CAT5259YI-50TE13 datasheet(3/16 Pages) CATALYST

Part #	CAT5259YI-50TE13

Description	Quad Digitally Programmable Potentiometers (DPP) with 256 Taps and 2-wire Interface

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Manufacturer	CATALYST [Catalyst Semiconductor]

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CAT5259

Document No. 2000, Rev. F

ABSOLUTE MAXIMUM RATINGS*

Temperature Under Bias ................. –55

°C to +125°C

Storage Temperature ....................... –65

°C to +150°C

Voltage on any Pin with

Respect toVSS(1)(2) ................ –2.0V to +VCC +2.0V

VCC with Respect to Ground ............... –2.0V to +7.0V

Package Power Dissipation

Capability (Ta = 25

°C)................................... 1.0W

Lead Soldering Temperature (10 secs) ............ 300

°C

Wiper Current .................................................... +6mA

Note:

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

(2) Absolute linearity is utilitzed to determine actual wiper voltage versus expected voltage as determined by wiper position when used

as a potentiometer.

(3) 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.

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

(5) n = 0, 1, 2, ..., 255

Note:

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

Maximum DC voltage on output pins is VCC +0.5V, which may overshoot to VCC +2.0V 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 –1V to VCC +1V.

POTENTIOMETER CHARACTERISTICS

(Over recommended operating conditions unless otherwise stated.)

Limits

Symbol

Parameter

Min.

Typ.

Max.

Units

Test Conditions

RPOT

Potentiometer Resistance (100K

Ω)

100

k

Ω

RPOT

Potentiometer Resistance (50K

Ω)

50

k

Ω

Potentiometer Resistance

+20

%

Tolerance

RPOT Matching

1

%

Power Rating

50

mW

25

°C, each pot

IW

Wiper Current

+3

mA

RW

Wiper Resistance

200

300

Ω

IW = +3mA @ VCC = 3V

RW

Wiper Resistance

100

150

Ω

IW = +3mA @ VCC = 5V

VTERM

Voltage on any RH or RL Pin

VSS

VCC

VVSS = 0V

VN

Noise

nV/

√Hz

(1)

Resolution

0.4

%

Absolute Linearity (2)

+1

LSB (4)

Rw(n)(actual)-R(n)(expected)(5)

Relative Linearity (3)

+0.2

LSB (4)

Rw(n+1)-[Rw(n)+LSB](5)

TCRPOT

Temperature Coefficient of RPOT

+300

ppm/˚C

(1)

TCRATIO

Ratiometric Temp. Coefficient

20

ppm/˚C

(1)

CH/CL/CW

Potentiometer Capacitances

10/10/25

pF

(1)

fc

Frequency Response

0.4

MHz

RPOT = 50K

Ω(1)

*

COMMENT

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 perfor-

mance and reliability.

Recommended Operating Conditions:

VCC = +2.5V to +6.0V

Temperature

Min

Max

Industrial

-40

°C85°C

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