AD7608 Analog Devices, AD7608 Datasheet - Page 4

• Manufacturer Part Number: AD7608
• Description: 8-Channel DAS with 18-Bit, Bipolar, Simultaneous Sampling ADC
• Manufacturer: Analog Devices

Specifications of AD7608

• Resolution (bits): 18bit
• # Chan: 8
• Sample Rate: 200kSPS
• Interface: Par,Ser,SPI
• Analog Input Type: Diff-Bip
• Ain Range: Bip 10V,Bip 5.0V
• Adc Architecture: SAR
• Pkg Type: QFP

AD7608
SPECIFICATIONS
V
Table 2.
Parameter
DYNAMIC PERFORMANCE
ANALOG INPUT FILTER
DC ACCURACY
REF
Signal-to-Noise Ratio (SNR)
Signal-to-(Noise + Distortion) (SINAD)
Dynamic Range
Total Harmonic Distortion (THD)
Peak Harmonic or Spurious Noise (SFDR)
Intermodulation Distortion (IMD)
Channel-to-Channel Isolation
Full Power Bandwidth
t
Resolution
Differential Nonlinearity
Integral Nonlinearity
Total Unadjusted Error (TUE)
Positive Full-Scale Error
Positive Full-Scale Error Drift
Positive Full-Scale Error Matching
Bipolar Zero Code Error
Bipolar Zero Code Error Drift
Bipolar Zero Code Error Matching
Negative Full-Scale Error
Negative Full-Scale Error Drift
Negative Full-Scale Error Matching
GROUP DELAY
= 2.5 V external/internal, AV
Second-Order Terms
Third-Order Terms
2
2, 5
2, 6
2
2, 5
2, 3
2
CC
2
= 4.75 V to 5.25 V, V
2
2
2
2
2
2
Test Conditions/Comments
f
Oversampling by 16; ±10 V range; f
Oversampling by 16; ±5 V range; f
No oversampling; ±10 V range
No oversampling; ±5 V range
No oversampling; ±10 V range
No oversampling; ±5 V range
No oversampling; ±10 V range
No oversampling; ±5 V range
fa = 1 kHz, fb = 1.1 kHz
f
−3 dB, ±10 V range
−3 dB, ±5 V range
−0.1 dB, ±10 V range
−0.1 dB, ±5 V range
±10 V range
±5 V range
No missing codes
±10 V range
±5 V range
External reference
Internal reference
External reference
Internal reference
±10 V range
±5 V range
±10 V range
± 5 V range
±10 V range
± 5 V range
±10 V range
±5 V range
External reference
Internal reference
External reference
Internal reference
±10 V range
±5 V range
IN
IN
= 1 kHz sine wave unless otherwise noted
on unselected channels up to 160 kHz
DRIVE
= 2.3 V to 5.25 V; f
Rev. A | Page 4 of 32
SAMPLE
IN
IN
= 200 kSPS, T
= 130 Hz
= 130 Hz
Min
98
95.5
89.5
88.5
88.5
88
18
A
= T
MIN
to T
MAX
Typ
99.5
97.5
90.9
90
90.5
89.5
91.5
90.5
−107
−108
−110
−106
−95
23
15
10
5
11
15
±0.75
±2.5
±15
±40
±15
±40
±2
±7
12
30
±3.5
±3.5
10
5
3
21
±15
±40
±4
±8
12
30
, unless otherwise noted.
Max
−95
−0.99/+2.6
±7.5
±128
95
128
±24
±48
30
65
±128
95
128
Data Sheet
Unit
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
kHz
kHz
kHz
kHz
µs
µs
Bits
LSB
LSB
LSB
LSB
LSB
LSB
ppm/°C
ppm/°C
LSB
LSB
LSB
LSB
µV/°C
µV/°C
LSB
LSB
LSB
LSB
ppm/°C
ppm/°C
LSB
LSB
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