AD7654
Rev. B | Page 3 of 28
SPECIFICATIONS
AVDD = DVDD = 5 V, OVDD = 2.7 V to 5.25 V; all specifications TMIN to TMAX, unless otherwise noted.
Table 2.
Parameter
Conditions
Min
Typ
Max
Unit
RESOLUTION
16
Bits
ANALOG INPUT
Voltage Range
VINx – VINxN
0
2 VREF
V
Common-Mode Input Voltage
VINxN
0.1
+0.5
V
Analog Input CMRR
fIN = 100 kHz
55
dB
Input Current
500 kSPS throughput
45
μA
THROUGHPUT SPEED
Complete Cycle
In normal mode
2
μs
Throughput Rate
In normal mode
0
500
kSPS
Complete Cycle
In impulse mode
2.25
μs
Throughput Rate
In impulse mode
0
444
kSPS
DC ACCURACY
Integral Linearity Error
23.5
+3.5
No Missing Codes
16
Bits
Transition Noise
0.7
LSB
TMIN to TMAX
±0.25
±0.5
% of FSR
±2
ppm/°C
TMIN to TMAX
±0.25
% of FSR
Unipolar Zero Error Drif
t4±0.8
ppm/°C
Power Supply Sensitivity
AVDD = 5 V ±5%
0.8
LSB
AC ACCURACY
Signal-to-Noise
fIN = 20 kHz
88
90
fIN = 100 kHz
89
dB
Spurious-Free Dynamic Range
fIN = 100 kHz
105
dB
Total Harmonic Distortion
fIN = 100 kHz
100
dB
Signal-to-Noise and Distortion
fIN = 20 kHz
87.5
90
dB
fIN = 100 kHz
88.5
dB
fIN = 100 kHz, 60 dB Input
30
dB
Channel-to-Channel Isolation
fIN = 100 kHz
92
dB
3 dB Input Bandwidth
10
MHz
SAMPLING DYNAMICS
Aperture Delay
2
ns
Aperture Delay Matching
30
ps
Aperture Jitter
5
ps rms
Transient Response
Full-scale step
250
ns
REFERENCE
External Reference Voltage Range
2.3
2.5
AVDD/2
V
External Reference Current Drain
500 kSPS throughput
180
μA
DIGITAL INPUTS
Logic Levels
VIL
0.3
+0.8
V
VIH
+2.0
DVDD + 0.3
V
IIL
1
+1
μA
IIH
1
+1
μA