MAX5386 Просмотр технического описания (PDF) - Maxim Integrated
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MAX5386 Datasheet PDF : 13 Pages
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Dual, 256-Tap, Volatile, Low-Voltage
Linear Taper Digital Potentiometers
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
%
MAX5386L/MAX5388L
300
Wiper Settling Time (Note 6)
tS
MAX5386M/MAX5388M
MAX5386N/MAX5388N
1000
ns
2000
POWER SUPPLIES
Supply Voltage Range
Standby Current
DIGITAL INPUTS
VDD
Digital inputs = VDD or GND
2.6
5.5
V
1
FA
Minimum Input High Voltage
VIH
Maximum Input Low Voltage
VIL
Input Leakage Current
70
%VDD
30
%VDD
-1
+1
FA
Input Capacitance
5
pF
TIMING CHARACTERISTICS (Note 7)
Maximum SCLK Frequency
SCLK Clock Period
SCLK Pulse-Width High
SCLK Pulse-Width Low
CS Fall to SCLK Rise Setup Time
SCLK Rise to CS Rise Hold Time
DIN Setup Time
DIN Hold Time
SCLK Rise to CS Fall Delay
fMAX
tCP
tCH
tCL
tCSS
tCSH
tDS
tDH
tCS0
10
MHz
100
ns
40
ns
40
ns
40
ns
0
ns
40
ns
0
ns
10
ns
SCLK Rise to SCLK Rise Hold
Time
tCS1
40
ns
CS Pulse-Width High
tCSW
100
ns
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.
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