DS1868
9 of 14
ABSOLUTE MAXIMUM RATINGS*
Voltage on Any Pin Relative to Ground (VB=GND)
-1.0V to +7.0V
Voltage on Any Pin when VB=-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
VCC
4.5
2.7
5.5
3.3
V
1
15
Input Logic 1
VIH
2.0
VCC+0.5
V
1, 2
Input Logic 0
VIL
-0.5
+0.8
V
1, 2
Ground
GND
V
1
Resistor Inputs
L, H, W
VB-0.5
VCC+0.5
V
2, 15
Substrate Bias
VB
-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
ICC
400
A
12
Input Leakage
ILI
-1
+1
A
Wiper Resistance
RW
400
1000
Wiper Current
IW
1
mA
Logic 1 Output @ 2.4 Volts
IOH
-1
mA
8, 9
Logic 0 Output @ 0.4 Volts
IOL
4
mA
8, 9
Standby Current
ISTBY
1
A
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
FCUTOFF
Hz
7
Noise Figure
11
Temperature Coefficient
750
ppm/C