DS3903 Maxim Integrated Products, DS3903 Datasheet - Page 6

• Manufacturer Part Number: DS3903
• Description: DS3903 Triple 128-Position Nonvolatile Digital Potentiometer
• Manufacturer: Maxim Integrated Products

Triple 128-Position Nonvolatile
Digital Potentiometer
(VCC = 5.0V, 10kΩ plots apply to both pot0 and pot2, TA = +25°C unless otherwise noted.)
6
11, 13, 15
5, 16, 17
7, 12, 14
18, 19
6, 8, 9
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PIN
10
20
1
2
3
4
W1, W2, W0
H2, H1, H0
L0, L1, L2
NAME
GND
SDA
N.C.
SCL
V
WP
A0
CC
0.05
0.04
0.03
0.02
0.01
0
VOLTAGE-DIVIDER RELATIVE LINEARITY
0
2-Wire Serial Data. Input/output for 2-wire data.
2-Wire Serial Clock. Input for 2-wire clock.
Address-Select Input. Determines device 2-wire address.
Write-Protect Input. Must be grounded to write to the potentiometer registers. An internal pullup locks
the potentiometer positions if this pin is not connected.
No Connection
Potentiometer Low Terminals. Voltages on these pins should remain between GND and +5.5V while
V
Potentiometer Wiper Terminal. Voltages on these pins should remain between GND and +5.5V while
V
Ground Terminal
Potentiometer High Terminals. Voltages on these pins should remain between GND and +5.5V while
V
Supply Voltage Terminal
CC
CC
CC
vs. WIPER SETTING (90k
20
is above +2.7V. Low terminals can be at potentials above the wiper or high terminals.
is above +2.7V.
is above +2.7V. High terminals can be at potentials below the low terminals.
40
WIPER SETTING
60
80
Typical Operating Characteristics (continued)
100
Ω
)
120
0.20
0.16
0.12
0.08
0.04
0
FUNCTION
VOLTAGE-DIVIDER ABSOLUTE LINEARITY
0
vs. WIPER SETTING (90k
20
40
WIPER SETTING
60
80
100
Ω
)
Pin Description
120