AD4684 datasheet(4/32 Pages) AD

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Data Sheet

AD4684/AD4685

SPECIFICATIONS

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Table 1. Specifications

Parameter

Test Conditions/Comments

Min

Typ

Max

Unit

REFERENCE INPUT AND OUTPUT

VREF Input

External reference

Voltage Range

2.49

3.4

Current

0.47

0.51

VREF Output Voltage

At 25°C

2.498

2.5

2.502

−40°C to +125°C

2.496

2.5

2.505

VREF Temperature Coefficient

ppm/°C

VREF Noise

µV rms

DIGITAL INPUTS (SCLK, SDI, CS)

Logic Levels

Input Voltage

Low (VIL)

0.2 × VLOGIC

High (VIH)

0.8 × VLOGIC

Input Current

Low (IIL)

−1

µA

High (IIH)

−1

µA

DIGITAL OUTPUTS (SDOA, SDOB/ALERT)

Output Voltage

Low (VOL)

Sink current (ISINK) = 300 µA

0.4

High (VOH)

Source current (ISOURCE) = −300 µA

VLOGIC − 0.3

Floating State

Leakage Current

±1

µA

Output Capacitance

POWER SUPPLIES

VCC

3.0

3.3

3.6

External reference = 3.3 V

3.2

3.3

3.6

VLOGIC

1.65

3.6

VCC Current (IVCC)

Normal Mode (Operational)

AD4684, 1 MSPS

8.5

AD4685, 500 kSPS

Normal Mode (Static)

2.2

Shutdown Mode

100

200

µA

VLOGIC Current (IVLOGIC)

Normal Mode (Operational)

SDOA and SDOB at 0x1FFF

0.8

Normal Mode (Static)

200

Shutdown Mode

200

Power Dissipation

Total Power (PTOTAL) (Operational)

VCC Power (PVCC)

Normal Mode (Operational)

AD4684, 1 MSPS

AD4685, 500 kSPS

Normal Mode (Static)

7.3

10.8

Shutdown Mode

330

720

μW

VLOGIC Power (PVLOGIC)

Normal Mode (Operational)

SDOA and SDOB at 0x1FFF

2.6

3.6

Normal Mode (Static)

720

Shutdown Mode

720

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