
AD7683
VDD = 5 V; V
REF
= VDD; T
A
= –40°C to +85°C, unless otherwise noted.
Table 3.
Parameter
Conditions
ACCURACY
No Missing Codes
Integral Linearity Error
Transition Noise
Gain Error
1
, T
MIN
to T
MAX
Gain Error Temperature Drift
Offset Error
1
, T
MIN
to T
MAX
Offset Temperature Drift
Power Supply Sensitivity
VDD = 5 V
±
5%
AC ACCURACY
Signal-to-Noise
f
IN
= 1 kHz
Spurious-Free Dynamic Range
f
IN
= 1 kHz
Total Harmonic Distortion
f
IN
= 1 kHz
Signal-to-(Noise + Distortion)
f
IN
= 1 kHz
Effective Number of Bits
f
IN
= 1 kHz
Rev. 0 | Page 4 of 16
A Grade
Typ
±3
0.5
±2
±0.3
±0.7
±0.3
±0.05
90
100
100
90
14.7
B Grade
Typ
±1
0.5
±2
±0.3
±0.4
±0.3
±0.05
91
108
106
91
14.8
Unit
Bits
LSB
LSB
LSB
ppm/°C
mV
ppm/°C
LSB
dB
2
dB
dB
dB
Bits
Min
15
6
Max
+6
±24
±1.6
Min
16
3
88
88
Max
+3
±15
±1.6
1
See the
2
All specifications in dB are referred to a full-scale input, FS. Tested with an input signal at 0.5 dB below full scale, unless otherwise specified.
section. These specifications include full temperature range variation, but do not include the error contribution from the external reference.
Terminology
VDD = 2.7 V; V
REF
= 2.5V; T
A
= –40°C to +85°C, unless otherwise noted.
Table 4.
Parameter
Conditions
ACCURACY
No Missing Codes
Integral Linearity Error
Transition Noise
Gain Error
1
, T
MIN
to T
MAX
Gain Error Temperature Drift
Offset Error
1
, T
MIN
to T
MAX
Offset Temperature Drift
Power Supply Sensitivity
VDD = 2.7 V
±
5%
AC ACCURACY
Signal-to-Noise
f
IN
= 1 kHz
Spurious-Free Dynamic Range
f
IN
= 1 kHz
Total Harmonic Distortion
f
IN
= 1 kHz
Signal-to-(Noise + Distortion)
f
IN
= 1 kHz
Effective Number of Bits
f
IN
= 1 kHz
A Grade
Typ
±3
0.85
±2
±0.3
±0.7
±0.3
±0.05
85
96
94
85
13.8
B Grade
Typ
±1
0.85
±2
±0.3
±0.7
±0.3
±0.05
86
100
98
86
14
Unit
Bits
LSB
LSB
LSB
ppm/°C
mV
ppm/°C
LSB
dB
2
dB
dB
dB
Bits
Min
15
6
Max
+6
±30
±3.5
Min
16
3
Max
+3
±15
±3.5
1
See the
2
All specifications in dB are referred to a full-scale input FS. Tested with an input signal at 0.5 dB below full scale, unless otherwise specified.
section. These specifications do include full temperature range variation, but do not include the error contribution from the external reference.
Terminology