AMC131M01DFMR datasheet(8/81 Pages) TI

8 / 81 page

6.8 Electrical Characteristics

minimum and maximum specifications apply from TA = –40°C to +125°C and DVDD = 3.0 V to 5.5V; typical specifications

are at TA = 25°C, and DVDD = 3.3 V; all specifications are at fCLKIN = 8.192 MHz, data rate = 4 kSPS, high-resolution mode,

global-chop mode disabled, and gain = 1 (unless otherwise noted)

PARAMETER

TEST CONDITIONS

MIN

TYP

MAX

UNIT

ANALOG INPUTS

IIB

Input bias current

AINxP = AINxN = HGND;

IIB = (IIBP + IIBN) / 2, Gain = 1, 2, or 4

0.65

0.9

μA

AINxP = AINxN = HGND;

IIB = (IIBP + IIBN) / 2, Gain = 8 to 128

–1.0

–0.65

TCIIB

Input bias current drift

–1

±0.35

1 (2)

nA/°C

IIO

Input offset current

IIO = IIBP – IIBN

±15

RIN

Single-ended input

impedance

AINxN = HGND, gain = 1, 2, or 4

250

kΩ

AINxN = HGND, gain = 8 to 128

0.5

MΩ

ZIND

Differential input impedance

(AINxN + AINxP) / 2 = HGND,

Gain = 1, 2, or 4

275

kΩ

(AINxN + AINxP) / 2 = HGND,

Gain = 8 to 128

MΩ

ADC CHARACTERISTICS

Resolution

Bits

Gain settings

1, 2, 4, 8, 16, 32, 64, 128

fDATA

Data rate

High-resolution mode, fCLKIN = 8.192 MHz,

NDIV = 2

250

64k

SPS

Low-power mode, fCLKIN = 4.096 MHz,

NDIV = 2

125

32k

SPI start-up time

Measured from supplies at 90% to SPI

interface ready to accept data

0.3

Converter start-up time

Measured from DCDC enable bit set to first

DRDY falling edge with data settled to 0.1%

(CLKIN running)

1.0

ADC PERFORMANCE

INL

Integral nonlinearity

End-point fit

ppm of

FSR

Offset error (input referred)

External short, TA = 25°C

–100

±100

330

µV

Global-chop mode,

default global-chop delay, external short,

TA = 25°C

–100

100

TCEO

Offset error drift vs

temperature

External short

–0.5

±0.1

0.5 (3)

µV/°C

Global-chop mode, external short

–0.3

±0.1

0.3 (3)

Gain error

TA = 25°C, end-point fit

–0.2

±0.025

0.2

TCEG

Gain error drift vs

temperature

Including internal reference error

25 (3) ppm/°C

CMRR

Common-mode rejection

ratio

fIN = 0 Hz, VCM min ≤ VIN ≤ VCM max

110

fIN = 50 Hz or 60 Hz,

VCM min ≤ VIN ≤ VCM max, VAINP = VAINN

110

Input-referred noise

µVRMS

Dynamic range

Gain = 1

Gain = 32

All other gain settings

See Table 7-2

AMC131M01

SBASA57 – SEPTEMBER 2023

www.ti.com

Submit Document Feedback

Product Folder Links: AMC131M01

AMC131M01DFMR датащи(PDF) 8 Page - Texas Instruments

AMC131M01DFMR датащи(HTML) 8 Page - Texas Instruments

Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81

датащи скачать

ссылки URL