PART NUMBER
UPC2708T
UPC2711T
PACKAGE OUTLINE
T06
T06
SYMBOLS
PARAMETERS AND CONDITIONS
UNITS
MIN
TYP
MAX
MIN
TYP
MAX
I
CC
Circuit Current (no signal)
mA
20
26
33
9
12
15
G
S
Small Signal Gain
dB
13
15
18.5
11
13
16.5
f
U
Upper Limit Operating Frequency
(The gain at f
U
is 3 dB down from the gain at 0.1 GHz)
GHz
2.7
2.9
2.7
2.9
G
S
Gain Flatness, f = 0.1 - 2.6 GHz
dB
0.8
f = 0.1 - 2.5 GHz
0.8
P
SAT
Saturated Output Power
dBm
7.5
10
-2
1
P
1dB
Output Power at 1 dB Compression Point
dBm
7.5
-4
NF
Noise Figure
dB
6.5
8
5
6.5
RL
IN
Input Return Loss
dB
8
11
20
25
RL
OUT
Output Return Loss
dB
16
20
9
12
ISOL
Isolation
dB
18
23
25
30
G
T
Gain-Temperature Coefficient
dB/
C
+0.002
-0.002
R
TH
Thermal Resistance (Junction to Ambient)
C/W
200
200
The UPC2708T and UPC2711T are Silicon Monolithic inte-
grated circuits manufactured using the NESAT III process.
These devices are suitable as buffer amplifiers for wide-band
applications. They are designed for low cost gain stages in
cellular radios, GPS receivers, DBS tuners, PCN, and test/
measurement equipment.
NEC's stringent quality assurance and test procedures en-
sure the highest reliability and performance.
DESCRIPTION
ELECTRICAL CHARACTERISTICS
(T
A
= 25
C, f = 1 GHz, V
CC
= 5 V)
UPC2708T
UPC2711T
3 GHz SILICON MMIC
WIDE-BAND AMPLIFIER
FEATURES
WIDE FREQUENCY RESPONSE: 3 GHz
HIGH GAIN: 15 dB (UPC2708T)
SATURATED OUTPUT POWER: +10 dBm (UPC2708T)
INTERNAL CURRENT REGULATION MINIMIZES GAIN
CHANGE OVER TEMPERATURE
5 V SINGLE SUPPLY VOLTAGE
SUPER SMALL PACKAGE
TAPE AND REEL PACKAGING OPTION AVAILABLE
0 0.5 1.0 1.5 2.0 2.5 3.0
20
15
10
5
0
UPC2708
UPC2711
Gain, G
S
(dB)
Frequency, f (GHz)
GAIN vs. FREQUENCY
California Eastern Laboratories
ABSOLUTE MAXIMUM RATINGS
1
(T
A
= 25
C)
SYMBOLS
PARAMETERS
UNITS
RATINGS
V
CC
Supply Voltage
V
6
P
IN
Input Power
dBm
+10
P
T
Power Dissipation
2
mW
280
T
OP
Operating Temperature
C
-40 to +85
T
STG
Storage Temperature
C
-55 to +150
RECOMMENDED
OPERATING CONDITIONS
SYMBOL
PARAMETER
UNITS
MIN
TYP
MAX
V
CC
Supply Voltage
V
4.5
5.0
5.5
Notes:
1. Operation in excess of any one of these parameters may result in
permanent damage.
2. Mounted on 50 x 50 x 1.6 mm epoxy glass PWB (T
A
= +85
C).
UPC2708T, UPC2711T
IN
OUT
V
CC
1000 pF
1000 pF
1000 pF
2, 3, 5
50
C1
1
6
4
C2
L
1000 nH
*
C3
50
TEST CIRCUIT
-60 -40 -20 0 20 40 60 80 100
40
35
30
25
20
15
10
5
0
UPC2708T
UPC2711T
V
CC
= 5.0 V
Circuit Current, I
CC
(mA)
Circuit Current, I
CC
(mA)
0 1 2 3 4 5 6
40
30
20
10
0
UPC2708T
UPC2711T
CIRCUIT CURRENT vs. VOLTAGE
Operating Temperature, T
OP
(
C)
Supply Voltage, V
CC
(V)
CIRCUIT CURRENT vs. TEMPERATURE
TYPICAL PERFORMANCE CURVES
(TA = 25
C)
*
UPC2708T only
0.1 0.3 1.0 3.0
20
15
10
5
0
-5
V
CC
= 5.5 V
V
CC
= 5.0 V
V
CC
= 4.5 V
NF
Gp
V
CC
= 5.5 V
V
CC
= 5.0 V
V
CC
= 4.5 V
8
7
6
5
4
Noise Figure, NF (dB)
Frequency, f (GHz)
0.1 0.3 1.0 3.0
20
15
10
5
Gp
NF
5.5 V
4.5 V
V
CC
= 5.5 V
V
CC
= 5.0 V
V
CC
= 5.0 V
V
CC
= 4.5 V
9
8
7
6
5
Noise Figure, NF (dB)
Gain, G
S
(dB)
Gain, G
S
(dB)
Frequency, f (GHz)
UPC2711T
GAIN AND NOISE FIGURE
vs. FREQUENCY AND VOLTAGE
UPC2708T
GAIN AND NOISE FIGURE
vs. FREQUENCY AND VOLTAGE
Isolation, ISOL (dB)
Isolation, ISOL (dB)
TYPICAL PERFORMANCE CURVES
(T
A
= 25
C)
Input Return Loss (dB)
Output Return Loss (dB)
Input Return Loss (dB)
Output Return Loss (dB)
UPC2708T
INPUT RETURN LOSS, OUTPUT
RETURN LOSS vs. FREQUENCY
0.1 0.3 1.0 3.0
0
-10
-20
-30
-40
V
CC
= 5.0 V
RL
in
RL
out
Frequency, f (GHz)
UPC2711T
INPUT RETURN LOSS, OUTPUT
RETURN LOSS vs. FREQUENCY
0.1 0.3 1.0 3.0
0
-10
-20
-30
-40
V
CC
= 5.0 V
RL
out
RL
in
Frequency, f (GHz)
0.1 0.3 1.0 3.0
0
-10
-20
-30
-40
-50
V
CC
= 5.0 V
UPC2708T
ISOLATION vs. FREQUENCY
Frequency, f (GHz)
0.1 0.3 1.0 3.0
V
CC
= 5.0 V
0
-10
-20
-30
-40
-50
UPC2711T
ISOLATION vs. FREQUENCY
Frequency, f (GHz)
Power (dBm)
UPC2708T, UPC2711T
Frequency, f (GHz)
X: Typical SSB Third Order intercept Point
0 0.5 1.0 1.5 2.0 2.5 3.0 3.5
25
20
15
10
5
0
-5
P
SAT
P
1dB
X
X
X
V
CC
= 5.0 V
X: Typical SSB Third Order intercept Point
Frequency, f (GHz)
Power (dBm)
UPC2708T
POWER vs. FREQUENCY
0 0.5 1.0 1.5 2.0 2.5 3.0 3.5
15
10
5
0
-5
-10
-15
P
1dB
P
SAT
V
CC
= 5.0 V
X
X
X
UPC2711T
POWER vs. FREQUENCY
TYPICAL PERFORMANCE CURVES
(T
A
= 25
C)
UPC2708T
OUTPUT POWER vs. INPUT
POWER AND TEMPERATURE
Output Power, Pout (dBm)
-30 -25 -20 -15 -10 -5 0 5
15
10
5
0
-5
-10
-15
-20
f = 1.0 GH
Z
V
CC
= 5.0 V
85 C
-40 C
T
A
= -25 C
Output Power, Pout (dBm)
Input Power, P
IN
(dBm)
-35 -30 -25 -20 -15 -10 -5 0 5
5
0
-5
-10
-15
-20
V
CC
= 5.0 V
f = 1.0 GH
Z
85 C
-40 C
-20 C
T
A
= 25 C
Input Power, P
IN
(dBm)
UPC2711T
OUTPUT POWER vs. INPUT
POWER AND TEMPERATURE
-35 -30 -25 -20 -15 -10 -5 0 5
5
0
-5
-10
-15
-20
f = 1.0 GH
Z
5.5 V
4.5 V
V
CC
= 5.0 V
UPC2711T
OUTPUT POWER vs. INPUT
POWER AND VOLTAGE
0 0.5 1.0 1.5 2.0 2.5 3.0
10
9
8
7
6
5
4
UPC2708T
UPC2711T
Noise Figure, NF (dB)
Frequency, f (GHz)
UPC2708T
OUTPUT POWER vs. INPUT
POWER AND VOLTAGE
-30 -25 -20 -15 -10 -5 0 5
15
10
5
0
-5
-10
-15
-20
f = 1.0 GH
Z
5.5 V
4.5 V
V
CC
= 5.0 V
Output Power, P
OUT
(dBm)
Output Power, P
OUT
(dBm)
Input Power, P
IN
(dBm)
Input Power, P
IN
(dBm)
UPC2708T, UPC2711T
NOISE FIGURE vs. FREQUENCY
TYPICAL SCATTERING PARAMETERS
(TA = 25
C)
FREQUENCY
S
11
S
21
S
12
S
22
K
1
S
21
GHz
MAG
ANG
MAG
ANG
MAG
ANG
MAG
ANG
(dB)
0.10
0.040
-3.6
5.1
-3.2
0.073
0.2
0.132
-11.5
1.49
14.2
0.20
0.063
30.7
5.2
-11.6
0.072
-1.3
0.138
-12.1
1.49
14.3
0.30
0.087
41.8
5.2
-18.5
0.071
-3.0
0.139
-13.1
1.50
14.3
0.40
0.112
47.5
5.2
-25.4
0.070
-4.2
0.140
-17.1
1.51
14.3
0.50
0.132
49.4
5.2
-32.3
0.069
-5.6
0.142
-19.8
1.51
14.3
0.60
0.162
49.6
5.2
-38.4
0.068
-5.9
0.144
-21.3
1.52
14.3
0.70
0.187
47.7
5.2
-45.3
0.067
-6.2
0.147
-23.6
1.52
14.3
0.80
0.211
45.7
5.2
-52.3
0.066
-6.6
0.150
-26.1
1.52
14.3
0.90
0.238
44.4
5.2
-59.3
0.065
-6.6
0.153
-28.5
1.52
14.4
1.00
0.265
40.0
5.2
-64.4
0.064
-5.3
0.157
-31.0
1.52
14.4
1.20
0.319
32.0
5.2
-79.1
0.063
-5.3
0.165
-36.1
1.48
14.4
1.40
0.363
23.8
5.2
-94.2
0.061
-5.5
0.171
-43.7
1.48
14.3
1.60
0.404
15.3
5.1
-109.5
0.060
-4.9
0.176
-50.2
1.45
14.2
1.80
0.435
6.9
5.0
-125.6
0.060
-3.7
0.168
-57.3
1.46
13.9
2.00
0.460
-3.4
4.7
-141.1
0.060
-0.4
0.156
-62.5
1.49
13.4
2.20
0.456
-12.6
4.5
-156.6
0.060
-0.4
0.141
-60.3
1.58
13.0
2.40
0.442
-19.9
4.1
-172.5
0.060
-1.8
0.123
-61.6
1.74
12.3
2.60
0.422
-26.5
3.7
172.7
0.060
0.2
0.100
-61.5
1.95
11.4
2.80
0.396
-31.5
3.3
158.9
0.059
0.1
0.077
-61.6
2.26
10.4
3.00
0.365
-35.3
2.9
146.5
0.059
2.0
0.051
-56.7
2.62
9.3
FREQUENCY
S
11
S
21
S
12
S
22
K
1
S
21
GHz
MAG
ANG
MAG
ANG
MAG
ANG
MAG
ANG
(dB)
0.10
0.115
-13.9
4.1
-5.3
0.036
-1.3
0.098
-2.1
3.34
12.3
0.20
0.110
-22.1
4.1
-12.1
0.035
-2.0
0.103
2.7
3.44
12.3
0.30
0.104
-31.2
4.1
-18.3
0.034
-4.8
0.106
4.8
3.54
12.3
0.40
0.096
-41.7
4.2
-24.0
0.033
-5.1
0.116
5.6
3.63
12.4
0.50
0.085
-52.0
4.2
-29.9
0.032
-7.5
0.126
6.6
3.70
12.4
0.60
0.080
-58.8
4.2
-35.6
0.031
-8.9
0.142
4.1
3.82
12.4
0.70
0.071
-74.8
4.2
-41.3
0.030
-10.6
0.150
2.2
3.87
12.6
0.80
0.056
-88.7
4.3
-47.6
0.029
-10.7
0.160
0.5
3.94
12.7
0.90
0.044
-103.9
4.3
-54.2
0.028
-11.4
0.173
-2.6
4.03
12.8
1.00
0.030
-125.2
4.4
-61.0
0.027
-13.2
0.187
-5.3
4.13
12.8
1.20
0.028
149.4
4.5
-74.4
0.024
-11.0
0.211
-13.4
4.47
13.1
1.40
0.060
96.8
4.6
-89.4
0.022
-9.9
0.233
-21.3
4.75
13.2
1.60
0.103
72.8
4.6
-104.8
0.020
-5.6
0.250
-30.2
5.11
13.2
1.80
0.150
53.6
4.5
-121.3
0.019
7.0
0.259
-38.4
5.38
13.1
2.00
0.201
38.3
4.5
-136.9
0.020
20.8
0.264
-46.0
5.08
13.0
2.20
0.244
26.8
4.3
-152.6
0.021
28.7
0.261
-53.5
4.94
12.6
2.40
0.284
17.2
4.1
-167.4
0.026
29.9
0.244
-59.5
4.16
12.2
2.60
0.318
8.4
3.8
178.2
0.031
33.7
0.222
-62.9
3.70
11.6
2.80
0.347
1.8
3.5
165.2
0.034
31.7
0.198
-62.8
3.58
11.0
3.00
0.369
-3.9
3.3
152.4
0.039
29.9
0.175
-58.8
3.35
10.4
3.20
0.386
-8.4
3.1
140.5
0.043
27.3
0.163
-49.0
3.25
9.7
3.40
0.397
-11.9
2.8
129.0
0.048
24.7
0.162
-37.3
3.14
9.1
UPC2708T, UPC2711T
V
CC
= 5 V, I
CC
= 12 mA
UPC2711T
V
CC
= 5 V, I
CC
= 26 mA
UPC2708T
Note:
1. K factor calculations:
K = 1 + |
| - |S
11
| - |S
22
|
2
2
2
2 |S
12
S
21
|
,
= S
11
S
22
- S
21
S
12
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