AD7609
Data Sheet
Rev. A | Page 4 of 36
SPECIFICATIONS
VREF = 2.5 V external/internal, AVCC = 4.75 V to 5.25 V, VDRIVE = 2.3 V to 5.25 V; fSAMPLE = 200 kSPS, TA = TMIN to TMAX, unless otherwise
Table 2.
Parameter
Test Conditions/Comments
Min
Typ
Max
Unit
DYNAMIC PERFORMANCE
fIN = 1 kHz sine wave unless otherwise noted
Oversampling by 16; ±10 V range; fIN = 160 Hz
98
101
dB
Oversampling by 16; ±5 V range; fIN = 160 Hz
100
dB
No oversampling; ±10 V range
90
91
dB
No oversampling; ±5 V range
89.5
90.5
dB
Signal-to-(Noise + Distortion) (SINA
D)2No oversampling; ±10 V range
89.5
91
dB
No oversampling; ±5 V range
89
90
dB
Dynamic Range
No oversampling; ±10 V range
91.5
dB
No oversampling; ±5 V range
90.5
dB
Total Harmonic Distortion (TH
D)2, 3No oversampling; ±10 V range
107
97
dB
No oversampling; ±5 V range
110
96
dB
Peak Harmonic or Spurious Noise (SFD
R)2108
dB
Intermodulation Distortion (IMD
)2fa = 1 kHz, fb = 1.1 kHz
Second-Order Terms
110
dB
Third-Order Terms
106
dB
Channel-to-Channel Isolati
on2fIN on unselected channels up to 160 kHz
95
dB
ANALOG INPUT FILTER
Full Power Bandwidth
3 dB, ±10 V range
32
kHz
3 dB, ±5 V range
23
kHz
0.1 dB, ±10 V range
13
kHz
0.1 dB, ±5 V range
10
kHz
tGROUP DELAY
±10 V range
7.1
s
±5 V range
10.2
s
DC ACCURACY
Resolution
No missing codes
18
Bits
Differential Nonlinear
ity2±0.75
0.99/+2
±3
±7.5
LSB
Total Unadjusted Error (TUE)
±10 V range
±10
LSB
±5 V range
±90
LSB
External reference
±8
±140
LSB
Internal reference
±40
LSB
Positive Full-Scale Error Drift
External reference
±2
ppm/°C
Internal reference
±7
ppm/°C
Positive Full-Scale Error Matchi
ng2±10 V range
12
80
LSB
±5 V range
40
100
LSB
±10 V range
±3
±24
LSB
± 5 V range
±3
±48
LSB
Bipolar Zero Code Error Drift
±10 V range
10
V/°C
± 5 V range
5
V/°C
Bipolar Zero Code Error Matchi
ng2±10 V range
2.7
30
LSB
±5 V range
13
65
LSB
External reference
±8
±140
LSB
Internal reference
±40
LSB
Negative Full-Scale Error Drift
External reference
±4
ppm/°C
Internal reference
±8
ppm/°C
Negative Full-Scale Error Matchi
ng2±10 V range
12
80
LSB
±5 V range
40
100
LSB