Data Sheet

AD7383-4/AD7384-4

SPECIFICATIONS

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Rev. 0 | 5 of 33

VCC = 3.0 V to 3.6 V, VLOGIC = 1.65 V to 3.6 V, external VREF = 2.5 V to 3.3 V, TA = −40°C to +125°C, and no oversampling enabled, unless

otherwise noted. SDOA, SDOB, SDOC, and SDOD are connected with 100 Ω series resistor.

Table 4. All Devices

Parameter

Test Conditions/Comments

Min

Typ

Max

Unit

ANALOG INPUT

Voltage Range

AINx+ − AINx−

−VREF

+VREF

V

Absolute Input Voltage

AINx+, AINx−

−0.1

VREF + 0.1

V

Common-Mode Input Range

AINx+, AINx−

0.2

VREF × 0.5

VREF − 0.2

V

Analog Input Common-Mode Rejection

Ratio (CMRR)

fIN = 500 kHz

−76

dB

DC Leakage Current

0.1

1

µA

Input Capacitance

Track mode

18

pF

Hold mode

5

pF

SAMPLING DYNAMICS

Input Bandwidth

At −0.1 dB

6.6

MHz

At −3 dB

26.8

MHz

Aperture Delay

2

ns

Aperture Delay Match

46.8

145

ps

Aperture Jitter

20

ps

REFERENCE INPUT AND OUTPUT

(VREF)

Input Voltage Range

External reference

2.49

3.4

V

Input Current

External reference

0.91

0.97

mA

Output Voltage

−40°C to +125°C

2.495

2.5

2.505

V

Temperature Coefficient

2

10

ppm/°C

Noise

7

µV RMS

DIGITAL INPUTS (SCLK, SDI, AND CS)

Logic Levels

Input Voltage Low (VIL)

VLOGIC < 2.3 V

0.45

V

VLOGIC ≥ 2.3 V

0.7

V

Input Voltage High (VIH)

VLOGIC < 2.3 V

VLOGIC − 0.45

V

VLOGIC ≥ 2.3 V

0.8 × VLOGIC

V

Input Current Low (IIL)

−1

+1

µA

Input Current High (IIH)

−1

+1

µA

DIGITAL OUTPUTS (SDOA, SDOB,

SDOC, AND SDOD/ALERT)

Output Coding

Twos complement

Bits

Output Voltage Low (VOL)

Current sink (ISINK) = 300 µA

0.4

V

Output Voltage High (VOH)

Current source (ISOURCE) = −300 µA

VLOGIC − 0.3

V

Floating State Leakage Current

±1

µA

Floating State Output Capacitance

10

pF

POWER SUPPLIES

VCC

3.0

3.3

3.6

V

External reference = 3.3 V

3.3

3.6

V

VLOGIC

1.65

3.6

V

IVCC

Normal Mode (Static)

2.6

3.2

mA

Shutdown Mode

104

200

µA

VLOGIC Current (IVLOGIC)

Analog inputs at positive full scale