CAT5140ZI-00-GT3 datasheet(3/10 Pages) ONSEMI

Part #	CAT5140ZI-00-GT3

Description	Single Channel 256 Tap Digital Potentiometer (POT)

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Table 5. POTENTIOMETER CHARACTERISTICS (Note 3) (VCC = +2.5 V to +5.5 V, −40_C to +85_C unless otherwise specified.)

Parameter

Test Conditions

Symbol

Limits

Units

Min

Typ

Max

Potentiometer Resistance ‘−50’

RPOT

50

kW

Potentiometer Resistance ‘−00’

RPOT

100

kW

Potentiometer Resistance Tolerance

20

%

Power Rating

25C

50

mW

Wiper Current

IW

3

mA

Wiper Resistance

IW = 3 mA

VCC = 3.3 V

RW

70

200

W

Integral Non-Linearity

Voltage Divider Mode

INL

1

LSB (Note 4)

Differential Non-Linearity

DNL

0.5

LSB (Note 4)

Integral Non-Linearity

Resistor Mode

RINL

1

LSB (Note 4)

Differential Non-Linearity

RDNL

0.5

LSB (Note 4)

Voltage on RH or RL

VSS = 0 V

VTERM

VSS

VCC

V

Resolution

0.4

%

Zero Scale Error

0

0.5

2

LSB (Note 5)

Full Scale Error

−2

−0.5

0

LSB (Note 5)

Temperature Coefficient of RPOT

(Notes 6, 7)

TCRPOT

100

ppm/C

Ratiometric Temp. Coefficient

(Notes 6, 7)

TCRATIO

20

ppm/C

Potentiometer Capacitances

(Notes 6, 7)

CH/CL/CW

10/10/25

pF

Frequency Response

RPOT = 50 kW (Note 8)

fc

0.4

MHz

3. Latch-up protection is provided for stresses up to 100 mA on address and data pins from −1 V to VCC +1 V.

4. LSB = RTOT / 255 or (RH − RL) / 255, single pot.

5. V(RW)255−V(RW)0]/255 (RW)255 = 0xFF, (RW)0 = 0x00.

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 a measure of the error in step size. It is determined by the actual change in voltage between two successive tap positions

when used as a potentiometer.

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

Table 6. D.C. OPERATING CHARACTERISTICS (VCC = +2.5 V to +5.5 V, −40C to +85C unless otherwise specified.)

Parameter

Test Conditions

Symbol

Min

Max

Units

Power Supply Current

Volatile Write & Read

fSCL = 400 kHz

VCC = 5.5 V, Inputs = GND

ICC1

1

mA

Power Supply Current

Non-volatile Write

fSCL = 400 kHz

VCC = 5.5 V, Inputs = GND

ICC2

3

mA

Standby Current

VCC = 5.0 V

ISB

2

mA

Input Leakage Current

VIN = GND to VCC

ILI

−10

+10

mA

Output Leakage Current

VOUT = GND to VCC

ILO

10

mA

Input Low Voltage

VIL

−1

VCC x 0.3

V

Input High Voltage

VIH

VCC x 0.7

VCC + 1.0

V

SDA Output Buffer Low Voltage

VCC = 2.5 V, IOL = 4 mA

VOL1

0.4

V

Power-On Recall

Minimum VCC for memory recall

VPOR

1.4

2.0

V

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