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ADC0804LCJ Datasheet(Hoja de datos) 1 Page - National Semiconductor (TI)

[Old version datasheet] Texas Instruments acquired National semiconductor.
No. de Pieza. ADC0804LCJ
Descripción  8-Bit μP Compatible A/D Converters
Descarga  41 Pages
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Fabricante  NSC [National Semiconductor (TI)]
Página de inicio  http://www.national.com
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ADC0801/ADC0802/ADC0803/ADC0804/ADC0805
8-Bit µP Compatible A/D Converters
General Description
The
ADC0801,
ADC0802,
ADC0803,
ADC0804
and
ADC0805 are CMOS 8-bit successive approximation A/D
converters
that
use
a
differential
potentiometric
ladder — similar to the 256R products. These converters are
designed to allow operation with the NSC800 and INS8080A
derivative control bus with TRI-STATE output latches directly
driving the data bus. These A/Ds appear like memory loca-
tions or I/O ports to the microprocessor and no interfacing
logic is needed.
Differential analog voltage inputs allow increasing the
common-mode rejection and offsetting the analog zero input
voltage value. In addition, the voltage reference input can be
adjusted to allow encoding any smaller analog voltage span
to the full 8 bits of resolution.
Features
n
Compatible with 8080 µP derivatives — no interfacing
logic needed - access time - 135 ns
n
Easy interface to all microprocessors, or operates “stand
alone”
n
Differential analog voltage inputs
n
Logic inputs and outputs meet both MOS and TTL
voltage level specifications
n
Works with 2.5V (LM336) voltage reference
n
On-chip clock generator
n
0V to 5V analog input voltage range with single 5V
supply
n
No zero adjust required
n
0.3" standard width 20-pin DIP package
n
20-pin molded chip carrier or small outline package
n
Operates ratiometrically or with 5 V
DC, 2.5 VDC,or
analog span adjusted voltage reference
Key Specifications
n
Resolution
8 bits
n
Total error
±14 LSB, ±12 LSB and ±1 LSB
n
Conversion time
100 µs
Connection Diagram
Ordering Information
TEMP RANGE
0˚C TO 70˚C
0˚C TO 70˚C
−40˚C TO +85˚C
±14 Bit Adjusted
ADC0801LCN
ERROR
±12 Bit Unadjusted
ADC0802LCWM
ADC0802LCN
±12 Bit Adjusted
ADC0803LCN
±1Bit Unadjusted
ADC0804LCWM
ADC0804LCN
ADC0805LCN/ADC0804LCJ
PACKAGE OUTLINE
M20B — Small
Outline
N20A — Molded DIP
Z-80® is a registered trademark of Zilog Corp.
ADC080X
Dual-In-Line and Small Outline (SO) Packages
DS005671-30
See Ordering Information
November 1999
© 2001 National Semiconductor Corporation
DS005671
www.national.com




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