6.9 Electrical Characteristics

minimum and maximum specifications apply from TA = –40°C to +125°C, VDD = 3.0 V to 5.5 V, INP = –50 mV to +50 mV,

INN = HGND = 0 V, and the external components listed in the Typical Application section; typical specifications are at TA =

25°C, and VDD = 3.3 V (unless otherwise noted)

PARAMETER

TEST CONDITIONS

MIN

TYP

MAX

UNIT

ANALOG INPUT

RIN

Single-ended input resistance

INN = HGND

4.75

kΩ

RIND

Differential input resistance

4.9

IIB

Input bias current

INP = INN = HGND; IIB = (IIBP +

IIBN) / 2

–48.5

–36

–28.5

µA

IIO

Input offset current

IIO = IIBP – IIBN; INP = INN = HGND

±10

nA

CIN

Single-ended input capacitance

INN = HGND, fIN = 275 kHz

4

pF

CIND

Differential input capacitance

fIN = 275 kHz

2

pF

ANALOG OUTPUT

Nominal gain

41

V/V

VCMout

Common-mode output voltage

1.39

1.44

1.49

V

VCLIPout

Clipping differential output voltage

VOUT = (VOUTP – VOUTN);

|VIN| = |VINP – VINN| > VClipping

–2.52

±2.49

2.52

V

VFailsafe

Failsafe differential output voltage

VOUT = (VOUTP – VOUTN);

VDCDC_OUT ≤ VDCDCUV, or

VHLDO_OUT ≤ VHLDOUV

–2.63

–2.57

–2.53

V

BW

Output bandwidth

290

340

kHz

ROUT

Output resistance

On OUTP or OUTN

0.2

Ω

Output short-circuit current

On OUTP or OUTN, sourcing or

sinking, INP = INN = HGND, outputs

shorted to either GND or VDD

14

mA

CMTI

Common-mode transient immunity

|HGND – GND| = 2 kV

95

155

kV/µs

ACCURACY

VOS

Input offset voltage(1) (2)

TA = 25°C, INP = INN = HGND

–50

±15

50

µV

TCVOS

Input offset drift (1) (2) (4)

–0.5

±0.1

0.5

uV/°C

EG

Gain error(1)

TA = 25°C

–0.2%

±0.04%

0.2%

TCEG

Gain error drift(1) (5)

–35

±10

35

ppm/°C

Nonlinearity (1)

–0.03%

±0.002%

0.03%

SNR

Signal-to-noise ratio

VIN = 0.1 VPP, fIN = 1 kHz, BW = 10

kHz, 10 kHz filter

77

81

dB

VIN = 0.1 VPP, fIN = 10 kHz,

BW = 100 kHz, 1 MHz filter

70

THD

Total harmonic distortion(3)

VIN = 0.1 Vpp, fIN = 10 kHz,

BW = 100 kHz

–85

dB

Output noise

INP = INN = HGND, fIN = 0 Hz,

BW = 100 kHz

340

µVRMS

CMRR

Common-mode rejection ratio

fIN = 0 Hz, VCM min ≤ VCM ≤VCM max

–101

dB

fIN = 10 kHz, VCM min ≤ VCM ≤VCM max

–101

PSRR

Power-supply rejection ratio

VDD from 3.0 V to 5.5 V, at dc, input

referred

–120

dB

INP = INN = HGND, VDD from 3.0

V to 5.5 V, 10 kHz / 100 mV ripple,

input referred

–108

AMC3302

SBASA11B – AUGUST 2020 – REVISED JULY 2021

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