Datasheet

MAX2371/MAX2373
LNAs with Step Attenuator and VGA
2 _______________________________________________________________________________________
ABSOLUTE MAXIMUM RATINGS
DC ELECTRICAL CHARACTERISTICS
(V
CC
= 2.775V, RX_EN = high, R
SET
= 1.1kΩ, V
AGC
= V
CC
/2, T
A
= -40°C to +85°C. Typical values are at T
A
= +25°C, unless other-
wise noted.)
Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only, and functional
operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to
absolute maximum rating conditions for extended periods may affect device reliability.
V
CC
to GND...........................................................-0.3V to +3.6V
All Pins Excluding Grounds to Pin GND.....-0.3V to (V
CC
+ 0.3V)
LNA Input Power (RX_EN = low) ........................................5dBm
Continuous Power Dissipation (T
A
= +70°C)
12-Pin QFN (derate 11.9mW/°C above +70°C) ...........952mW
Operating Temperature Range ...........................-40°C to +85°C
Junction Temperature......................................................+150°C
Storage Temperature Range .............................-65°C to +160°C
Soldering Temperature (10s) ...........................................+300°C
PARAMETER
SYMBOL
CONDITIONS
MIN TYP MAX
UNITS
Supply Voltage V
CC
2.65 2.775 3.30
V
RX_EN = low, V
CC
= 3.3V 0.5 20 µA
LNA_I = high, RF_ATTN = low 3.5 5.5 mASupply Current I
CC
LNA_I = low 2.5 3.5 mA
Digital Input Logic High V
IH
Pins LNA_I, RF_ATTN, RX_EN 0.7
✕
V
CC
V
CC
V
Digital Input Logic Low V
IL
Pins LNA_I, RF_ATTN, RX_EN 0
0.3
✕
V
CC
V
Logic Pin Impedance Logic pins RX_EN, RF_ATTN, LNA_I 50 kΩ
AGC Pin Impedance Pins AGC
100
kΩ
AC ELECTRICAL CHARACTERISTICS
(MAX2371/MAX2373 EV Kits, V
CC
= 2.65V to 3.3V, RX_EN = high, R
SET
= 1.1kΩ, T
A
= -40°C to +85°C. Typical values are at V
CC
=
2.775V; for MAX2371 f
RF
= 150MHz, for MAX2373 f
RF
= 850MHz to 940MHz; T
A
= +25°C, unless otherwise noted.) (Note 1)
PARAMETER CONDITIONS
MIN TYP MAX
UNITS
LNA AND AGC AMP CHARACTERISTICS
Low band (MAX2371)
136 150 174
Radio Frequency Range (Note 2)
High band (MAX2373)
850 900 940
MHz
MAX2371 -12
-9.5
LNA_I = high;
RF_ATTN = low
MAX2373 -15
-9.5
MAX2371 -14 -10
Input Return Loss (S11)
(Note 3)
LNA_I = high;
RF_ATTN = high
MAX2373 -10
-6.5
dB
MAX2371 -40 -35
Reverse Isolation (S12) Over AGC range
MAX2373 -42 -35
dB
MAX2371 13
14.5
16
LNA_I = high, T
A
=
+25°C, V
CC
= 2.775V
MAX2373 14
15.5
17
MAX2371
10.5
12
Max Power Gain (Note 3)
LNA_I = low, T
A
=
+25°C, V
CC
= 2.775V
MAX2373
10.5
13
dB
Gain Variation Over Temperature T
A
= -40°C to +85°C, V
AGC
< 1.8V
-2.0
2.0 dB