Data Sheet

AD7983

Rev. B | Page 3 of 24

SPECIFICATIONS

Table 2.

Parameter

Conditions

Min

Typ

Max

Unit

RESOLUTION

16

Bits

ANALOG INPUT

Voltage Range

IN+ − IN−

0

V

Absolute Input Voltage

IN+

−0.1

V

IN−

−0.1

+0.1

V

Analog Input CMRR

60

Leakage Current @ 25°C

Acquisition phase

1

nA

Input Impedance

See the Analog Inputs section

ACCURACY

No Missing Codes

16

Bits

Differential Linearity Error

−0.9

±0.4

+0.9

Integral Linearity Error

−1.0

±0.6

+1.0

Transition Noise

0.52

±2

Gain Error Temperature Drift

±0.41

ppm/°C

−0.9

±0.44

+0.9

mV

Zero Temperature Drift

0.54

ppm/°C

Power Supply Sensitivity

VDD = 2.5 V ± 5%

±0.1

THROUGHPUT

Conversion Rate

0

1.33

MSPS

Transient Response

Full-scale step

290

ns

AC ACCURACY

Dynamic Range

93

Signal-to-Noise Ratio, SNR

90.5

92

Spurious-Free Dynamic Range, SFDR

114

Total Harmonic Distortion, THD

−115

Signal-to-(Noise + Distortion), SINAD

91.6

1

All specifications in dB are referred to a full-scale input FSR. Tested with an input signal at 0.5 dB below full scale, unless otherwise specified.

2

LSB means least significant bit. With the 5 V input range, 1 LSB is 76.3 µV.

3

See the Terminology section. These specifications include full temperature range variation, but not the error contribution from the external reference.