THS0842

DUAL-INPUT, 8-BIT, 40 MSPS LOW-POWER ANALOG-TO-DIGITAL CONVERTER

WITH SINGLE OR DUAL PARALLEL BUS OUTPUT

SLAS246 – DECEMBER 1999

5

POST OFFICE BOX 655303

– 0.5 V to 4 V

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

– 0.5 V to 0.5 V

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Digital input voltage range to DGND

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Analog input voltage range to AGND

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Digital output voltage applied from external source to DGND

. . . . . . . . . . . . . . . . . . .

. . . . . . . . . . . . . . . . . . . .

–40

°C to 85°C

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

–55

°C to 150°C

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

† Stresses beyond those listed under “absolute maximum ratings” may cause permanent damage to the device. These are stress ratings only, and

functional operation of the device at these or any other conditions beyond those indicated under “recommended operating conditions” is not

implied. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability.

recommended operating conditions over operating free-air temperature range

power supply

MIN

NOM

MAX

UNIT

AVDD

Supply voltage

DVDD

3

3.3

3.6

V

DRVDD

analog and reference inputs

MIN

NOM

MAX

UNIT

Reference input voltage (top), V(REFT)

(NOM) – 0.2

AVDD – 1 (NOM) + 0.2

V

Reference input voltage (bottom), V(REFB)

0.8

1

1.2

V

Reference voltage differential, V(REFT) – V(REFB)

AVDD – 2

V

Analog input voltage, V(IN)

V(REFB)

V(REFT)

V

digital inputs

MIN

NOM

MAX

UNIT

High-level input voltage, VIH

2.0

DVDD

V

Low-level input voltage, VIL

DGND

0.2xDVDD

V

Clock period, tc

12.5

ns

Pulse duration, clock high, tw(CLKH)

5.25

ns

Pulse duration, clock low, tw(CLKL)

5.25

ns