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PDF ADC1061CIWM Data sheet ( Hoja de datos )
| Número de pieza | ADC1061CIWM | |
| Descripción | 10-Bit High-Speed P-Compatible A/D Converter with Track/Hold Function | |
| Fabricantes | National Semiconductor | |
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June 1999
ADC1061
10-Bit High-Speed µP-Compatible A/D Converter with
Track/Hold Function
General Description
Using a modified half-flash conversion technique, the 10-bit
ADC1061 CMOS analog-to-digital converter offers very fast
conversion times yet dissipates a maximum of only 235 mW.
The ADC1061 performs a 10-bit conversion in two
lower-resolution “flashes”, thus yielding a fast A/D without
the cost, power dissipation, and other problems associated
with true flash approaches.
The analog input voltage to the ADC1061 is tracked and held
by an internal sampling circuit. Input signals at frequencies
from DC to greater than 160 kHz can therefore be digitized
accurately without the need for an external sample-and-hold
circuit.
For ease of interface to microprocessors, the ADC1061 has
been designed to appear as a memory location or I/O port
without the need for external interface logic.
Features
n 1.8 µs maximum conversion time to 10 bits
n Low power dissipation: 235 mW (maximum)
n Built-in track-and-hold
n No external clock required
n Single +5V supply
n No missing codes over temperature
Applications
n Waveform digitizers
n Disk drives
n Digital signal processor front ends
n Mobile telecommunications
Simplified Block and Connection Diagrams
DS010559-2
TRI-STATE® is a registered trademark of National Semiconductor Corporation.
© 1999 National Semiconductor Corporation DS010559
www.national.com
1 page  
TRI-STATE Test Circuits and Waveforms (Continued)
Timing Diagrams
DS010559-5
DS010559-6
DS010559-7
FIGURE 1. Mode 1. The conversion time (tCONV) is determined by the internal timer.
FIGURE 2. Mode 2 (RD Mode). The conversion time (tCRD) includes
the sampling time, and is determined by the internal timer.
DS010559-8
5 www.national.com
5 Page 
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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