®
HI-7151
10-Bit, High Speed, A/D Converter
with Track and Hold
December 1997
Features
Description
• Conversion Time . . . . . . . . . . . . . . . . . . . . . . . . . . . 10µs The Intersil HI-7151 is a high speed 10-bit A/D converter
which uses a 2-Step Flash algorithm to achieve throughput
rates of 100kHz. A unique switched capacitor technique
• Continuous Throughput Rate. . . . . . . . . . . . . . . 100kHz
allows a new input voltage to be sampled while a conversion
is taking place.
• No Offset or Gain Adjustments Necessary
• Internal Track and Hold Amplifier
A Track and Hold amplifier is included on the chip, consisting
of two high speed amplifiers and an internal hold capacitor.
• Analog and Reference Inputs Fully Buffered
• µP Compatible Byte Organized Outputs
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- or 16-bit systems. An Over-Range pin, together
with the MSB, can be used to indicate an out-of-range
condition.
• Low Power Consumption . . . . . . . . . . . . . . . . . .150mW
• Uses a Single 2.5V Reference for ±2.5 V Input Range
Applications
The HI-7151 operates with ±5V supplies. A single +2.5V
reference is required to provide a bipolar input range from
-2.5V to +2.5V.
• µP Controlled Data Acquisition Systems
• DSP
Internal high speed CMOS buffers at both the analog and
reference inputs simplify external drive requirements.
- Avionics
- Sonar
Ordering Information
• Process Control
PART
NUMBER
LINEARITY
(MAX. DLE) RANGE ( C)
TEMP.
- Automotive Transducer Sensing
- Industrial
o
PACKAGE
28 Ld PDIP
HI3-7151J-5
HI3-7151K-5
HI3-7151A-9
HI3-7151B-9
HI1-7151S-2
HI1-7151T-2
±1 LSB
0 to 75
0 to 75
0 to 85
0 to 85
• Robotics
1
± / LSB
28 Ld PDIP
28 Ld PDIP
28 Ld PDIP
2
• Digital Communications
• Image Processing
±1 LSB
1
± / LSB
2
±1 LSB
-55 to 125 28 Ld CERDIP
-55 to 125 28 Ld CERDIP
1
± / LSB
2
HI-7151
(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.
File Number 3099.1
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
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