DS1868
9 of 14
ABSOLUTE MAXIMUM RATINGS*
Voltage on Any Pin Relative to Ground (V
B
=GND) -1.0V to +7.0V
Voltage on Any Pin when V
B
=-3.3V -3.3V to +4.7V
Operating Temperature -40°C to +85°C
Storage Temperature -55°C to +125°C
Soldering Temperature 260°C for 10 seconds
* 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
15
Input Logic 1 V
IH
2.0 V
CC
+0.5 V 1, 2
Input Logic 0 V
IL
-0.5 +0.8 V 1, 2
Ground GND GND GND V 1
Resistor Inputs L, H, W V
B
-0.5 V
CC
+0.5 V 2, 15
Substrate Bias V
B
-3.3 GND V 1, 15
DC ELECTRICAL CHARACTERISTICS (-40°C to +85°C; V
CC
=5.0V ± 10%)
PARAMETER SYMBOL MIN TYP MAX UNITS NOTES
Supply Current I
CC
400
µA
12
Input Leakage I
LI
-1 +1
µA
Wiper Resistance R
W
400 1000
Ω
Wiper Current I
W
1 mA
Logic 1 Output @ 2.4 Volts I
OH
-1 mA 8, 9
Logic 0 Output @ 0.4 Volts I
OL
4 mA 8, 9
Standby Current I
STBY
1
µA
14
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 % 16
Absolute Linearity
±0.75
LSB 4
Relative Linearity
±0.3
LSB 5
-3 dB Cutoff Frequency F
CUTOFF
Hz 7
Noise Figure 11
Temperature Coefficient 750 ppm/C
