CAT5261 Ver la hoja de datos (PDF) - ON Semiconductor
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CAT5261 Datasheet PDF : 14 Pages
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CAT5261
Table 4. POTENTIOMETER CHARACTERISTICS (Over recommended operating conditions unless otherwise stated.)
Limits
Symbol
Parameter
Test Conditions
Min
Typ
Max
Units
RPOT
RPOT
Potentiometer Resistance (−00)
Potentiometer Resistance (−50)
Potentiometer Resistance Tolerance
100
kW
50
kW
±20
%
RPOT Matching
Power Rating
25°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
IW = ±3 mA @ VCC = 3 V
IW = ±3 mA @ VCC = 5 V
(Note 3)
±3
mA
200
300
W
100
150
W
0
VCC
V
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
Product parametric performance is indicated in the Electrical Characteristics for the listed test conditions, unless otherwise noted. Product
performance may not be indicated by the Electrical Characteristics if operated under different conditions.
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