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AD7631BCPZ

18-Bit, 250 kSPS, Differential Programmable Input PulSAR® ADC

Analog Devices 

Data Sheet

AD7631

ABSOLUTE MAXIMUM RATINGS

Table 5.

Parameter

Analog Inputs/Outputs

IN+1, IN−1 to AGND

REF, REFBUFIN, TEMP,

REFGND to AGND

Ground Voltage Differences

AGND, DGND, OGND

Supply Voltages

AVDD, DVDD, OVDD

AVDD to DVDD, AVDD to OVDD

DVDD to OVDD

VCC to AGND, DGND

VEE to GND

Digital Inputs

PDREF, PDBUF

Internal Power Dissipation2

Internal Power Dissipation3

Junction Temperature

Storage Temperature Range

Rating

VEE − 0.3 V to VCC + 0.3 V

AVDD + 0.3 V to

AGND − 0.3 V

±0.3 V

−0.3 V to +7 V

±7 V

±7 V

–0.3 V to +16.5 V

+0.3 V to −16.5 V

−0.3 V to OVDD + 0 .3 V

±20 mA

700 mW

2.5 W

125°C

−65°C to +125°C

Stresses above those listed under Absolute Maximum Ratings

may cause permanent damage to the device. This is a stress

rating only; functional operation of the device at these or any

other conditions above those indicated in the operational

section of this specification is not implied. Exposure to absolute

maximum rating conditions for extended periods may affect

device reliability.

ESD CAUTION

1 See the Analog Inputs section.

2 Specification is for the device in free air: 48-lead LFQP; θJA = 91°C/W and θJC = 30°C/W.

3 Specification is for the device in free air: 48-lead LFCSP; θJA = 26°C/W.

Rev. B | Page 7 of 32

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