adc-228 C&D Technologies., adc-228 Datasheet

adc-228

Manufacturer Part Number

adc-228

Description

8-bit, 20mhz, Complete Flash A/d Converter

Manufacturer

C&D Technologies.

Datasheet

1.ADC-228.pdf (4 pages)

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adc-228MC

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PRELIMINARY PRODUCT DATA

DATEL, Inc., 11 Cabot Boulevard, Mansfield, MA 02048-1151 (U.S.A.) • Tel: (508) 339-3000 Fax: (508) 339-6356 • For immediate assistance (800) 233-2765

FEATURES

• 8-Bit flash A/D converter

• 20MHz sampling rate

• Complete support circuitry

• Low power, 900mW

• Sample-hold not required

• Three-state outputs

• MIL-STD-883 versions

GENERAL DESCRIPTION

The ADC-228A combines analog front-end circuitry and a flash

A/D converter to digitize high-speed analog signals at a rate of

20 million samples per second. The ADC-228A contains an 8-

bit, 20MHz, flash A/D, a wideband analog input buffer, a

precision voltage reference, temperature compensation

circuitry, reference trims, and a three-state output buffer in a

24-pin package.

The ADC-228A offers significant savings by combining all of

the circuitry in a single package. Valuable board real estate is

saved, and design time and manufacturing costs are reduced.

The ADC-228A is housed in a 24-pin ceramic DDIP package

and is available in the commercial, 0 to +70°C, or military,

–55 to +125°C, temperature ranges. A MIL-STD-883 version

is also available. Operation is from ±15V and +5V power

supplies.

INNOVATION and EX C ELL E N C E

Figure 1. Functional Block Diagram

FUNCTION

+5V SUPPLY

GROUND

+5V REFERENCE OUT

GROUND

ANALOG INPUT

GROUND

NO CONNECTION

–15V SUPPLY

CS1

CS2

INPUT/OUTPUT CONNECTIONS

8-Bit, 20MHz, Complete

Flash A/D Converter

ADC-228A

FUNCTION

BIT 8 (LSB)

BIT 7

BIT 6

BIT 5

NO CONNECTION

+15V SUPPLY

CLOCK INPUT

BIT 4

BIT 3

BIT 2

BIT 1 (MSB)

NO CONNECTION

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