Data Sheet

AD7383-4/AD7384-4

SPECIFICATIONS

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Rev. 0 | 3 of 33

VCC = 3.0 V to 3.6 V, VLOGIC = 1.65 V to 3.6 V, reference voltage (VREF) external = 2.5 V to 3.3 V, sampling frequency (fSAMPLE) = 4 MSPS, TA =

−40°C to +125°C, and no oversampling enabled, unless otherwise noted. SDOA, SDOB, SDOC, and SDOD are connected with a 100 Ω series

resistor.

Table 2. AD7383-4

Parameter

Test Conditions/Comments

Min

Typ

Max

Unit

RESOLUTION

16

Bits

THROUGHPUT

Conversion Rate

4

MSPS

DC ACCURACY

No Missing Codes

16

Bits

Differential Nonlinearity (DNL)

Error

−0.9

±0.6

+0.9

LSB

Integral Nonlinearity (INL) Error

External reference

−3.8

±1.4

+3.8

LSB

Internal reference

±1.7

Gain Error

External reference = 3.3 V

−0.07

±0.02

+0.07

% FS1

Internal reference = 2.5 V

±0.02

Gain Error Drift

−2

±0.3

+2

ppm/°C

Gain Error Match

±0.03

+0.08

% FS1

Zero Error

External reference

−1.1

±0.05

+1.1

mV

Internal reference

±0.15

Zero Error Temperature Drift

−5

±1

+5

μV/°C

Zero Error Match

±0.2

+1.2

mV

AC ACCURACY

Input frequency (fIN) = 1 kHz

Dynamic Range

VREF = 3.3 V (external)

87

dB

Internal reference = 2.5 V

86

dB

Oversampled Dynamic Range

OSR = 4×, RES = 1 (decimal)

92.5

dB

Signal-to-Noise Ratio (SNR)

VREF = 3.3 V (external), VCC = 3.3 V

82.9

86.7

dB

Internal reference = 2.5 V

85.1

dB

Rolling average OSR = 8×, RES = 1 (decimal),

external reference

94.7

dB

fIN = 100 kHz,VREF = 3.3 V (external)

85.5

dB

Spurious-Free Dynamic Range

(SFDR)

100

dB

Total Harmonic Distortion (THD)

VREF = 3.3 V (external)

−98

dB

fIN = 100 kHz

−90

dB

Signal-to-Noise and Distortion

(SINAD)

VREF = 3.3 V (external)

83.3

86.4

dB

Internal reference

84.6

dB

Channel to Channel Isolation

−110

dB

POWER SUPPLIES

VCC Current (IVCC)

Normal mode (operational)

39.3

43

mA

Power Dissipation

Total Power (PTOTAL)

169

186.6

mW

VCC Power (PVCC)

Normal mode (operational)

141.5

154.8

mW

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