6-1
January 1998
HI-7152
with Track and Hold
Features
Conversion Time . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
μ
s
Continuous Throughput Rate. . . . . . . . . . . . . . . 200kHz
No Offset or Gain Adjustments Necessary
Internal Track and Hold Amplifier
Analog and Reference Inputs Fully Buffered
μ
P Compatible Byte Organized Outputs
Low Power Consumption . . . . . . . . . . . . . . . . . .150mW
Uses a Single 2.5V Reference for
±
2.5 V Input Range
Applications
μ
P Controlled Data Acquisition Systems
DSP
- Avionics
- Sonar
Process Control
- Automotive Transducer Sensing
- Industrial
Robotics
Digital Communications
Image Processing
Description
The Intersil HI-7152 is a high speed 10-bit A/D converter
which uses a Two-Step, Flash algorithm to achieve
throughput rates of 200kHz. A unique switched capacitor
technique allows a new input voltage to be sampled while a
conversion is taking place.
Internal high speed CMOS buffers at both the analog and
reference inputs simplify external drive requirements.
A Track and Hold amplifier is included on the chip, consisting
of two high speed amplifiers and an internal hold capacitor.
Microprocessor bus interfacing is simplified by the use of
standard Chip Select, Read, and Write control signals. The
digital three-state outputs are byte organized for interfacing
the either 8-bit or 16-bit systems. An out-of-range pin,
together with the MSB, can be used to indicate an under-
range or over-range condition.
The HI-7152 operates with
±
5V supplies. A single +2.5V
reference is required to provide a bipolar input range from
-2.5V to +2.5V.
Ordering Information
Pinout
HI-7152
(PDIP, CERDIP)
TOP VIEW
PART
NUMBER
LINEARITY
(MAX. DLE)
TEMP.
RANGE (
o
C)
PACKAGE
HI3-7152J-5
±
1 LSB
±
1
/
2
LSB
0 to 75
28 Ld PDIP
HI3-7152K-5
0 to 75
28 Ld PDIP
HI3-7152A-9
±
1 LSB
±
1
/
2
LSB
0 to 85
28 Ld PDIP
HI3-7152B-9
0 to 85
28 Ld PDIP
HI1-7152S-2
±
1 LSB
-55 to 125
28 Ld CERDIP
GND
V-
V
REF
AG
V
IN
SET
BUSY
CLK
HOLD
WR
CS
RD
SMODE
DG
V+
D9
D8
D7
D6
D4
D2
D1
D0
HBE
BUS
OVR
D5
D3
28
27
26
25
24
23
22
21
20
19
18
17
16
15
1
2
3
4
5
6
7
8
9
10
11
12
13
14
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 registered trademark of Intersil Americas Inc.
Copyright Intersil Americas Inc. 2002. All Rights Reserved
File Number
3100.1
NOT RECOMMENDED FOR NEW DESIGNS