DS1803 Datasheet, PDF (7/11 Pages) Dallas Semiconductor – Addressable Dual Digital Potentiometer

ANALOG RESISTOR CHARACTERISTICS
PARAMETER
SYMBOL MIN
End-to-End Resistor Tolerance
-20
Absolute Linearity
Relative Linearity
-3 dB Cutoff Frequency
f_CUTOFF
Temperature Coefficient
Capacitance
C_I
DS1803
(-40°C to +85°C;V_CC=2.7V to 5.5V)
TYP
MAX UNITS NOTES
+20
%
17
±0.75
LSB
13
±0.3
LSB
14
Hz
11
750
ppm/C
5
pF
AC ELECTRICAL CHARACTERISTICS (-40°C to +85°C;V_CC=2.7V to 5.5V)
PARAMETER
SYMBOL MIN
TYP MAX UNITS NOTES
SCL Clock Frequency
Bus Free Time Between
STOP and START Condition
Hold Time (Repeated)
START Condition
Low Period of SCL Clock
High Period of SCL Clock
Data Hold Time
Data Setup Time
Rise Time of both SDA and
SCL Signals
Fall Time of both SDA and
SCL Signals
f_SCI
t_BUF
t_HD;STA
t_LOW
t_HIGH
t_HD;DAT
t_HD;DAT
t_R
t_F
0
0
1.3
4.7
0.6
4.0
1.3
4.7
0.6
4.0
0
0
100
250
20+1C_B
20+1C_B
400
100
kHz
16
17
µs
16
17
µs
5
µs
µs
0.9
µs
6,7
ns
8
300
1000
ns
9
300
300
ns
9
Setup Time for STOP
Condition
t_SU;STO
0.6
4.0
µs
Capacitive Load for each Bus
Line
C_B
400
pF
NOTES:
1. All voltages are referenced to ground.
2. I/O pins of fast mode devices must not obstruct the SDA and SCL lines if V_DD is switched off.
3. I_CC specified with SDA pin open SCL = 400 kHz clock rate.
4. I_CC specified with V_CC at 5.0V and SDA, SCL = 5.0V, -40°C to +85°C.
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