ADC0803 datasheet(1/17 Pages) RENESAS

部件名	ADC0803

功能描述	8-Bit, Microprocessor-Compatible, A/D Converters

PDF	17 Pages

Scroll/Zoom	100%

制造商	RENESAS [Renesas Technology Corp]

网页	http://www.renesas.com

标志

1 / 17 page

FN3094 Rev 4.00

Page 1 of 17

August 2002

FN3094

Rev 4.00

August 2002

ADC0803, ADC0804

8-Bit, Microprocessor-Compatible, A/D Converters

DATASHEET

The ADC080X family are CMOS 8-Bit,

successive-approximation A/D converters which use a

modified potentiometric ladder and are designed to operate

with the 8080A control bus via three-state outputs. These

converters appear to the processor as memory locations or

I/O ports, and hence no interfacing logic is required.

The differential analog voltage input has good common-

mode-rejection and permits offsetting the analog zero-input-

voltage value. In addition, the voltage reference input can be

adjusted to allow encoding any smaller analog voltage span

to the full 8 bits of resolution.

Typical Application Schematic

Features

• 80C48 and 80C80/85 Bus Compatible - No Interfacing

Logic Required

• Conversion Time . . . . . . . . . . . . . . . . . . . . . . . . . . <100

s

• Easy Interface to Most Microprocessors

• Will Operate in a “Stand Alone” Mode

• Differential Analog Voltage Inputs

• Works with Bandgap Voltage References

• TTL Compatible Inputs and Outputs

• On-Chip Clock Generator

• Analog Voltage Input Range

(Single + 5V Supply) . . . . . . . . . . . . . . . . . . . . . . 0V to 5V

• No Zero-Adjust Required

• 80C48 and 80C80/85 Bus Compatible - No Interfacing

Logic Required

Pinout

ADC0803, ADC0804

(PDIP)

TOP VIEW

3

2

1

12

11

5

15

14

13

18

17

16

7

6

10

9

8

4

19

20

WR

RD

CS

DB6

DB7

INTR

DB3

DB4

DB5

DB0

DB1

DB2

CLK IN

CLK R

V+

VIN (-)

VIN (+)

DGND

VREF/2

AGND

ANY

PROCESSOR

8-BIT RESOLUTION

OVER ANY

DESIRED

ANALOG INPUT

VOLTAGE RANGE

DIFF

INPUTS

10K

150pF

VREF/2

+5V

11

12

13

14

15

16

17

18

20

19

10

9

8

7

6

5

4

3

2

1

WR

RD

CS

CLK IN

INTR

VIN (-)

VIN (+)

DGND

VREF/2

AGND

V+ OR VREF

CLK R

DB0 (LSB)

DB1

DB2

DB3

DB4

DB5

DB6

DB7 (MSB)

Ordering Information

PART NUMBER

ERROR

EXTERNAL CONDITIONS

TEMP. RANGE (oC)

PACKAGE

PKG. NO

ADC0803LCN

1

/2 LSB

VREF/2 Adjusted for Correct Full Scale

Reading

0 to 70

20 Ld PDIP

E20.3

ADC0804LCN



1 LSB

VREF/2 = 2.500VDC (No Adjustments)

0 to 70

20 Ld PDIP

E20.3

类似零件编号 - ADC0803

制造商	部件名	数据表	功能描述
National Semiconductor ...	ADC0803	1Mb / 41P	8-Bit uP Compatible A/D Converters
NXP Semiconductors	ADC0803	187Kb / 18P	CMOS 8-bit A/D converters 2002 Oct 17
Intersil Corporation	ADC0803	250Kb / 16P	8-Bit, Microprocessor- Compatible, A/D Converters August 1997
Intersil Corporation	ADC0803	580Kb / 17P	8-Bit, Microprocessor-Compatible, A/D Converters August 2002
NXP Semiconductors	ADC0803	154Kb / 18P	CMOS 8-bit A/D converters 2002 Oct 17

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类似说明 - ADC0803

制造商	部件名	数据表	功能描述
National Semiconductor ...	ADC0801	1Mb / 41P	8-Bit uP Compatible A/D Converters
Intersil Corporation	ADC0802	250Kb / 16P	8-Bit, Microprocessor- Compatible, A/D Converters August 1997
Intersil Corporation	ADC0803	580Kb / 17P	8-Bit, Microprocessor-Compatible, A/D Converters August 2002
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