MAX4473 Maxim, MAX4473 Datasheet - Page 3

• Manufacturer Part Number: MAX4473
• Description: The MAX4473 PA power control IC is intended for closed-loop bias control of GSM power amplifiers
• Manufacturer: Maxim

ELECTRICAL CHARACTERISTICS (continued)
(V
R
Note 1: Limits over temperature are guaranteed by design.
Note 2: No output phase-reversal for input common-mode voltage range from GND to V
Note 3: Guaranteed by design.
Note 4: Error dependent on tolerance of RG1, RG2, and RG3. Specified with 0.1% tolerance resistors.
Output Voltage Swing
Output Current Limit
Gain-Bandwidth Product
Phase Margin
Slew Rate
Capacitive-Load Stability
Enable/Disable Time
GAIN CONTROL BUFFER AND V-TO-I CONVERTER
PC Input Bias Current
SR3 Output Current Limit
V
PC Input Bandwidth
L
CC
PC
= 10kΩ, C
to VRG1 Ratio
= 2.7V to 6.5V, SHDN > 2.4V, MAX4473 test circuit, RG1 = RG2 = 1kΩ ±1%, RG3 = 2.5kΩ ±1%, R
drop across Q1 and RG3.
PARAMETER
L
= 300pF, T
Low-Cost, Low-Voltage, PA Power Control
_______________________________________________________________________________________
A
= T
MIN
to T
R
R
V
R
R
Measured from 30% to 70% of V
R
No sustained oscillations (Note 3)
From 50% of SHDN edge to V
GND < V
V
Measure voltage across RG1,
0.3V < V
Bandwidth from V
MAX
L
L
OUT
L
L
L
PC
= 10Ω to V
= 500Ω to V
= 10Ω, C
= 10Ω, C
= 10Ω, C
< 2.55V, SR1 = SR2 = V
, unless otherwise noted. Typical values are at V
= V
PC
PC
CC
Amplifier for GSM Applications
< 2.55V (Note 4)
L
L
L
< V
/ 2
CC
= 300pF, f
= 300pF
= 300pF
CC
CC
/ 2
PC
/ 2
- 0.15V
to V
CONDITIONS
o
RG1
= 10kHz
CC
OUT
OUT
= 1V, V
,
PC
= 2V
CC
CC
. Common-mode range limited by voltage
= 6.0V, V
0.750
0.095
MIN
0.15
0.5
0
PC
= 1.0V, T
±0.04
TYP
1.8
0.9
0.1
20
60
2
4
2
SENSE
A
= +25°C.) (Note 1)
V
V
0.105
MAX
0.15
300
0.5
1.5
CC
CC
±1
= 100Ω ±1%,
-
-
degrees
UNITS
MHz
MHz
V/µs
mA
mA
V/V
µA
pF
µs
V
3