Datasheet

AD7983
Rev. A | Page 3 of 24
SPECIFICATIONS
VDD = 2.5 V, VIO = 2.3 V to 5.5 V, REF = 5 V, T
A
= –40°C to +85°C, unless otherwise noted.
Table 2.
Parameter Conditions Min Typ Max Unit
RESOLUTION 16 Bits
ANALOG INPUT
Voltage Range IN+ − IN− 0 V
REF
V
Absolute Input Voltage IN+ −0.1 V
REF
+ 0.1 V
IN− −0.1 +0.1 V
Analog Input CMRR f
IN
= 100 kHz 60 dB
1
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 LSB
2
Integral Linearity Error −1.0 ±0.6 +1.0 LSB
2
Transition Noise 0.52 LSB
2
Gain Error, T
MIN
to T
MAX
3
±2 LSB
2
Gain Error Temperature Drift ±0.41 ppm/°C
Zero Error, T
MIN
to T
MAX
3
−0.9 ±0.44 +0.9 mV
Zero Temperature Drift 0.54 ppm/°C
Power Supply Sensitivity
VDD = 2.5 V ± 5%
±0.1 LSB
2
THROUGHPUT
Conversion Rate 0 1.33 MSPS
Transient Response Full-scale step 290 ns
AC ACCURACY
Dynamic Range 93 dB
1
Signal-to-Noise Ratio, SNR f
IN
= 1 kHz 90.5 92 dB
1
Spurious-Free Dynamic Range, SFDR f
IN
= 10 kHz 114 dB
1
Total Harmonic Distortion, THD f
IN
= 10 kHz −115 dB
1
Signal-to-(Noise + Distortion), SINAD f
IN
= 10 kHz 91.6 dB
1
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.