Datasheet

MAX5407
32-Tap Audio Logarithmic Taper
Digital Potentiometer
_______________________________________________________________________________________ 3
ELECTRICAL CHARACTERISTICS (continued)
(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)
PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS
POWER SUPPLIES
Supply Voltage V
DD
2.7 5.5 V
Active (Note 7) 100
Supply Current I
DD
All digital
inputs are
set to 0
S tand b y ( N ote 8) 0.35 1
µA
Note 1: All devices are 100% production tested at T
A
= +25°C and guaranteed by design for T
A
= T
MIN
to T
MAX
.
Note 2: Bandwidth is measured from H to W at the -6dB wiper tap position (see Typical Operating Characteristics).
Note 3: These specifications are only valid for I
W
less than 100nA of continuous wiper current.
Note 4: Measured with 20pF load capacitor.
Note 5: Absolute tolerance is defined as the variation of the attenuation for any given tap from its expected value.
Note 6: Tap-to-tap tolerance is defined as the variation between any two adjacent taps from the typical value of 1dB.
Note 7: Supply current when f
TOGGLE
= 2MHz.
Note 8: Supply current when wiper position is not changing.
Typical Operating Characteristics
(V
DD
= +5V, T
A
= +25°C, unless otherwise noted.)
100
150
250
200
300
350
021345
WIPER RESISTANCE vs.
WIPER VOLTAGE
MAX5407 toc01
WIPER VOLTAGE (V)
WIPER RESISTANCE (Ω)
V
DD
= +3V
V
DD
= +5V
-0.25
-0.20
-0.15
-0.10
-0.05
0
0.05
0.10
0.15
-40 -15 10 35 60 85
END-TO-END RESISTANCE %
CHANGE vs. TEMPERATURE
MAX5407 toc02
TEMPERATURE (°C)
ENE-TO-END RESISTANCE CHANGE (%)
-35
-30
-20
-25
-10
-5
-15
0
08124 1620242832
ATTENUATION vs. TAP POSITION
MAX5407 toc03
TAP POSITION
ATTENUATION (dB)