Datasheet

MAX5408–MAX5411
Dual, Audio, Log Taper Digital Potentiometers
4 _______________________________________________________________________________________
Typical Operating Characteristics
(V
DD
= +3V (MAX5408/MAX5409), V
DD
= +5V (MAX5410/MAX5411), DOUT = floating)
988
990
989
991
994
995
993
992
996
0 1.0 1.5 2.0 2.50.5 3.0 3.5 4.0 4.5 5.0
WIPER RESISTANCE vs.
WIPER VOLTAGE
MAX5408-11 toc01
WIPER VOLTAGE (V)
WIPER RESISTANCE (Ω)
TAP POSITION 31
V
DD
= 5V = V
LOGIC
, L_ = GND
-0.20
-0.15
-0.10
-0.05
0
0.05
0.10
0.15
0.20
-40 -15 10 35 60 85
END-TO-END RESISTANCE % CHANGE
vs. TEMPERATURE
MAX5408-11 toc02
TEMPERATURE (°C)
END-TO-END RESISTANCE CHANGE (%)
-70
-60
-40
-50
-20
-10
-30
0
081241620242832
ATTENUATION vs. TAP POSITION
MAX5408-11 toc03
TAP POSITION
ATTENUATION (dB)
20
25
30
35
40
45
50
55
60
-40 -15 10 35 60 85
TOTAL SUPPLY CURRENT
VS. TEMPERATURE
MAX5408-11 toc04
TEMPERATURE (°C)
TOTAL SUPPLY CURRENT (µA)
ZERO-CROSSING ENABLED
I
TOTAL
= I
DD
+ I
LOGIC
ACTIVE MODE
4µs/div
TAP-TO-TAP SWITCHING TRANSIENT
(ZERO-CROSSING DISABLE)
V
W_
2V/div
CS
2V/div
MAX5408-11 toc05
V
H
_ = 5V
V
L
_ = 0
0
0.10
0.05
0.20
0.15
0.25
0.30
2.5 3.5 4.03.0 4.5 5.0 5.5
LOGIC CURRENT
vs. LOGIC VOLTAGE
MAX5408-11 toc06
LOGIC SUPPLY VOLTAGE (V)
LOGIC SUPPLY CURRENT (µA)
STANDBY MODE
SCLK = GND