CAT5132 Ver la hoja de datos (PDF) - ON Semiconductor

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CAT5132

16 Volt Digital Potentiometer (POT) with 128 Taps and I2C Interface

ON Semiconductor 

CAT5132

Table 4. POTENTIOMETER CHARACTERISTICS (Over recommended operating conditions unless otherwise stated.)

Limits

Symbol

Parameter

Test Conditions

Min

Typ

Max Units

RPOT

RPOT

RPOT

RTOL

Potentiometer Resistance (100 kW)

Potentiometer Resistance (50 kW)

Potentiometer Resistance (10 kW)

Potentiometer Resistance Tolerance

Power Rating

25C

100

kW

50

kW

10

kW

20

%

50

mW

IW

Wiper Current

RW Wiper Resistance

VTERM

RES

Voltage on RW, RH or RL

Resolution

IW = 1 mA @ V+ = 12 V

IW = 1 mA @ V+ = 8 V

GND = 0 V; V+ = 8 V to 16 V

3

mA

70

150

W

110

200

W

GND

V+

V

0.78

%

ALIN Absolute Linearity (Note 6)

VW(n)(actual) − VW(n)(expected) (Notes 9, 10)

1

LSB

(Note 8)

RLIN Relative Linearity (Note 7)

VW(n+1) − [VW(n) + LSB] (Notes 9, 10)

0.5

LSB

(Note 8)

TCRPOT Temperature Coefficient of RPOT

(Note 5)

300

ppm/C

TCRatio Ratiometric Temperature Coefficient

(Note 5)

30 ppm/C

CH/CL/CW Potentiometer Capacitances

(Note 5)

10/10/25

pF

fc

Frequency Response

RPOT = 50 kW

0.4

MHz

5. This parameter is tested initially and after a design or process change that affects the parameter.

6. Absolute linearity is utilized to determine actual wiper voltage versus expected voltage as determined by wiper position when used as a

potentiometer.

7. Relative linearity is utilized to determine the actual change in voltage between two successive tap positions when used as a potentiometer.

8. LSB = (RHM − RLM)/127; where RHM and RLM are the highest and lowest measured values on the wiper terminal.

9. n = 1, 2, ..., 127

10. V+ @ RH; 0 V @ RL; VW measured @ RW with no load.

Table 5. D.C. ELECTRICAL CHARACTERISTICS (Over recommended operating conditions unless otherwise stated.)

Symbol

Parameter

Test Conditions

Min

Max

ICC1 Power Supply Current

FSCL = 400 kHz, SDA Open,

1

(Volatile Write/Read)

VCC = 5.5 V, Input = GND

ICC2 Power Supply Current

FSCL = 400 kHz, SDA Open,

3.0

(Nonvolatile WRITE)

VCC = 5.5 V, Input = GND

ISB(VCC)

ISB(V+)

ILI

ILO

VIL

VIH

VOL1

Standby Current (VCC = 5 V)

V+ Standby Current

Input Leakage Current

Output Leakage Current

Input Low Voltage

Input High Voltage

Output Low Voltage (VCC = 3.0)

VIN = GND or VCC, SDA = VCC

VCC = 5 V, V+ = 16 V

VIN = GND to VCC

VOUT = GND to VCC

IOL = 3 mA

−1

VCC x 0.7

5

10

10

10

VCC x 0.3

VCC + 1.0

0.4

Units

mA

mA

mA

mA

mA

mA

V

V

V

Table 6. CAPACITANCE (TA = 25C, f = 1.0 MHz, VCC = 5.0 V)

Symbol

Parameter

Test Conditions

CI/O Input/Output Capacitance (SDA)

CIN Input Capacitance (A0, A1, SCL)

VI/O = 0 V (Note 11)

VIN = 0 V (Note 11)

Min

Max

Units

8

pF

6

pF

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