AD7381 datasheet(4/31 Pages) AD

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AD7380-4

Data Sheet

Rev. 0 | Page 4 of 31

VCC = 3.0 V to 3.6 V, VLOGIC = 1.65 V to 3.6 V, external VREF = 2.5 V, TA = −40°C to +125°C, no oversampling enabled, unless otherwise noted.

Table 3

Parameter

Test Conditions/Comments

Min

Typ

Max

Unit

SAMPLING DYNAMICS

Input Bandwidth

At −0.1 dB

6.6

MHz

At −3 dB

26.8

MHz

Aperture Delay

Aperture Delay Match

46.8

145

Aperture Jitter

REFERENCE INPUT

VREF Input Voltage Range

External reference

2.49

3.4

VREF Input Current

External reference

0.9

1.2

DIGITAL INPUTS (SCLK, SDI, CS)

Logic Levels

Input Voltage Low (VIL)

VLOGIC < 2.3 V

0.45

VLOGIC ≥ 2.3 V

0.7

Input Voltage High (VIH)

VLOGIC < 2.3 V

VLOGIC −

0.45 V

VLOGIC ≥ 2.3 V

0.8 × VLOGIC

Input Current Low (IIL)

−1

µA

Input Current High (IIH)

−1

µA

DIGITAL OUTPUTS (SDOA, SDOB, SDOC,

SDOD/ALERT)

Output Coding

Twos complement

Bits

Output Voltage Low (VOL)

Current sink (ISINK) = 300 µA

0.4

Output Voltage High (VOH)

Current source (ISOURCE) = −300 µA

VLOGIC − 0.3

Floating State Leakage Current

±1

µA

Floating State Output Capacitance

POWER SUPPLIES

VCC

3.0

3.3

3.6

External reference = 3.3 V

3.15

3.3

3.6

VLOGIC

1.65

3.6

VCC Supply Current (IVCC)

Normal Mode (Static)

1.7

Shutdown Mode

101

200

µA

VLOGIC Current (IVLOGIC)

Analog inputs at positive full scale

Normal Mode (Static)

200

Normal Mode (Operational)

7.3

Shutdown Mode

200

Power Dissipation

VCC Power (PVCC)

Normal Mode (Static)

6.1

7.2

Shutdown Mode

363.6

720

µW

VLOGIC Power (PVLOGIC)

Analog inputs at positive full scale

Normal Mode (Static)

720

Normal Mode (Operational)

26.3

Shutdown Mode

720

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