MAX4366EUA+ ,330mW, Ultra-Small, Audio Power Amplifiers with ShutdownApplicationsMAX4366EBL-T -40°C to +85°C 8 UCSP-8 AAKCellular PhonesMAX4366EKA-T -40°C to +85°C 8 SO ..
MAX436CPD ,Wideband Trasconductance AmplifiersFeatures
. 275MHz Bandwidth (MAX435)
. tb50Wps Slew Rate
ta
. No Feedback
. True Differentia ..
MAX436CSD ,Wideband Trasconductance AmplifiersApplications
High-Speed Instrumentation Amplifiers
High-Speed Filters
Wideband, High-Gain Bandpa ..
MAX436EPD ,Wideband Trasconductance Amplifiersapplications, sucn a5 lllgll'apku "F%Pbtbr0r's'''""'"''"' -
plitiers and wideband, high-gain bandp ..
MAX436ESD ,Wideband Trasconductance AmplifiersELECTRICAL CHARACTERISTICS - MAX435
(V+ = W, V- = -5v, -2.5vs IN+ s 2.5V, -2.5V s IN- s 2.5V, ZL+ ..
MAX436ESD+T ,250MHz Wideband Transconductance Amplifier with Differential Output Not Recommended for New Designs This product was manufactured for Maxim by an outside wafer foun ..
MAX816CPA ,【1% Accuracy, Low-Power, +3V and +5V レP Supervisory CircuitsELECTRICAL CHARACTERISTICS, +5V Parts (MAX814/MAX815K, L, N)(VCC = 4.85V to 5.5V for MAX814K/MAX815 ..
MAX816CSA ,【1% Accuracy, Low-Power, +3V and +5V レP Supervisory CircuitsFeaturesThe MAX814/MAX815/MAX816 are high-accuracy' ±1% Worst-Case Reset Threshold Accuracymicropro ..
MAX816CSA ,【1% Accuracy, Low-Power, +3V and +5V レP Supervisory CircuitsGeneral Description ________
MAX816CSA ,【1% Accuracy, Low-Power, +3V and +5V レP Supervisory CircuitsApplicationsL 4.65 4.75Medical EquipmentN 4.50 4.60ControllersT 3.00 3.06Intelligent InstrumentsMAX ..
MAX816CSA+ ,±1% Accuracy, Low-Power, +3V and +5V µP Supervisory Circuitsfeatures.♦ ±2% Power-Fail Comparator♦ Independent Watchdog with 1.56sec Timeout_Selector Table(MAX8 ..
MAX816CSA-T ,±1% Accuracy, Low-Power, +3V and +5V µP Supervisory CircuitsGeneral Description ________
MAX4366EUA+
330mW, Ultra-Small, Audio Power Amplifiers with Shutdown
General DescriptionThe MAX4366/MAX4367/MAX4368 are bridged audio
power amplifiers intended for devices with internal
speakers and headsets. The MAX4366/MAX4367/
MAX4368 are capable of delivering 330mW of continu-
ous power into a 32Ωload, or 200mW into a 16Ωload
with 1% THD+N from a single 5V supply.
The MAX4366/MAX4367/MAX4368 bridged outputs elimi-
nate the need for output-coupling capacitors minimizing
external component count. The MAX4366/MAX4367/
MAX4368 also feature a low-power shutdown mode,
clickless power-up/power-down and internal DC bias
generation. The MAX4366 is a unity-gain stable, program-
mable gain amplifier. The MAX4367/MAX4368 feature
internally preset gains of 2V/V and 3V/V, respectively.
All devices are available in space-saving 8-pin SOT23,
thin QFN and µMAX packages, and an 8-bump chip-
scale package (UCSP™).
ApplicationsCellular Phones
Two-Way Radios
PDAs
Headphones
Headsets
General-Purpose Audio
FeaturesDrives 330mW into 32Ω(200mW into 16Ω)0.02% THD+N at 1kHz (120mW into 32Ω)Internal Bridged ConfigurationNo Output-Coupling Capacitors2.3V to 5.5V Single-Supply Operation2mA Supply CurrentLow-Power Shutdown ModeClickless Power-Up and ShutdownThermal Overload ProtectionAvailable in SOT23, Thin QFN, µMAX, and UCSP
Packages
MAX4366/MAX4367/MAX4368
330mW, Ultra-Small, Audio Power Amplifiers
with Shutdown
Pin Configurations
Ordering Information
Typical Operating Circuit19-2338; Rev 2; 12/02
*EP = Exposed paddle.
Ordering Information continued at end of data sheet.
Selector Guide and Functional Diagrams appear at end of
data sheet.UCSP is a trademark of Maxim Integrated Products, Inc.
MAX4366/MAX4367/MAX4368
330mW, Ultra-Small, Audio Power Amplifiers
with Shutdown
ABSOLUTE MAXIMUM RATINGS
ELECTRICAL CHARACTERISTICS(VCC= 5V, RL= ∞, RIN= RF= 30kΩ, CBIAS= 1µF to GND, SHDN = GND, IN+ = BIAS, TA= TMINto TMAX, unless otherwise noted.
Typical values are at TA= +25°C.) (Note 3)
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.
VCCto GND..............................................................-0.3V to +6V
IN+, IN-, BIAS, SHDN.................................-0.3V to (VCC+ 0.3V)
Output Short Circuit to VCCor GND (Note 1).............Continuous
Output Short Circuit (OUT+ to OUT-) (Note 1)...........Continuous
Continuous Power Dissipation (TA= +70°C)
8-Bump UCSP (derate 4.7mW/°C above +70°C)..........379mW
8-Pin SOT23 (derate 9.7mW/°C above +70°C).............777mW
8-Pin µMAX (derate 4.5mW/°C above +70°C)..............362mW
8-Pin Thin QFN (derate 24.4mW°C above +70°C).....1951mW
Operating Temperature Range...........................-40°C to +85°C
Junction Temperature......................................................+150°C
Storage Temperature Range.............................-65°C to +150°C
Lead Temperature (soldering, 10s).................................+300°C
Bump Temperature (soldering) (Note 2)
Infrared (15s)................................................................+220°C
Vapor Phase (60s)........................................................+215°C
MAX4366/MAX4367/MAX4368
330mW, Ultra-Small, Audio Power Amplifiers
with Shutdown
ELECTRICAL CHARACTERISTICS (continued)(VCC= 5V, RL= ∞, RIN= RF= 30kΩ, CBIAS= 1µF to GND, SHDN = GND, IN+ = BIAS, TA= TMINto TMAX, unless otherwise noted.
Note 1:Continuous power dissipation must also be observed.
Note 2:This device is constructed using a unique set of packaging techniques that impose a limit on the thermal profile the device
can be exposed to during board-level solder attach and rework. This limit permits only the use of the solder profiles recom-
mended in the industry-standard specification, JEDEC 020A, paragraph 7.6, Table 3 for IR/VPR and convection reflow.
Preheating is required. Hand or wave soldering is not allowed.
Note 3:All specifications are 100% tested at TA= +25°C; temperature limits are guaranteed by design.
Note 4:Quiescent power-supply current is specified and tested with no load on the outputs. Quiescent power-supply current
depends on the offset voltage when a practical load is connected to the amplifier.
Note 5:Common-mode bias voltage is the voltage on BIAS and is nominally VCC/2.
Note 6:Differential voltage gain for the MAX4366 is specified as an open-loop parameter because external resistors are used to set
the closed-loop gain. The MAX4367/MAX4368 contain internal feedback resistors that preset the differential voltage gain.
Differential voltage gain is defined as (VOUT+- VOUT-) / (VIN- VBIAS). All gains are specified over an output voltage range of
0.6V ≤VOUT≤4.4V.
Note 7:Specification applies to either output. An amplifier peak output current of 87mA is required to support an output load power
of 60mW for a 16Ωload, or 120mW for a 32Ωload.
Note 8:Output power specifications are inferred from the output current test. For 60mW into a 16Ωload, IOUT(PEAK)is 87mA and
VOUT(P-P)is 1.39V per amplifier. For 120mW into a 32Ωload, IOUT(PEAK)is 87mA and VOUT(P-P)is 2.77V per amplifier.
Note 9:Guaranteed by design. Not production tested.
Note 10:Measurement bandwidth for THD+N is 20Hz to 20kHz.
Note 11:Power-up and shutdown times are for the output to reach 90% of full scale with CBIAS= 1µF.
MAX4366/MAX4367/MAX4368
330mW, Ultra-Small, Audio Power Amplifiers
with Shutdown
Typical Operating Characteristics(Bridge-Tied Load, THD+N Bandwidth = 22Hz to 22kHz, CBIAS= 1µF.)
MAX4366/MAX4367/MAX4368
330mW, Ultra-Small, Audio Power Amplifiers
with Shutdown
Typical Operating Characteristics (continued)(Bridge-Tied Load, THD+N Bandwidth = 22Hz to 22kHz, CBIAS= 1µF.)
MAX4366/MAX4367/MAX4368
330mW, Ultra-Small, Audio Power Amplifiers
with Shutdown
Typical Operating Characteristics (continued)(Bridge-Tied Load, THD+N Bandwidth = 22Hz to 22kHz, CBIAS= 1µF.)
MAX4366/MAX4367/MAX4368
330mW, Ultra-Small, Audio Power Amplifiers
with Shutdown
Typical Operating Characteristics (continued)(Bridge-Tied Load, THD+N Bandwidth = 22Hz to 22kHz, CBIAS= 1µF.)
MAX4366/MAX4367/MAX4368
330mW, Ultra-Small, Audio Power Amplifiers
with Shutdown
Typical Operating Characteristics (continued)(Bridge-Tied Load, THD+N Bandwidth = 22Hz to 22kHz, CBIAS= 1µF.)
MAX4366/MAX4367/MAX4368
330mW, Ultra-Small, Audio Power Amplifiers
with Shutdown
Pin Description
Detailed DescriptionThe MAX4366/MAX4367/MAX4368 bridged audio
power amplifiers can deliver 330mW into a 32Ωload, or
200mW into a 16Ωload, while operating from a single
5V supply. These devices consist of two high-output-
current op amps configured as a bridge-tied load (BTL)
amplifier (see Functional Diagram). The closed-loop
gain of the input op amp sets the single-ended gain of
the device. Two external resistors set the gain of the
MAX4366 (see Gain-Setting Resistorssection). The
MAX4367/MAX4368 feature internally fixed gains of
2V/V and 3V/V, respectively. The output of the first
amplifier serves as the input to the second amplifier,
which is configured as an inverting unity-gain follower
in all three devices. This results in two outputs, identical
in magnitude, but 180°out of phase.
BIASThe MAX4366/MAX4367/MAX4368 feature an internally
generated common-mode bias voltage of VCC/2 refer-
enced to GND. BIAS provides both click-and-pop sup-
pression and the DC bias level for the audio signal.
BIAS is internally connected to the noninverting input of
one amplifier, and should be connected to the nonin-
verting input of the other amplifier for proper signal
biasing (Typical Application Circuit). Choose the value
of the bypass capacitor as described in the BIAS
Capacitorsection.
ShutdownThe MAX4366/MAX4367/MAX4368 feature a 35µA, low-
power shutdown mode that reduces quiescent current
consumption and extends battery life. Pulling SHDN
high disables the device’s bias circuitry and drives
OUT+, OUT-, and BIAS to GND. Connect SHDN to
GND for normal operation.
Applications Information
Bridge-Tied LoadThe MAX4366/MAX4367/MAX4368 are designed to
drive a load differentially, a configuration referred to as
bridge-tied load (BTL). The BTL configuration (Figure 1)
offers advantages over the single-ended configuration,
where one side of the load is connected to ground.
Driving the load differentially doubles the output volt-
age compared to a single-ended amplifier under similar
conditions. The differential gain of the device is twice
the closed-loop gain of the input amplifier. The effective
gain of the MAX4366 is given by:
Figure 1. Bridge-Tied Load Configuration
