AD7380 datasheet(3/31 Pages) AD

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Data Sheet

AD7380/AD7381

Rev. 0 | Page 3 of 31

SPECIFICATIONS

VCC = 3.0 V to 3.6 V, VLOGIC = 1.65 V to 3.6 V, reference voltage (VREF) = 2.5 V internal, sampling frequency (fSAMPLE) = 4 MSPS, and

TA = −40°C to +125°C, no oversampling enabled, unless otherwise noted.

Table 1. AD7380

Parameter

Test Conditions/Comments

Min

Typ

Max

Unit

RESOLUTION

Bits

THROUGHPUT

Conversion Rate

MSPS

DC ACCURACY

No Missing Codes

Bits

Differential Nonlinearity Error

−1.0

±0.7

+1.0

LSB

Integral Nonlinearity Error

−2.0

±0.75

+2.0

LSB

Gain Error

−0.015

±0.002

+0.015

% FS1

Gain Error Temperature Drift

−11

±1

+11

ppm/°C

Gain Error Match

−0.01

±0.002

+0.01

% FS

Offset Error

At 25°C, VCC = 3.3 V

−0.2

±0.01

+0.2

−0.5

+0.5

Offset Temperature Drift

−2

±0.5

µV/°C

Offset Error Match

−0.5

±0.1

+0.5

AC ACCURACY

Input frequency (fIN) = 1 kHz

Dynamic Range

VREF = 3.3 V external

93.3

91.8

Oversampled Dynamic Range

OSR = 4

95.2

Signal-to-Noise Ratio (SNR)

VREF = 3.3 V external

92.5

88.5

91.1

OSR = 8, RES = 1

OSR = 16, RES = 1

101

fIN = 100 kHz

Spurious-Free Dynamic Range (SFDR)

−110

Total Harmonic Distortion (THD)

−113

fIN = 100 kHz

−104

Signal-to-(Noise + Distortion) (SINAD)

VREF = 3.3 V external

89.5

92.3

Channel to Channel Isolation

−110

POWER SUPPLIES

VCC Current (IVCC)

Normal Mode (Operational)

21.5

Power Dissipation

Total Power (PTOTAL)

107

VCC Power (PVCC)

Normal Mode (Operational)

These specifications include full temperature range variation, but they do not include the error contribution from the external reference.

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