Datasheet

MAX4411
80mW, Fixed-Gain, DirectDrive, Stereo
Headphone Amplifier with Shutdown
2 _______________________________________________________________________________________
ABSOLUTE MAXIMUM RATINGS
ELECTRICAL CHARACTERISTICS
(PV
DD
= SV
DD
= 3V, PGND = SGND = 0V, SHDNL = SHDNR = SV
DD
, C1 = C2 = 2.2µF, C
IN
= 1µF, R
L
= ∞, T
A
= T
MIN
to T
MAX
,
unless otherwise noted. Typical values are at T
A
= +25°C.) (Note 1)
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.
PGND to SGND .....................................................-0.3V to +0.3V
PV
DD
to SV
DD .................................................................
-0.3V to +0.3V
PV
SS
to SV
SS
.........................................................-0.3V to +0.3V
PV
DD
and SV
DD
to PGND or SGND .........................-0.3V to +4V
PV
SS
and SV
SS
to PGND or SGND ..........................-4V to +0.3V
IN_ to SGND ................................(SV
SS
- 0.3V) to (SV
DD
+ 0.3V)
SHDN_ to SGND........................(SGND - 0.3V) to (SV
DD
+ 0.3V)
OUT_ to SGND .............................(SV
SS
- 0.3V) to (SV
DD
+0.3V)
C1P to PGND.............................(PGND - 0.3V) to (PV
DD
+ 0.3V)
C1N to PGND .............................(PV
SS
- 0.3V) to (PGND + 0.3V)
Output Short Circuit to GND or V
DD
...........................Continuous
Continuous Power Dissipation (T
A
= +70°C)
16-Bump UCSP (derate 7.4mW/°C above +70°C)........589mW
20-Pin Thin QFN (derate 16.9mW/°C above +70°C) ..1349mW
Junction Temperature......................................................+150°C
Operating Temperature Range ...........................-40°C to +85°C
Storage Temperature Range .............................-65°C to +150°C
Bump Temperature (soldering)
Reflow ..........................................................................+230°C
Lead Temperature (soldering, 10s) .................................+300°C
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
Supply Voltage Range V
DD
Guaranteed by PSRR test 1.8 3.6 V
One channel enabled 3.2
Quiescent Supply Current I
DD
Two channels enabled 5 8.4
mA
Shutdown Supply Current I
SHDN
SHDNL = SHDNR = GND 6 10 µA
V
IH
0.7 x
SV
DD
SHDN_ Thresholds
V
IL
0.3 x
SV
DD
V
SHDN_ Input Leakage Current -1 +1 µA
SHDN_ to Full Operation t
SON
175
µs
CHARGE PUMP
Oscillator Frequency f
OSC
272 320
368 kHz
AMPLIFIERS
MAX4411
-1.55 -1.5 -1.45
Voltage Gain A
V
MAX4411B
-2.1
-2
-1.9
V/V
Gain Match ΔA
V
1%
MAX4411 0.7 2.8
Total Output Offset Voltage V
OS
Input AC-coupled
MAX4411B
0.75
3.0
mV
Input Resistance R
IN
10 14 19 kΩ
1.8V ≤ V
DD
≤ 3.6V,
MAX4411
DC (Note 2) 72 86
f
RIPPLE
= 217Hz 86
f
RIPPLE
= 1kHz 75
Power-Supply Rejection Ratio PSRR
V
DD
= 3.0V, 200mV
P-P
ripple, MAX4411
(Note 3)
f
RIPPLE
= 20kHz 53
dB