REV. A
–2–
AD7677–SPECIFICATIONS (–40 C to +85 C, AVDD = DVDD= 5 V, OVDD = 2.7 V to 5.25 V, unless otherwise stated.)
Parameter
Conditions
Min
Typ
Max
Unit
RESOLUTION
16
Bits
ANALOG INPUT
Voltage Range
VIN+ – VIN–
–VREF
+VREF
V
Operating Input Voltage
VIN+, VIN– to AGND
–0.1
+3
V
Analog Input CMRR
fIN = 10 kHz
85
dB
Input Current
1 MSPS Throughput
11
A
Input Impedance
See Analog Input Section
THROUGHPUT SPEED
Complete Cycle
In Warp Mode
1
s
Throughput Rate
In Warp Mode
0.001
1
MSPS
Time Between Conversions
In Warp Mode
1
ms
Complete Cycle
In Normal Mode
1.25
s
Throughput Rate
In Normal Mode
0
800
kSPS
Complete Cycle
In Impulse Mode
1.5
s
Throughput Rate
In Impulse Mode
0
666
kSPS
DC ACCURACY
Integral Linearity Error
–1
+1
LSB
1, 2
Differential Linearity Error
–1
+1
LSB
2
No Missing Codes
16
Bits
Transition Noise
0.35
LSB
+Full-Scale Error
3
In Warp Mode
–25
+25
LSB
–Full Scale Error
3
In Warp Mode
–20
+20
LSB
Zero Error
3
In Warp Mode
–15
+15
LSB
+Full-Scale Error
3
In Impulse or Normal Mode
–40
+40
LSB
–Full Scale Error
3
In Impulse or Normal Mode
–20
+20
LSB
Zero Error
3
In Impulse or Normal Mode
–23
+23
LSB
Power Supply Sensitivity
AVDD = 5 V
± 5%
±1.4
LSB
AC ACCURACY
Signal-to-Noise
fIN = 20 kHz
92
94
dB
2, 4
fIN = 45 kHz
94
dB
Spurious Free Dynamic Range
fIN = 20 kHz
104.5
110
dB
2
fIN = 45 kHz
110
dB
Total Harmonic Distortion
fIN = 20 kHz
–110
–103.5
dB
2
fIN = 45 kHz
–110
dB
Signal-to-(Noise+Distortion)
fIN = 20 kHz
92
94
dB
2
fIN = 45 kHz
94
fIN = 45 kHz, –60 dB Input
34
dB
–3 dB Input Bandwidth
15.8
MHz
SAMPLING DYNAMICS
Aperture Delay
2ns
Aperture Jitter
5
ps rms
Transient Response
Full-Scale Step
250
ns
REFERENCE
External Reference Voltage Range
2.3
2.5
AVDD – 1.85
V
External Reference Current Drain
1 MSPS Throughput
37
A
DIGITAL INPUTS
Logic Levels
VIL
–0.3
+0.8
V
VIH
2.0
DVDD + 0.3
V
IIL
–1
+1
A
IIH
–1
+1
A
DIGITAL OUTPUTS
Data Format
Parallel or Serial 16-Bit Conversion
Pipeline Delay
Results Available Immediately after
Completed Conversion
VOL
ISINK = 1.6 mA
0.4
V
VOH
ISOURCE = –100
A
OVDD – 0.6
V