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DS3903 Datasheet(PDF) 6 Page - Maxim Integrated Products

Part No. DS3903
Description  Triple 128-Position Nonvolatile Digital Potentiometer
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Maker  MAXIM [Maxim Integrated Products]
Homepage  http://www.maxim-ic.com
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DS3903 Datasheet(HTML) 6 Page - Maxim Integrated Products

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Triple 128-Position Nonvolatile
Digital Potentiometer
6
______________________________________________________________________
Typical Operating Characteristics (continued)
(VCC = 5.0V, 10k
Ω plots apply to both pot0 and pot2, TA = +25°C unless otherwise noted.)
VOLTAGE-DIVIDER ABSOLUTE LINEARITY
vs. WIPER SETTING (90k
)
WIPER SETTING
100
80
60
40
20
0.04
0.08
0.12
0.16
0.20
0
0
120
VOLTAGE-DIVIDER RELATIVE LINEARITY
vs. WIPER SETTING (90k
)
WIPER SETTING
100
80
60
40
20
0.01
0.02
0.03
0.04
0.05
0
0
120
Pin Description
PIN
NAME
FUNCTION
1
SDA
2-Wire Serial Data. Input/output for 2-wire data.
2
SCL
2-Wire Serial Clock. Input for 2-wire clock.
3A0
Address-Select Input. Determines device 2-wire address.
4WP
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.
5, 16, 17
18, 19
N.C.
No Connection
6, 8, 9
L0, L1, L2
Potentiometer Low Terminals. Voltages on these pins should remain between GND and +5.5V while
VCC is above +2.7V. Low terminals can be at potentials above the wiper or high terminals.
7, 12, 14
W1, W2, W0
Potentiometer Wiper Terminal. Voltages on these pins should remain between GND and +5.5V while
VCC is above +2.7V.
10
GND
Ground Terminal
11, 13, 15
H2, H1, H0
Potentiometer High Terminals. Voltages on these pins should remain between GND and +5.5V while
VCC is above +2.7V. High terminals can be at potentials below the low terminals.
20
VCC
Supply Voltage Terminal


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