AMC1202 datasheet(8/32 Pages) TI

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6.9 Electrical Characteristics

minimum and maximum specifications apply from TA = – 55°C to +125°C, VDD1 = 3.0 V to 5.5 V, VDD2 = 3.0 V to 5.5 V, INP

= – 50 mV to + 50 mV, and INN = GND1; typical specifications are at TA = 25°C, VDD1 = 5 V, and VDD2 = 3.3 V (unless

otherwise noted)

PARAMETER

TEST CONDITIONS

MIN

TYP

MAX

UNIT

ANALOG INPUT

VCMov

Common-mode overvoltage

detection level

(VINP + VINN) / 2 to GND1

VDD1 – 2

Hysteresis of common-mode

overvoltage detection level

VOS

Input offset voltage(1) (2)

TA = 25°C, VINP = VINN = GND1

–50

±2.5

µV

TCVOS

Input offset drift(1) (2) (3)

–0.8

±0.15

0.8

µV/°C

CMRR

Common-mode rejection ratio

fIN = 0 Hz, VCM min ≤ VCM ≤ VVCM max

–100

fIN = 10 kHz, VCM min ≤ VCM ≤ VCM max

–98

CIN

Single-ended input capacitance

INN = GND1, fIN = 300 kHz

CIND

Differential input capacitance

fIN = 300 kHz

RIN

Single-ended input resistance

INN = GND1

4.75

kΩ

RIND

Differential input resistance

4.9

IIB

Input bias current

INP = INN = GND1; IIB = (IIBP + IIBN) / 2

–48.5

–36

–28.5

TCIIB

Input bias current drift

±1.5

nA/°C

IIO

Input offset current

IIO = IIBP – IIBN

±10

ANALOG OUTPUT

Nominal gain

Gain error(1)

TA = 25°C

–0.2%

±0.04%

0.2%

TCEG

Gain error drift(1) (4)

–35

±3

35 ppm/°C

Nonlinearity(1)

–0.03%

±0.01%

0.03%

Nonlinearity drift

ppm/°C

THD

Total harmonic distortion

fIN = 10 kHz

–85

Output noise

INP = INN = GND1, fIN = 0 Hz,

BW = 100 kHz brickwall filter

260

µVRMS

SNR

Signal-to-noise ratio

fIN = 1 kHz, BW = 10 kHz

fIN = 10 kHz, BW = 100 kHz

PSRR

Power-supply rejection ratio(2)

PSRR vs VDD1, at DC

–113

PSRR vs VDD1,

100-mV and 10-kHz ripple

–108

PSRR vs VDD2, at DC

–116

PSRR vs VDD2,

100-mV and 10-kHz ripple

–87

VCMout

Common-mode output voltage

1.39

1.44

1.49

VCLIPout

Clipping differential output voltage

VOUT = (VOUTP – VOUTN);

|VIN| = |VINP – VINN| > |VClipping|

–2.52

±2.49

2.52

VFailsafe

Failsafe differential output voltage

VCM ≥ VCMov, or VDD1 missing

–2.63

–2.57

–2.53

Output bandwidth

220

280

kHz

ROUT

Output resistance

On OUTP or OUTN

< 0.2

Output short-circuit current

On OUTP or OUTN, sourcing or sinking,

INN = INP = GND1, outputs shorted to

either GND2 or VDD2

±14

CMTI

Common-mode transient immunity

|GND1 – GND2| = 1 kV

100

150

kV/µs

AMC1202

SBASAB8 – MAY 2021

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