CAT521

3

Doc. No. 2003, Rev. F

POTENTIOMETER CHARACTERISTICS

Symbol

Parameter

Conditions

Min

Typ

Max

Units

Potentiometer Resistance

See Note 3

24

k

Ω

—

+0.5

+1

%

Pot Resistance Tolerance

+20

%

2.7

V

0V

V

Resolution

0.4

%

INL

Integral Linearity Error

0.5

1

LSB

DNL

Differential Linearity Error

0.25

0.5

LSB

Buffer Output Resistance

10

Ω

Buffer Output Current

3

mA

TC of Pot Resistance

300

ppm/˚C

Potentiometer Capacitances

8/8

pF

Symbol

Parameter

Conditions

Min

Typ

Max

Units

Minimum CS Low Time

150

—

—

ns

CS Setup Time

100

—

—

ns

CS Hold Time

0

—

—

ns

DI Setup Time

50

—

—

ns

DI Hold Time

50

—

—

ns

Output Delay to 1

—

—

150

ns

Output Delay to 0

—

—

150

ns

Output Delay to High-Z

—

400

—

ns

Output Delay to Low-Z

—

400

—

ns

Erase/Write Cycle Time

—

4

5

ms

PROG Setup Time

150

—

—

ns

Minimum Pulse Width

700

—

—

ns

Minimum CLK High Time

500

—

—

ns

Minimum CLK Low Time

300

—

—

ns

Clock Frequency

DC

—

1

MHz

DPP Settling Time to 1 LSB

—

3

10

µs

—

6

10

µs

NOTES:

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

3. The 24k

resistors are not measurable but guaranteed by design and verification of the 6k

Ω +20% value.

AC ELECTRICAL CHARACTERISTICS:

see note 1

Digital

Analog