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MAX2371ETC+

P1-P3P4-P6P7-P9P10-P10
MAX2371/MAX2373
LNAs with Step Attenuator and VGA
4 _______________________________________________________________________________________
Typical Operating Characteristics
(MAX2371/MAX2373 EV Kits, V
CC
= 2.775V, RX_EN = high, R
SET
= 1.1kΩ, LNA_I = high, T
A
= +25°C. For MAX2371, f
RF
= 150MHz;
for MAX2373, f
RF
= 900MHz, unless otherwise noted.)
GAIN vs. FREQUENCY
MAX2371 toc01
FREQUENCY (MHz)
GAIN (dB)
170160150140
-5
0
5
10
15
20
-10
130 180
T
A
= +85°C
T
A
= -40°C
T
A
= +25°C
RF_ATTN = LOW
RF_ATTN = HIGH
GAIN vs. V
AGC
MAX2371 toc02
V
AGC
(V)
GAIN (dB)
2.42.01.6
-50
-40
-30
-20
-10
0
10
20
-60
1.2 2.8
RF_ATTN = LOW
RF_ATTN = HIGH
T
A
= +85°C
T
A
= +25°C
T
A
= -40°C
IIP3 vs. V
AGC
MAX2371 toc03
V
AGC
(V)
IIP3 (dBm)
1.71.61.4 1.5
-10
-5
0
5
10
15
20
25
-15
1.3 1.8
RF_ATTN = LOW
RF_ATTN = HIGH
T
A
= +85°C
T
A
= +25°C
T
A
= -40°C
P
1dB
vs. V
AGC
MAX2371 toc04
V
AGC
(V)
P
1dB
(dBm)
2.72.21.7
-20.0
-15.0
-10.0
-5.0
0
5.0
10.0
-25.0
1.2
T
A
= +25°C
RF_ATTN = LOW
RF_ATTN = HIGH
T
A
= +85°C
T
A
= -40°C
NOISE FIGURE vs. V
AGC
MAX2371 toc05
V
AGC
(V)
NOSIE FIGURE (dB)
2.72.21.7
5
10
15
20
25
30
0
1.2
RF_ATTN = LOW
RF_ATTN = HIGH
S11, S22, S12 vs. FREQUENCY
MAX2371 toc06
FREQUENCY (MHz)
S11, S22, S12 (dB)
170160150140
-45
-40
-35
-30
-25
-20
-15
-10
-5
0
-50
130 180
S22
S11
S12
RF_ATTN = LOW RF_ATTN = HIGH
S11, S22, S12 vs. V
AGC
MAX2371 toc07
V
AGC
(V)
S11, S22, S12 (dB)
2.72.21.7
-50
-40
-30
-20
-10
0
-60
1.2
S22
S11
S11
S12
RF_ATTN = HIGH
RF_ATTN = LOW
MAX2371
MAX2371/MAX2373
LNAs with Step Attenuator and VGA
_______________________________________________________________________________________ 5
IIP3 vs. V
AGC
MAX2371 toc10
V
AGC
(V)
IIP3 (dBm)
1.71.61.51.4
-10
-5
0
5
10
15
20
-15
1.3 1.8
RF_ATTN = LOW
RF_ATTN = HIGH
T
A
= -40°C
T
A
= +25°C
T
A
= +85°C
P
1dB
vs. V
AGC
MAX2371 toc11
V
AGC
(V)
P
1dB
(dBm)
2.72.21.7
-20.0
-15.0
-10.0
-5.0
0
5.0
10.0
-25.0
1.2
T
A
= -40°C
T
A
= 85°C
T
A
= +25°C
RF_ATTN = LOW
RF_ATTN = HIGH
NOISE FIGURE vs. V
AGC
MAX2371 toc12
V
AGC
(V)
NOSIE FIGURE (dB)
2.72.21.7
5
10
15
20
25
30
0
1.2
RF_ATTN = LOW
RF_ATTN = HIGH
Typical Operating Characteristics (continued)
(MAX2371/MAX2373 EV Kits, V
CC
= 2.775V, RX_EN = high, R
SET
= 1.1kΩ, LNA_I = high, T
A
= +25°C. For MAX2371, f
RF
= 150MHz;
for MAX2373, f
RF
= 900MHz, unless otherwise noted.)
S11, S22, S12 vs. FREQUENCY
MAX2371 toc13
FREQUENCY (MHz)
S11, S22, S12 (dB)
920900880860
-45
-40
-35
-30
-25
-20
-15
-10
-5
0
-50
840 940
S22
S11
S12
S11
RF_ATTN = LOW RF_ATTN = HIGH
S11, S22, S12 vs. V
AGC
MAX2371 toc14
V
AGC
(V)
S11, S22, S12 (dB)
2.72.21.7
-35
-40
-30
-25
-20
-15
-10
-5
0
-50
-45
1.2
S22
S11
S11
S12
RF_ATTN = HIGH
RF_ATTN = LOW
GAIN vs. FREQUENCY
MAX2371 toc08
FREQUENCY (MHz)
GAIN (dB)
920900880860
-5
0
5
10
15
20
-10
840 940
T
A
= +85°C
T
A
= -40°C
T
A
= +25°C
RF_ATTN = LOW
RF_ATTN = HIGH
GAIN vs. V
AGC
MAX2371 toc09
V
AGC
(V)
GAIN (dB)
2.42.01.6
-40
-30
-20
-10
0
10
20
-50
1.2 2.8
RF_ATTN = LOW
RF_ATTN = HIGH
T
A
= -40°C
T
A
= +25°C
T
A
= +85°C
MAX2373
MAX2371/MAX2373
LNAs with Step Attenuator and VGA
6 _______________________________________________________________________________________
Table 1. MAX2371 S-Parameters
(V
CC
= 2.775V, RX_EN = high, LNA_I = high, RF_ATTN = low, P
IN
= -30dBm, T
A
= +25°C.)
LNA (S11) LNA (S21) LNA (S12) LNA (S22)
FREQUENCY
(MHz)
MAGNITUDE
PHASE
MAGNITUDE
PHASE
MAGNITUDE
PHASE
MAGNITUDE
PHASE
10
0.943409
-4.8477
5.980672 171.1200
0.002136 -102.490
0.998803
-1.1632
100
0.746965
-29.9420
2.959750 102.1900
0.002021 61.149
0.994752
-4.4481
150
0.728794
-35.6990
2.347308
89.6950 0.003089 138.790
0.985485
-6.0754
200
0.705066
-43.4190
1.769355
75.0130 0.003238 47.793
0.986870
-7.7399
300
0.704636
-55.1180
1.290313
58.1420 0.004439 83.493
0.979073
-11.1180
400
0.719615
-65.2420
1.060230 45.42700
0.003346 82.612
0.963130
-14.6680
500
0.731998
-73.5040
0.930754
36.0670 0.004395 68.614
0.947862
-18.0970
600
0.736258
-80.6450
0.849660
28.4990 0.006155 71.599
0.935998
-21.2670
700
0.738074
-85.6220
0.810047
22.7470 0.004143 56.224
0.930518
-23.5710
800
0.738465
-89.2240
0.796627
18.1080 0.005580 93.741
0.935158
-25.5640
900
0.736843
-91.6690
0.793643
14.3230 0.005309 89.871
0.933372
-27.8980
1000
0.720668
-94.0260
0.801946
9.9632 0.007592 99.418
0.941369
-30.2110
1100
0.712090
-96.1830
0.816554
5.9889 0.008451 122.090
0.940860
-32.2310
1200
0.690343
-98.0560
0.836893
1.1604 0.011955 129.220
0.936774
-34.6290
1300
0.657098 -100.3900 0.861113
-4.3698 0.014966 130.200
0.930219
-37.6190
1400
0.606583 -103.2500 0.891302
-10.2610 0.019602 131.440
0.925103
-40.1400
1500
0.545500 -106.6300 0.925092
-16.1910 0.023963 128.730
0.926670
-42.0800
1600
0.469143 -111.0400 0.966707
-23.1040 0.031521 121.710
0.939042
-43.7830
1700
0.372315 -116.0200 1.002767
-29.9130 0.039505 114.740
0.949456
-45.2980
1800
0.267147 -123.3900 1.021504
-37.6360 0.047321 109.530
0.966296
-46.5300
1900
0.150522 -137.6100 1.021081
-45.7240 0.056859 100.480
0.975001
-48.7600
2000
0.060478 160.4700 0.995004
-53.5490 0.063929 92.788
0.971740
-50.8360
P1-P3P4-P6P7-P9P10-P10

MAX2371ETC+

Mfr. #:
Buy MAX2371ETC+
Manufacturer:
Maxim Integrated
Description:
RF Amplifier LNAs w/Step Attenuator & VGA
Lifecycle:
New from this manufacturer.
Delivery:
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