HI2301 데이터 시트보기 (PDF) - Intersil

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HI2301

8-Bit, 30 MSPS, Video A/D Converter with Amplifier/Clamp

Intersil 

HI2301

Functional Block Diagram

VIN2 VIN1

27 25

OPO

30

ADV ADV

21 22

AVDD

26

TEST

(DVSS) 19

SEL 4

CE 5

D0 (LSB) 16

D1 15

D2 14

D3 13

D4 12

D5 11

D6 10

D7 (MSB) 9

CLK 18

R

R

3R

-

+

VBI

RTS

REFERENCE

SUPPLY

LOWER

DATA

LATCH

UPPER

DATA

LATCH

LOWER ENCODER

(4-BIT)

LOWER ENCODER

(4-BIT)

UPPER ENCODER

(4-BIT)

LOWER SAMPLING

COMPARATOR (4-BIT)

LOWER SAMPLING

COMPARATOR (4-BIT)

UPPER SAMPLING

COMPARATOR (4-BIT)

ADV

CLOCK GENERATOR

DVDD 17

DVSS 8

A/D CONVERTER

-

+

BLOCK

23 VRT

1 VRB

29 ADIN

2 AVSS

3 AVSS

7 AVSS

28 AVSS

31 AVSS

24

VREF

6 20 32

CLE CLP CCP

Pin Descriptions

PIN NO.

SYMBOL

1

VRB

23

VRT

2, 3, 7, 28, 31

AVSS

EQUIVALENT CIRCUIT

AVDD

RTS

RREF

23

1

AVSS

DESCRIPTION

Reference voltage (bottom) connect to AVSS

for normal use. When another external voltage

is input, connect an external 0.1µF capacitor

and retain a 1.5V differential compared to the

top reference voltage.

Reference voltage (top) by setting VRB to

AVSS, outputs approximately 1.5V. Connect

only a 0.1µF external by-pass capacitor for

normal use. When another external voltage is

input, it must be 2.2V or lower.

Analog GND.

4-2

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