8

HT574

900177 Rev. B

4-98

Helping You Control Your World

Honeywell reserves the right to make changes to any products or technology herein to improve reliability, function or design. Honeywell does not assume any liability

arising out of the application or use of any product or circuit described herein; neither does it convey any license under its patent rights nor the rights of others.

VDD to Analog Common ........................................................................................................................... 0V to +12.5V

VLOGIC to Digital Common ........................................................................................................................... 0V to +7V

Analog Common to Digital Common .......................................................................................................................

±1V

Control Inputs (CE, NCS, 12_N8, Ao, R_NS) to Digital Common ............................................ -0.5V to VLOGIC +0.5V

Analog Inputs (VREF_IN, BIP_OFF, 10V_IN) to Analog Common ....................................................................

±12.5V

20V_IN to Analog Common ..................................................................................................................................

±24V

VREF_OUT ............................................................................................................... Indefinite Short Circuit to Ground

Power Dissipation ........................................................................................................................................... 1000mW

Storage Temperature .............................................................................................................................. -65 to +325

°C

Lead Temperature (Attachment, 10 sec.) ............................................................................................................ 355

°C

ESD Protection .................................................................................................................................................... 2000V

ABSOLUTE MAXIMUM RATINGS (1)

(1) Stresses in excess of those listed above may result in permanent damage. These are stress ratings only, and operation at these levels is not implied.

Frequent or extended exposure to absolute maximum conditions may effect device reliability.

TRUTH TABLE FOR HT574 CONTROL

Case

CE

NCS

R_NC

12_N8

A0

Operation

1

2

3

4

5

6

7

8

9

10

11

X

1

0

0

0

0

0

0

0

0

X

1

1

1

1

1

1

1

X

X

0

0

0

0

1

1

1

X

X

X

X

X

X

X

X

1

0

0

X

X

0

1

0

1

0

1

X

0

1

None

None

Initiate 12 Bit Conversion

Enable 12 Bit Output

Enable 8 MSB's Only

Enable 4 LSB's + 4 Trailing Zero's

Initiate 8 Bit Conversion

Initiate 12 Bit Conversion

Initiate 8 Bit Conversion

Initiate 12 Bit Conversion

Initiate 8 Bit Conversion

To learn more about Honeywell Solid State Electronics Center,

visit our web site at http://www.ssec.honeywell.com