MAX4473 Просмотр технического описания (PDF) - Maxim Integrated
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MAX4473 Datasheet PDF : 9 Pages
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Low-Cost, Low-Voltage, PA Power Control
Amplifier for GSM Applications
ABSOLUTE MAXIMUM RATINGS
VCC to GND..............................................................................7V
SR1, SR2, SR3, PC, SHDN,
OUT to GND ............................................-0.3V to (VCC + 0.3V)
SR1 to SR3......................................................................0 to VCC
OUT and SR3 Short-Circuit Duration
to VCC or GND ........................................................Continuous
Current into Any Pin..........................................................±50mA
Continuous Power Dissipation (TA = +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
(VCC = 2.7V to 6.5V, SHDN > 2.4V, MAX4473 test circuit, RG1 = RG2 = 1kΩ ±1%, RG3 = 2.5kΩ ±1%, RSENSE = 100Ω ±1%,
RL = 10kΩ, CL = 300pF, TA = TMIN to TMAX, unless otherwise noted. Typical values are at VCC = 6.0V, VPC = 1.0V, TA = +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
CONDITIONS
VPC = 0
SHDN < 0.4V, RL = 10Ω
SHDN = 0 to VCC
1V < VSR1, VSR2 < VCC
1V < VSR1, VSR2 < VCC at +25°C
1V < VSR1, VSR2 < VCC
MIN TYP MAX UNITS
2.7
6.5
V
1.2
2
mA
0.03
1
µA
2.4
V
0.4
V
±0.5
µA
±0.5
±2
mV
±0.5
±1
10
µV/°C
SR1, SR2 Input Common-Mode
Voltage Range
Inferred from CMRR test; VSR2 = GND (Note 2)
1
VCC
V
SR1, SR2 Input Bias Current
1V < VSR1, VSR2 < VCC, VPC = GND, SR3 = unconnected
±0.04 ±1
µA
SR1, SR2 Input Bias Offset
Current
1V < VSR1, VSR2 < VCC, VPC = GND, SR3 = unconnected
±0.001 ±0.2
µA
SR1, SR2 Shutdown Leakage
Current
SHDN < 0.4V, VSR1 = VSR2 = VCC
±0.001 ±0.5
µA
Common-Mode Rejection Ratio
1V < VSR1, VSR2 < VCC, VCC = 2.7V
VPC = GND
VCC = 6.5V
65
85
dB
75
95
Power-Supply Rejection Ratio
2.7V < VCC < 6.5V, VPC = GND
80
90
dB
Large-Signal Gain
RL = 10kΩ to VCC / 2
VCC = 6.5V, 0.3V < VOUT < 6V
VCC = 2.7V, 0.3V < VOUT < 2.4V
80
80
130
125
dB
RL = 500Ω to VCC / 2
VCC = 6.5V, 0.7V < VOUT < 5.5V
80
130
VCC = 2.7V, 0.7V < VOUT < 2.2V 80
120
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