MAX5422 查看數據表（PDF） - Maxim Integrated
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MAX5422 Datasheet PDF : 11 Pages
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256-Tap, Nonvolatile, SPI-Interface,
Digital Potentiometers
ABSOLUTE MAXIMUM RATINGS
VDD to GND ...........................................................-0.3V to +6.0V
All Other Pins to GND.................................-0.3V to (VDD + 0.3V)
Maximum Continuous Current into H, L, and W
MAX5422......................................................................±1.3mA
MAX5423......................................................................±0.6mA
MAX5424......................................................................±0.3mA
Continuous Power Dissipation (TA = +70°C)
8-Pin TDFN (derate 24.4mW/°C above +70°C) .........1951mW
Operating Temperature Range ...........................-40°C to +85°C
Junction Temperature ......................................................+150°C
Storage Temperature Range .............................-60°C to +150°C
Lead Temperature (soldering, 10s) .................................+300°C
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 = +2.7V to +5.25V, H = VDD, L = GND, TA = -40°C to +85°C. Typical values are at VDD = +5.0V, TA = +25°C, unless otherwise noted.)
PARAMETER
SYMBOL
DC PERFORMANCE (VOLTAGE-DIVIDER MODE)
Resolution
Integral Nonlinearity
N
INL (Note 1)
Differential Nonlinearity
DNL (Note 1)
End-to-End Resistance
Temperature Coefficient
TCR
CONDITIONS
MIN TYP MAX UNITS
256
Taps
±0.5 LSB
±0.5 LSB
35
ppm/°C
Ratiometric Resistance
Temperature Coefficient
Full-Scale Error
MAX5422
MAX5423
MAX5424
MAX5422
Zero-Scale Error
MAX5423
MAX5424
DC PERFORMANCE (VARIABLE-RESISTOR MODE)
Integral Nonlinearity
(Note 2)
INL
VDD = 3V
VDD = 5V
VDD = 3V, MAX5422, -40°C ≤ TA ≤ +85°C,
guaranteed monotonic
5
-0.6
-0.3
-0.15
0.7
0.35
0.18
ppm/°C
LSB
LSB
±3.0
LSB
±1.5
-1.0
+2.0
Differential Nonlinearity
(Note 2)
DNL
VDD = 3V, MAX5422, 0°C ≤ TA ≤ +85°C,
guaranteed monotonic
VDD = 3V, MAX5423
VDD = 3V, MAX5424
VDD = 5V
DC PERFORMANCE (RESISTOR CHARACTERISTICS)
Wiper Resistance
Wiper Capacitance
RW
VDD = 3V to 5.25V (Note 3)
CW
MAX5422
End-to-End Resistance
MAX5423
MAX5424
-1.0
+1.2
LSB
±1.0
±1.0
±1.0
325
675
Ω
10
pF
37.5
50
62.5
75
100
125
kΩ
150
200
250
2 _______________________________________________________________________________________
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