ADC-228/883 ETC [List of Unclassifed Manufacturers], ADC-228/883 Datasheet

ADC-228/883

Manufacturer Part Number

ADC-228/883

Description

8-Bit, 20MHz, Complete 8-Bit, 20MHz, Complete Flash A/D Converter

Manufacturer

ETC [List of Unclassifed Manufacturers]

Datasheet

1.ADC-228883.pdf (4 pages)

Current page: 1 of 4
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DATEL, Inc., 11 Cabot Boulevard, Mansfield, MA 02048-1151 (U.S.A.)

FEATURES

GENERAL DESCRIPTION

The ADC-228 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-228 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-228 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-228 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.

8-Bit flash A/D converter

20MHz sampling rate

7MHz full power bandwidth

Complete support circuitry

Low power, 1.5W

Sample-hold not required

Three-state outputs

MIL-STD-883 versions

IN N O VA T IO N a n d E X C E L L E N C E

ANALOG INPUT 5

+15V SUPPLY 19

–15V SUPPLY 10

+5V SUPPLY 1

GROUND 7

GROUND 6

GROUND 4

GROUND 2

CLOCK 18

NMINV 9

NLINV 8

CS1 11

CS1 12

BUFFER

INPUT

& TEMPERATURE

COMPENSATION

LINEARIZATION

REFERENCE

NETWORK

VOLTAGE

Figure 1. Functional Block Diagram

Tel: (508) 339-3000 Fax: (508) 339-6356

CONVERTER

20MHz

FLASH

8-BIT

FUNCTION

+5V SUPPLY

GROUND

+5V REFERENCE OUT

GROUND

ANALOG INPUT

GROUND

NLINV

NMINV

–15V SUPPLY

CS1

INPUT/OUTPUT CONNECTIONS

TRI-STATE

8-Bit, 20MHz, Complete

BUFFER

Flash A/D Converter

For immediate assistance (800) 233-2765

13 NO CONNECTION

20 NO CONNECTION

14 BIT 1 (MSB)

15 BIT 2

16 BIT 3

17 BIT 4

21 BIT 5

22 BIT 6

23 BIT 7

24 BIT 8 (LSB)

3 +5V REF. OUT

ADC-228

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

Related parts for ADC-228/883

ADC-228/883 Summary of contents

Page 1

... The ADC-228 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-228 is housed in a 24-pin ceramic DDIP package and is available in the commercial +70°C, or military, –55 to +125°C, temperature ranges. A MIL-STD-883 version is also available. Operation is from ± ...

Page 2

... Power Dissipation — — ns ±12V, +5V Nominal Over full supply range ±15V, +5V Nominal PHYSICAL/ENVIRONMENTAL comp., Operating Temp. Range, Case 8 bits ADC-228MC — — Volts ADC-228MM, ADC-228/883 — +0.4 Volts Storage Temp. Range Package Type — –1 mA Weight — Footnotes: — ...

Page 3

... Use optional resistor only if 4.7µF amp is not used to drive input /1.667mA EE +15V Figure 3. ADC-228 Typical Connections Table 2. ADC-228 Bipolar Output Coding (Assumes analog input is externally offset) COMP. BIN. NMINV = 1 ANALOG NLINV = 1 INPUT CODE 0000 0001 0011 1111 +2.480V +FS – ...

Page 4

... MODEL ADC-228MC ADC-228MM ADC-228/883 Receptacle for PC board mounting can be ordered through AMP Inc., part # 3-331272-8 (component lead socket), 24 required. Contact DATEL for 883 product specifications ® ® DATEL, Inc ...

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