Intersil Corporation HI2300 Datasheet

August 1997

HI2300

8-Bit, 18 MSPS, Video A/D Converter

with 3.3V Power Supply Operation

Features

• Resolution . . . . . . . . . . . . . . . . . . . . 8-Bit ±1/2 LSB (DL)

• Maximum Sampling Frequency . . . . . . . . . . . 18 MSPS

• Low Power Consumption at 18 MSPS (Typ)

(Reference Current Excluded) . . . . . . . . . . . . . . .18mW

• Synchronizing Clamp Function

• Clamp ON/OFF Function

• Reference Voltage Self-Bias Circuit

• Input CMOS Compatible

• Three-State TTL Compatible Output

• Power Supply. . . . . . . . . . . . . . . . . . . . . . . . 3.3V Single

• Low Input Capacitance . . . . . . . . . . . . . . . . . . . . . . . 8pF

• Reference Impedance . . . . . . . . . . . . . . . . . . 330Ω (Typ)

• Direct Replacement for Sony CXD2300

Applications

• Portable Equipment

• Hand-Held Instruments

Description

The HI2300 is an 8-bit, CMOS A/D converter for video with
synchronizing clamp function and can operate on 3.3V
power supply. The adoption of 2 step-parallel method
achieves ultra-low power consumption and a maximum
conversion speed of 18 MSPS.

Ordering Information

PART

NUMBER

HI2300JCQ -40 to 85 32 Ld MQFP Q32.7x7-S

TEMP.

RANGE (oC) PACKAGE PKG. NO.

Pinout

D0
D1
D2
D3
D4
D5
D6
D7

HI2300

(MQFP)

TOP VIEW

CCP

DVSSCLE

OE

DVSSNC

3231 3029 28 27 26 25

1
2
3
4
5
6
7
8

DD

CLK

TEST

TEST

TEST

TEST

DV

REF

V

161514131211109

CLP

RBS

V

24
23
22
21
20
19
18
17

DD

AV

V
AV
AV
V
AV
AV
V
V

RB

SS
SS

IN

DD

DD
RT
RTS

CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.
1-888-INTERSIL or 321-724-7143 | Copyright © Intersil Corporation 1999

4-1230

File Number 4103.1

Functional Block Diagram

DV

SS

28

30

OE

DV

31

SS

DV

DD

TEST

CLK

D1

D2

D3

D4

D5

D6

1

2

LOWER

DAT A

LATCH

3

4

5

6

UPPER

DAT A

LATCH

7

8

10

11

12

CLOCK

GENERATOR

D0 (LSB)

D7 (MSB)

(DVDD)

LOWER ENCODER

(4-BIT)

LOWER ENCODER

(4-BIT)

UPPER ENCODER

(4-BIT)

HI2300

LOWER SAMPLING

COMPARATOR (4-BIT)

LOWER SAMPLING

COMPARATOR (4-BIT)

UPPER SAMPLING

COMPARATOR (4-BIT)

REFERENCE

SUPPLY

25

V

RBS

24

V

RB

23

AV

SS

22

AV

SS

21

V

IN

20

AV

DD

19

AV

DD

18

V

RT

17

V

RTS

16

AV

DD

TEST

(OPEN)

NC

-

262729

REF

+

M - M

15

CLP
TEST

14

OR VSS)

(V

DD

TEST

13

OR VSS)

(V

DD

9

32

CLE CCP V

4-1231

HI2300

Pin Descriptions

PIN NUMBER SYMBOL EQUIVALENT CIRCUIT DESCRIPTION

1 to 8 D0 to D7 D0 (LSB) to D7 (MSB) Output.

Di

9 TEST Leave open during normal usage.

DV

DD

9

DV

SS

10 DV

DD

Digital +3.3V.

12 CLK Clock Input.

DV

DD

12

DV

SS

11, 13, 14 TEST Fix Pin 11 to VDD, Pins 13 and 14 to VDD or

VSS during normal usage.

Inputs Clamp Pulse to Pin 15 (CLP). Clamps
the signal voltage during Low interval.

Analog +3.3V
Generates approximately +1.8V when shorted

with VRT.

15

16, 19, 20 AV

17 V

CLP

RTS

DD

DV

DV

DV

DV

SS

SS

DD

DD

AV

DD

11
13

14

15

18 V
24 V

RT
RB

17

AV

DD

18 24

AV

SS

4-1232

Reference Voltage (Top).
Reference Voltage (Bottom).