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PDF ( 数据手册 , 数据表 ) ADC08062CIWM

零件编号 ADC08062CIWM
描述 500 ns A/D Converter with S/H Function and Input Multiplexer
制造商 National Semiconductor
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ADC08062CIWM 数据手册, 描述, 功能
June 1999
ADC08061/ADC08062
500 ns A/D Converter with S/H Function and Input
Multiplexer
General Description
Using a patented multi-step A/D conversion technique, the
8-bit ADC08061 and ADC08062 CMOS ADCs offer 500 ns
(typ) conversion time, internal sample-and-hold (S/H), and
dissipate only 125 mW of power. The ADC08062 has a
two-channel multiplexer. The ADC08061/2 family performs
an 8-bit conversion using a 2-bit voltage estimator that gen-
erates the 2 MSBs and two low-resolution (3-bit) flashes that
generate the 6 LSBs.
Input track-and-hold circuitry eliminates the need for an ex-
ternal sample-and-hold. The ADC08061/2 family performs
accurate conversions of full-scale input signals that have a
frequency range of DC to 300 kHz (full-power bandwidth)
without need of an external S/H.
The digital interface has been designed to ease connection
to microprocessors and allows the parts to be I/O or memory
mapped.
Key Specifications
n Resolution
n Conversion Time
n Full Power Bandwidth
n Throughput rate
n Power Dissipation
n Total Unadjusted Error
8 bits
560 ns max (WR-RD Mode)
300 kHz
1.5 MHz
100 mW max
±12 LSB and ±1 LSB
Features
n 1 or 2 input channels
n No external clock required
n Analog input voltage range from GND to V+
n Overflow output available for cascading (ADC08061)
n ADC08061 pin-compatible with the industry standard
ADC0820
Applications
n Mobile telecommunications
n Hard disk drives
n Instrumentation
n High-speed data acquisition systems
Block Diagram
* ADC08061
** ADC08062
TRI-STATE® is a registered trademark of National Semiconductor Corporation.
© 1999 National Semiconductor Corporation DS011086
DS011086-1
www.national.com







ADC08062CIWM pdf, 数据表
Timing Diagrams
FIGURE 1. RD Mode (Mode Pin is Low)
DS011086-6
FIGURE 2. WR-RD Mode (Mode Pin is High and tRD tINTL)
DS011086-7
www.national.com
8







ADC08062CIWM equivalent, schematic
Notes
LIFE SUPPORT POLICY
NATIONAL’S PRODUCTS ARE NOT AUTHORIZED FOR USE AS CRITICAL COMPONENTS IN LIFE SUPPORT
DEVICES OR SYSTEMS WITHOUT THE EXPRESS WRITTEN APPROVAL OF THE PRESIDENT AND GENERAL
COUNSEL OF NATIONAL SEMICONDUCTOR CORPORATION. As used herein:
1. Life support devices or systems are devices or
systems which, (a) are intended for surgical implant
into the body, or (b) support or sustain life, and
whose failure to perform when properly used in
accordance with instructions for use provided in the
labeling, can be reasonably expected to result in a
significant injury to the user.
2. A critical component is any component of a life
support device or system whose failure to perform
can be reasonably expected to cause the failure of
the life support device or system, or to affect its
safety or effectiveness.
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National does not assume any responsibility for use of any circuitry described, no circuit patent licenses are implied and National reserves the right at any time without notice to change said circuitry and specifications.










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