Datasheet
MAX5407
32-Tap Audio Logarithmic Taper
Digital Potentiometer
2 _______________________________________________________________________________________
ABSOLUTE MAXIMUM RATINGS
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 and T
A
= +25°C.)
(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 +6V
H, W, L, CS, ZCEN, and U/D to GND .........-0.3V to (V
DD
+ 0.3V)
Input and Output Latchup Immunity...............................±200mA
Maximum Continuous Current into H, L, and W ..............±500µA
Continuous Power Dissipation (T
A
= +70°C)
8-Pin SOT23-8 (derate 8.9mW/°C above +70°C) ......714mW
Operating Temperature Range ...........................-40°C to +85°C
Junction Temperature......................................................+150°C
Storage Temperature Range .............................-65°C to +150°C
Soldering Temperature (soldering, 10s) ..........................+300°C
PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS
Number of Resistor Taps 32 Taps
End-to-End Resistance 15 20 25 kΩ
Bandwidth (Note 2) (Notes 3, 4) 500 kHz
Absolute Tolerance (Note 5) (Note 3) ±0.25 ±1 dB
Tap-to-Tap Tolerance (Note 6) (Note 3) ±0.05 ±0.1 dB
Total H ar m oni c D i stor ti on + N oi se THD + N
V
IN
= 1V
RMS
, f = 1kHz,
Tap = -6dB (Notes 3, 4)
0.002 %
Power-Supply Rejection Ratio PSRR -80 dB
End-to-End Resistance
Temperature Coefficient
TC
R
35 ppm/°C
Ratiometric Resistance
Temperature Coefficient
5 ppm/°C
Wiper Resistance R
W
V
DD
= 2.7V 400 1700 Ω
DIGITAL INPUTS
Input High Voltage V
IH
2.4 V
Input Low Voltage V
IL
0.8 V
Input Leakage Current ±1 µA
Input Capacitance 5pF
TIMING CHARACTERISTICS (Figures 1, 2)
U/D Mode to CS Setup t
CU
25 ns
CS to U/D Step Setup t
CI
25 ns
CS to U/D Step Hold
t
IC
25 ns
U/D Step Low Period
t
IL
25 ns
U/D Step High Period t
IH
25 ns
Up/Down Toggle Rate f
TOGGLE
7 MHz
Wiper Switching Time t
IW
Zero-crossing detection disabled (Note 4) 0.1 µs
Zero-Crossing Timeout 50 ms