CA3304D datasheet(4/11 Pages) INTERSIL

部件名	CA3304D

功能描述	4-Bit, 25 MSPS, Flash A/D Converters

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制造商	INTERSIL [Intersil Corporation]

网页	http://www.intersil.com/cda/home

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4 / 11 page

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Pin Descriptions

PIN NUMBER

NAME

DESCRIPTION

1

Bit 1

Bit 1 (LSB).

Output Data Bits

(High = True)

2

Bit 2

Bit 2.

3

Bit 3

Bit 3.

4

Bit 4

Bit 4 (MSB).

5

DC

Data Change.

6

OF

Overflow.

7

CE2

Three-State Output Enable Input, active low. See the Chip Enable Truth Table.

8VSS

Digital Ground.

9

CE1

Three-State Output Enable Input, active high. See the Chip Enable Truth Table.

10

VAA+

Analog Power Supply, +5V.

11

VIN

Analog Signal Input.

12

VREF+

Reference Voltage Positive Input.

13

VREF-

Reference Voltage Negative Input.

14

VAA-

Analog Ground.

15

CLK

Clock Input.

16

VDD

Digital Power Supply, +5V.

CHIP ENABLE TRUTH TABLE

CE1

CE2

BIT 1 - BIT 4

DC, OF

0

1

Valid

1

Three-State

Valid

X

0

Three-State

X = Don't Care

TABLE 1. OUTPUT CODE TABLE

CODE

DESCRIPTION

INPUT VOLTAGE (V)

OUTPUT CODE

DECIMAL

COUNT

VREF+ = 1V

VREF- = -1V

1.6V

0V

2V

0V

3.2V

0V

4.8V

0V

OF

B4

B3

B2

B1

Zero

-1.000

0

00000

0

1 LSB

-0.875

0.1

0.125

0.2

0.3

00001

1

2 LSB

-0.750

0.2

0.250

0.4

0.6

00010

2

•

•••••

•

•••••

•

•••••

•

•••••

•

1/

2 Full Scale -1 LSB

-0.125

0.7

0.875

1.4

2.1

00111

7

1/

2 Full Scale

0

0.8

1.000

1.6

2.4

01000

8

1/

2 Full Scale +1 LSB

0.125

0.9

1.125

1.8

2.7

01001

9

•

•••••

•

•••••

•

•••••

•

•••••

•

Full Scale -1 LSB

0.750

1.4

1.750

2.8

4.2

01110

14

Full Scale

0.875

1.5

1.875

3.0

4.5

01111

15

Overflow

1.000

1.6

2.000

3.2

4.8

11111

31

Step Size

0.125

0.1

0.125

0.2

0.3

NOTE:

1. The voltages listed are the ideal centers of each output code shown as a function of its associated reference voltage See Ideal Transfer

Curve Figure 6. The output code should exist for an input equal to the ideal center voltage

±1/2 of the step size.

CA3304, CA3304A

类似零件编号 - CA3304D

制造商	部件名	数据表	功能描述
Intersil Corporation	CA3304D	295Kb / 12P	4-Bit, 25 MSPS, Flash A/D Converters

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