ADS9813 datasheet(6/66 Pages) TI

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5.3 Recommended Operating Conditions

over operating free-air temperature range (unless otherwise noted)

PARAMETER

TEST CONDITIONS

MIN

TYP

MAX

UNIT

POWER SUPPLY

AVDD_5V

Analog power supply

AVDD_5V to GND

4.75

5.25

VDD_1V8

Power supply

VDD_1V8 to GND

1.75

1.8

1.85

IOVDD

Digital interface power supply

IOVDD to GND

1.15

1.8

1.85

REFERENCE VOLTAGE

VREF

Reference voltage to the ADC

External reference

4.088

4.096

4.104

ANALOG INPUTS

VFSR

Full-scale input range

RANGE_CHx = 2

–2.5

2.5

RANGE_CHx = 1

–3.5

3.5

RANGE_CHx = 0

–5

RANGE_CHx = 3

–7

RANGE_CHx = 4

–10

RANGE_CHx = 5

–12

AINxP

Operating input voltage,

positive input

AINxP to GND

–17

AINxM

Operating input voltage,

negative input

AINxM to GND

–17

TEMPERATURE RANGE

Ambient temperature

–40

125

°C

5.4 Thermal Information

THERMAL METRIC(1)

ADS981x

UNIT

RSH (VQFN)

56 PINS

RθJA

Junction-to-ambient thermal resistance

23.2

°C/W

RθJC(top)

Junction-to-case (top) thermal resistance

10.5

°C/W

RθJB

Junction-to-board thermal resistance

6.1

°C/W

ΨJT

Junction-to-top characterization parameter

0.1

°C/W

ΨJB

Junction-to-board characterization parameter

6.0

°C/W

RθJC(bot)

Junction-to-case (bottom) thermal resistance

0.9

°C/W

(1)

For more information about traditional and new thermal metrics, see the Semiconductor and IC Package Thermal Metrics application

note.

ADS9813, ADS9811, ADS9810

SBASAQ6A – JULY 2024 – REVISED NOVEMBER 2024

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