AD9020TZ View Datasheet(PDF) - Analog Devices
Part Name
Description
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AD9020TZ Datasheet PDF : 12 Pages
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AD9020
AD9020/PCB EVALUATION BOARD
The AD9020/PCB Evaluation Board is available from the fac-
tory and is shown here in block diagram form. The board in-
cludes a reference circuit that allows the user to adjust both
references and the quarter-point voltages. The AD9617 is in-
cluded as the drive amplifier, and the user can configure the
gain from –1 to –15.
On-board reconstruction of the digital data is provided through
the AD9713, a 12-bit monolithic DAC. The analog and recon-
structed waveforms can be summed on the board to allow the
user to observe the linearity of the AD9020 and the effects of
the quarterpoint voltages. The digital data and an adjustable
Data Ready signal are available through a 37-pin edge connector.
DAC
OUT
BUFFERED
ANALOG
INPUT
200Ω
50Ω
400Ω
U5
AD9617
TO ERROR
WAVEFORM
CIRCUIT
– 5V +5V
DUT
ANALOG
INPUT
J2
24Ω
REFERENCE
CIRCUIT
–VS +VS GND MSB INVERT
LSBs INVERT
ANALOG
INPUT
+VREF
+VSENSE
3/4REF
1/2REF
(LSB) D0
D1
D2
D3
D4
AD9020
DUT
D5
D6
D7
D8
(MSB) D9
OVERFLOW
1/4REF
–VSENSE
–VREF
ENCODE
AD9713 DAC IOUT
D
50Ω
TO ERROR
WAVEFORM
+5V
CIRCUIT
D
D
D
D
Q
D
D
TTL
LATCHES
D
D
D
D
CLK
D
TTL CLK
OUTPUT
DATA
CONNECTOR
DATA
READY
TIMING
CIRCUIT
AD9020/PCB Evaluation Board Block Diagram
OUTLINE DIMENSIONS
Dimensions shown in inches and (mm).
68-Leaded Ceramic Chip Carrier
(Z-68)
68-Terminal
Leadless Chip Carrier (LCC)
(E-68A)
–12–
REV. A
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