MAX17843 datasheet(16/131 Pages) MAXIM

16 / 131 page

(VDCIN = +48V, TA = TMIN to TMAX, unless otherwise noted, where TMIN = -40°C and TMAX =+125°C. Typical values are at TA = +25°C.

Operation is with the recommended application circuit.) (Note 5)

PARAMETER

SYMBOL

CONDITIONS

MIN

TYP

MAX

UNITS

MEASUREMENT ACCURACY

Initial Total-Acquisition Error

(HVMUX Inputs, ADC1 or

ADC2)

VCELLn

ERRINIT

Unipolar mode, VCELLn = 3.6V,

DCIN = 43.2V, TA = +25°C,

VSAMPL[2:0] = 011b,

filter coefficient, FC [2:0] = 010b

-2

Initial-Acquisition Error

(HVMUX Inputs, ADC1 or

ADC2) (Note 8)

VCELLnERR

Unipolar mode, 0.2V ≤ VCELLn ≤ 4.8V,

5C < TA < 40°C OVSAMPL[2:0] = 011b,

filter coefficient, FC [2:0] = 010b

-3.5

+3.5

Unipolar mode, 0.2V ≤ VCELLn ≤ 4.8V,

OVSAMPL[2:0] = 011b, filter coefficient,

FC[2:0]= 010b

-6

±0.75

Bipolar mode, -2.3V ≤ VCELLn ≤ 2.3V,

OVSAMPL[2:0] = 011b, filter coefficient,

FC[2:0] = 010b

-6

Initial-Acquisition Error

(HVMUX Inputs, ADC1 or

ADC2) (Note 9)

Unipolar mode, 0.2V ≤ VCELLn ≤ 4.8V,

0C < TA < 40°C, OVSAMPL[2:0] = 011b,

filter coefficient, FC[2:0]= 010b

-3.5

+3.5

Initial-Acquisition Error

(ALTMUX Inputs, ADC1

or ADC2) (Note 8)

VSWnERR

Unipolar mode, 0.2V ≤ VCELLn ≤ 4.8V

5C < TA < 40°C OVSAMPL[2:0] = 011b,

filter coefficient, FC [2:0] = 010b

-3.5

+3.5

Unipolar mode, 0.2V ≤ VCELLn ≤ 4.8V,

OVSAMPL[2:0] = 011b, filter coefficient,

FC[2:0] = 010b

-6

Bipolar mode, -2.3V ≤ VCELLn ≤ 2.3V,

OVSAMPL[2:0] = 011b, filter coefficient,

FC[2:0] = 010b

-6

Total-Acquisition Noise

(Note 9)

VCELLNOISE No oversampling

1.1

mVRMS

Total-Acquisition Error

(VBLKP Input)

VBLKERR

9V ≤ VBLKP ≤ 57.6V VDCIN = 57.6V,

OVSAMPL[2:0 ]= 011b, filter coefficient,

FC[2:0] = 010b

-110

+110

Offset Error for AUXIN

Measurement

VOS_AUX

-3

Gain Error for AUXIN

Measurement

AV_AUX

-0.3

+0.3

Total Error for Die-

Temperature Measurement

(Note 9)

TDIE_ERR

TJ = -40°C to +105°C, no averaging

-5

±3

ºC

Differential Nonlinearity

(Any Conversion)

DNL

±1.0

LSbs

ADC Resolution

bits

MAX17843

12-Channel, High-Voltage Smart Sensor

Data-Acquisition Interface

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Electrical Characteristics (continued)

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