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ADC0808
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MFG:TEXAS Package Cooled:PLCC

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Part Number: ADC0808

MFG: TEXAS

Package Cooled: PLCC

Description: The ADC0808, ADC0809 data acquisition component is a monolithic CMOS device with an 8-bit analog-to-digital converter, ...

ADC0808 General Description

The ADC0808, ADC0809 data acquisition component is a monolithic CMOS device with an 8-bit analog-to-digital converter, 8-channel multiplexer and microprocessor compatible control logic. The 8-bit A/D converter uses successive ap- proximation as the conversion technique. The converter features a high impedance chopper stabilized comparator, a 256R voltage divider with analog switch tree and a succes- sive approximation register. The 8-channel multiplexer can directly access any of 8-single-ended analog signals. The device eliminates the need for external zero and full-scale adjustments. Easy interfacing to microprocessors is provided by the latched and decoded multiplexer address inputs and latched TTL TRI-STATE® outputs.

The design of the ADC0808, ADC0809 has been optimized by incorporating the most desirable aspects of several A/D conversion techniques. The ADC0808, ADC0809 offers high speed, high accuracy, minimal temperature dependence, excellent long-term accuracy and repeatability, and consumes minimal power. These features make this device ideally suited to applications from process and machine control to consumer and automotive applications. For 16-channel multiplexer with common output (sample/hold port) see ADC0816 data sheet. (See AN-247 for more information.)

ADC0808 Maximum Ratings

Supply Voltage (V_CC) (Note 3)                                  6.5V
Voltage at Any Pin                                                    −0.3V to (V_CC+0.3V)
Except Control Inputs
Voltage at Control Inputs                                        −0.3V to +15V
(START, OE, CLOCK, ALE, ADD A, ADD B, ADD C)
Storage Temperature Range                                    −65˚C to +150˚C
Package Dissipation at T_A=25˚C                               875 mW
Lead Temp. (Soldering, 10 seconds)
Dual-In-Line Package (plastic)                                  260˚C

ADC0808 Features

Easy interface to all microprocessors
Operates ratiometrically or with 5 VDC or analog span adjusted voltage reference
No zero or full-scale adjust required
8-channel multiplexer with address logic
0V to 5V input range with single 5V power supply
Outputs meet TTL voltage level specifications
Standard hermetic or molded 28-pin DIP package
28-pin molded chip carrier package
ADC0808 equivalent to MM74C949
ADC0809 equivalent to MM74C949-1

ADC0808 Connection Diagram

ADC0808 datasheet

ADC0808
PDF/DataSheet Download

Datasheet: ADC0808
File Size: 270878 KB
Manufacturer: NSC [National Semiconductor]
Click here to Download

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