Silicon Bipolar MMIC 1.5 GHz
Variable Gain Amplifier
Technical Data
IVA-05208
Features
Description
SO-8 Package
• Differential Input and
Output Capability
• DC to 1.5 GHz Bandwidth;
2.0 Gb/s Data Rates
• High Gain: 30 dB Typical
• Wide Gain Control Range:
30␣ dB Typical
• 5 V Bias
• 5 V Vgc Control Voltage,
Igc␣ <␣ 3mA
• Fast Gain Control Response:
< 10 ns Typical
• Low Cost Plastic Surface
Mount Package
The IVA-05208 is a variable gain
amplifier housed in a miniature
low cost plastic surface mount
package. This device can be used
in any combination of singleended or differential inputs or
outputs (see Functional Block
Diagram). The lowest frequency
of operation is limited only by the
values of user selected blocking
and bypass capacitors.
PIN 1
The IVA series of variable gain
amplifiers is fabricated using HP’s
10 GHz fT, 25 GHz fMAX
ISOSAT™-I silicon bipolar
process. This process uses nitride
self-alignment, submicrometer
lithography, trench isolation, ion
implantation, gold metallization
and polyimide inter-metal
dielectric and scratch protection
to achieve excellent performance,
uniformity and reliability.
Typical applications include
variable gain amplification for
fiber optic systems (e.g., SONET)
with data rates up to 2.0 Gb/s,
mobile radio and satellite
receivers, millimeter wave
receiver IF amplifiers and
communication receivers.
Typical Biasing Configuration and Functional Block Diagram
Single Ended Input / Single Ended Output
Differential Input / Differential Output
C bypass
C block
Input
1
8
2
7
C bypass
C block
Input
Vgc
1
8
2
7
3
6
4
5
Vgc
50 Ω*
Output –
Vee = 0 V
3
6
Vee = 0 V
C block
4
Input
5
C block
C block
Output +
Output +
C block
VCC = 5 V
C bypass
C bypass
C bypass = 1000 pF typical
Good grounding of Pins 2, 3 is critical for proper
operation and good VSWR performance of this part.
6-177
C block
VCC = 5 V
C bypass
* Optional: For Single-Ended Output operation, Pin 7
may be left unterminated (no C block or 50 Ω)
5965-9682E
IVA-05208 Absolute Maximum Ratings
Symbol
VCC-Vee
Parameter
Device Voltage
Units
V
8
Power Dissipation[2,3]
mW
600
Input Power
dBm
+14
V
7
Vgc -Vee
Thermal Resistance[2]:
θjc = 150°C/W
Absolute
Maximum[1]
TJ
Junction Temperature
°C
150
TSTG
Storage Temperature
°C
-65 to 150
Notes:
1. Permanent damage may occur is any of
these limits are exceeded.
2. TCASE = 25°C.
3. Derate at 6.67 mW/°C for TC > 60°C.
IVA-05208 Electrical Specifications[1], TA = 25°C
Symbol
Parameters and Test Conditions:[2]
VCC = 5 V, Vee = 0 V, Vgc = 0 V, ZO = 50 Ω
Gp
Power Gain (|S21|2)
∆Gp
Gain Flatness
f3dB
3 dB Bandwidth[3]
GCR
Gain Control Range[4]
ISO
Reverse Isolation (|S21|2)
Input VSWR
VSWR
Output VSWR
Units
Min.
Typ.
f = 0.5 GHz
dB
25
30
f = 0.05 to 1.0 GHz
dB
Max.
± 0.8
GHz
1.2
1.8
f = 0.5 GHz
Vgc = 0 to 5 V
dB
25
30
f = 0.5 GHz
Vgc = 0 to 5 V
dB
45
f = 0.05 to 1.5 GHz
Vgc = 0 to 5 V
f = 0.05 to 1.5 GHz
Vgc = 0 to 5 V
2.0:1
2.5:1
NF
50 Ω Noise Figure
f = 0.5 GHz
dB
9
P1dB
Output Power at 1 dB Gain
Compression
f = 0.5 GHz
dBm
-3
VOUT
Peak-to-Peak Single-Ended
Output Voltage
f = 0.5 GHz
mVpp
450
IP3
Output Third Order Intercept Point
f = 0.5 GHz
dBm
7
tD
Group Delay
f = 0.5 GHz
psec
400
ICC
Supply Current
mA
25
35
50
Notes:
1. The recommended operating voltage range for this device is 4 to 6 V. Typical performance as a function of voltage is on the following
page.
2. As measured using Input Pin 1 and Output Pin 6, with Output Pin 7 terminated into 50 ohms and Input Pin 4 at AC ground.
3. Referenced from 50 MHz Gain.
4. The recommended gain control range for these devices for dynamic control is 0 to 4.2 V. Operation at gain control settings above 4.2V
may result in gain increase rather than gain decrease.
6-178
IVA-05208 Typical Performance, TA = 25°C, VCC = 5 V, Vee = 0 V
60
40
60
2
P1 dB
Vgc < 2.4 V
50
50
0
3.4 V
ICC
40
–2
GP
–4
30
20
–6
20
10
–8
30
3.7 V
4.0 V
–20
5.0 V
–40
0.1
0.2
0.5
1.0
2.0
10
3
4.0
4
5
FREQUENCY (GHz)
6
VCC (V)
Figure 1. Typical Variable Gain vs.
Frequency.
Figure 2. Power Gain and P1 dB at
0.5GHz and ICC vs. Bias Voltage with
Vgc = 0 V.
6
0
30
5
–5
20
4
10
3
40
GP = 30 dB
2
–10
P1 dB (dBm)
P1 dB
Igc (mA)
P1 dB (dBm)
GP
0
7
GP = 15 dB
–10
GP = 5 dB
–15
GP = –5 dB
1
–20
0
–25
0.01
Igc
–20
0
1
2
3
4
5
0.2
0.5
1.0
2.0
4.0
FREQUENCY (GHz)
Vgc (V)
Figure 3. Power Gain and P1 dB at
0.5GHz and Igc vs. Gain Control
Voltage.
Figure 4. P1 dB vs. Frequency.
35
GP = 10 dB
3:1
GP = 15 dB
GP = 20 dB
GP = 25 dB
15
OUTPUT
Vgc = 0 V
Vgc = 5 V
VSWR
NF (dB)
25
INPUT
Vgc = 0 V
Vgc = 5 V
2:1
GP = 30 dB
5
0.01
0.2
0.5
1.0
2.0
4.0
1:1
0.1
0.2
FREQUENCY (GHz)
Figure 5. Noise Figure vs. Frequency.
0.5
1.0
2.0
4.0
FREQUENCY (GHz)
Figure 6. Input and Output VSWR vs.
Frequency, Vgc = 0 – 5 V.
6-179
ICC (mA)
0
40
P1 dB (dBm)
GP (dB)
G P (dB)
20
IVA-05208 Typical Performance, continued, TA = 25°C, VCC = 5 V, Vee = 0 V
38
700
38
ICC
GP = –3 dB
34
32
P1 dB (dBm)
500
36
–2.4
34
P1 dB
32
–2.6
GP = 5 dB
300
30
30
–2.8
GP
28
0.1
0.2
0.5
1.0
2.0
–3.0
–55
4.0
–25
+25
FREQUENCY (GHz)
+85
TEMPERATURE (C)
Figure 8. Power Gain and P1 dB at
0.5GHz and ICC vs. Case Temperature
with Vgc = 0 V.
Figure 7. Group Delay vs. Frequency.
IVA-05208 Part Number Ordering Information
Part Number
Number of Devices
Container
IVA-05208-TR1
1,000
7" Reel
IVA-05208-STR
10
Strip
SO-8 Package Dimensions
1.27 (.050)
6x
3.80/4.00
(.1497/.1574)
5.84/6.20
(.230/.244)
V052
0.38 ± 0.10
(.015 ± .004) x 45°
Pin 1
1.35/1.75
(.0532/.0688)
4.72/5.00
(.186/.197)
0°/8°
0.10 (.004)
0.33/0.51
(.013/.020) 8X
28
+125
0.19/0.25
(.0075/.0098)
0.10/0.25
(.004/.0098)
Note:
1. Dimensions are shown in millimeters (inches).
0.41/1.27
(.016/.050)
6-180
ICC (mA)
–2.2
36
GP (dB)
tD (psec)
GP =30 dB