Rainbow Electronics MAX5499 - Manual (Page 7)

MAX5494–MAX5499
10-Bit, Dual, Nonvolatile, Linear-Taper
Digital Potentiometers
_______________________________________________________________________________________ 7
Typical Operating Characteristics (continued)
(V
DD
= +5.0V, V
SS
= 0, T
A
= +25°C, unless otherwise noted.)
WIPER RESISTANCE vs. WIPER VOLTAGE
(VARIABLE RESISTOR)
MAX5494 toc10
WIPER VOLTAGE (V)
R
W
(Ω
)
4 3 2 1
17
19
20
21
22
16
0 5
CODE IS 00 0000 0000 V
DD
= 5V
18
END-TO-END RESISTANCE (R HL )
% CHANGE vs. TEMPERATURE
(VOLTAGE-DIVIDER)
MAX5494 toc11
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
WIPER-TO-END RESISTANCE (R WL )
% CHANGE vs. TEMPERATURE
(VARIABLE RESISTOR)
MAX5494 toc12
TEMPERATURE ( °C)
WIPER-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
CODE IS 11 1111 1111
STANDBY SUPPLY CURRENT
vs. TEMPERATURE
MAX5494 toc13
TEMPERATURE ( °C)
I DD
(µ
A)
60 35 10 -15
0.3
0.6
0.9
1.2
1.5
0
-40 85
V DD = 5.25V
DIGITAL SUPPLY CURRENT
vs. DIGITAL INPUT VOLTAGE
MAX5494 toc14
DIGITAL INPUT VOLTAGE (V)
I DD
(µ
A)
4 3 2 1
1
10
100
1000
10,000
0.1
0 5
V DD = 5V
RATIOMETRIC TEMPERATURE
COEFFICIENT vs. CODE
MAX5494 toc15
CODE
RATIOMETRIC TEMPCO (ppm/
°C)
896 768 512 640 256 384 128
20
40
60
80
100
120
140
160
180
200
0
0 1024
VOLTAGE-DIVIDER
V
DD = 3V
T A = -40 °C TO +85°C
10k Ω
50k Ω
VARIABLE RESISTOR TEMPERATURE
COEFFICIENT vs. CODE
MAX5494 toc16
CODE
TC
VR
(ppm/
°C)
896 768 512 640 256 384 128
100
200
300
400
500
600
700
0
0 1024
V DD = 3V
T A = -40 °C TO +85°C
10k Ω
50k Ω
TAP-TO-TAP SWITCHING TRANSIENT
(MAX5494/MAX5498)
MAX5494 toc17
V W_
20mV/div
1 µs/div
CS
2V/div
H_ = V DD
L_ = GND
FROM CODE 01111 11111
TO CODE 10000 00000
C
W_ = 10pF
TAP-TO-TAP SWITCHING TRANSIENT
(MAX5495/MAX5499)
MAX5494 toc18
V W_
20mV/div
4 µs/div
H_ = V
DD
L_ = GND
FROM CODE 01111 11111
TO CODE 10000 00000
C
W_ = 10pF
CS
2V/div