Datasheet > ADS131M02_V01

ADS131M02_V01

更新时间： 2022-06-24 15:39:41

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德州仪器 - TI		/
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92页	3091K
描述
ADS131M02 2-Channel, Simultaneously-Sampling, 24-Bit, Delta-Sigma ADC

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ADS131M02_V01 数据手册

ADS131M02

SBAS853A – JANUARY 2020 – REVISED APRIL 2021

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6.5 Electrical Characteristics (continued)

minimum and maximum specifications apply from T_A= –40°C to +125°C; typical specifications are at T_A= 25°C; all

specifications are at AVDD = 3 V, DVDD = 3 V, f_CLKIN= 8.192 MHz, data rate = 4 kSPS, all channels enabled, global-chop

mode disabled and gain = 1 (unless otherwise noted)

PARAMETER

TEST CONDITIONS

MIN

TYP

MAX

UNIT

f_IN= 50 Hz or 60 Hz (up to 50 harmonics),

V_IN= –0.5 dBFS

SFDR

Spurious-free dynamic range

105

INTERNAL VOLTAGE REFERENCE

V_REF

Internal reference voltage

Accuracy

1.2

±0.1%

7.5

T_A= 25°C

Temperature drift

20 ppm/°C

DIGITAL INPUTS/OUTPUTS

V_IL

Logic input level, low

Logic input level, high

Logic output level, low

Logic output level, high

Input current

DGND

0.2 DVDD

V_IH

V_OL

V_OH

I_IN

0.8 DVDD

DVDD

I_OL= –1 mA

0.2 DVDD

I_OH= 1 mA

0.8 DVDD

–1

DGND < V_{Digital Input}< DVDD

µA

POWER SUPPLY

High-resolution mode

Low-power mode

1.8

1.0

2.15

1.15

0.75

µA

I_AVDD

I_DVDD

P_D

Analog supply current

Very-low-power mode

Current-detect mode

Standby mode

0.57

0.55

0.3

High-resolution mode

Low-power mode

0.27

0.14

0.08

0.05

0.35

0.19

0.12

Digital supply current⁽²⁾

Very-low-power mode

Current-detect mode

Standby mode

High-resolution mode

Low-power mode

6.2

3.4

µW

Power dissipation

Very-low-power mode

Current-detect mode

Standby mode

1.9

1.8

3.9

(1) Specified in µA/V because current can flow either into or out of the input pin.

(2) Currents measured with SPI idle.

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