AD7173-8(Rev0) Ver la hoja de datos (PDF) - Analog Devices

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Fabricante

AD7173-8
(Rev.:Rev0)

Low Power, 8-/16-Channel, 31.25 kSPS, 24-Bit, Highly Integrated Sigma-Delta ADC

Analog Devices 

AD7173-8

Data Sheet

Parameter

Power Supply Rejection

(Line Regulation)

Load Regulation

Voltage Noise

Voltage Noise Density

Turn-On Settling Time

Long-Term Stability3

Short Circuit

EXTERNAL REFERENCE

Reference Input Voltage

Absolute Reference Input Voltage

Limits1

Buffers Disabled

Buffers Enabled

Average Reference Input Current

Buffers Disabled

Buffers Enabled

Average Reference Input Current Drift

External clock

Internal clock

Normal Mode Rejection1

Common-Mode Rejection

TEMPERATURE SENSOR

Accuracy

Sensitivity

BURNOUT CURRENTS

Source/Sink Current

BRIDGE POWER-DOWN SWITCH

RON

Allowable Currents

GENERAL-PURPOSE I/O (GPIO0, GPIO1,

GPO2, GPO3)

Input Mode Leakage Current1

Floating State Output Capacitance

AVDD1 − AVSS = 5 V

Output High Voltage, VOH1

Output Low Voltage, VOL1

Input High Voltage, VIH1

Input Low Voltage, VIL1

AVDD1 − AVSS = 3.3 V

Output High Voltage, VOH1

Output Low Voltage, VOL1

Input High Voltage, VIH1

Input Low Voltage, VIL1

CLOCK

Internal Clock

Frequency

Accuracy

Duty Cycle

Output Low Voltage, VOL

Output High Voltage, VOH

Crystal

Frequency

Start-Up Time

External Clock (CLKIO)

Duty Cycle1

Test Conditions/Comments

AVDD1 and AVDD2

∆VOUT/∆IL

eN, 0.1 Hz to 10 Hz

eN, 1 kHz

100 nF capacitor

1000 hours

ISC

Reference input = (REF+) − (REF−)

Buffers disabled

See the Rejection parameter

After user calibration at 25°C

Analog input buffers must be enabled

With respect to AVSS

ISOURCE = 200 µA

ISINK = 800 µA

ISOURCE = 200 µA

ISINK = 800 µA

Typical duty cycle 50:50 (maximum:minimum)

Rev. 0 | Page 4 of 64

Min

1

AVSS − 0.05

AVSS

−10

AVSS + 4

AVSS + 3

AVSS + 2.7

AVSS + 2

−2.5

0.8 × IOVDD

14

30:70

Typ

90

140

6.5

215

60

460

25

2.5

±9

±50

±5

±6

83

±2

477

±10

24

5

2

50:50

16

10

2

50:50

Max

AVDD1

Unit

dB

ppm/mA

µV rms

nV/√Hz

µs

ppm

mA

V

AVDD1 + 0.05 V

AVDD1

V

µA/V

nA

nA/V/°C

nA/V/°C

dB

°C

µV/°C

µA

Ω

16

mA

+10

µA

pF

V

AVSS + 0.4 V

V

AVSS + 0.7 V

V

AVSS + 0.27 V

V

AVSS + 0.45 V

MHz

+2.5

%

0.4

V

V

16.384

MHz

µs

2.048

MHz

70:30

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