MAX11212B datasheet(2/14 Pages) MAXIM

2 / 14 page

Maxim Integrated

18-Bit, Single-Channel, Ultra-Low Power, Delta-

Sigma ADC with 2-Wire Serial Interface

MAX11212

Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only, and functional

operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to absolute

maximum rating conditions for extended periods may affect device reliability.

Any Pin to GND ....................................................-0.3V to +3.9V

AVDD to GND.......................................................-0.3V to +3.9V

DVDD to GND ......................................................-0.3V to +3.9V

Analog Inputs (AINP, AINN, REFP, REFN)

to GND ............................................. -0.3V to (VAVDD + 0.3V)

Digital Inputs and Digital Outputs

to GND ............................................. -0.3V to (VDVDD + 0.3V)

ESDHB (AVDD, AINP, AINN, REFP, REFN, DVDD, CLK, SCLK,

RDY/DOUT, GND) ........................................... Q2kV (Note 1)

Continuous Power Dissipation (TA = +70NC)

10-Pin FMAX (derate 5.6mW/NC above +70NC) ..........444mW

Operating Temperature Range.......................... -40NC to +85NC

Junction Temperature .....................................................+150NC

Storage Temperature Range............................ -55NC to +150NC

Lead Temperature (soldering, 10s) ................................+300NC

Soldering Temperature (reflow) ......................................+260NC

ELECTRICAL CHARACTERISTICS

(VAVDD = +3.6V, VDVDD = +1.8V, VREFP - VREFN = VAVDD; internal clock, TA = TMIN to TMAX, unless otherwise noted. Typical values

are at TA = +25NC under normal conditions, unless otherwise noted.)

ABSOLUTE MAXIMUM RATINGS

Note 1: Human Body Model to specification MIL-STD-883 Method 3015.7.

PARAMETER

SYMBOL

CONDITIONS

MIN

TYP

MAX

UNITS

ADC PERFORMANCE

Noise-Free Resolution

NFR

(Notes 2, 3)

Bits

Thermal Noise (Notes 2, 3)

MAX11212A

2.1

VRMS

MAX11212B

0.72

Integral Nonlinearity

INL

(Note 4)

-10

+10

ppmFSR

Zero Error

VOFF

After calibration, VREFP - VREFN = 2.5V

-20

+20

ppmFSR

Zero Drift

nV/NC

Full-Scale Error

After calibration, VREFP - VREFN = 2.5V

(Note 5)

-35

+35

ppmFSR

Full-Scale Error Drift

0.05

ppmFSR/NC

Power-Supply Rejection

AVDD DC rejection

DVDD DC rejection

100

ANALOG INPUTS/REFERENCE INPUTS

Common-Mode Rejection

CMR

DC rejection

123

50Hz/60Hz rejection MAX11212A

50Hz/60Hz rejection MAX11212B

144

Normal-Mode 50Hz Rejection

NMR50

MAX11212B (Note 6)

80.5

Normal-Mode 60Hz Rejection

NMR60

MAX11212B (Note 6)

Common-Mode Voltage Range

GND

VAVDD

Absolute Input Voltage

Low input voltage

GND -

30mV

High input voltage

VAVDD +

30mV

DC Input Leakage

Sleep mode (Note 2)

±1

AIN Dynamic Input Current

REF Dynamic Input Current

7.5

AIN Input Capacitance

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