CAT5251(2013) Просмотр технического описания (PDF) - ON Semiconductor
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CAT5251 Datasheet PDF : 15 Pages
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CAT5251
Table 4. POTENTIOMETER CHARACTERISTICS (Over recommended operating conditions unless otherwise stated.)
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
25C, each pot
1
%
50
mW
IW
Wiper Current
RW
Wiper Resistance
VTERM
VN
Voltage on any RH or RL Pin
Noise
Resolution
3
mA
IW = 3 mA @ VCC = 3 V
200
300
W
IW = 3 mA @ VCC = 5 V
100
150
W
VSS = 0 V
GND
VCC
V
(Note 3)
nV/Hz
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)
0.5
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
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 (Over recommended operating conditions unless otherwise stated.)
Symbol
Parameter
Test Conditions
Min
Typ
Max
ICC1
Power Supply Current
fSCK = 2.5 MHz, SO Open
1
VCC = 6 V Inputs = GND
ICC2
Power Supply Current
fSCK = 2.5 MHz, SO = Open
5
Non-volatile Write
VCC = 6 V Inputs = GND
ISB
ILI
ILO
VIL
VIH
VOL1
VOH1
Standby Current (VCC = 5.0 V)
Input Leakage Current
Output Leakage Current
Input Low Voltage
Input High Voltage
Output Low Voltage (VCC = 3 V)
Output High Voltage (VCC = 6 V)
VIN = GND or VCC; SO Open
VIN = GND to VCC
VOUT = GND to VCC
IOL = 3 mA
IOH = −1.6 mA
−1
VCC x 0.7
VCC − 0.8
1
10
10
VCC x 0.3
VCC + 1.0
0.4
Units
mA
mA
mA
mA
mA
V
V
V
V
Table 6. PIN CAPACITANCE (Note 8)
(Applicable over recommended operating range from TA = 25C, f = 1.0 MHz, VCC = +5.0 V (unless otherwise noted).)
Symbol
Parameter
Test Conditions
Min
Typ
Max
COUT
Output Capacitance (SO)
VOUT = 0 V
8
CIN
Input Capacitance (CS, SCK, SI, WP, HOLD, A0, A1
VIN = 0 V
6
Units
pF
pF
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