ADC08061 datasheet(1/16 Pages) NSC

Part #	ADC08061

Description	500 ns A/D Converter with S/H Function and Input Multiplexer

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Manufacturer	NSC [National Semiconductor (TI)]

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ADC08061/ADC08062

500 ns A/D Converter with S/H Function and Input

Multiplexer

General Description

Using a patented multi-step A/D conversion technique, the

8-bit ADC08061 and ADC08062 CMOS ADCs offer 500 ns

(typ) conversion time, internal sample-and-hold (S/H), and

dissipate only 125 mW of power. The ADC08062 has a

two-channel multiplexer. The ADC08061/2 family performs

an 8-bit conversion using a 2-bit voltage estimator that gen-

erates the 2 MSBs and two low-resolution (3-bit) flashes that

generate the 6 LSBs.

Input track-and-hold circuitry eliminates the need for an ex-

ternal sample-and-hold. The ADC08061/2 family performs

accurate conversions of full-scale input signals that have a

frequency range of DC to 300 kHz (full-power bandwidth)

without need of an external S/H.

The digital interface has been designed to ease connection

to microprocessors and allows the parts to be I/O or memory

mapped.

Key Specifications

n Resolution

8 bits

n Conversion Time

560 ns max (WR-RD Mode)

n Full Power Bandwidth

300 kHz

n Throughput rate

1.5 MHz

n Power Dissipation

100 mW max

n Total Unadjusted Error

±1⁄2 LSB and ±1 LSB

Features

n 1 or 2 input channels

n No external clock required

n Analog input voltage range from GND to V

+

n Overflow output available for cascading (ADC08061)

n ADC08061 pin-compatible with the industry standard

ADC0820

Applications

n Mobile telecommunications

n Hard disk drives

n Instrumentation

n High-speed data acquisition systems

Block Diagram

TRI-STATE® is a registered trademark of National Semiconductor Corporation.

DS011086-1

* ADC08061

** ADC08062

June 1999

DS011086

www.national.com

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ADC08061 Datasheet(PDF) 1 Page - National Semiconductor (TI)

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