CAT523 View Datasheet(PDF) - ON Semiconductor

Part Name

Description

MFG CO.

CAT523

Dual Digitally Programmable Potentiometer (DPP™) with 256 Taps and Microwire Interface

ON Semiconductor 

CAT523

Not Recommended for New Design

POTENTIOMETER CHARACTERISTICS

VDD = +2.7V to +5.5V, VREFH = VDD, VREFL = 0V, unless otherwise specified

Symbol Parameter

Conditions

Min

RPOT Potentiometer Resistance

See note 3

RPOT to RPOT Match

—

Pot Resistance Tolerance

Voltage on VREFH pin

2.7

Voltage on VREFL pin

0

Resolution

INL Integral Linearity Error

DNL Differential Linearity Error

ROUT

IOUT

Buffer Output Resistance

Buffer Output Current

TCRPOT TC of Pot Resistance

CH/CL Potentiometer Capacitances

Typ

24

±0.5

0.4

0.5

0.25

300

8/8

Max

±1

±20

VDD

VDD - 2.7

1

0.5

10

3

Units

kΩ

%

%

V

V

%

LSB

LSB

Ω

mA

ppm/ºC

pF

AC ELECTRICAL CHARACTERISTICS

VDD = +2.7V to +5.5V, VREFH = VDD, VREFL = 0V, unless otherwise specified

Symbol Parameter

Conditions

Min

Typ Max Units

Digital

tCSMIN

tCSS

tCSH

tDIS

tDIH

tDO1

tDO0

tHZ

tLZ

tBUSY

tPS

tPROG

tCLKH

tCLKL

fC

Minimum CS Low Time

CS Setup Time

CS Hold Time

DI Setup Time

DI Hold Time

Output Delay to 1

Output Delay to 0

Output Delay to High-Z

Output Delay to Low-Z

Erase/Write Cycle Time

PROG Setup Time

Minimum Pulse Width

Minimum CLK High Time

Minimum CLK Low Time

Clock Frequency

CL = 100pF (1)

150

—

—

ns

100

—

—

ns

0

—

—

ns

50

—

—

ns

50

—

—

ns

—

—

150

ns

—

—

150

ns

—

400

—

ns

—

400

—

ns

—

4

5

ms

150

—

—

ns

700

—

—

ns

500

—

—

ns

300

—

—

ns

DC

—

1

MHz

Analog

tDS DPP Settling Time to 1 LSB

CLOAD = 10pF, VDD = +5V

—

CLOAD = 10pF, VDD = +3V

—

3

10

µs

6

10

µs

Notes:

(1) All timing measurements are defined at the point of signal crossing VDD / 2.

(2) These parameters are periodically sampled and are not 100% tested.

(3) The 24kΩ +20% resistors are configured as 4 resistors in parallel which would provide a measured value between VREFH and VREFL of 6kΩ

+20%. The individual 24kΩ resistors are not measurable but guaranteed by design and verification of the 6kΩ +20% value.

Doc. No. MD-2005 Rev. I

4

© 2008 SCILLC. All rights reserved.

Characteristics subject to change without notice

Share Link: