AD7767 Analog Devices, AD7767 Datasheet - Page 6

• Manufacturer Part Number: AD7767
• Description: 24-Bit, 15 mW, 109 dB, 128 kSPS/64 kSPS/32 kSPS ADCs
• Manufacturer: Analog Devices

Specifications of AD7767

• Resolution (bits): 24bit
• # Chan: 1
• Sample Rate: 128kSPS
• Interface: Ser
• Analog Input Type: Diff-Uni
• Ain Range: (2Vref) p-p
• Adc Architecture: SAR
• Pkg Type: SOP

AD7767
TIMING DIAGRAMS
CS = 0
MCLK
DRDY
DRDY
SCLK
DRDY
SCLK
Figure 2. DRDY vs. MCLK Timing Diagram, n = 1 for AD7767 (Decimate by 8), n = 2 for AD7767-1 (Decimate by 16), n = 4 for AD7767-2 (Decimate by 32)
SDO
SDO
CS
INVALID
DATA
t
1
1
MSB
t
t
6
14
t
1
7
MSB
Figure 4. Serial Timing Diagram, Reading Data Setting CS Logic Low
1
t
t
D22
2
READ
t
8
t
Figure 3. Serial Timing Diagram, Reading Data Using CS
8
t
3
D22
t
D21
9
t
8 × n
4
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D21
t
10
t
9
D20
t
5
t
11
t
10
t
t
D20
DRDY
READ
1
t
t
DRDY
READ
t
11
D1
t
DRDY
23
D1
23
LSB
8 × n
LSB
24
t
13
INVALID
t
t
DATA
5
15
t
12