Rainbow Electronics MAX5479 - Manual (Page 5)

MAX5477/MAX5478/MAX5479
Dual, 256-Tap, Nonvolatile, I
2
C-Interface,
Digital Potentiometers
_______________________________________________________________________________________ 5
SUPPLY CURRENT
vs. TEMPERATURE
MAX5477/78/79 toc01
TEMPERATURE ( °C)
SUPPLY CURRENT (
µ
A)
60 35 10 -15
0.1
0.2
0.3
0.4
0.5
0.6
0.7
0.8
0.9
1.0
0
-40 85
V DD = 5V
V DD = 3V
0
100
50
200
150
300
250
350
450
400
500
0 64 96 32 128 160 192 224 256
WIPER RESISTANCE
vs. INPUT CODE
MAX5477/78/79 toc02
INPUT CODE
WIPER RESISTANCE (
Ω
)
TAP-TO-TAP SWITCHING TRANSIENT
MAX5477/78/79 toc03
1 µs/div
SDA
2V/div
W_
20mV/div
MAX5478
C
L = 10pF
H_ = V DD
FROM TAP 00 TO TAP 04
TAP-TO-TAP SWITCHING TRANSIENT
MAX5477/78/79 toc04
400ns/div
SDA
2V/div
W_
20mV/div
MAX5479
C
W_ = 10pF
H_ = V
DD
FROM TAP 00 TO TAP 04
WIPER TRANSIENT AT POWER-ON
MAX5477/78/79 toc05
4 µs/div
V DD
2V/div
W_
1V/div
MAX5478
TAP = 128
WIPER TRANSIENT AT POWER-ON
MAX5477/78/79 toc06
2 µs/div
V DD
2V/div
W_
1V/div
MAX5479
TAP = 128
-0.3
-0.2
-0.1
0
0.1
0.2
0.3
0 64 32 96 128 160 192 224 256
INTEGRAL NONLINEARITY
vs. CODE (VDM MODE)
MAX5477/78/79 toc07
CODE
INL (LSB)
MAX5478
-0.3
-0.2
-0.1
0
0.1
0.2
0.3
0 64 32 96 128 160 192 224 256
DIFFERENTIAL NONLINEARITY
vs. CODE (VDM MODE)
MAX5477/78/79 toc08
CODE
DNL (LSB)
MAX5478
-0.3
-0.2
-0.1
0
0.1
0.2
0.3
0 64 32 96 128 160 192 224 256
INTEGRAL NONLINEARITY
vs. CODE (VRM MODE)
MAX5477/78/79 toc09
CODE
INL (LSB)
MAX5478
Typical Operating Characteristics
(V
DD
= +5V, H_ = V
DD
, L_ = GND, T
A
= +25°C, unless otherwise noted.)