Datasheet

(V
DD
= +2.6V to +5.5V, V
H_
= V
DD
, V
L_
= GND, T
A
= T
MIN
to T
MAX
, unless otherwise noted. Typical values are at V
DD
= +5V,
T
A
= +25˚C. ) (Note 1)
Note 1: All devices are 100% production tested at T
A
= +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 = V
DD
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 V
DD
= +5V, the wiper
terminal is driven with a source current of 400μA for the 10kΩ configuration, 80μA for the 50kΩ configuration, and 40μA for
the 100kΩ configuration. For V
DD
= +2.6V, the wiper terminal is driven with a source current of 200μA for the 10kΩ configu-
ration, 40μA for the 50kΩ configuration, and 20μA for the 100kΩ 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. R
W
=
(V
W
- V
H
)/I
W
.
Note 5: Drive HA with a 1kHz GND to V
DD
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 = V
DD
, 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.
PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS
Total Harmonic Distortion
Plus Noise
THD+N Measured at W, V
H_
= 1V
RMS
at 1kHz 0.015 %
Wiper Settling Time (Note 6) t
S
MAX5386L/MAX5388L 300
nsMAX5386M/MAX5388M 1000
MAX5386N/MAX5388N 2000
POWER SUPPLIES
Supply Voltage Range V
DD
2.6 5.5 V
Standby Current Digital inputs = V
DD
or GND 1 µA
DIGITAL INPUTS
Minimum Input High Voltage V
IH
70 %V
DD
Maximum Input Low Voltage V
IL
30 %V
DD
Input Leakage Current -1 +1 µA
Input Capacitance 5 pF
TIMING CHARACTERISTICS (Note 7)
Maximum SCLK Frequency f
MAX
10 MHz
SCLK Clock Period t
CP
100 ns
SCLK Pulse-Width High t
CH
40 ns
SCLK Pulse-Width Low t
CL
40 ns
CS Fall to SCLK Rise Setup Time t
CSS
40 ns
SCLK Rise to CS Rise Hold Time t
CSH
0 ns
DIN Setup Time t
DS
40 ns
DIN Hold Time t
DH
0 ns
SCLK Rise to CS Fall Delay t
CS0
10 ns
SCLK Rise to SCLK Rise Hold
Time
t
CS1
40 ns
CS Pulse-Width High t
CSW
100 ns
MAX5386/MAX5388 Dual, 256-Tap, Volatile, Low-Voltage
Linear Taper Digital Potentiometers
www.maximintegrated.com
Maxim Integrated │ 3
Electrical Characteristics (continued)