Rainbow Electronics DS1805 - Manual (Page 3)

DS1805
Addressable Digital Potentiometer
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ANALOG RESISTOR CHARACTERISTICS
(V CC = 2.7V to 5.5V, T A = -40°C to +85°C)
PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS
End-to-End Resistor Tolerance (Note 5) -20 +20 %
Absolute Linearity (Note 6) -0.75 +0.75 LSB
Relative Linearity (Note 7) -0.3 +0.3 LSB
-3dB Cutoff Frequency f
CUTOFF (Note 8) Hz
Ratiometric Temperature Coefficient 8 ppm/°C
End-to-End Temperature Coefficient 550 ppm/°C
Capacitance C I 5 pF
AC ELECTRICAL CHARACTERISTICS
(V CC = 2.7V to 5.5V, T A = -40°C to +85°C)
PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS
Fast mode 0 400
SCL Clock Frequency (Note 9) f SCL
Standard mode 0 100
kHz
Fast mode 1.3 Bus Free Time Between STOP
and START Condition (Note 9)
t BUF
Standard mode 4.7
µs
Fast mode 0.6 Hold Time (Repeated) START
Condition (Notes 9, 10)
t HD:STA
Standard mode 4.0
µs
Fast mode 1.3 Low Period of SCL Clock
(Note 9)
t
LOW
Standard mode 4.7
µs
Fast mode 0.6 High Period of SCL Clock
(Note 9)
t HIGH
Standard mode 4.0
µs
Fast mode 0 0.9 Data Hold Time
(Notes 9, 11, 12)
t HD:DAT
Standard mode 0 0.9
µs
Fast mode 100 Data Setup Time
(Note 9)
t SU:DAT
Standard mode 250
ns
Fast mode 20 + 0.1C B 300 Rise Time of Both SDA and SCL
Signals (Notes 9, 13)
t
R
Standard mode 20 + 0.1C B 1000
ns
Fast mode 20 + 0.1C B 300 Fall Time of Both SDA and SCL
Signals (Notes 9, 13)
t F
Standard mode 20 + 0.1C B 300
ns
Fast mode 0.6 Setup Time for STOP Condition
(Note 9)
t SU:STO
Standard mode 4.0
µs
Capacitive Load for Each Bus
Line (Note 13)
C B 400 pF