6.9 Electrical Characteristics

minimum and maximum specifications apply from TA = –40°C to +125°C, VDD1 = 3.0 V to 5.5 V, VDD2 = 3.0 V to 5.5 V, IN =

–0.25 V to +5 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

Offset voltage(2)

TA = 25°C, IN = GND1,

4.5 V ≤ VDD1 ≤ 5.5 V(1)

–1.5

±0.3

1.5

mV

TA = 25°C, IN = GND1,

3.0 V ≤ VDD1 ≤ 5.5 V(3)

–2.5

–0.8

2.5

ΔVOS

Offset voltage long-term stability

10 years at TA = 55℃

0(7)

mV

TCVOS

Offset voltage thermal drift(5)

IN = GND1

–15

±3

15

µV/°C

ΔTCVOS

Offset voltage thermal drift

long-term stability

10 years at TA = 55℃,

IN = GND1

0(7)

mV/°C

RIN

Input resistance

1

1.25

1.5

MΩ

ΔRIN

Input resistance long-term stability

10 years at TA = 55℃

0(7)

ppm

TCRIN

Input resistance thermal drift

–40

℃ ≤ TA ≤ 85℃

5

ppm/°C

CIN

Input capacitance

fIN = 275 kHz

4

pF

ANALOG OUTPUT

Nominal gain

0.40

V/V

EG

Gain error(1)

TA = 25℃

–0.2%

±0.05%

0.2%

ΔEG

Gain error long-term stability

10 years at TA = 55℃

0(7)

TCEG

Gain error thermal drift(1) (6)

–35

±10

35 ppm/°C

ΔTCEG

Gain error thermal drift

long-term stability

10 years at TA = 55℃

0(7)

ppm/°C

Nonlineartity(1)

–0.02%

±0.003%

0.02%

Nonlinearity thermal drift

0.2

ppm/°C

THD

Total harmonic distortion(4)

VIN = 5 VPP, fIN = 10 kHz,

BW = 100 kHz

–82

dB

SNR

Signal-to-noise ratio

VIN = 5 VPP, fIN = 1 kHz,

BW = 10 kHz

75

79

dB

VIN = 5 VPP, fIN = 10 kHz,

BW = 100 kHz

69

Output noise

IN = GND1, BW = 100 kHz

250

µVrms

PSRR

Power-supply rejection ratio(2)

PSRR vs VDD1, DC

–67

dB

PSRR vs VDD2, DC

–80

PSRR vs VDD1 with 10-kHz,

100-mV ripple

–65

PSRR vs VDD2 with 10-kHz,

100-mV ripple

–64

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

VFail-safe

Fail-safe differential output voltage

VDD1 undervoltage or VDD1 missing

–2.57

–2.5

V

BW

Output bandwidth

275

300

kHz

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

100

150

kV/µs

POWER SUPPLY

AMC1351

SBASAA8 – DECEMBER 2021

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