®
HI-7152
10-Bit High Speed A/D Converter
with Track and Hold
January 1998
Features
Description
• Conversion Time . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5µs The Intersil HI-7152 is a high speed 10-bit A/D converter
which uses
a Two-Step, Flash algorithm to achieve
• Continuous Throughput Rate. . . . . . . . . . . . . . . 200kHz
• No Offset or Gain Adjustments Necessary
• Internal Track and Hold Amplifier
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.
• Analog and Reference Inputs Fully Buffered
• µP Compatible Byte Organized Outputs
A Track and Hold amplifier is included on the chip, consisting
of two high speed amplifiers and an internal hold capacitor.
• Low Power Consumption . . . . . . . . . . . . . . . . . .150mW
• Uses a Single 2.5V Reference for ±2.5 V Input Range
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.
Applications
• µP Controlled Data Acquisition Systems
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.
• DSP
- Avionics
- Sonar
Ordering Information
• Process Control
- Automotive Transducer Sensing
- Industrial
PART
NUMBER
LINEARITY
(MAX. DLE) RANGE ( C)
TEMP.
o
PACKAGE
28 Ld PDIP
28 Ld PDIP
28 Ld PDIP
28 Ld PDIP
28 Ld CERDIP
HI3-7152J-5
HI3-7152K-5
HI3-7152A-9
HI3-7152B-9
HI1-7152S-2
±1 LSB
0 to 75
0 to 75
• Robotics
1
± / LSB
2
• Digital Communications
• Image Processing
±1 LSB
0 to 85
1
± / LSB
0 to 85
2
±1 LSB
-55 to 125
HI-7152
(PDIP, CERDIP)
TOP VIEW
Pinout
28 V+
27 OVR
26 D9
25 D8
24 D7
23 D6
22 D5
21 D4
GND
V-
1
2
3
4
5
6
7
8
9
V
REF
AG
V
IN
SET
BUSY
CLK
HOLD
20
D3
19 D2
WR 10
CS 11
18 D1
RD 12
17 D0
SMODE 13
DG 14
16 HBE
15 BUS
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.
File Number 3100.1
Copyright © Intersil Americas Inc. 2002. All Rights Reserved
6-1