HI2303 데이터 시트보기 (PDF) - Intersil

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HI2303

Triple 8-Bit, 50 MSPS, Video A/D Converter with Clamp Function

Intersil 

HI2303

Digital Output

The following table shows the relationship between analog input voltage and digital output code.

.

TABLE 1. I/O CORRESPONDENCE

INPUT SIGNAL

VOLTAGE

VART, VBRT, VCRT

•

•

•

•

•

•

VARB, VBRB, VCRB

STEP

0

•

•

127

128

•

•

255

DIGITAL OUTPUT

CODE

MSB

LSB

1111 1111

•

•

1000 0000

0111 • 1111

•

•

0000 0000

Test Circuits

TO OUTPUT PIN

MEASUREMENT

POINT

CL

MEASUREMENT POINT

DVDD

RL

TO OUTPUT PIN

CL

RL

NOTE: CL includes capacitance of probes.

FIGURE 1. OUTPUT DATA DELAY MEASUREMENT CIRCUIT

+V

S2

S1: ON IF A < B

S2: ON IF B > A

+-

S1

AIN

BIN

CIN

DVM

A

DUT

HI2303 B

C

-V

8

A<B A>B

8

8

COMPARATOR

A8 B8

8

8

A1 B1

A0 B0

“0”

“1”

CLK (50MHz)

BUFFER

8

000. . .00

111. . .10

CONTROLLER

FIGURE 3. INTEGRAL NON-LINEARITY ERROR, DIFFER-

ENTIAL NON-LINEARITY ERROR AND OFFSET

VOLTAGE TEST CIRCUIT

FIGURE 2. THREE-STATE MEASUREMENT CIRCUIT

2.5V

+

A

+

V

0.5V

+5V

VDD

ART, BRT, CRT

AIN, BIN, CIN

ARB, BRB, CRB

CLK

GND

FIGURE 4. ANALOG INPUT RESISTANCE TEST CIRCUIT

8

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