AD7908BRUZ Analog Devices Inc, AD7908BRUZ Datasheet - Page 25

• Manufacturer Part Number: AD7908BRUZ
• Description: IC ADC 8BIT 8CH 1MSPS 20-TSSOP
• Manufacturer: Analog Devices Inc

Specifications of AD7908BRUZ

• Data Interface: DSP, MICROWIRE™, QSPI™, Serial, SPI™
• Number Of Bits: 8
• Sampling Rate (per Second): 1M
• Number Of Converters: 1
• Power Dissipation (max): 13.5mW
• Voltage Supply Source: Single Supply
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: 20-TSSOP (0.173", 4.40mm Width)
• Resolution (bits): 8bit
• Sampling Rate: 1MSPS
• Input Channel Type: Single Ended
• Supply Voltage Range - Analog: 2.7V To 5.25V
• Supply Current: 2.7mA
• Digital Ic Case Style: TSSOP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• For Use With: EVAL-AD79X8CBZ - BOARD EVALUATION FOR AD79X8
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant, Lead free / RoHS Compliant

DOUT
DOUT
SCLK
SCLK
THREE-STATE
THREE-STATE
DIN
DIN
CS
CS
t
t
t
t
2
2
3
3
DOUT
SCLK
DOUT
SCLK
THREE-STATE
THREE-STATE
DIN
DIN
CS
CS
ZERO
ZERO
WRITE
WRITE
1
THREE IDENTIFICATION BITS
1
THREE IDENTIFICATION BITS
ADD2
ADD2
SEQ1
t
t
SEQ
9
9
ZERO
ZERO
t
t
WRITE
2
2
V
2
2
IN
1
t
t
1
0
ADD1
ADD1
3
THREE IDENTIFICATION BITS
3
ADD2
ADD2
DONTC
DONTC
THREE IDENTIFICATION BITS
t
SEQ
t
9
9
V
IN
3
3
1
2
t
t
2
ADD0
ADD0
4
4
ADD1
Figure 29. AD7928 Writing to SHADOW Register Timing Diagram
ADD1
SEQUENCE 1
ADD2
ADD2
DONTC
V
IN
4
4
Figure 26. AD7908 Serial Interface Timing Diagram
Figure 27. AD7918 Serial Interface Timing Diagram
Figure 28. AD7928 Serial Interface Timing Diagram
2
3
3
DB7
DB7
ADD0
ADD0
ADD1
t
ADD1
t
6
6
ADD2
V
IN
5
5
3
4
t
t
4
7
7
DB6
DB6
t
t
DB11
t
DB11
CONVERT
CONVERT
t
t
CONVERT
t
CONVERT
4
ADD0
ADD0
4
t
ADD1
t
t
t
6
Rev. B | Page 25 of 28
10
10
6
V
IN
6
6
t
10
t
5
4
5
10
DB10
DB10
ADD0
V
IN
11
11
6
5
6
DB0
t
DB2
t
7
CODING DONTC
7
CODING DONTC
12
12
13
13
ZERO
DB1
DB2
DB2
DONTC
B
13
13
14
t
5
t
14
ZERO
SEQUENCE 2
5
DB0
DB1
DONTC
DONTC
DONTC
DB1
FOUR TRAILING ZEROS
B
B
TWO TRAILING ZEROS
V
14
14
IN
t
t
15
5
5
6
15
ZERO
ZERO
t
DB0
8
DONTC
DONTC
DONTC
t
DB0
AD7908/AD7918/AD7928
8
V
15
15
IN
16
t
16
7
11
t
t
t
ZERO
ZERO
THREE-STATE
8
8
11
THREE-STATE
DONTC
DONTC
C
t
QUIET
16
16
t
t
11
11
THREE-STATE
THREE-STATE
t
t
QUIET
QUIET