Low-Cost, Low-Voltage, PA Power Control
Amplifier for GSM Applications
MAX4473
ABSOLUTE MAXIMUM RATINGS
V
CC
to GND..............................................................................7V
SR1, SR2, SR3, PC,
SHDN,
OUT to GND ............................................-0.3V to (V
CC
+ 0.3V)
SR1 to SR3......................................................................0 to V
CC
OUT and SR3 Short-Circuit Duration
to V
CC
or GND ........................................................Continuous
Current into Any Pin..........................................................±50mA
Continuous Power Dissipation (T
A
= +70°C)
8-Pin µMAX (derate 4.10mW/°C above +70°C) ............330mW
8-Pin SO (derate 5.88mW/°C above +70°C).................471mW
Operating Temperature Range ...........................-40°C to +85°C
Junction Temperature. .....................................................+150°C
Storage Temperature Range. ............................-65°C to +150°C
Lead Temperature (soldering, 10s) .................................+300°C
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.
ELECTRICAL CHARACTERISTICS
(V
CC
= 2.7V to 6.5V,
SHDN
> 2.4V, MAX4473 test circuit, RG1 = RG2 = 1kΩ ±1%, RG3 = 2.5kΩ ±1%, R
SENSE
= 100Ω ±1%,
R
L
= 10kΩ, C
L
= 300pF, T
A
= T
MIN
to T
MAX
, unless otherwise noted. Typical values are at V
CC
= 6.0V, V
PC
= 1.0V, T
A
= +25°C.) (Note 1)
PARAMETER
GENERAL
Supply Voltage
Supply Current
Shutdown Supply Current
SHDN
Input High Voltage
SHDN
Input Low Voltage
SHDN
Input Current
ERROR AMPLIFIER
SR1, SR2 Input Offset Voltage
SR1, SR2 Input Offset Voltage
Drift
SR1, SR2 Input Common-Mode
Voltage Range
SR1, SR2 Input Bias Current
SR1, SR2 Input Bias Offset
Current
SR1, SR2 Shutdown Leakage
Current
Common-Mode Rejection Ratio
Power-Supply Rejection Ratio
SHDN
= 0 to V
CC
1V < V
SR1
, V
SR2
< V
CC
1V < V
SR1
, V
SR2
< V
CC
at +25°C
1V < V
SR1
, V
SR2
< V
CC
Inferred from CMRR test; V
SR2
= GND (Note 2)
1V < V
SR1
, V
SR2
< V
CC
, V
PC
= GND, SR3 = unconnected
1V < V
SR1
, V
SR2
< V
CC
, V
PC
= GND, SR3 = unconnected
SHDN
< 0.4V, V
SR1
= V
SR2
= V
CC
1V < V
SR1
, V
SR2
< V
CC
, V
CC
= 2.7V
V
PC
= GND
V
CC
= 6.5V
2.7V < V
CC
< 6.5V, V
PC
= GND
R
L
= 10kΩ to V
CC
/ 2
Large-Signal Gain
R
L
= 500Ω to V
CC
/ 2
V
CC
= 6.5V, 0.3V < V
OUT
< 6V
V
CC
= 2.7V, 0.3V < V
OUT
< 2.4V
V
CC
= 6.5V, 0.7V < V
OUT
< 5.5V
V
CC
= 2.7V, 0.7V < V
OUT
< 2.2V
65
75
80
80
80
80
80
1
±0.04
±0.001
±0.001
85
95
90
130
125
130
120
dB
±0.5
±0.5
10
V
CC
±1
±0.2
±0.5
V
PC
= 0
SHDN
< 0.4V, R
L
= 10Ω
2.4
0.4
±0.5
±2
±1
2.7
1.2
0.03
6.5
2
1
V
mA
µA
V
V
µA
CONDITIONS
MIN
TYP
MAX
UNITS
mV
µV/°C
V
µA
µA
µA
dB
dB
2
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