DS1668 Datasheet, PDF (7/10 Pages) Dallas Semiconductor – ELECTRONIC DIGITAL RHEOSTAT

DS1668, DS1669, DS1669S
ABSOLUTE MAXIMUM RATINGS*
Voltage on Any Pin Relative to -V
Operating Temperature
Storage Temperature
Soldering Temperature
-V –0.5V + 8.0V
0°C to 70°C commercial; –40°C to +85°C industrial
–55°C to +125°C
260°C for 15 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
PARAMETER
SYMBOL MIN
+ Supply Voltage
+V
-V + 4.5
- Supply Voltage
-V
+V - 8.0
Rheostat Inputs
Logic Input 1
Logic Input 0
R_H,R_W,R_L
V_IH
V_IL
-V - 0.5
+2.4
DC ELECTRICAL CHARACTERISTICS
PARAMETER
SYMBOL MIN
+, - Supply Current
Supply Current, Idle State
Wiper Resistance
Wiper Current
Rheostat Current
Power–Up Time
Input Leakage
I_CC1
I_CC2
R_W
I_W
I_H, I_L
t_PU
I_LI
–1
AC ELECTRICAL CHARACTERISTICS
PARAMETER
SYMBOL MIN
Digital Input Pulse Width
t_DPW
1
Contact Pulse Width
t_CPW
1
Repetitive Input Pulse High Time
t_HPW
1
Continuous Input Pulse
t_CCP
1
(-40°C to +85°C)
TYP
MAX
UNITS NOTES
-V + 8.0
V
+V - 4.5
V
+V + 0.5
V
V
1, 2
+0.8
V
1, 2
(-40°C to +85°C; -V to +V = 4.5V to 8.0V)
TYP
MAX
UNITS NOTES
1
2
mA
3
65
µA
9
400
1000
Ω
1
mA
5
1
mA
5
10
µs
10
+1
µA
1
(-40°C to +85°C; -V to+V = 4.5V to 8.0V)
TYP
MAX
UNITS NOTES
DC
µs
1, 7, 8
DC
ms
1, 7, 8
DC
ms
1, 7, 8
DC
s
1, 7, 8
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