EVAL-AD7643CBZ Analog Devices Inc, EVAL-AD7643CBZ Datasheet - Page 6

• Manufacturer Part Number: EVAL-AD7643CBZ
• Description: BOARD EVALUATION FOR AD7643
• Manufacturer: Analog Devices Inc
• Series: PulSAR®r

Specifications of EVAL-AD7643CBZ

• Number Of Adc's: 1
• Number Of Bits: 18
• Sampling Rate (per Second): 1.25M
• Data Interface: Serial, Parallel
• Inputs Per Adc: 1 Differential
• Input Range: ±VREF
• Power (typ) @ Conditions: 65mW @ 1.25MSPS
• Voltage Supply Source: Analog and Digital
• Operating Temperature: -40°C ~ 85°C
• Utilized Ic / Part: AD7643
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

AD7643
Table 4. Serial Clock Timings in Master Read After Convert Mode
DIVSCLK[1]
DIVSCLK[0]
SYNC to SCLK First Edge Delay Minimum
Internal SCLK Period Minimum
Internal SCLK Period Maximum
Internal SCLK High Minimum
Internal SCLK Low Minimum
SDOUT Valid Setup Time Minimum
SDOUT Valid Hold Time Minimum
SCLK Last Edge to SYNC Delay Minimum
BUSY High Width Maximum
TO OUTPUT
NOTE
IN SERIAL INTERFACE MODES, THE SYNC, SCLK, AND
SDOUT TIMING ARE DEFINED WITH A MAXIMUM LOAD
C
L
Figure 2. Load Circuit for Digital Interface Timing,
OF 10pF; OTHERWISE, THE LOAD IS 60pF MAXIMUM.
SDOUT, SYNC, and SCLK Outputs, C
PIN
50pF
C
L
500µA
500µA
I
I
OL
OH
1.4V
L
= 10 pF
Rev. 0 | Page 6 of 28
Symbol
t
t
t
t
t
t
t
t
t
18
19
19
20
21
22
23
24
28
t
DELAY
0.8V
0
0
1
8
20
2
2
1
0
0
0.84
Figure 3. Voltage Reference Levels for Timing
0
1
3
16
40
8
8
5
0.5
0.5
1.14
2V
0.8V
1
0
3
32
70
16
16
5
10
9
1.72
2V
1
1
3
64
135
32
32
5
30
26
2.88
t
DELAY
2V
0.8V
Unit
ns
ns
ns
ns
ns
ns
ns
ns
μs