AD7609BSTZ Analog Devices Inc, AD7609BSTZ Datasheet - Page 16

• Manufacturer Part Number: AD7609BSTZ
• Description: 58T8900
• Manufacturer: Analog Devices Inc

Specifications of AD7609BSTZ

• Resolution (bits): 18bit
• Sampling Rate: 250kSPS
• Input Channel Type: Differential
• Data Interface: Serial, SPI
• Supply Voltage Range - Analog: 4.75V To 5.25V
• Rohs Compliant: Yes

AD7609
–0.2
–0.4
–0.6
–0.8
–1.0
1.0
0.8
0.6
0.4
0.2
–20
–40
–60
–80
–20
–40
–60
–80
80
60
40
20
80
60
40
20
0
0
0
–40
–40
–25
–25
Figure 15. NFS Error vs. Temperature
Figure 16. PFS Error vs. Temperature
Figure 14. Typical DNL, ±5 V Range
–10
–10
TEMPERATURE (°C)
TEMPERATURE (°C)
5
5
CODE
20
20
35
35
200kSPS
AV
EXTERNAL REFERENCE
200kSPS
AV
EXTERNAL REFERENCE
±5V RANGE
AV
T
f
WCP INL = 0.45 LSB
WCN INL = –0.38 LSB
SAMPLE
CC
CC
A
±10V RANGE
±10V RANGE
CC
= 25°C
, V
, V
50
50
, V
DRIVE
DRIVE
DRIVE
±5V RANGE
= 200 kSPS
±5V RANGE
= 5V
= 5V
65
65
= 5V
80
80
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105
100
95
90
85
80
–16
–24
–32
–40
10
–2
40
32
24
16
–8
8
6
4
2
0
10
8
0
–40
0
NFS ERROR
Figure 18. PFS and NFS Error vs. Source Resistance
Figure 19. SNR vs. Input Frequency, ±10 V Range
PFS ERROR
NO OS
OS × 2
OS × 4
OS × 8
OS × 16
OS × 32
OS × 64
–25
Figure 17. NFS and PFS Error Matching
20k
100
–10
SOURCE RESISTANCE (Ω)
INPUT FREQUENCY (Hz)
40k
AV
f
T
EXTERNAL REFERENCE
SOURCE RESISTANCE IS MATCHED ON
THE V– INPUT
±10V AND ±5V RANGE
SAMPLE
TEMPERATURE (°C)
A
5
CC
= 25°C
f
SAMPLE
, V
DRIVE
10k
60k
= 200 kSPS
20
CHANGES WITH OS RATE
= 5V
INTERNAL REFERENCE
35
±10V RANGE
AV
EXTERNAL REFERENCE
80k
CC
AV
, V
50
CC
10k
DRIVE
±10V RANGE
, V
100k
DRIVE
T
A
= 5V
65
= 25°C
= 5V
80
100k
120k