns SCLK Rise to CS Rise Hold Time tCSH 0 ns DIN Setup Time tDS 40 ns DIN Hold Time tDH 0 ns SCLK Rise to CS Fall Delay tCS0 10 ns SCLK Rise to SCLK Rise Hold Time tCS1 40 ns CS Pulse-Width High tCSW 100 ns |
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