Datasheet

MAX5450–MAX5455
Dual, 256-Tap, Up/Down Interface,
Digital Potentiometers
2 _______________________________________________________________________________________
ABSOLUTE MAXIMUM RATINGS
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 +6V
CS_, INC_, and U/D_ to GND...................................-0.3V to +6V
H_, L_, W_ to GND ......................................-0.3V to (V
DD
+0.3V)
Maximum Continuous Current into H_, L_, and W_............±1mA
Continuous Power Dissipation (T
A
= +70°C)
10-Pin µMAX (derate 6.94mW/°C above +70°C) ..........555mW
14-Pin TSSOP (derate 9.1mW/°C above +70°C) ..........727mW
Operating Temperature Range ...........................-40°C to +85°C
Junction Temperature......................................................+150°C
Storage Temperature Range .............................-65°C to +150°C
Lead Temperature (soldering, 10s) .................................+300°C
ELECTRICAL CHARACTERISTICS
(V
DD
= +2.7V to +5.5V, V
H
= V
DD
, V
L
= 0; T
A
= T
MIN
to T
MAX
, unless otherwise noted. Typical values are at V
DD
= +5V, T
A
= +25°C,
unless otherwise noted.)
PARAMETER SYM B O L CONDITIONS MIN TYP MAX UNITS
DC PERFORMANCE (Voltage-Divider Mode, MAX5451/MAX5453/MAX5455 Only)
Resolution N 8 Bits
V
DD
= +5V ±1
Integral Nonlinearity
(Notes 1 and 2)
INL
V
DD
= +3V ±1
LSB
V
DD
= +5V ±1
Differential Nonlinearity
(Notes 1 and 2)
DNL
V
DD
= +3V ±1
LSB
End-to-End Resistor Tempco TC
R
35 ppm/°C
Ratiometric Resistor Tempco 5 ppm/°C
MAX5451 -8
MAX5453 -1.6Full-Scale Error
MAX5455 -0.8
LSB
MAX5451 +8
MAX5453 +1.6
Zero-Scale Error
MAX5455 +0.8
LSB
DC PERFORMANCE (Variable Resistor Mode)
Resolution N 8 Bits
MAX5450, MAX5451 ±3
V
DD
= +5V
MAX5452–MAX5455 ±1
MAX5450, MAX5451 ±4.5
Integral Nonlinearity
(Notes 1 and 3)
INL
V
DD
= +3V
MAX5452–MAX5455 ±2
LSB
V
DD
= +5V ±1
Differential Nonlinearity
(Notes 1 and 3)
DNL
V
DD
= +3V ±1
LSB
DC PERFORMANCE (Resistor Characteristics)
V
DD
= +5V, MAX5451/MAX5453/MAX5455 225
Wiper Resistance (Note 4) R
W
V
DD
= +3V, MAX5451/MAX5453/MAX5455 550
Ω
Wiper Capacitance C
W
10 pF
MAX5450, MAX5451 6.5 10 12.5
MAX5452, MAX5453 32 50 62.5End-To-End Resistance R
HL
MAX5454, MAX5455 60 100 125
kΩ