Datasheet

Dual, 256-Tap, Volatile, Low-Voltage,
Linear Taper Digital Potentiometer
MAX5392
8 ______________________________________________________________________________________
Typical Operating Characteristics (continued)
(V
DD
= 1.8V, T
A
= +25°C, unless otherwise noted.)
CROSSTALK vs. FREQUENCY
MAX5392 toc28
FREQUENCY (kHz)
CROSSTALK (dB)
1001010.1
-120
-100
-80
-60
-40
-20
0
-140
0.01 1000
100kI
50kI
10kI
CHARGE-PUMP FEEDTHROUGH
AT W_ vs. C
BYP
MAX5392 toc31
CAPACITANCE (pF)
VOLTAGE (nV
RMS
)
600400200
100
200
300
400
500
600
700
0
0 800
BYP RAMP TIME vs. C
BYP
MAX5392 toc30
BYP CAPACITANCE (µF)
RAMP TIME (ms)
0.080.050.040.02
20
40
60
80
100
120
0
0 0.10
TOTAL HARMONIC DISTORTION PLUS NOISE
vs. FREQUENCY
MAX5392 toc29
FREQUENCY (kHz)
THD+N (%)
1010.1
0.02
0.04
0.06
0.08
0.10
0.12
0.14
0.16
0.18
0.20
0
0.01 100
10kI
50kI
100kI
CHARGE-PUMP FEEDTHROUGH AT W_
vs. FREQUENCY
MAX5392 toc32
FREQUENCY (kHz)
AMPLITUDE (µV
RMS
)
800700600500400
0.1
0.2
0.3
0.4
0.5
0.6
0.7
0.8
0.9
1.0
0
300 900
MIDSCALE FREQUENCY
RESPONSE (10kI
)
FREQUENCY (kHz)
GAIN (dB)
10001001010.1
-20
-10
0
10
-30
0.01 10,000
MAX5392 toc25
V
DD
= 1.8V
V
DD
= 5V
V
IN
= 1V
P-P
C
W
= 10pF
MIDSCALE FREQUENCY
RESPONSE (50kI
)
FREQUENCY (kHz)
GAIN (dB)
10001001010.1
-20
-10
0
10
-30
0.01 10,000
MAX5392 toc26
V
DD
= 1.8V
V
DD
= 5V
V
IN
= 1V
P-P
C
W
= 10pF
MIDSCALE FREQUENCY
RESPONSE (100kI
)
FREQUENCY (kHz)
GAIN (dB)
10001001010.1
-20
-10
0
10
-30
0.01 10,000
MAX5392 toc27
V
DD
= 1.8V
V
DD
= 5V
V
IN
= 1V
P-P
C
W
= 10pF