Data Sheet
AD7699
Rev.
| Page 3 of 28
SPECIFICATIONS
VDD = 4.5 V to 5.5 V, VREF = 4.096 to VDD, VIO = 1.8 V to VDD, all specifications TMIN to TMAX, unless otherwise noted.
Table 2.
Parameter
Conditions/Comments
Min
Typ
Max
Unit
RESOLUTION
16
Bits
ANALOG INPUT
Voltage Range
Unipolar mode
0
+VREF
V
Bipolar mode
VREF/2
+VREF/2
V
Absolute Input Voltage
Positive input, unipolar and bipolar modes
0.1
VREF + 0.1
V
Negative or COM input, unipolar mode
0.1
+0.1
V
Negative or COM input, bipolar mode
VREF/2 0.1
VREF/2
VREF/2 + 0.1
V
Analog Input CMRR
fIN = 250 kHz
68
dB
Leakage Current at 25°C Input
Acquisition phase
1
nA
THROUGHPUT
Conversion Rate
0
500
kSPS
0
125
kSPS
Transient Response
Full-scale step, full bandwidth
400
ns
Full-scale step, bandwidth
1600
ns
ACCURACY
No Missing Codes
16
Bits
Integral Linearity Error
1.5
±0.5
+1.5
Differential Linearity Error
1
±0.25
+1.5
LSB
Transition Noise
REF = VDD = 5 V
0.5
LSB
All modes
10
±1
+10
LSB
Gain Error Match
3
±1
+3
LSB
Gain Error Temperature Drift
±0.3
ppm/°C
All modes
10
±1
+10
LSB
Offset Error Match
3
±1
+3
LSB
Offset Error Temperature Drift
±0.3
ppm/°C
Power Supply Sensitivity
VDD = 5 V
± 5%
±1.5
LSB
AC Accuracy
Dynamic Range
93.3
Signal-to-Noise
fIN = 20 kHz, VREF = 5 V
92
92.5
dB
fIN = 20 kHz, VREF = 4.096 V internal REF
89.5
91.5
dB
SINAD
fIN = 20 kHz, VREF = 5 V
90
91.5
dB
fIN = 20 kHz, VREF = 5 V, 60 dB input
33.5
dB
fIN = 20 kHz, VREF = 4.096 V internal REF
89
90.5
dB
Total Harmonic Distortion
fIN = 20 kHz
97
dB
Spurious-Free Dynamic Range
fIN = 20 kHz
112
dB
Channel-to-Channel Crosstalk
fIN = 100 kHz on adjacent channel(s)
125
dB
SAMPLING DYNAMICS
3 dB Input Bandwidth
Full bandwidth
14
MHz
bandwidth
3.6
MHz
Aperture Delay
VDD = 5 V
2.5
ns
B