DS1868 Datasheet, PDF (9/14 Pages) Dallas Semiconductor – Dual Digital Potentiometer Chip

ABSOLUTE MAXIMUM RATINGS*
Voltage on Any Pin Relative to Ground (V_B=GND)
Voltage on Any Pin when V_B=-3.3V
Operating Temperature
Storage Temperature
Soldering Temperature
DS1868
-1.0V to +7.0V
-3.3V to +4.7V
-40°C to +85°C
-55°C to +125°C
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
PARAMETER
Supply Voltage
Input Logic 1
Input Logic 0
Ground
Resistor Inputs
Substrate Bias
SYMBOL
V_CC
V_IH
V_IL
GND
L, H, W
V_B
(-40°C to +85°C; V_CC=5.0V ± 10%)
MIN TYP MAX UNITS NOTES
4.5
5.5
V
1
2.7
3.3
15
2.0
V_CC+0.5 V
1, 2
-0.5
+0.8
V
1, 2
GND
GND
V
1
V_B-0.5
V_CC+0.5 V
2, 15
-3.3
GND
V
1, 15
DC ELECTRICAL CHARACTERISTICS
PARAMETER
SYMBOL
Supply Current
I_CC
Input Leakage
I_LI
Wiper Resistance
R_W
Wiper Current
I_W
Logic 1 Output @ 2.4 Volts
I_OH
Logic 0 Output @ 0.4 Volts
I_OL
Standby Current
I_STBY
(-40°C to +85°C; V_CC=5.0V ± 10%)
MIN TYP MAX UNITS NOTES
400
µA
12
-1
+1
µA
400 1000
Ω
1
mA
-1
mA
8, 9
4
mA
8, 9
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
9 of 14