AD7884BP Analog Devices Inc, AD7884BP Datasheet - Page 4

• Manufacturer Part Number: AD7884BP
• Description: IC ADC 16BIT SAMPLING HS 44-PLCC
• Manufacturer: Analog Devices Inc

Specifications of AD7884BP

• Rohs Status: RoHS non-compliant
• Number Of Bits: 16
• Sampling Rate (per Second): 166k
• Data Interface: Parallel
• Number Of Converters: 2
• Power Dissipation (max): 325mW
• Voltage Supply Source: Dual ±
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: 44-PLCC

AD7884/AD7885
Figure 2. AD7884 Timing Diagram, Using CS and RD
CONVST
BUSY
DATA
RD
CS
t
1
CONVST
CONVST
HBEN
BUSY
DATA
HBEN
BUSY
DATA
t
2
CS
RD
HI-Z
t
1
t
t
1
CONVERT
Figure 5. AD7885 Timing Diagram, with CS and RD Permanently Low
t
2
t
2
OLD DATA VALID
HI-Z
(DB8–DB15)
Figure 4. AD7885 Timing Diagram, Using CS and RD
t
3
t
CONVERT
t
CONVERT
t
6
t
VALID
DATA
4
t
9
t
HI-Z
8
t
t
5
t
3
t
7
6
NEW DATA VALID
–4–
(DB8–DB15)
Figure 3. AD7884 Timing Diagram, with CS and RD
Permanently Low
DB0–DB7
CONVST
t
VALID
DATA
4
BUSY
DATA
t
13
NEW DATA VALID
t
t
5
11
(DB0–DB7)
HI-Z
t
7
t
t
10
1
t
2
t
OLD DATA VALID
14
NEW DATA VALID
t
(DB8–DB15)
12
t
CONVERT
DB8–DB15
VALID
DATA
NEW DATA VALID
(DB0–DB7)
HI-Z
NEW DATA VALID
t
8
REV. E