HI-7151 Datasheet, PDF (1/17 Pages) Intersil Corporation – 10-Bit, High Speed, A/D Converter with Track and Hold

December 1997
HI-7151 ^®
NOT
RECOMMENDED
FOR
NEW
DESIGNS
10-Bit,
High
Speed, A/D Converter
with Track and Hold
Features
Description
• Conversion Time . . . . . . . . . . . . . . . . . . . . . . . . . . . 10µs
• Continuous Throughput Rate . . . . . . . . . . . . . . . 100kHz
• No Offset or Gain Adjustments Necessary
• Internal Track and Hold Amplifier
• Analog and Reference Inputs Fully Buffered
• µP Compatible Byte Organized Outputs
• Low Power Consumption . . . . . . . . . . . . . . . . . . 150mW
• Uses a Single 2.5V Reference for ±2.5 V Input Range
Applications
• µP Controlled Data Acquisition Systems
• DSP
- Avionics
- Sonar
• Process Control
- Automotive Transducer Sensing
- Industrial
• Robotics
• Digital Communications
• Image Processing
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
allows a new input voltage to be sampled while a conversion
is taking place.
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- or 16-bit systems. An Over-Range pin, together
with the MSB, can be used to indicate an out-of-range
condition.
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.
Internal high speed CMOS buffers at both the analog and
reference inputs simplify external drive requirements.
Ordering Information
PART
NUMBER
HI3-7151J-5
HI3-7151K-5
HI3-7151A-9
HI3-7151B-9
HI1-7151S-2
HI1-7151T-2
LINEARITY
(MAX. DLE)
±1 LSB
±¹/₂ LSB
±1 LSB
±¹/₂ LSB
±1 LSB
±¹/₂ LSB
TEMP.
RANGE (^oC)
PACKAGE
0 to 75 28 Ld PDIP
0 to 75 28 Ld PDIP
0 to 85 28 Ld PDIP
0 to 85 28 Ld PDIP
-55 to 125 28 Ld CERDIP
-55 to 125 28 Ld CERDIP
Pinout
HI-7151
(PDIP, CERDIP)
TOP VIEW
GND 1
V- 2
V_REF 3
AG 4
V_IN 5
SET 6
BUSY 7
CLK 8
HOLD 9
WR 10
CS 11
RD 12
SMODE 13
DG 14
28 V+
27 OVR
26 D9
25 D8
24 D7
23 D6
22 D5
21 D4
20 D3
19 D2
18 D1
17 D0
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.
Copyright © Intersil Americas Inc. 2002. All Rights Reserved
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File Number 3099.1