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| CAT5419_13 Datasheet, PDF (4/15 Pages) ON Semiconductor – Dual Digital Potentiometer (POT) | |||
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CAT5419
Table 4. POTENTIOMETER CHARACTERISTICS (Over recommended operating conditions unless otherwise stated.)
Symbol
Parameter
Test Conditions
Min
Typ
Max
Units
RPOT
RPOT
RPOT
RPOT
Potentiometer Resistance (â00)
Potentiometer Resistance (â50)
Potentiometer Resistance (â10)
Potentiometer Resistance (â25)
Potentiometer Resistance Tolerance
100
kW
50
kW
10
kW
2.5
kW
ï±20
%
RPOT Matching
Power Rating
25ï°C, each pot
1
%
50
mW
IW
RW
RW
VTERM
VN
Wiper Current
Wiper Resistance
Wiper Resistance
Voltage on any RH or RL Pin
Noise
Resolution
IW = ï±3 mA @ VCC = 3 V
IW = ï±3 mA @ VCC = 5 V
VSS = 0 V
(Note 3)
GND
80
TBD
1.6
ï±6
mA
300
W
150
W
VCC
V
nV/ïHz
%
Absolute Linearity (Note 4)
RW(n)(actual)âR(n)(expected)
(Note 7)
ï±1
LSB
(Note 6)
Relative Linearity (Note 5)
RW(n+1)â[RW(n)+LSB]
(Note 7)
ï±0.2
LSB
(Note 6)
TCRPOT
Temperature Coefficient of RPOT
(Note 3)
ï±300
ppm/ï°C
TCRATIO
Ratiometric Temp. Coefficient
(Note 3)
20
ppm/ï°C
CH/CL/CW Potentiometer Capacitances
(Note 3)
10/10/25
pF
fc
Frequency Response
RPOT = 50 kW (Note 3)
0.4
MHz
3. This parameter is tested initially and after a design or process change that affects the parameter.
4. Absolute linearity is utilized to determine actual wiper voltage versus expected voltage as determined by wiper position when used as a
potentiometer.
5. Relative linearity is utilized to determine the actual change in voltage between two successive tap positions when used as a potentiometer.
It is a measure of the error in step size.
6. LSB = RTOT / 63 or (RH â RL) / 63, single pot
7. n = 0, 1, 2, ..., 63
Table 5. D.C. OPERATING CHARACTERISTICS (Over recommended operating conditions unless otherwise stated.)
Symbol
Parameter
Test Conditions
Min
Max
ICC
ISB
ILI
ILO
VIL
VIH
VOL1
Power Supply Current
Standby Current (VCC = 5 V)
Input Leakage Current
Output Leakage Current
Input Low Voltage
Input High Voltage
Output Low Voltage (VCC = 3 V)
fSCL = 400 kHz
VIN = GND or VCC; SDA Open
VIN = GND to VCC
VOUT = GND to VCC
IOL = 3 mA
â1
VCC x 0.7
1
1
10
10
VCC x 0.3
VCC + 1.0
0.4
Units
mA
mA
mA
mA
V
V
V
Table 6. PIN CAPACITANCE (Note 8)
(Applicable over recommended operating range from TA = 25ï°C, f = 1.0 MHz, VCC = +5.0 V (unless otherwise noted).)
Symbol
Test Conditions
Min
Typ
Max
Units
CI/O
Output Capacitance (SDA)
CIN
Input Capacitance (A0, A1, A2, A3, SCL, WP)
8
pF
6
pF
Conditions
VI/O = 0 V
VIN = 0 V
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