AD7764 datasheet(4/21 Pages) AD

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AD7764

Preliminary Technical Data

Rev. PrC | Page 4 of 21

Parameter

Test Conditions/Comments

Specifcation

Unit

At modulator inputs

pF typ

REFERENCE INPUT/OUTPUT

VREF Input Voltage

VDD3 = 5V ± 5%

+4.096

Volts

VREF Input DC Leakage Current

±1

µA max

VREF Input Capacitance

pF max

POWER DISSIPATION

Total Power Dissipation

TBD

mW max

POWER REQUIREMENTS

AVDD1 (Modulator Supply)

±5%

+2.5

Volts

AVDD2 (General Supply)

±5%

Volts

AVDD3 (Diff-Amp Supply)

+3.15/+5.25

V min/max

AVDD4 (Ref Buffer Supply)

+3.15/+5.25

V min/max

DVDD

±5%

+2.5

Volts

AIDD1 (Modulator)

TBD

mA typ

AIDD2 (General)

TBD

mA typ

AIDD4 (Reference Buffer)

AVDD4 = +5V

mA typ

AIDD3 (Diff Amp)

AVDD3 = 5V

mA typ

DIDD

Clock Stopped

TBD

mA typ

DIGITAL I/O

MCLK Input Amplitude3

V typ

Input Capacitance

7.3

pF typ

Input Leakage Current

±1

μA/pin

max

Three-State Leakage Current (SDO)

±1

μA max

VINH

TBD

V min

VINL

TBD

V max

VOH4

1.5

V min

VOL

0.1

V max

1 See Terminology section

2 SNR specifications in dBs are referred to a full-scale input, FS. Tested with an input signal at 0.5dB below full scale, unless otherwise specified.

3 While the AD7764 can function with an MCLK amplitude of less than 5 V, this is the recommended amplitude to achieve the performance as stated.

4 Tested with a 400μA load current.

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