HI2325
TM
Data Sheet
March 2000
File Number 4823.1
3.3V Dual 8-Bit, 40MSPS A/D Converter
with Internal Reference and Digital Clamp
Features
• Sampling Rate . . . . . . . . . . . . . . . . . . . . . . . . . . .40MSPS
The HI2325 is a monolithic, dual 8-bit, 40MSPS 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 HI2325 features
a 2-stage parallel architecture. Only one external clock is
necessary to drive both converters and an internal voltage
reference is provided allowing the system designer to realize
an increased level of system integration resulting in
decreased cost and power dissipation.
• 6.5 Bits at f = 1MHz
IN
• Low Power at 40MSPS. . . . . . . . . . . . . . . . . . . . . 100mW
• Power Down Mode . . . . . . . . . . . . . . . . . . . . . . . . . . 8mW
• Wide Full Power Input Bandwidth. . . . . . . . . . . . . 250MHz
• Excellent Channel-to-Channel Isolation . . . . . . . . . >75dB
• Internal Digital Clamp
• Internal Voltage Reference
The HI2325 has excellent dynamic performance while
consuming less than 100mW power at 40MSPS. The A/D
only requires a single +3.3V power supply and encode clock.
Data output latches are provided which present valid data to
the output bus with a latency of 2 clock cycles.
• Single Supply Voltage Operation . . . . . . . . . . . . . . . +3.3V
• TTL/CMOS Compatible Digital Inputs
• CMOS Compatible Digital Outputs. . . . . . . . . . . . . . . 3.3V
• Offset Binary or 2’s Complement Output Format
• Dual 8-Bit A/D Converters on a Monolithic Chip
Ordering Information
PART
NUMBER
TEMP.
RANGE ( C)
o
PACKAGE
PKG. NO.
Applications
HI2325IN
-20 to 85
48 Ld MQFP/PQFP Q48.7x7-S
• Wireless Local Loop
• PSK and QAM I&Q Demodulators
• Medical Imaging and Instrumentation
• Portable Communications
• Power Metering
Pinout
48 LEAD LQFP
TOP VIEW
• Hand-Held Data Collection Instruments
48 47 46 45 44 43 42 41 40 39 38 37
AVSS
AIO
36
1
A3
35
34
33
32
31
30
29
28
27
26
25
A4
A5
A6
2
3
AIN
AVDD
ART
4
5
A7
DVDD
DVDD
ARTS
6
7
BRTS
BRT
B0
8
AVDD
B1
B2
9
BIN
10
BIO
B3
B4
11
12
AVSS
13 14 15 16 17 18 19 20 21 22 23 24
CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.
1-888-INTERSIL or 321-724-7143 | Intersil and Design is a trademark of Intersil Corporation. | Copyright © Intersil Corporation 2000
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