HI2325 Datasheet, PDF (1/7 Pages) Intersil Corporation – 3.3V Dual 8-Bit, 40MSPS A/D Converter with Internal Reference and Digital Clamp

TM
Data Sheet
HI2325
March 2000 File Number 4823.1
3.3V Dual 8-Bit, 40MSPS A/D Converter
with Internal Reference and Digital Clamp
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.
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.
Ordering Information
PART
NUMBER
HI2325IN
TEMP.
RANGE (^oC)
PACKAGE
PKG. NO.
-20 to 85 48 Ld MQFP/PQFP Q48.7x7-S
Pinout
48 LEAD LQFP
TOP VIEW
A3
A4
A5
A6
A7
DVDD
DVDD
B0
B1
B2
B3
B4
48 47 46 45 44 43 42 41 40 39 38 37
1
36
2
35
3
34
4
33
5
32
6
31
7
30
8
29
9
28
10
27
11
26
12
25
13 14 15 16 17 18 19 20 21 22 23 24
AVSS
AIO
AIN
AVDD
ART
ARTS
BRTS
BRT
AVDD
BIN
BIO
AVSS
Features
• Sampling Rate . . . . . . . . . . . . . . . . . . . . . . . . . . .40MSPS
• 6.5 Bits at f_IN = 1MHz
• 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
• 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
Applications
• Wireless Local Loop
• PSK and QAM I&Q Demodulators
• Medical Imaging and Instrumentation
• Portable Communications
• Power Metering
• Hand-Held Data Collection Instruments
1
CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.
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