ADS114S08IRHBR datasheet(10/103 Pages) TI1

Part #	ADS114S08IRHBR

Description	Low-Power, Low-Noise, Highly Integrated, 6- and 12-Channel, 4-kSPS, 16-Bit, Delta-Sigma ADC with PGA and Voltage Reference

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Manufacturer	TI1 [Texas Instruments]

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ADS114S06, ADS114S08

SBAS815 – FEBRUARY 2017

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Product Folder Links: ADS114S06 ADS114S08

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Electrical Characteristics (continued)

minimum and maximum specifications apply from TA = –50°C to +125°C; Typical specifications are at TA = 25°C;

all specifications are at AVDD = 2.7 V to 5.25 V, AVSS = 0 V, DVDD = IOVDD = 3.3 V, all gains, internal reference, internal

oscillator, all data rates, and global chop disabled (unless otherwise noted)

PARAMETER

TEST CONDITIONS

MIN

TYP

MAX

UNIT

BIAS VOLTAGE

VBIAS

Output voltage settings

(AVDD + AVSS) / 2,

(AVDD + AVSS) / 12

V

Output impedance

350

Ω

Startup time

Combined capacitive load on all selected analog

inputs CLOAD = 1 µF, 0.1% settling

2.8

ms

BURNOUT CURRENT SOURCES (BOCS)

Current settings

0.2, 1, 10

µA

Accuracy

0.2 µA, sinking or sourcing

±8%

1 µA, sinking or sourcing

±4%

10 µA, sinking or sourcing

±2%

PGA RAIL DETECTION

Positive rail threshold

Referred to the output of the PGA

AVDD – 0.15

V

Negative rail threshold

Referred to the output of the PGA

AVSS + 0.15

V

REFERENCE DETECTION

Threshold 1

0.3

V

Threshold 2

1/3·(AVDD – AVSS)

V

Threshold 2 accuracy

–3%

±1%

3%

Pull-together resistance

10

MΩ

SUPPLY VOLTAGE MONITORS

Accuracy

(AVDD – AVSS) / 4 monitor

±1%

DVDD / 4 monitor

±1%

TEMPERATURE SENSOR

Output voltage

TA = 25°C

129

mV

Temperature coefficient

403

µV/°C

LOW-SIDE POWER SWITCH

RON

On-resistance

1

3

Ω

Current through switch

75

mA

GENERAL-PURPOSE INPUT/OUTPUTS (GPIOs)

VIL

Logic input level, low

AVSS – 0.05

0.3 AVDD

V

VIH

Logic input level, high

0.7 AVDD

AVDD + 0.05

V

VOL

Logic output level, low

IOL = 1 mA

AVSS

0.2 AVDD

V

VOH

Logic output level, high

IOH = 1 mA

0.8 AVDD

AVDD

V

DIGITAL INPUT/OUTPUTS

VIL

Logic input level, low

DGND

0.3 IOVDD

V

VIH

Logic input level, high

0.7 IOVDD

IOVDD

V

VOL

Logic output level, low

IOL = 1 mA

DGND

0.2 IOVDD

V

VOH

Logic output level, high

IOH = 1 mA

0.8 IOVDD

IOVDD

V

Input current

DGND

≤ VDigital Input ≤ IOVDD

–1

1

µA

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