Rainbow Electronics MAX5419 - Manual (Page 5)

MAX5417/MAX5418/MAX5419
256-Tap, Nonvolatile, I 2 C-Interface,
Digital Potentiometers
_______________________________________________________________________________________ 5
TAP-TO-TAP SWITCHING TRANSIENT
MAX5417 toc04
W
10mV/div
SDA
2V/div
1 µs/div
MAX5417
C
L = 10pF
FROM TAP 127
TO TAP 128
H = V
DD
WIPER TRANSIENT AT POWER-ON
(MAX5417)
MAX5417 toc05
W
1V/div
V DD
2V/div
4 µs/div
C L = 10pF
TAP = 128
H = V
DD
STANDBY SUPPLY CURRENT
vs. TEMPERATURE
MAX5417 toc01
TEMPERATURE ( °C)
STANDBY SUPPLY CURRENT (
µ
A)
60 35 10 -15
0.2
0.4
0.6
0.8
1.0
0
-40 85
WIPER RESISTANCE vs. TAP POSITION
(MAX5417)
MAX5417 toc02
TAP POSITION
RESISTANCE (
Ω
)
224 192 160 128 96 64 32
100
200
300
400
500
600
700
0
0 256
V DD = 2.7V
I
SRC
= 50 µA
END-TO-END RESISTANCE % CHANGE
vs. TEMPERATURE
MAX5417 toc03
TEMPERATURE ( °C)
END-TO-END RESISTANCE % CHANGE
60 35 10 -15
-0.8
-0.6
-0.4
-0.2
0
0.2
0.4
0.6
0.8
1.0
-1.0
-40 85
Typical Operating Characteristics
(V
DD
= +5V, T
A
= +25°C, unless otherwise noted.)
MIDSCALE WIPER RESPONSE vs. FREQUENCY
(MAX5417)
MAX5417 toc06
FREQUENCY (kHz)
WIPER RESPONSE (dB)
100 10
-25
-20
-10
-15
-5
MAX5417
TAP = 128
C L = 50pF
C L = 10pF
0
-30
1 1000
DNL vs. TAP POSITION
(MAX5417)
MAX5417 toc07
TAP POSITION
RESISTANCE DNL (LSB)
224 192 160 128 96 64 32
-0.2
-0.1
0
0.1
0.2
0.3
0.4
0.5
-0.3
0 256
VARIABLE-RESISTOR MODE