AD7609BSTZ Analog Devices Inc, AD7609BSTZ Datasheet - Page 18

• 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
Figure 27. Reference Output Voltage vs. Temperature for Different Supply
Figure 28. Analog Input Current vs. Input Voltage Over Temperature
2.5010
2.5005
2.5000
2.4995
2.4990
2.4985
2.4980
–10
–15
110
105
100
10
–5
95
90
85
80
5
0
–20
–40
NO OS
Figure 26. Dynamic Range vs. Oversampling Ratio
DIFFERENTIAL ANALOG INPUT VOLTAGE (Vx+ – (Vx–)) (V)
AV
AV
AV
T
INTERNAL REFERENCE
f
SAMPLE
A
CC
CC
CC
= 25°C
–15
–25
= 5V
= 4.75V
= V
OS × 2
SCALES WITH OS RATIO
DRIVE
–10
–10
AV
f
= 5V
SAMPLE
OS × 4
OVERSAMPLING RATIO
CC
TEMPERATURE (°C)
, V
5
–5
Voltages
DRIVE
±10V RANGE
= 200kSPS
OS × 8 OS × 16 OS × 32 OS × 64
20
+25°C V+
+25°C V–
+85°C V–
+85°C V+
–40°C V–
–40°C V+
= 5V
±5V RANGE
0
AV
CC
35
= 5.25V
5
50
10
65
15
80
20
Rev. 0 | Page 18 of 36
–100
140
130
120
110
100
–10
–20
–30
–40
–50
–60
–70
–80
–90
22
20
18
16
14
12
10
NO OS
90
80
70
60
8
0
10
0
Figure 31. CMRR vs. Common-Mode Ripple Frequency
AV
T
INTERNAL REFERENCE
f
SAMPLE
A
AV
T
f
INTERNAL REFERENCE
SAMPLE
CC
Figure 29. Supply Current vs. Oversampling Rate
= 25°C
A
100
CC
= 25°C
, V
OS × 2
, V
DRIVE
VARIES WITH OS RATE
200
DRIVE
= 200kSPS
±10V RANGE
100
= 5V
300
AV
AV
INTERNAL REFERENCE
AD7609 RECOMMENDED DECOUPLING USED
f
T
= 5V
SAMPLE
A
OS × 4
CC
CC
= 25°C
OVERSAMPLING RATIO
400
, V
Figure 30. PSRR
NOISE FREQUENCY (kHz)
FREQUENCY (Hz)
DRIVE
= 200kSPS
500
OS × 8
= 5V
±5V RANGE
1k
600
±5V RANGE
OS × 16
700
800
±10V RANGE
10k
OS × 32
900
1000
OS × 64
1100
100k