AD6640 Analog Devices, AD6640 Datasheet - Page 7

• Manufacturer Part Number: AD6640
• Description: Multi-Channel, Multi-Mode Receiver Chipset
• Manufacturer: Analog Devices

Specifications of AD6640

• Resolution (bits): 12bit
• # Chan: 1
• Sample Rate: 65MSPS
• Interface: Par
• Analog Input Type: Diff-Uni
• Ain Range: 2 V p-p
• Adc Architecture: Pipelined
• Pkg Type: QFP

REV. A
ENCODE
V
REF
AV
AIN
AIN
CC
Figure 4. Compensation Pin, C1
Figure 2. Analog Input Stage
V
V
V
CURRENT
V
Figure 3. ENCODE Inputs
MIRROR
CH
CL
CH
CL
R1
17k
R2
8k
AV
AV
AV
CC
CC
CC
450
450
CIRCUITS
AV
TIMING
AV
CC
CC
DIGITAL OUTPUTS
C1
ENCODE INPUTS
BUF
BUF
BUF
ANALOG
AV
INPUTS
(ENCODE)
17k
(D11–D0)
CC
8k
R2
R1
AIN
AIN
V
T/H
T/H
REF
AV
CC
t
A
Figure 1. Timing Diagram
ENCODE
t
OD
N
–7–
–7–
N – 2
N + 1
2.4V
N – 1
Equivalent Circuits–AD6640
Figure 5. Digital Output Stage
Figure 6. 2.4 V Reference
CURRENT
CURRENT
MIRROR
MIRROR
DV
CC
N
0.5mA
V
REF
AV
CC
DV
AV
CC
CC
D0–D11
V
REF