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ADC0801

National Semiconductor
Part Number ADC0801
Manufacturer National Semiconductor
Description 8-Bit uP Compatible A/D Converters
Published Mar 24, 2005
Detailed Description ADC0801/ADC0802/ADC0803/ADC0804/ADC0805 8-Bit µP Compatible A/D Converters November 1999 ADC0801/ADC0802/ADC0803/ADC08...
Datasheet PDF File ADC0801 PDF File

ADC0801
ADC0801

Overview
ADC0801/ADC0802/ADC0803/ADC0804/ADC0805 8-Bit µP Compatible A/D Converters November 1999 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 locations 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.
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 VDC, 2.
5 VDC, or analog span adjusted voltage reference Key Specifications n Resolution n Total error n Conversion time 8 bits 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” ± 1⁄4 LSB, ± 1⁄2 LSB and ± 1 LSB 100 µs Connection Diagram ADC080X Dual-In-Line and Small Outline (SO) Packages DS005671-30 See Ordering Information Ordering Information TEMP RANGE ERROR 0˚C TO 70˚C ADC0802LCWM ADC0804LCWM M20B — Small Outline ADC0804LCN 0˚C TO 70˚C −40˚C TO +85˚C ADC0801LCN ADC0802LCN ADC0803LCN ADC0805LCN/ADC0804LCJ N20A — Molded DIP ± 1⁄4 Bit Adjusted ± 1⁄2...


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