AD73322AST datasheet(4/43 Pages) AD

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AD73322

–4–

REV. B

Table I. Current Summary (AVDD = DVDD = +3.3 V)

Analog

Digital

Total Current

MCLK

Conditions

Current

(Typ)

(Max)

Comments

ADCs On Only

4.5

11.5

YES

REFOUT Disabled

DACs On Only

15.5

4.5

YES

REFOUT Disabled

ADCs and DACs On

19.5

24.5

YES

REFOUT Disabled

ADCs and DACs

and Input Amps On

YES

REFOUT Disabled

ADCs and DACs

and AGT On

32.5

YES

REFOUT Disabled

All Sections On

YES

REFCAP On Only

0.8

1.25

REFOUT Disabled

REFCAP and

REFOUT On Only

3.5

4.5

All Sections Off

1.5

1.9

YES

MCLK Active Levels Equal to

0 V and DVDD

All Sections Off

0.00

µA

Digital Inputs Static and Equal

to 0 V or DVDD

The above values are in mA and are typical values unless otherwise noted.

AD73322A

Parameter

Min

Typ

Max

Units

Test Conditions/Comments

LOGIC INPUTS

VINH, Input High Voltage

DVDD – 0.8

DVDD V

VINL, Input Low Voltage

0.8

IIH, Input Current

–10

+10

µA

CIN, Input Capacitance

LOGIC OUTPUT

VOH, Output High Voltage

DVDD – 0.4

DVDD V

|IOUT|

≤ 100 µA

VOL, Output Low Voltage

0.4

|IOUT|

≤ 100 µA

Three-State Leakage Current

–10

+10

µA

POWER SUPPLIES

AVDD1, AVDD2

2.7

3.3

DVDD

2.7

3.3

IDD

See Table I

NOTES

1 Operating temperature range is as follows: –40

°C to +85°C. Therefore, T

MIN = – 40°C and TMAX = +85°C.

2 Test conditions: Input PGA set for 0 dB gain, Output PGA set for 6 dB gain, no load on analog outputs (unless otherwise noted).

3 At input to sigma-delta modulator of ADC.

4 Guaranteed by design.

5 Overall group delay will be affected by the sample rate and the external digital filtering.

6 The ADC’s input impedance is inversely proportional to DMCLK and is approximated by: (3.3

× 1011)/DMCLK.

7 Between VOUTP1 and VOUTN1 or between VOUTP2 and VOUTN2.

8 At VOUT output.

9 Frequency responses of ADC and DAC measured with input at audio reference level (the input level that produces an output level of –10 dBm0), with 38 dB pream-

plifier bypassed and input gain of 0 dB.

10 Test Conditions: no load on digital inputs, analog inputs ac coupled to ground, no load on analog outputs.

Specifications subject to change without notice.

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