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铿乬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铿乪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
1
2
3
4
5
6
7
8
9
10
11
