Datasheet

DS1868B
ABSOLUTE MAXIMUM RATINGS*
Voltage on Any Pin Relative to Ground (V
B
= GND) ......................................................... -0.5V to +7.0V
Voltage on Any Pin when V
B
= -3.3V ......................................................................... -3.3V to (V
CC
+ 0.5)
Operating Temperature ....................................................................................................... -40°C to +85°C
Storage Temperature ......................................................................................................... -55°C to +125°C
Soldering Temperature .......................................................................................................... 260°C for 10s
* This is a stress rating only and functional operation of the device at these or any other conditions
above those indicated in the operation sections of this specification is not implied. Exposure to
absolute maximum rating conditions for extended periods of time may affect reliability.
RECOMMENDED DC
OPERATING CONDITIONS (-40°C to +85°C; V
CC
= 5.0V ±10%)
PARAMETER SYMBOL MIN TYP MAX UNITS NOTES
Supply Voltage V
CC
4.5
2.7
5.5
3.3
V 1
9
Input Logic 1 V
IH
+0.7 x
Vcc
V
CC
+
0.5
V 1, 2
Input Logic 0 V
IL
-0.5 +0.3 x
Vcc
V 1, 2
Ground GND GND GND V 1
Resistor Inputs
L, H, W
V
B
-
0.5
V
CC
+
0.5
V
2, 9
Substrate Bias V
B
-3.3 GND V 1, 9
DC ELECTRICAL CHARACTERISTICS (-40°C to +85°C; V
CC
= 5.0V ±10%)
PARAMETER SYMBOL MIN TYP MAX UNITS NOTES
Supply Current
I
CC
2.1
5
mA
7
Input Leakage I
LI
-1 +1
µA
11
Wiper Resistance R
W
900 2000
Ω
Wiper Current I
W
1 mA
Logic 1 Output at 2.4V
I
OH
-1
mA
5
Logic 0 Output at 0.4V I
OL
4 mA 5
Standby Current I
STBY
0.6 2
µA
8
ANALOG RESISTOR CHARACTERISTICS (-40°C to +85°C; V
CC
= 5.0V ±10%)
PARAMETER
SYMBOL
MIN
TYP
MAX
UNITS
NOTES
End-to-End Resistor Tolerance -20 +20 % 10
Integral Nonlinearity (INL) -1.6
±0.75
+1.6 LSB 3
Differential Nonlinearity (DNL
-0.5
±0.3
+0.5
LSB
4
Temperature Coefficient
750
ppm/°C
Maxim Integrated ............................................................................................................................................................................................. 8