CAT5241WI-50 datasheet(3/16 Pages) ONSEMI

No. de pieza	CAT5241WI-50

Descripción Electrónicos	Quad Digitally Programmable Potentiometer with 64 Taps and I짼C Interface

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CAT5241

3

Doc. No. MD-2011 Rev. Q

Characteristics subject to change without notice

ABSOLUTE MAXIMUM RATINGS

(1)

Parameter

Ratings

Units

Temperature Under Bias

-55 to +125

°C

Storage Temperature

-65 to +150

°C

Voltage on any Pin with Respect to VSS

(2)(3)

-2.0 to +VCC +2.0

V

VCC with Respect to Ground

-2.0 to +7.0

V

Package Power Dissipation Capability (TA = 25°C)

1.0

W

Lead Soldering Temperature (10s)

300

°C

Wiper Current

±12

mA

Recommended Operating Conditions

Vcc = +2.5V to +6V

Parameter

Ratings

Units

Operating Ambient Temperature (Industrial)

-40 to +85

°C

POTENTIOMETER CHARACTERISTICS

Over recommended operating conditions unless otherwise stated.

Symbol

Parameter

Test Conditions

Min

Typ

Max

Units

RPOT

Potentiometer Resistance (-00)

100

k

Ω

RPOT

Potentiometer Resistance (-50)

50

k

Ω

RPOT

Potentiometer Resistance (-10)

10

k

Ω

RPOT

Potentiometer Resistance (-25)

2.5

k

Ω

Potentiometer Resistance Tolerance

±20

%

RPOT Matching

1

%

Power Rating

25°C, each pot

50

mW

IW

Wiper Current

±6

mA

RW

Wiper Resistance

IW = ±3mA @ VCC =3V

300

Ω

RW

Wiper Resistance

IW = ±3mA @ VCC = 5V

80

150

Ω

VTERM

Voltage on any RH or RL Pin

VSS = 0V

GND

VCC

VN

Noise

(4)

TBD

nV/

√Hz

Resolution

1.6

%

Absolute Linearity

(5)

RW(n)(actual) - R(n)(expected)

(8)

±1

LSB

(7)

Relative Linearity

(6)

RW(n+1) - [RW(n)+LSB]

(8)

±0.2

LSB

(7)

TCRPOT

Temperature Coefficient of RPOT

(4)

±300

ppm/°C

TCRATIO

Ratiometric Temp. Coefficient

(4)

20

ppm/°C

CH/CL/CW Potentiometer Capacitances

(4)

10/10/25

pF

fc

Frequency Response

RPOT = 50kΩ

(4)

0.4

MHz

Notes:

(1) Stresses above those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings

only, and functional operation of the device at these or any other conditions outside of those listed in the operational sections of this

specification is not implied. Exposure to any absolute maximum rating for extended periods may affect device performance and reliability.

(2) The minimum DC input voltage is –0.5V. During transitions, inputs may undershoot to –2.0V for periods of less than 20ns. Maximum DC

voltage on output pins is VCC +0.5V, which may overshoot to VCC +2.0V for periods of less than 20ns.

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

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

(5) Absolute linearity is utilized to determine actual wiper voltage versus expected voltage as determined by wiper position when used as a

potentiometer.

(6) 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.

(7) LSB = RTOT / 63 or (RH - RL) / 63, single pot

(8) n = 0, 1, 2, ..., 63

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