AD7729AR Analog Devices Inc, AD7729AR Datasheet - Page 5

• Manufacturer Part Number: AD7729AR
• Description: IC ADC 15BIT DUAL W/DAC 28-SOIC
• Manufacturer: Analog Devices Inc
• Type: ADC, DACr

Specifications of AD7729AR

• Rohs Status: RoHS non-compliant
• Resolution (bits): 15 b
• Sampling Rate (per Second): 270.8k
• Data Interface: Serial
• Voltage Supply Source: Analog and Digital
• Voltage - Supply: 3V
• Operating Temperature: -40°C ~ 105°C
• Mounting Type: Surface Mount
• Package / Case: 28-SOIC (7.5mm Width)

REV. 0
TIMING DIAGRAMS
ASDOFS (O)
BSDOFS (O)
Figure 3. Load Circuit for Timing Specifications
ASCLK (O)
ASDIFS (I)
BSCLK (O)
ASDO (O)
BSDIFS (I)
BSDO (O)
ASDI (I)
BSDI (I)
ASE (I)
BSE (I)
NOTE
I = INPUT, O = OUTPUT
TO OUTPUT PIN
THREE-STATE
THREE-STATE
THREE-STATE
THREE-STATE
THREE-STATE
THREE-STATE
NOTE
I = INPUT, O = OUTPUT
Figure 2. Clock Timing
t
3
15pF
C
L
t
10
t
100 A
100 A
18
t
t
1
t
12
t
t
20
11
19
I
I
OL
OH
t
2
D9
D9
Figure 7. Baseband Serial Port BSPORT
+2.1V
Figure 6. Auxiliary Serial Port ASPORT
t
t
15
23
t
t
10
18
t
D8
13
D8
t
D9
21
t
D9
11
t
19
t
t
14
22
–5–
A1
A1
A2
A2
t
16
t
24
*BSCLK
*ASCLK
*ASCLK IS INDIVIDUALLY PROGRAMMABLE IN FREQUENCY
*BSCLK IS INDIVIDUALLY PROGRAMMABLE IN FREQUENCY
(MCLK/4 SHOWN HERE).
(MCLK/4 SHOWN HERE).
A0
MCLK
MCLK
A0
A1
A1
t
t
25
17
A0
A0
Figure 4. ASCLK
t
Figure 5. BSCLK
t
1
1
t
t
9
6
t
t
t
t
4
3
7
3
D9
D9
t
t
8
5
D8
D8
t
t
2
2
AD7729
D9
D9
D7
D7
D8
D8