®
HI-5700
8-Bit, 20 MSPS Flash A/D Converter
May 1997
Features
Description
• 20 MSPS with No Missing Codes
• 18MHz Full Power Input Bandwidth
• No Missing Codes Over Temperature
• Sample and Hold Not Required
• Single +5V Supply Voltage
• CMOS/TTL
The HI-5700 is a monolithic, 8-bit, CMOS Flash Analog-to-
Digital Converter. It is designed for high speed applications
where wide bandwidth and low power consumption are
essential. Its 20 MSPS speed is made possible by a parallel
architecture which also eliminates the need for an external
sample and hold circuit. The HI-5700 delivers ±0.5 LSB
differential nonlinearity while consuming only 725mW
(typical) at 20 MSPS. Microprocessor compatible data
output latches are provided which present valid data to the
output bus 1.5 clock cycles after the convert command is
received. An overflow bit is provided to allow the series
connection of two converters to achieve 9-bit resolution.
• Overflow Bit
• Improved Replacement for MP7684
• Evaluation Board Available
• /883 Version Available
Ordering Information
Applications
PART
TEMPERATURE
RANGE
NUMBER
PACKAGE
• Video Digitizing
HI3-5700J-5
HI9P5700J-5
HI3-5700A-9
HI9P5700A-9
0oC to +70oC
0oC to +70oC
-40oC to +85oC
-40oC to +85oC
28 Lead Plastic DIP
28 Lead Plastic SOIC (W)
28 Lead Plastic DIP
28 Lead Plastic SOIC (W)
• Radar Systems
• Medical Imaging
• Communication Systems
• High Speed Data Acquisition Systems
Pinout
HI-5700
(PDIP, SOIC)
TOP VIEW
VIN
CLK
1
2
28
27
26
25
24
23
22
VREF
-
(MSB) D7
D6
AVDD
AGND
AGND
AVDD
1/2R
3
4
D5
5
D4
1/4R
VDD
6
7
21 AVDD
8
GND
3/4R
AGND
9
20
19
18
17
16
15
D3
D2
10
11
12
13
14
AGND
AVDD
VREF
+
(LSB) D1
D0
CE1
CE2
OVF
CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.
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File Number 3174.4