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ADC0803
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General Description

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MFG:TOSHIBA Package Cooled:SOP D/C:1020

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Part Number: ADC0803

MFG: TOSHIBA

Package Cooled: SOP

D/C: 1020

Description: The ADC0801, ADC0802, ADC0803, ADC0804 and ADC0805 are CMOS 8-bit successive approximation A/D converters that use a di...

ADC0803 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.

ADC0803 Maximum Ratings

Supply Voltage (V_CC) (Note 3)                                    6.5V
Voltage
Logic Control Inputs                                    −0.3V to +18V
At Other Input and Outputs             −0.3V to (V_CC+0.3V)
Lead Temp. (Soldering, 10 seconds)
Dual-In-Line Package (plastic)                                  260˚C
Dual-In-Line Package (ceramic)                                300˚C
Surface Mount Package
Vapor Phase (60 seconds)                                      215˚C

ADC0803 Features

Compatible with 8080 µP derivatives-no interfacing logic needed - access time - 135 ns
Easy interface to all microprocessors, or operates "stand alone"
Differential analog voltage inputs
Logic inputs and outputs meet both MOS and TTL voltage level specifications
Works with 2.5V (LM336) voltage reference
On-chip clock generator
0V to 5V analog input voltage range with single 5V supply
No zero adjust required
0.3" standard width 20-pin DIP package
20-pin molded chip carrier or small outline package
Operates ratiometrically or with 5 V_DC, 2.5 V_DC,or analog span adjusted voltage reference

ADC0803 Connection Diagram

ADC0803 datasheet

ADC0803
PDF/DataSheet Download

Datasheet: ADC0803
File Size: 111921 KB
Manufacturer: NSC [National Semiconductor]
Click here to Download

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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 INS8080...
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