Rainbow Electronics DS1845 - Manual (Page 10)

DS1845
10 of 13
DC ELECTRICAL CHARACTERISTICS (-40°C to +85°C; V
CC
=2.7V to 5.5V)
PARAMETER SYMBOL CONDITION MIN TYP MAX UNITS NOTES
Supply Current
Active I
CC
0.5 mA 16,17
Input Leakage I
LI
-1 +1 µ A
Wiper Resistance
3V
5V
R
W
500
250
1000
500
Ω
Wiper Current I
W
1 mA
Input Logic 1 V
IH
0.7 V
CC
V
CC
+0.5 V 1,2
Input Logic 0 V
IL
GND-0.5 0.3 V
CC
V 1,2
Input Logic levels
A0, A1, A2 Input Logic 1
Input Logic 0
0.7 V
CC
GND-0.5
V
CC
+0.5
0.3 V
CC
V 4
Input Current each
I/O pin
0.4
I/O
<0.9V
DD
-10 +10 µ A
Standby Current
3V
5V
I
stby
15
25 40 µ A
5
V
OL1
3 mA sink
current
0.0 0.4 V Low Level Output
Voltage (SDA)
V
OL2
6 mA sink
current
0.0 0.6 V
I/O Capacitance C
I/O
10 pF
Pulse width of spikes
which must be
suppressed by the
input filter t
SP
Fast Mode 0 50 ns
WP Internal Pull Up
Resistance, R
wp
R
wp
40 65 100 k Ω
ANALOG RESISTOR CHARACTERISTICS (-40°C to +85°C; V
CC
=2.7V to 5.5V)
PARAMETER SYMBOL CONDITION MIN TYP MAX UNITS NOTES
End-to-End
Resistance -20 +20 % 19
Absolute Linearity -0.5 +0.5 LSB 13
Relative Linearity -0.25 +0.25 LSB 14
-3 dB Cutoff
frequency f
cutoff
kHz 12
Temperature
Coefficient 750 ppm/°C 15