AD7277 Analog Devices, AD7277 Datasheet - Page 23

• Manufacturer Part Number: AD7277
• Description: 3 MSPS,10-Bit ADC in 6-Lead TSOT
• Manufacturer: Analog Devices

Specifications of AD7277

• Resolution (bits): 10bit
• # Chan: 1
• Sample Rate: 3MSPS
• Interface: Ser,SPI
• Analog Input Type: SE-Uni
• Ain Range: Uni Vdd
• Adc Architecture: SAR
• Pkg Type: SOP,SOT

SDATA
SDATA
SDATA
SDATA
SCLK
SCLK
SCLK
SCLK
CS
CS
CS
CS
THREE-
STATE
THREE-
STATE
THREE-
STATE
THREE-
STATE
t
t
t
2
2
2
Z
t
Z
Z
2 LEADING
ZEROS
2 LEADING
ZEROS
2 LEADING
ZEROS
2
2 LEADING ZEROS
Z
1
1
1
t
t
t
3
3
3
ZERO
ZERO
ZERO
1
ZERO
2
2
2
t
t
DB11
4
4
DB9
DB7
2
DB7
3
3
Figure 32. AD7276 Serial Interface Timing Diagram 16 SCLK Cycle
3
DB10
DB8
DB6
3
t
t
t
t
Figure 35. AD7278 in a 10 SCLK Cycle Serial Interface
CONVERT
Figure 33. AD7277 Serial Interface Timing Diagram
CONVERT
Figure 34. AD7278 Serial Interface Timing Diagram
CONVERT
CONVERT
DB6
t
t
4
4
4
5
5
DB9
8.5 (1/f
t
t
4
6
4
10
DB5
8
5
SCLK
DB1
DB1
t
6
t
Rev. C | Page 23 of 28
6
)
1/THROUGHPUT
1/THROUGHPUT
1/THROUGHPUT
1/THROUGHPUT
5
11
9
DB0
DB1
B
DB0
B
t
7
13
12
10
ZERO
ZERO
B
DB0
DB1
t
6
13
11
14
t
9
4 TRAILING ZEROS
6 TRAILING ZEROS
5
ZERO
ZERO
t
t
7
7
B
DB0
2 TRAILING
ZEROS
14
14
15
ZERO
ZERO
10
ZERO
THREE-STATE
t
8
15
15
16
ZERO
ZERO
AD7276/AD7277/AD7278
t
8
THREE-STATE
t
t
QUIET
ACQ
16
16
t
1
THREE-STATE
THREE-STATE
t
t
t
8
8
QUIET
t
t
t
1
QUIET
QUIET
t
1
t
1