AD7484 datasheet(3/12 Pages) AD

3 / 12 page

REV. PrC

7/13/01

PRELIMINARY TECHNICAL DATA

–3–

AD7484

Parameter

Specification

Units

Test Conditions/Comments

POWER REQUIREMENTS

(continued)

Power Dissipation

Normal Mode (Operational)

mW max

NAP Mode

mW max

Standby Mode

µW max

NOTES

1Temperature ranges as follows: –40°C to +85°C.

2See Terminology

3Sample tested @ +25°C to ensure compliance

Specifications subject to change without notice.

TIMING CHARACTERISTICS 1,2

Parameter

Symbol

Min

Typ

Max

Units

(VDD = 5 V ±5%, AGND = DGND = 0 V, VREF = Internal;

All specifications TMIN to TMAX and valid for VDRIVE = 2.7 V to 5.25 V unless otherwise noted)

Data Read

Acquisition Time

tACQ

TBD

Conversion Time

tCONV

TBD

Quiet Time before Conversion start

tQUIET

TBD

Quiet Time during Conversion

tQUIET2

TBD

CONVST Pulse Width

TBD

CONVST falling edge to BUSY falling edge

TBD

CS falling edge to RD falling edge

TBD

Bus Access Time

TBD

CONVST falling edge to new Data valid

TBD

BUSY rising edge to new Data valid

TBD

Bus Relinquish Time

TBD

RD rising edge to CS rising edge

TBD

Data Write

WRITE Pulse Width

TBD

Data Setup time

t10

TBD

Data Hold time

t11

TBD

CS falling edge to WRITE rising edge

t12

TBD

WRITE falling edge to

CS rising edge

t13

TBD

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