AD7380 datasheet(3/31 Pages) AD

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Data Sheet

AD7389-4

Rev. 0 | Page 3 of 31

SPECIFICATIONS

VCC = 3.0 V to3.6 V, VLOGIC = 1.65 V to 3.6 V, internal reference voltage (VREF) = 2.5 V, fSAMPLE = 2 MSPS, TA = −40°C to +125°C, no

oversampling enabled, unless otherwise noted.

Table 2.

Parameter

Test Conditions/Comments

Min

Typ

Max

Unit

RESOLUTION

Bits

THROUGHPUT

Conversion Rate (fSAMPLE)

MSPS

ANALOG INPUT

Voltage Range

AINx+ − AINx−

−VREF

+VREF

Absolute Input Voltage

AINx+, AINx−

−0.1

VREF + 0.1

Common-Mode Input Range

AINx+, AINx−

0.2

VREF × 0.5

VREF − 0.2

Analog Input Common-Mode Rejection Ratio

(CMRR)

fIN = 500 kHz

−76

DC Leakage Current

0.1

µA

Input Capacitance

Track mode

Hold mode

DC ACCURACY

No Missing Codes

Bits

Differential Nonlinearity (DNL) Error

−1.0

±0.7

+1.0

LSB

Integral Nonlinearity (INL) Error

−2.5

±0.1

+2.5

LSB

Gain Error

−0.02

±0.006

+0.02

% FS

Gain Error Temperature Drift

−1

±0.1

ppm/°C

Gain Error Match

−0.0125

±0.004

+0.0125

% FS

Zero Error

−0.25

±0.1

+0.25

Zero Error Temperature Drift

−1

±0.2

V/°C

Zero Error Match

−0.125

±0.1

+0.125

AC ACCURACY

fIN = 1 kHz

Dynamic Range

91.3

Oversampled Dynamic Range

OSR = 4×, RES = 1 (decimal)

97.4

Signal-to-Noise Ratio (SNR)

90.5

Rolling average OSR = 8×, RES = 1

(decimal)

97.9

fIN = 100 kHz

88.6

Spurious-Free Dynamic Range (SFDR)

−105

Total Harmonic Distortion (THD)

−106

fIN = 100 kHz

−105

Signal-to-Noise-and-Distortion (SINAD) Ratio

88.5

Channel to Channel Isolation

−126

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