AD8369ARUZ Analog Devices Inc, AD8369ARUZ Datasheet - Page 17

• Manufacturer Part Number: AD8369ARUZ
• Description: IC AMP VGA 16TSSOP
• Manufacturer: Analog Devices Inc
• Series: X-AMP®r

Specifications of AD8369ARUZ

• Amplifier Type: Variable Gain
• Number Of Circuits: 1
• Slew Rate: 1200 V/µs
• -3db Bandwidth: 600MHz
• Current - Input Bias: 160µA
• Current - Supply: 37mA
• Voltage - Supply, Single/dual (±): 3 V ~ 5.5 V
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: 16-TSSOP
• No. Of Amplifiers: 1
• Bandwidth: 380MHz
• Gain Accuracy: 0.05dB
• No. Of Channels: 1
• Supply Voltage Range: 3V To 5.5V
• Amplifier Case Style: TSSOP
• No. Of Pins: 16
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Output Type: -
• Current - Output / Channel: -
• Gain Bandwidth Product: -
• Voltage - Input Offset: -
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant, Lead free / RoHS Compliant

Key considerations when laying out an RF trace with a controlled
impedance include:
•
•
•
•
REV. 0
Space the ground plane to either side of the signal trace at least
3 line-widths away to ensure that a microstrip (vertical dielec-
tric) line is formed, rather than a coplanar (lateral dielectric)
waveguide.
Ensure that the width of the microstrip line is constant and
that there are as few discontinuations (component pads, etc.)
as possible along the length of the line. Width variations
cause impedance discontinuities in the line and may result
in unwanted reflections.
Do not use silkscreen over the signal line; this will alter the
line impedance.
Keep the length of the input and output connection lines as
short as possible.
IN
IN
J1
J2
CLOCK
LATCH
DATA
1
1k
14
R3
TC4-1W
2
0
R1
15
T1
3
16
R2
0
4
1k
R13
17
1nF
1nF
C4
C3
5
INLO
INHI COMM
1k
V
16
18
S
R4
1
PWUP
D-SUB 25 PIN MALE
R
L
6
C9
OPEN
COMM BIT0
Figure 9. Evaluation Board Schematic
15
2
C5
0.1 F
19
3
PWUP VPOS SENB
7
SW 2
1
2
2
14
3
R6
0
20
3
1
BIT1
8
AD8369
5
4
13
4
PWDN
R7
0
6
21
C8
1nF
BIT2
8
7
9
12
5
–17–
R8
0
9
22
BIT3
FILT CMDC OPHI
10
11
11
10
6
H
The AD8369 contains both digital and analog sections. Care
should be taken to ensure that the digital and analog sections
are adequately isolated on the PC board. The use of separate
ground planes for each section connected at only one point via a
ferrite bead inductor will ensure that the digital pulses do not
adversely affect the analog section of the AD8369.
C7
0.1 F
R9
0
SW3
23
DENB
12
10
7
11
C8
1nF
R10
0
Figure 8. Cross-Sectional View of a PC Board
OPLO
24
r
8
9
12
1nF
1nF
C2
C1
25
1
13
3W
OPEN
2
R5
SW4
R11
0
4
T2
4
8
W
TC4-1W
R12
0
V
S
3W
AD8369
OUT
J6
OUT
J7
2
A
B
V
3
1
S
SW1
T