Changes to Ordering Guide .......................................................... 24
12/06—Revision 0: Initial Version
Rev. B | Page 2 of 24
Data Sheet
SPECIFICATIONS
VDD = 4.5 V to 5.5 V, VIO = 2.3 V to VDD, V
REF
= VDD, all specifications T
MIN
to T
MAX
, unless otherwise noted.
Table 2.
Parameter
RESOLUTION
ANALOG INPUT
Voltage Range
Absolute Input Voltage
Common-Mode Input Range
Analog Input CMRR
Leakage Current at 25°C
Input Impedance
1
THROUGHPUT
Conversion Rate
Transient Response
ACCURACY
No Missing Codes
Integral Linearity Error
Differential Linearity Error
Transition Noise
Gain Error
3
Gain Error Temperature Drift
Zero Error
3
Zero Temperature Drift
Power Supply Sensitivity
AC ACCURACY
Dynamic Range
Signal-to-Noise
4
AD7693
Conditions/Comments
Min
16
−V
REF
−0.1
V
REF
/2 – 0.1
Typ
Max
Unit
Bits
V
V
V
dB
nA
IN+ − (IN−)
IN+, IN−
IN+, IN−
f
IN
= 250 kHz
Acquisition phase
V
REF
/2
65
1
+V
REF
V
REF
+ 0.1
V
REF
/2 + 0.1
0
Full-scale step
16
−0.5
−0.5
REF = VDD = 5 V
−20
−5
VDD = 5 V
±
5%
96
95.5
500
400
kSPS
ns
Bits
LSB
2
LSB
LSB
LSB
ppm/°C
LSB
ppm/°C
ppm
dB
5
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
±0.25
±0.25
0.35
±0.5
±0.3
±0.5
±0.3
±1
96.5
96
95.5
93
93
96
95.5
90
−120
−113
−92
120
114
93.5
115
+0.5
+0.5
+20
+5
Signal-to-(Noise + Distortion)
Total Harmonic Distortion
Spurious-Free Dynamic Range
f
IN
= 1 kHz
f
IN
= 10 kHz
f
IN
= 100 kHz
f
IN
= 1 kHz, V
REF
= 2.5 V
f
IN
= 1 kHz
f
IN
= 10 kHz
f
IN
= 100 kHz
f
IN
= 1 kHz
f
IN
= 10 kHz
f
IN
= 100 kHz
f
IN
= 1 kHz
f
IN
= 10 kHz
f
IN
= 100 kHz
95.5
−108
Intermodulation Distortion
6
1
2
See the Analog Inputs section.
LSB means least significant bit. With the ±5 V input range, one LSB is 152.6 µV.
3
See the Terminology section. These specifications include full temperature range variation but not the error contribution from the external reference.
4
With V
REF
= 5 V, unless otherwise noted.
5
All specifications expressed in decibels are referred to a full-scale input FSR and tested with an input signal at 0.5 dB below full scale, unless otherwise specified.
6
f
IN1
= 21.4 kHz and f
IN2
= 18.9 kHz, with each tone at −7 dB below full scale.
Rev. B | Page 3 of 24
AD7693
VDD = 4.5 V to 5.5 V, VIO = 2.3 V to VDD, V
REF
= VDD, all specifications T
MIN
to T
MAX
, unless otherwise noted.
Table 3.
Parameter
REFERENCE
Voltage Range
Load Current
SAMPLING DYNAMICS
−3 dB Input Bandwidth
Aperture Delay
DIGITAL INPUTS
Logic Levels
V
IL
V
IH
I
IL
I
IH
DIGITAL OUTPUTS
Data Format
Pipeline Delay
1
V
OL
V
OH
POWER SUPPLIES
VDD
VIO
VIO Range
Standby Current
2, 3
Power Dissipation
Conditions/Comments
Min
0.5
500 kSPS, REF = 5 V
100
9
2.5
Typ
Max
VDD + 0.3
Data Sheet
Unit
V
µA
MHz
ns
VDD = 5V
−0.3
0.7 × VIO
−1
−1
Serial 16 bits, twos
complement
I
SINK
= +500 µA
I
SOURCE
= −500 µA
Specified performance
Specified performance
VDD and VIO = 5 V, 25°C
100 SPS throughput
100 kSPS throughput
500 kSPS throughput
+0.3 × VIO
VIO + 0.3
+1
+1
V
V
µA
µA
0.4
VIO − 0.3
4. 5
2.3
1.8
1
5
4
18
40
−40
5.5
VDD + 0.3
VDD + 0.3
50
V
V
V
V
V
nA
µW
mW
mW
nJ
°C
21.5
Energy per Conversion
TEMPERATURE RANGE
4
Specified Performance
1
2
T
MIN
to T
MAX
+85
Conversion results available immediately after completed conversion.
With all digital inputs forced to VIO or GND as required.
3
During acquisition phase.
4
Contact an Analog Devices sales representative for the extended temperature range.
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