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ISL5640

ADVANCE INF ORMATION

Data Sheet

June 2000

File Number

4657.3

3V Dual 8-Bit, 20/40/60MSPS A/D

Converter with Internal Voltage Reference

The ISL5640 is a monolithic, dual 8-bit analog-to-digital

converter fabricated in an advanced CMOS process. It is

designed for high speed applications where integration,

bandwidth and accuracy are essential. The ISL5640

features a 9-stage pipeline architecture. The fully pipelined

architecture and an innovative input stage enable the

ISL5640 to accept a variety of input con鏗乬urations, single-

ended or fully differential. Only one external clock is

necessary to drive both converters and an internal band-gap

voltage reference is provided. This allows the system

designer to realize an increased level of system integration

resulting in decreased cost and power dissipation.

The ISL5640 has excellent dynamic performance while

consuming less than 100mW power at 40MSPS. The A/D

only requires a single +3.0V power supply. Data output

latches are provided which present valid data to the output

bus with a latency of 5 clock cycles.

The ISL5640 is offered in 20MSPS, 30MSPS, 40MSPS and

60MSPS sampling rates.

Features

鈥?Sampling Rate . . . . . . . . . . . . . . . . . . . . . . . . . . .40MSPS

鈥?7.4 Bits at f

IN

= 1MHz

鈥?Low Power at 40MSPS. . . . . . . . . . . . . . . . . . . . . 100mW

鈥?Power Down Mode . . . . . . . . . . . . . . . . . . . . . . . . . <1mW

鈥?Wide Full Power Input Bandwidth. . . . . . . . . . . . . 250MHz

鈥?SFDR at f

IN

= 1MHz . . . . . . . . . . . . . . . . . . . . . . . . . .55dB

鈥?Excellent Channel-to-Channel Isolation . . . . . . . . . >75dB

鈥?On-Chip Sample and Hold Ampli鏗乪rs

鈥?Internal Bandgap Voltage Reference . . . . . . . . . . . . 1.25V

鈥?Single Supply Voltage Operation . . . . . . . . . . . . . . . +3.0V

鈥?Offset Binary or Two鈥檚 Complement Output Format

鈥?Dual 8-Bit A/D Converters on a Monolithic Chip

鈥?Pin Compatible Upgrade to AD9288

Applications

鈥?Wireless Local Loop

鈥?PSK and QAM I&Q Demodulators

Ordering Information

PART

NUMBER

ISL5640/2IN

ISL5640/3IN

ISL5640/4IN

ISL5640/6IN

ISL5640 EVAL

TEMP.

RANGE

(

o

C)

PACKAGE

SAMPLING

RATE

PKG. NO.

(MSPS)

Q48.7x7

Q48.7x7

Q48.7x7

Q48.7x7

20

30

40

鈥?Medical Imaging

鈥?High Speed Data Acquisition

-40 to 85 48 Ld LQFP

-40 to 85 48 Ld LQFP

-40 to 85 48 Ld LQFP

-40 to 85 48 Ld LQFP

25

Pinout

48 LEAD LQFP

TOP VIEW

AV

CC

I CLK

DV

CC

GND

ID7

ID5

ID4

ID6

ID2

ID1

ID3

ID0

60

Evaluation Platform

48 47 46 45 44 43 42 41 40 39 38 37

36

35

34

33

32

31

30

29

28

27

GND

I

IN

+

I

IN

-

DFS

IV

RIN

V

ROUT

QV

RIN

S1

S2

Q

IN

-

Q

IN

+

GND

1

2

3

4

5

6

7

8

9

10

N/C

N/C

GND

DV

CC

GND

AV

CC

AV

CC

GND

DV

CC

GND

N/C

N/C

26

11

25

12

13 14 15 16 17 18 19 20 21 22 23 24

DV

CC

GND

QD5

QD4

QD6

AV

CC

Q CLK

QD7

QD3

QD2

QD1

3-1

CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.

1-888-INTERSIL or 321-724-7143

|

Copyright

漏

Intersil Corporation 2000

QD0

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