ADC0820-N datasheet(2/25 Pages) TI1

部件名	ADC0820-N

功能描述	ADC0820 8-Bit High Speed 關P Compatible A/D Converter with Track/Hold Function

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制造商	TI1 [Texas Instruments]

网页	http://www.ti.com

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ADC0820

8-Bit High Speed µP Compatible A/D Converter with

Track/Hold Function

General Description

By using a half-flash conversion technique, the 8-bit

ADC0820 CMOS A/D offers a 1.5 µs conversion time and

dissipates only 75 mW of power. The half-flash technique

consists of 32 comparators, a most significant 4-bit ADC and

a least significant 4-bit ADC.

The input to the ADC0820 is tracked and held by the input

sampling circuitry eliminating the need for an external

sample-and-hold for signals moving at less than 100 mV/µs.

For ease of interface to microprocessors, the ADC0820 has

been designed to appear as a memory location or I/O port

without the need for external interfacing logic.

Key Specifications

j Resolution

8 Bits

j Conversion Time

2.5 µs Max (RD Mode)

1.5 µs Max (WR-RD Mode)

j Low Power

75 mW Max

j Total Unadjusted

Error

±1⁄2 LSB and ± 1 LSB

Features

n

Built-in track-and-hold function

n

No missing codes

n

No external clocking

n

Single supply — 5 V

DC

n

Easy interface to all microprocessors, or operates

stand-alone

n

Latched TRI-STATE output

n

Logic inputs and outputs meet both MOS and T

2L

voltage level specifications

n

Operates ratiometrically or with any reference value

equal to or less than V

CC

n

0V to 5V analog input voltage range with single 5V

supply

n

No zero or full-scale adjust required

n

Overflow output available for cascading

n

0.3" standard width 20-pin DIP

n

20-pin molded chip carrier package

n

20-pin small outline package

n

20-pin shrink small outline package (SSOP)

Connection and Functional Diagrams

Dual-In-Line, Small Outline

and SSOP Packages

Molded Chip Carrier

Package

00550101

Top View

00550133

March 2004

DS005501

www.national.com

类似零件编号 - ADC0820-N

制造商	部件名	数据表	功能描述
Texas Instruments	ADC0820-N	1Mb / 29P	[Old version datasheet] 8-Bit High Speed 關P Compatible A/D Converter with Track/Hold Function
Texas Instruments	ADC0820-N	1Mb / 29P	[Old version datasheet] 8-Bit High Speed 關P Compatible A/D Converter with Track/Hold Function

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类似说明 - ADC0820-N

制造商	部件名	数据表	功能描述
Texas Instruments	ADC0820-N	1Mb / 29P	[Old version datasheet] 8-Bit High Speed 關P Compatible A/D Converter with Track/Hold Function
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