7.9 Electrical Characteristics

minimum and maximum specifications of the AMC1311 apply from TA = –40°C to +125°C, VDD1 = 4.5 V to 5.5 V, VDD2 =

3.0 V to 5.5 V, VIN = –0.1 V to 2 V, and SHTDN = GND1 = 0 V; minimum and maximum specifications of the AMC1311B

apply from TA = –55°C to +125°C, VDD1 = 3.0 V to 5.5 V, VDD2 = 3.0 V to 5.5 V, VIN = –0.1 V to 2 V, and SHTDN = GND1 =

0 V (unless otherwise noted); typical specifications are at TA = 25°C, VDD1 = 5 V, and VDD2 = 3.3 V

PARAMETER

TEST CONDITIONS

MIN

TYP

MAX

UNIT

ANALOG INPUT

VOS

Input offset voltage(1) (2)

TA = 25°C, 4.5 V ≤ VDD1 ≤ 5.5 V,

AMC1311

–9.9

±0.4

9.9

mV

TA = 25°C, AMC1311B(3)

–1.5

±0.4

1.5

TCVOS

Input offset thermal drift(1) (2) (5)

AMC1311

±20

µV/°C

AMC1311B

–10

±3

10

RIN

Input resistance

TA = 25℃

1

GΩ

IIB

Input bias current

IN = GND1, TA = 25℃

–15

3.5

15

nA

CIN

Input capacitance

fIN = 275 kHz

7

pF

ANALOG OUTPUT

Nominal gain

1

V/V

EG

Gain error(1)

TA = 25℃, AMC1311

–1%

0.4%

1%

TA = 25℃, AMC1311B

–0.2%

±0.05%

0.2%

TCEG

Gain error drift(1) (6)

AMC1311

±30

ppm/°C

AMC1311B

–40

±5

40

Nonlineartity(1)

–0.04%

±0.01%

0.04%

THD

Total harmonic distortion(4)

VIN = 2 VPP, VIN > 0 V,

fIN = 10 kHz, BW = 10 kHz

–87

dB

SNR

Signal-to-noise ratio

VIN = 2 VPP, fIN = 1 kHz, BW = 10 kHz

79

82.6

dB

VIN = 2 VPP, fIN = 10 kHz, BW = 100 kHz

70.9

Output noise

VIN = GND1, BW = 100 kHz

220

µVrms

PSRR

Power-supply rejection ratio(2)

vs VDD1, at DC

–80

dB

vs VDD2, at DC

–85

vs VDD1, 10 kHz / 100-mV ripple

–65

vs VDD2, 10 kHz / 100-mV ripple

–70

VCMout

Output common-mode voltage

1.39

1.44

1.49

V

VCLIPout

Clipping differential output voltage

VOUT = (VOUTP – VOUTN);

VIN > VClipping

2.49

V

VFAILSAFE Failsafe differential output voltage

SHTDN = high, or VDD1 undervoltage,

or VDD1 missing

–2.6

–2.5

V

BW

Output bandwidth

AMC1311

100

220

kHz

AMC1311B

220

275

ROUT

Output resistance

On OUTP or OUTN

<0.2

Ω

Output short-circuit current

On OUTP or OUTN, sourcing or sinking,

IN = GND1, outputs shorted to

either GND or VDD2

14

mA

CMTI

Common-mode transient immunity

AMC1311

15

30

kV/µs

AMC1311B

100

150

AMC1311

SBAS786C – DECEMBER 2017 – REVISED JUNE 2022

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