User Manual

MAX5471/MAX5472/MAX5474/MAX5475
32-Tap, Nonvolatile, Linear-Taper Digital
Potentiometers in SOT23
2 _______________________________________________________________________________________
ABSOLUTE MAXIMUM RATINGS
ELECTRICAL CHARACTERISTICS
(V
DD
= +2.7V to +5.25V, V
H
= V
DD
, V
L
= GND, T
A
= -40°C to +85°C, unless otherwise noted. Typical values are at V
DD
= +5.0V, T
A
= +25°C, unless otherwise noted.) (Note 1)
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.
V
DD
to GND...........................................................-0.3V to +6.0V
All Other
Pins to GND .........-0.3V to the lower of (V
DD
+ 0.3V) or +6.0V
Maximum Continuous Current into H, L, and W
MAX5471/MAX5474 .....................................................±1.3mA
MAX5472/MAX5475 .....................................................±0.6mA
Continuous Power Dissipation (T
A
= +70°C)
6-Pin SOT23 (derate 9.1mW/°C above +70°C)............727mW
8-Pin SOT23 (derate 8.9mW/°C above +70°C)............714mW
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
PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS
DC PERFORMANCE
Resolution N 32 Tap
MAX5471/MAX5474 37.5 50 62.5
End-to-End Resistance
MAX5472/MAX5475 75 100 125
kΩ
End-to-End Resistance
Temperature Coefficient
TC
R
35 ppm/°C
Ratiometric Resistance
Temperature Coefficient
5 ppm/°C
Variable-resistor mode (Note 2) ±0.5 ±1.0
Integral Nonlinearity INL
Voltage-divider mode (MAX5474/MAX5475)
(Note 3)
±0.1 ±0.5
LSB
Variable-resistor mode (Note 2) ±0.5 ±1.0
Differential Nonlinearity DNL
Voltage-divider mode (MAX5474/MAX5475)
(Note 3)
±0.1 ±0.5
LSB
Full-Scale Error MAX5474/MAX5475 -0.5 LSB
Zero-Scale Error MAX5474/MAX5475 +0.5 LSB
Wiper Resistance R
W
MAX5474/MAX5475 (Note 4) 600 1200 Ω
DIGITAL INPUTS (CS, U/D, INC) (Note 5)
V
DD
< 3.6V 0.7 x V
DD
Input High Voltage V
IH
V
DD
≥ 3.6V 2.4
V
V
DD
< 3.6V 0.3 x V
DD
Input Low Voltage V
IL
V
DD
≥ 3.6V 0.8
V
Input Current I
IN
±0.1 ±1 µA
DYNAMIC CHARACTERISTICS
MAX5471/MAX5474 400
Wiper -3dB Bandwidth (Note 6)
MAX5472/MAX5475 200
kHz