Datasheet

MAX4298/MAX4299
Ultra-High PSRR Stereo Drivers +
Microphone Amp + 100mA Linear Regulator
2 _______________________________________________________________________________________
ABSOLUTE MAXIMUM RATINGS
ELECTRICAL CHARACTERISTICS
(V
CC
= SV
CC
= +5V, R
L
= ∞ on all outputs, C
BYPASS
= 1µF, C
BIAS
= 1µF, C
REG
= 10µF (MAX4299), T
A
= T
MIN
to T
MAX
, unless other-
wise noted. Load resistors (R
L
) are terminated to 2.25V. Typical values are at T
A
= +25°C. Specifications apply to both MAX4298 and
MAX4299, unless otherwise noted.) (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.
Supply Voltage (V
CC
) to GND ...............................................+6V
Standby Supply Voltage (SV
CC
) to GND...............................+6V
REG, FB, REGON to GND..........................-0.3V to (V
CC
+ 0.3V)
BIAS, C
BYPASS
, MUTE, IN_, MICIN to GND ..............-0.3V to the
Larger of (V
CC
+0.3V) or (SV
CC
+0.3V)
OUT_, MICOUT to GND................................-0.3V to the Smaller
of +5.5V, or (V
CC
+ 0.3V)
Duration of Output Short-Circuit to GND or V
CC
................10min
Continuous Power Dissipation
10-Pin µMAX (derate 5.6mW/°C above +70°C)...........444mW
14-Pin SO (derate 8.3mW/°C above +70°C)................667mW
20-Pin SO (derate 10.0mW/°C above +70°C)..............800mW
16-Pin TSSOP (derate 9.4mW/°C above +70°C) .........755mW
Operating Temperature Range ..........................-40°C to +85°C
Storage Temperature Range.............................-65°C to +150°C
Lead Temperature (soldering, 10s).................................+300°C
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
Supply Voltage Range V
CC
Inferred from PSRR test 4.5 5.5 V
MAX4298
10.2 17.5
Quiescent Current I
CC
MAX4299
10.6 18.0
mA
MAX4298
10.2 17.5
Mute Quiescent Current
MAX4299
10.6 18.0
mA
V
BIAS
= 1.125V, V
CC
= 0 300
500
SV
CC
Current (Note 2) I
SVCC
V
BIAS
= 2.25V, V
CC
= 5.0V 7
µA
DRIVER AMPLIFIERS
Input Offset Voltage V
OS
±1
±10
mV
Input Bias Current I
BIAS
0.2 nA
DC, V
CC
= 4.5V to 5.5V 115
f = 20kHz 93
Power-Supply Rejection
Ratio
PSRR
f = 100kHz 80
dB
R
L
= 10kΩ
1.45 1.59
R
L
= 32Ω 1.2
1.53
Output Drive V
OUT
R
L
= 16Ω 1.0
1.48
V
RMS
A
V
= -1V/V, f = 1kHz, R
L
= 10kΩ,
V
OUT
= 1.5V
RMS
0.0008
A
V
= -1V/V, f = 1kHz, R
L
= 32Ω,
V
OUT
= 1.2V
RMS
, (Notes 3, 4)
0.02
0.1THD + Noise
A
V
= -1V/V, f = 1kHz, R
L
= 16Ω,
V
OUT
= 1.0V
RMS
0.04
%
Full-Scale Signal-to-Noise Ratio
(Note 4)
SNR
R
L
= 10kΩ,
V
OUT
= 1.06V
RMS
, A
V
= -1V/V
105 dB
Capacitive Drive 22 nF
Open-Loop Voltage Gain A
VOL
R
L
= 32Ω, 0.55V ≤ V
OUT
≤ V
CC
- 0.55V 76 87 dB
Unity-Gain Bandwidth GBW 1.3
MHz