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CAT5261 Datasheet(PDF) 5 Page - ON Semiconductor

Part # CAT5261
Description  Dual Digital Potentiometer (POT)
Download  14 Pages
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Manufacturer  ONSEMI [ON Semiconductor]
Direct Link  http://www.onsemi.com
Logo ONSEMI - ON Semiconductor

CAT5261 Datasheet(HTML) 5 Page - ON Semiconductor

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CAT5261
http://onsemi.com
5
Table 4. POTENTIOMETER CHARACTERISTICS (Over recommended operating conditions unless otherwise stated.)
Symbol
Parameter
Test Conditions
Limits
Units
Min
Typ
Max
RPOT
Potentiometer Resistance (−00)
100
kW
RPOT
Potentiometer Resistance (−50)
50
kW
Potentiometer Resistance Tolerance
20
%
RPOT Matching
1
%
Power Rating
25C, each pot
50
mW
IW
Wiper Current
3
mA
RW
Wiper Resistance
IW = 3 mA @ VCC = 3 V
200
300
W
RW
Wiper Resistance
IW = 3 mA @ VCC = 5 V
100
150
W
VTERM
Voltage on any RH or RL Pin
0
VCC
V
VN
Noise
(Note 3)
nVHz
Resolution
0.4
%
Absolute Linearity (Note 4)
Rw(n)(actual)−R(n)(expected)
(Note 7)
1
LSB
(Note 6)
Relative Linearity (Note 5)
Rw(n+1)−[Rw(n)+LSB]
(Note 7)
0.2
LSB
(Note 6)
TCRPOT
Temperature Coefficient of RPOT
(Note 3)
300
ppm/C
TCRATIO
Ratiometric Temp. Coefficient
(Note 3)
20
ppm/C
CH/CL/CW
Potentiometer Capacitances
(Note 3)
10/10/25
pF
fc
Frequency Response
RPOT = 50 kW (Note 3)
0.4
MHz
1. The minimum DC input voltage is –0.5 V. During transitions, inputs may undershoot to –2.0 V for periods of less than 20 ns. Maximum DC
voltage on output pins is VCC +0.5 V, which may overshoot to VCC +2.0 V for periods of less than 20 ns.
2. Latch-up protection is provided for stresses up to 100 mA on address and data pins from –1 V to VCC +1 V.
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 / 255 or (RH − RL) / 255, single pot
7. n = 0, 1, 2, ..., 255
Table 5. D.C. OPERATING CHARACTERISTICS (VCC = +2.5 V to +6.0 V, unless otherwise specified.)
Symbol
Parameter
Test Conditions
Min
Max
Units
ICC1
Power Supply Current
fSCL = 400 kHz, SDA = Open
VCC = 6 V, Inputs = GNDs
1
mA
ICC2
Power Supply Current
fSCK = 400 kHz, SDA Open
5
mA
Non-volatile WRITE
VCC = 6 V, Input = GND
ISB
Standby Current (VCC = 5 V)
VIN = GND or VCC, SDA = Open
1
mA
ILI
Input Leakage Current
VIN = GND to VCC
10
mA
ILO
Output Leakage Current
VOUT = GND to VCC
10
mA
VIL
Input Low Voltage
−1
VCC x 0.3
V
VIH
Input High Voltage
VCC x 0.7
VCC + 1.0
V
VOL1
Output Low Voltage (VCC = 3 V)
IOL = 3 mA
0.4
V
VOH1
Output High Voltage
IOH = −1.6 mA
VCC – 0.8
V


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