Datasheet MAX4473 (Maxim) - 3
| Manufacturer | Maxim |
| Description | Low-Cost, Low-Voltage, PA Power Control Amplifier for GSM Applications |
| Pages / Page | 9 / 3 — Low-Cost, Low-Voltage, PA Power Control. Amplifier for GSM Applications. … |
| File Format / Size | PDF / 207 Kb |
| Document Language | English |
Low-Cost, Low-Voltage, PA Power Control. Amplifier for GSM Applications. MAX4473. ELECTRICAL CHARACTERISTICS (continued)
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Low-Cost, Low-Voltage, PA Power Control Amplifier for GSM Applications MAX4473 ELECTRICAL CHARACTERISTICS (continued)
(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 CONDITIONS MIN TYP MAX UNITS
V R CC - L = 10Ω to VCC / 2 0.15 0.15 Output Voltage Swing V V R CC - L = 500Ω to VCC / 2 0.5 0.5 Output Current Limit VOUT = VCC / 2 20 mA Gain-Bandwidth Product RL = 10Ω, CL = 300pF, fo = 10kHz 2 MHz Phase Margin RL = 10Ω, CL = 300pF 60 degrees Measured from 30% to 70% of V Slew Rate OUT, 1.8 V/µs RL = 10Ω, CL = 300pF Capacitive-Load Stability No sustained oscillations (Note 3) 0 300 pF Enable/Disable Time From 50% of SHDN edge to VOUT = 1V, VPC = 2V 0.9 1.5 µs
GAIN CONTROL BUFFER AND V-TO-I CONVERTER
PC Input Bias Current GND < VPC < VCC - 0.15V ±0.04 ±1 µA SR3 Output Current Limit VPC < 2.55V, SR1 = SR2 = VCC 0.750 4 mA Measure voltage across RG1, VPC to VRG1 Ratio 0.095 0.1 0.105 V/V 0.3V < VPC < 2.55V (Note 4) PC Input Bandwidth Bandwidth from VPC to VRG1 2 MHz
Note 1:
Limits over temperature are guaranteed by design.
Note 2:
No output phase-reversal for input common-mode voltage range from GND to VCC. Common-mode range limited by voltage drop across Q1 and RG3.
Note 3:
Guaranteed by design.
Note 4:
Error dependent on tolerance of RG1, RG2, and RG3. Specified with 0.1% tolerance resistors.
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(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 CONDITIONS MIN TYP MAX UNITS
V R CC - L = 10Ω to VCC / 2 0.15 0.15 Output Voltage Swing V V R CC - L = 500Ω to VCC / 2 0.5 0.5 Output Current Limit VOUT = VCC / 2 20 mA Gain-Bandwidth Product RL = 10Ω, CL = 300pF, fo = 10kHz 2 MHz Phase Margin RL = 10Ω, CL = 300pF 60 degrees Measured from 30% to 70% of V Slew Rate OUT, 1.8 V/µs RL = 10Ω, CL = 300pF Capacitive-Load Stability No sustained oscillations (Note 3) 0 300 pF Enable/Disable Time From 50% of SHDN edge to VOUT = 1V, VPC = 2V 0.9 1.5 µs
GAIN CONTROL BUFFER AND V-TO-I CONVERTER
PC Input Bias Current GND < VPC < VCC - 0.15V ±0.04 ±1 µA SR3 Output Current Limit VPC < 2.55V, SR1 = SR2 = VCC 0.750 4 mA Measure voltage across RG1, VPC to VRG1 Ratio 0.095 0.1 0.105 V/V 0.3V < VPC < 2.55V (Note 4) PC Input Bandwidth Bandwidth from VPC to VRG1 2 MHz
Note 1:
Limits over temperature are guaranteed by design.
Note 2:
No output phase-reversal for input common-mode voltage range from GND to VCC. Common-mode range limited by voltage drop across Q1 and RG3.
Note 3:
Guaranteed by design.
Note 4:
Error dependent on tolerance of RG1, RG2, and RG3. Specified with 0.1% tolerance resistors.
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