Datasheet

DS3930
Hex Nonvolatile Potentiometer with
I/O and Memory
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AC ELECTRICAL CHARACTERISTICS
(V
CC
= +2.7V to +5.5V; T
A
= -40°C to +85°C, unless otherwise specified.)
PARAMETER
SYMBOL
CONDITIONS
MIN TYP MAX
UNITS
Fast mode 0 400
SCL Clock Frequency (Note 3) f
SCL
Standard mode 0 100
kHz
Fast mode 1.3
Bus Free Time Between STOP
and START Condition (Note 3)
t
BUF
Standard mode 4.7
µs
Fast mode 0.6
Hold Time (Repeated) START
Condition (Notes 3 and 4)
t
HD:STA
Standard mode 4.0
µs
Fast mode 1.3
Low Period of SCL Clock (Note 3)
t
LOW
Standard mode 4.7
µs
Fast mode 0.6
High Period of SCL Clock
(Note 3)
t
HIGH
Standard mode 4.0
µs
ANALOG RESISTOR CHARACTERISTICS
(V
CC
= +2.7V to +5.5V; T
A
= -40°C to +85°C, unless otherwise specified.)
PARAMETER
SYMBOL
CONDITIONS
MIN TYP MAX
UNITS
End-to-End Resistance T
A
= +25°C (three 50kΩ pots in parallel)
13.2 16.5 19.8
kΩ
Wiper Resistance R
W
400 1000
Ω
Factory Default Wiper Setting FF Hex
Factory Default I/O Setting 0F Hex
POT-to-POT Matching -1 +1 LSB
Differential Linearity
-0.5 +0.5
LSB
Integral Linearity -1 +1 LSB
End-to-End Temperature
Coefficient
3 potentiometers in parallel
-250
0
+250
ppm/°C
Ratiometric Temperature
Coefficient
2
ppm/°C