Datasheet

AD7723
Rev. C | Page 3 of 32
SPECIFICATIONS
1
AV
DD
= DV
DD
= 5 V ± 5%; AGND = AGND1 = AGND2 = DGND = 0 V; f
CLKIN
= 19.2 MHz; REF2 = 2.5 V; T
A
= T
MIN
to T
MAX
, unless
otherwise noted.
Table 1.
B Version
Parameter Test Conditions/Comments Min Typ Max Unit
DYNAMIC SPECIFICATIONS
2, 3
HALF_PWR = 0 to 1
f
CLKIN
= 10 MHz when HALF_PWR = 1
Decimate by 32
Bipolar Mode
Signal to Noise
Full Power 2.5 V reference 87 90 dB
3 V reference 88.5 91 dB
Half Power 86.5 89 dB
Total Harmonic Distortion
4
−96 −90 dB
Spurious-Free Dynamic Range
4
2.5 V reference −92 dB
3 V reference −90 dB
Unipolar Mode
Signal to Noise 87 dB
Total Harmonic Distortion
4
−89 dB
Spurious-Free Dynamic Range
4
−90 dB
Band-Pass Filter Mode
Bipolar Mode
Signal to Noise 76 79 dB
Decimate by 16
Bipolar Mode
Signal to Noise Measurement bandwidth = 0.383 × F
O
2.5 V reference 82 86 dB
3 V reference 83 87 dB
Signal to Noise Measurement bandwidth = 0.5 × F
O
78 81.5 dB
Total Harmonic Distortion
4
2.5 V reference −88 dB
Spurious-Free Dynamic Range
4
3 V reference −86 dB
2.5 V reference −90 dB
3 V reference −88 dB
Unipolar Mode
Signal to Noise Measurement bandwidth = 0.383 × F
O
84 dB
Signal to Noise Measurement bandwidth = 0.5 × F
O
81 dB
Total Harmonic Distortion
4
−89 dB
DIGITAL FILTER RESPONSE
Low-Pass Decimate by 32
0 kHz to f
CLKIN
/83.5 ±0.001 dB
f
CLKIN
/66.9 −3 dB
f
CLKIN
/64 −6 dB
f
CLKIN
/51.9 to f
CLKIN
/2 −90 dB
Group Delay 1293/2 f
CLKIN
Settling Time 1293/f
CLKIN