ADC0820 datasheet(11/14 Pages) PHILIPS

Part #	ADC0820

Description	8-Bit, high-speed, mP-compatible A/D converter with track/hold function

PDF	14 Pages

Scroll/Zoom	100%

Manufacturer	PHILIPS [NXP Semiconductors]

Direct Link	http://www.nxp.com

Logo

11 / 14 page

Philips Semiconductors Linear Products

Product specification

ADC0820

8-Bit, high-speed,

µP-compatible A/D converter with

track/hold function

August 31, 1994

578

•

MS COMPARATORS ZERO

TO REFERENCE LADDER.

•

LS COMPARATORS FLOAT

•

MS COMPARATORS COMPARE

VIN TO THEIR REFERENCE

LADDER TAP. THE COMPARATOR

VIN • VLADDER TAP.

•

LS COMPARATORS ZERO TO VIN

THE COMPARATOR’S INPUT

CAPACTORS TRACK VIN.

•

MS COMPARATORS OUT–

PUTS ARE LATCHED. THE

MS DAC IS SET. THE MS

COMPARATOR FLOATS.

•

LS COMPARATORS COM–

PARE LSB SECTION OF REF–

ERENCE LADDER

•

LS COMPARATORS OUTPUTS

ARE LATCHED AND

CAN BE READ

•

MS COMPARATORS RE

TURN TO ZERO MODE.

600ns

Figure 8. Operating Sequence (WR-RD Mode)

a. External Reference 2.5V Full-Scale

b. Power Supply as Reference

c. Input not Referred to GND

IN+

GND

REF (+)

REF(–)

VIN(+)

VIN(–)

1.2k

2.5V

IN+

GND

REF (+)

REF(–)

VIN(+)

VIN(–)

IN+

GND

REF (+)

REF(–)

VIN(+)

VIN(–)

1.2k

2.5V

• CURRENT PATH MUST

STILL EXIST FROM

VIN(–) TO GROUND

Figure 9. Analog Input Options

ADC0820 Datasheet(PDF) 11 Page - NXP Semiconductors

ADC0820 Datasheet(HTML) 11 Page - NXP Semiconductors

Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14

Datasheet Download

Link URL