HI3304 Datasheet, PDF (1/12 Pages) Intersil Corporation – 4-Bit, 25 MSPS, Flash A/D Converter

HI3304
August 1997
4-Bit, 25 MSPS, Flash A/D Converter
Features
• CMOS Low Power (Typ). . . . . . . . . . . . . . . . . . . . 35mW
• Parallel Conversion Technique
• Single Power Supply Voltage . . . . . . . . . . . . 3V to 7.5V
• Sampling Rate at 5V Supply . . . . . . . . . . . . . . . . . 25MHz
• 4-Bit Latched Three-State Output with Overflow and
Data Change Outputs
• Maximum Nonlinearity. . . . . . . . . . . . . . . . . . . . ¹/₈ LSB
• Inherent Resistance to Latch-Up
• Bipolar Input Range with Optional Second Supply
• Input Bandwidth (Typ) . . . . . . . . . . . . . . . . . . . . . 40MHz
• Linearity (INL, DNL):
- HI3304JIP . . . . . . . . . . . . . . . . . . . . . . . . . . ±0.25 LSB
- HI3304JIB . . . . . . . . . . . . . . . . . . . . . . . . . . ±0.25 LSB
• Sampling Rate:
- HI3304JIP . . . . . . . . . . . . . . . . . . . . . . . 25MHz (40ns)
- HI3304JIB . . . . . . . . . . . . . . . . . . . . . . . 25MHz (40ns)
Applications
• Video Digitizing
• High Speed Data Acquisition
• Digital Communication Systems
• Radar Signal Processing
Description
The Intersil HI3304 is a CMOS parallel (FLASH) analog-to-
digital converter designed for applications demanding both
low-power consumption and high speed digitization. Digitiz-
ing at 25MHz, for example, requires only about 35mW.
The HI3304 operates over a wide, full-scale signal input volt-
age range of 0.5V up to the supply voltage. Power consump-
tion is as low as 10mW, depending upon the clock frequency
selected.
Sixteen paralleled auto-balanced voltage comparators mea-
sure the input voltage with respect to a known reference to
produce the parallel-bit outputs in the HI3304. Fifteen com-
parators are required to quantize all input voltage levels in
this 4-bit converter, and the additional comparator is required
for the overflow bit. A data change pin indicates when the
present output differs from the previous, thus allowing com-
paction of data storage.
Ordering Information
TEMP.
PART NUMBER RANGE (^oC)
PACKAGE
HI3304JIP
-40 to 85 16 Ld PDIP
HI3304JIB
-40 to 85 16 Ld SOIC
PKG. NO.
E16.3
M16.3
Pinout
HI3304
(PDIP, SOIC)
TOP VIEW
BIT 1 (LSB) 1
BIT 2 2
BIT 3 3
BIT 4 4
DATA CHANGE (DC) 5
OVERFLOW (OF) 6
CE2 7
V_SS 8
16 V_DD
15 CLK
14 V_AA-
13 V_REF-
12 V_REF+
11 V_IN
10 V_AA+
9 CE1
CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.
1-888-INTERSIL or 321-724-7143 | Copyright © Intersil Corporation 1999
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File Number 4137.1