Rainbow Electronics MAX5479 - Manual (Page 7)

MAX5477/MAX5478/MAX5479
Dual, 256-Tap, Nonvolatile, I
2
C-Interface,
Digital Potentiometers
_______________________________________________________________________________________ 7
MIDSCALE WIPER RESPONSE
vs. FREQUENCY (MAX5478)
MAX5477 toc17
FREQUENCY (kHz)
GAIN (dB)
100 10 1
-7
-6
-5
-4
-3
-2
-1
0
1
2
-8
0.1 1000
C W_ = 50pF
C W_ = 10pF
MIDSCALE WIPER RESPONSE
vs. FREQUENCY (MAX5479)
MAX5477/78/79 toc18
FREQUENCY (kHz)
GAIN (dB)
100 10 1
-4
-3
-2
-1
0
1
2
-5
0.1 1000
C W_ = 50pF
C W_ = 10pF
THD+N vs. FREQUENCY
(MAX5478)
MAX5477 toc19
FREQUENCY (kHz)
THD+N (%)
10 1 0.1
0.001
0.01
0.1
1
10
0.0001
0.01 100
MIDSCALE
THD+N vs. FREQUENCY
(MAX5479)
MAX5477 toc20
FREQUENCY (kHz)
THD+N (%)
10 1 0.1
0.001
0.01
0.1
1
10
0.0001
0.01 100
MIDSCALE
-0.5
-0.2
-0.3
-0.4
-0.1
0
0.1
0.2
0.3
0.4
0.5
-40 10 -15 35 60 85
END-TO-END RESISTANCE % CHANGE
vs. TEMPERATURE (MAX5478)
MAX5477/78/79 toc21
TEMPERATURE ( °C)
END-TO-END RESISTANCE CHANGE (%)
-0.5
-0.2
-0.3
-0.4
-0.1
0
0.1
0.2
0.3
0.4
0.5
-40 10 -15 35 60 85
END-TO-END RESISTANCE % CHANGE
vs. TEMPERATURE (MAX5479)
MAX5477/78/79 toc22
TEMPERATURE ( °C)
END-TO-END RESISTANCE CHANGE (%)
0
350
300
250
400
450
550
500
600
0 1.0 0.5 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0
SUPPLY CURRENT
vs. DIGITAL INPUT VOLTAGE
MAX5477/78/79 toc23
DIGITAL INPUT VOLTAGE (V)
SUPPLY CURRENT (
µ
A)
WP = GND
V CC = 5V
V CC = 3V 200
150
100
50
Typical Operating Characteristics (continued)
(V
DD
= +5V, H_ = V
DD
, L_ = GND, T
A
= +25°C, unless otherwise noted.)