MAX5389 查看數據表（PDF） - Maxim Integrated
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MAX5389 Datasheet PDF : 13 Pages
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Dual, 256-Tap, Volatile, Low-Voltage
Linear Taper Digital Potentiometer
ABSOLUTE MAXIMUM RATINGS
VDD to GND ............................................................-0.3V to +6V
H_, W_, L_ to GND.......................................-0.3V to the lower of
(VDD + 0.3V) and +6V
All Other Pins to GND..............................................-0.3V to +6V
Continuous Current into H_, W_, and L_
MAX5389L.......................................................................... Q5mA
MAX5389M......................................................................... Q2mA
MAX5389N......................................................................... Q1mA
Continuous Power Dissipation (TA = +70NC)
14-Pin TSSOP (derate 10mW/NC above +70NC).......796.8mW
Operating Temperature Range......................... -40NC to +125NC
Junction Temperature......................................................+150NC
Storage Temperature Range............................ -65NC to +150NC
Lead Temperature (soldering, 10s).................................+300NC
Soldering Temperature (reflow).......................................+260NC
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. Exposure to absolute
maximum rating conditions for extended periods may affect device reliability.
ELECTRICAL CHARACTERISTICS
(VDD = +2.6V to +5.5V, VH__ = VDD, VL__ = GND, TA = -40NC to +125NC, unless otherwise noted. Typical values are at VDD = +5V,
TA = +25NC.) (Note 1)
PARAMETER
SYMBOL
CONDITIONS
Resolution
N
DC PERFORMANCE (Voltage-Divider Mode)
Integral Nonlinearity
INL (Note 2)
Differential Nonlinearity
DNL (Note 2)
Dual Code Matching
Register A = register B
Ratiometric Resistor Tempco
(DVW/VW)/DT, no load
MAX5389L
Full-Scale Error
Code = FFH
MAX5389M
MAX5389N
MAX5389L
Zero-Scale Error
Code = 00H
MAX5389M
MAX5389N
DC PERFORMANCE (Variable-Resistor Mode) (Note 3)
MIN TYP MAX UNITS
256
Taps
-0.5
+0.5 LSB
-0.5
+0.5 LSB
-0.5
+0.5 LSB
+5
LSB
-3
-2.5
-1
-0.5
LSB
-0.5 -0.25
+2.5 +3
+0.5 +1.0 LSB
+0.25 +0.5
MAX5389L
±1.0 ±2.5
VDD > +2.6V
MAX5389M
±0.5 ±1.0
Integral Nonlinearity
R-INL
MAX5389N
MAX5389L
±0.25 ±0.8
LSB
±0.4 ±1.5
VDD > +4.75V
MAX5389M
±0.3 ±0.75
MAX5389N
±0.25 ±0.5
Differential Nonlinearity
R-DNL VDD ≥ 2.6V
DC PERFORMANCE (Resistor Characteristics)
Wiper Resistance (Note 4)
RWL
VDD > 2.6V
VDD > 4.75V
Terminal Capacitance
CH_, CL__ Measured to GND
Wiper Capacitance
CW_ Measured to GND
End-to-End Resistor Tempco
TCR No load
End-to-End Resistor Tolerance
DRHL Wiper not connected
-0.5
+0.5 LSB
250 600
I
150 200
10
pF
50
pF
35
ppm/NC
-25
+25
%
2 _______________________________________________________________________________________
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