AD7482AST datasheet(3/16 Pages) AD

3 / 16 page

REV. 0

AD7482

–3–

Parameter

Specification

Unit

Test Conditions/Comments

POWER REQUIREMENTS

VDD

±5%

VDRIVE

2.7

V min

5.25

V max

IDD

Normal Mode (Static)

mA max

CS and RD = Logic 1

Normal Mode (Operational)

mA max

NAP Mode

0.5

mA max

Standby Mode

µA max

0.5

µA typ

Power Dissipation

Normal Mode (Operational)

mW max

NAP Mode

2.5

mW max

Standby Mode

µW max

NOTES

1Temperature range is as follows: –40

°C to +85°C.

2SNR and SINAD figures quoted include external analog input circuit noise contribution of approximately 1 dB.

3See Typical Performance Characteristics section for analog input circuits used.

4See Terminology section.

5Sample tested @ 25

°C to ensure compliance.

6Digital input levels at GND or V

DRIVE.

Specifications subject to change without notice.

(VDD = 5 V

± 5%, AGND = DGND = 0 V, VREF = External, fSAMPLE = 3 MSPS; all specifications TMIN

to TMAX and valid for VDRIVE = 2.7 V to 5.25 V, unless otherwise noted.)

SPECIFICATIONS (continued)

Parameter

Symbol

Min

Typ

Max

Unit

DATA READ

Conversion Time

tCONV

300

Quiet Time before Conversion Start

tQUIET

100

CONVST Pulsewidth

5ns

CONVST Falling Edge to BUSY Falling Edge

CS Falling Edge to RD Falling Edge

0ns

Data Access Time

CONVST Falling Edge to New Data Valid

BUSY Rising Edge to New Data Valid

5ns

Bus Relinquish Time

RD Rising Edge to CS Rising Edge

0ns

CS Pulsewidth

t14

RD Pulsewidth

t15

DATA WRITE

WRITE Pulsewidth

5ns

Data Setup Time

t10

2ns

Data Hold Time

t11

6ns

CS Falling Edge to WRITE Falling Edge

t12

5ns

WRITE Falling Edge to

CS Rising Edge

t13

0ns

*All timing specifications given above are with a 25 pF load capacitance. With a load capacitance greater than this value, a digital buffer or latch must be used.

Specifications subject to change without notice.

TIMING CHARACTERISTICS*

(VDD = 5 V

± 5%, AGND = DGND = 0 V, VREF = External; all specifications TMIN to TMAX and valid for

VDRIVE = 2.7 V to 5.25 V, unless otherwise noted.)

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