EVAL-AD7677CBZ Analog Devices Inc, EVAL-AD7677CBZ Datasheet - Page 16

• Manufacturer Part Number: EVAL-AD7677CBZ
• Description: BOARD EVALUATION FOR AD7677
• Manufacturer: Analog Devices Inc
• Series: PulSAR®r

Specifications of EVAL-AD7677CBZ

• Number Of Adc's: 1
• Number Of Bits: 16
• Sampling Rate (per Second): 1M
• Data Interface: Serial, Parallel
• Inputs Per Adc: 1 Differential
• Input Range: ±VREF
• Power (typ) @ Conditions: 115mW @ 1MSPS
• Voltage Supply Source: Analog and Digital
• Operating Temperature: -40°C ~ 85°C
• Utilized Ic / Part: AD7677
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

AD7677
The BYTESWAP pin allows a glueless interface to an 8-bit bus.
As shown in Figure 16, the LSB byte is output on D[7:0] and
the MSB is output on D[15:8] when BYTESWAP is low. When
BYTESWAP is high, the LSB and MSB bytes are swapped and
the LSB is output on D[15:8] and the MSB is output on D[7:0].
By connecting BYTESWAP to an address line, the 16 bits of
data can be read in 2 bytes on either D[15:8] or D[7:0].
Figure 18. Master Serial Data Timing for Reading (Read Previous Conversion During Convert)
SDOUT
CS, RD
CNVST
SDOUT
CS, RD
CNVST
BUSY
SYNC
SCLK
BUSY
SYNC
SCLK
t
16
Figure 17. Master Serial Data Timing for Reading (Read After Convert)
t
3
t
t
15
16
t
t
t
EXT/INT = 0
14
15
14
t
29
t
X
17
t
t
22
18
EXT/INT = 0
t
1
t
D15
3
t
X
20
1
t
22
t
19
t
21
t
20
D14
t
D15
23
2
1
t
t
19
18
RDC/SDIN = 1
RDC/SDIN = 0
D14
t
t
3
21
2
23
–16–
t
28
PINS D[15:8]
3
PINS D[7:0]
BYTE
CS
RD
14
D2
INVSCLK = INVSYNC = 0
INVSCLK = INVSYNC = 0
HI-Z
HI-Z
Figure 16. 8-Bit Parallel Interface
14
D2
15
D1
t
15
D1
12
HIGH BYTE
LOW BYTE
16
t
24
t
16
30
D0
t
24
D0
t
12
HIGH BYTE
LOW BYTE
t
t
t
t
t
t
25
26
26
27
25
27
REV. A
HI-Z
HI-Z
t
13