19-2136; Rev 1; 9/01
SC70/SOT23-8, 50mA I
OUT
, Rail-to-Rail I/O
Op Amps with Shutdown/Mute
General Description
The MAX4335鈥揗AX4338 op amps deliver 40mW per
channel into 32鈩?from ultra-small SC70/SOT23 pack-
ages making them ideal for mono/stereo headphone
drivers in portable applications. These amplifiers have
a 5MHz gain-bandwidth product and are guaranteed to
deliver 50mA of output current while operating from a
single supply of 2.7V to 5.5V.
The MAX4336 and the MAX4338 have a shutdown/mute
mode that reduces the supply current to 0.04碌A(chǔ) per
amplifier and places the outputs in a high-impedance
state.
The MAX4335鈥揗AX4338 have 90dB power-supply
rejection ratio (PSRR), eliminating the need for costly
pre-regulation in most audio applications. Both the
input voltage range and the output voltage swing
include both supply rails, maximizing dynamic range.
The MAX4335/MAX4336 single amplifiers are available
in ultra-small 6-pin SC70 packages. The MAX4337/
MAX4338 dual amplifiers are available in an 8-pin
SOT23 and a 10-pin 碌MAX package, respectively. All
devices are specified from -40擄C to +85擄C.
o
50mA Output Drive Capability
o
Low 0.003% THD (20kHz into 10k鈩?
o
Rail-to-Rail
廬
Inputs and Outputs
o
2.7V to 5.5V Single-Supply Operation
o
5MHz Gain-Bandwidth Product
o
95dB Large-Signal Voltage Gain
o
90dB Power-Supply Rejection Ratio
o
No Phase Reversal for Overdrive Inputs
o
Ultra-Low Power Shutdown/Mute Mode
Reduces Supply Current to 0.04碌A(chǔ)
Places Output in High-Impedance State
o
Thermal Overload Protection
Features
MAX4335鈥揗AX4338
Ordering Information
PART
MAX4335EXT-T
MAX4336EXT-T
MAX4337EKA-T
MAX4337EUA
MAX4338EUB
TEMP RANGE
-40擄C to +85擄C
-40擄C to +85擄C
-40擄C to +85擄C
-40擄C to +85擄C
-40擄C to +85擄C
PIN-
PACKAGE
6 SC70-6
6 SC70-6
8 SOT23-8
8 碌MAX
10 碌MAX
TOP
MARK
AAX
AAW
AAIK
鈥?/div>
鈥?/div>
________________________Applications
32鈩?Headphone Drivers
Portable/Battery-Powered Instruments
Wireless PA Control
Hands-Free Car Phones
Transformer/Line Drivers
DAC/ADC Buffers
Pin Configurations appear at end of data sheet.
Typical Operating Circuit
V
CC
TOTAL HARMONIC DISTORTION
PLUS NOISE vs. FREQUENCY
0.005
R
L
= 10k鈩?
V
CC
= 5V
V
OUT
= 2V
P-P
R3
C1
V
IN
R4
MAX4335
MAX4336
C2
THD + NOISE (%)
32鈩?/div>
0.004
0.003
R2
R1
C3
0.002
10
100
1k
FREQUENCY (Hz)
10k
100k
Rail-to-Rail is a registered trademark of Nippon Motorola Ltd.
________________________________________________________________
Maxim Integrated Products
1
For pricing, delivery, and ordering information, please contact Maxim/Dallas Direct! at
1-888-629-4642, or visit Maxim鈥檚 website at www.maxim-ic.com.
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