Philips Semiconductors Linear Products

Product specification

ADC0820

8-Bit, high-speed,

µP-compatible A/D converter with

track/hold function

August 31, 1994

570

PIN NO

SYMBOL

DESCRIPTION

RD Mode

INT going Low indicates that the conversion is completed and the data result is in the output latch. INT is reset by

the rising edge of RD or CS (see Figure 1).

10

GND

Ground

11

The bottom of resistor ladder, voltage range: GND

12

13

CS

CS must be Low in order for the RD or WR to be recognized by the converter.

14

DB4

3-State data output—Bit 4

15

DB5

3-State data output—Bit 5

16

DB6

3-State data output—Bit 6

17

DB7

3-State data output—Bit 7 (MSB)

18

OFL

be used to cascade 2 or more devices to have more resolution (9, 10-bit). It is always active and never becomes

3-state.

19

NC

No connection

20

Power supply voltage

SYMBOL

PARAMETER

RATING

UNIT

Supply voltage

7

V

Logic control inputs

V

Voltage at other inputs and output

V

Storage temperature range

-65 to +150

°C

N package

1690

mW

D package

1390

mW

Lead temperature (soldering, 10sec)

300

°C

Operating ambient temperature range

ADC0820CNEN/CNED

0 to +70

°C

NOTES:

1. Absolute Maximum Ratings are those values beyond which the life of the device may be impaired.

2. All voltages are measured with respect to GND, unless otherwise specified.

3. Derate above 25

°C at the following rates:

N package at 13.5mW/

°C

D package at 11.1mW/

°C