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Analog Devices Inc./Maxim Integrated MAX4336EUT
- Part No.:
- MAX4336EUT
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-TSSOP, 8-MSOP (0.118", 3.00mm Width)
- Datasheet:
-
MAX4336EUT.pdf
- Description:
- IC OPAMP GP 1 CIRCUIT 8UMAX
- Quantity:
- Payment:
- Shipping:
Inventory:2,471
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Product details
Overview
MAX4336EUT from Maxim Integrated is a single-channel rail-to-rail input/output operational amplifier optimized for 32Ω headphone driver applications in portable, battery-powered systems. It delivers 50mA output current, features 5MHz gain-bandwidth product, operates from 2.7V to 5.5V single supply, and includes shutdown mode reducing supply current to 0.04µA per amplifier.
For engineers reviewing the MAX4336EUT datasheet, MAX4336EUT pinout, MAX4336EUT application, or MAX4336EUT equivalent, this page provides verified circuit role (low-voltage audio buffer/driver), package mapping (6-pin SC70), thermal protection behavior, shutdown timing (1µs enable/disable), and real-world THD+noise performance (0.003% at 20kHz into 10kΩ).
Technical Context
The MAX4336EUT uses a BiCMOS process with dual NPN/PNP input stage enabling rail-to-rail common-mode input range extending 0.25V beyond supply rails. Its output stage supports rail-to-rail swing - guaranteed within 400mV of VCC at 32Ω load - and integrates smart short-circuit protection activating only when IOUT > 110mA and |VCC − VOUT| > 1V (sourcing) or VOUT > 1V (sinking).
Shutdown control is implemented via dedicated SHDN pin: logic low disables amplification, forces outputs to high-impedance state, and reduces ICC to <0.04µA (VCC = 5V); logic high enables normal operation. Power-up settling time is 5µs, and capacitive-load stability is maintained up to 200pF without external compensation.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage | 2.7V to 5.5V single supply - enables direct integration with Li-ion/Li-poly battery systems without pre-regulation. |
| Output Current | ±50mA - sufficient to drive 32Ω headphones at 2VP-P with minimal distortion. |
| Gain-Bandwidth | 5MHz - supports full-audio bandwidth (20Hz–20kHz) with stable unity-gain configuration. |
| THD+Noise | 0.003% at 20kHz into 10kΩ - meets high-fidelity portable audio requirements. |
| PSRR | 90dB - eliminates need for separate LDO pre-regulation in noisy digital supply environments. |
| Shutdown Current | <0.04µA - extends battery life during audio pause/sleep states in portable devices. |
| Rail-to-Rail I/O | Input CMVR = GND to VCC; output swing to within 400mV of rails - maximizes dynamic range on low-voltage supplies. |
Pinout & Package
MAX4336EUT is housed in a 6-pin SC70 package (package code: X6S), measuring 2.0mm × 1.25mm × 0.9mm, optimized for space-constrained portable PCB layouts.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (IN+) | Noninverting Input | Differential input node accepting rail-to-rail signals; protected by 1kΩ series resistors and back-to-back diodes. |
| 2 (GND) | Ground Reference | Analog ground return path; must be connected directly to low-impedance system ground plane. |
| 3 (IN−) | Inverting Input | Feedback input node; bias current polarity reverses near VCC/2 due to NPN/PNP input stage switchover. |
| 4 (OUT) | Amplifier Output | High-current output capable of sourcing/sinking 50mA into 32Ω; enters high-Z state during shutdown. |
| 5 (SHDN) | Shutdown Control | Active-low logic input; drives low to enter ultra-low-power mode (ICC < 0.04µA); open or tied to VCC for normal operation. |
| 6 (VCC) | Positive Supply | Single power rail input; requires local 0.1µF ceramic + ≥1µF bulk bypassing for stable audio performance. |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-Rail Input/Output | Enables full dynamic range utilization on 2.7V–5.5V supplies, critical for battery-powered audio fidelity. |
| 50mA Output Drive | Directly drives 32Ω headphones without external boost stages, reducing BOM count and board area. |
| 90dB PSRR | Rejects noise from shared digital power rails, eliminating need for costly pre-regulators in mixed-signal designs. |
| Thermal Overload Protection | Automatically disables output and limits ICC to 120µA when junction temperature exceeds +140°C. |
| Smart Short-Circuit Protection | Only activates above 110mA and voltage thresholds (VOUT > 1V or VCC−VOUT > 1V), preserving peak current capability below fault conditions. |
Applications
| 32Ω Headphone Drivers | Portable/Battery-Powered Instruments |
|---|---|
Use Scenario: Driving stereo earbuds or mono headset in smartphones, MP3 players, and wearables. IC Role / Device Role / Timing Role: Audio line driver buffering DAC output and delivering low-distortion signal to transducer. Use Value: 0.003% THD+noise at 20kHz ensures audible clarity; 50mA drive sustains 2VP-P into 32Ω without clipping. | Use Scenario: Signal conditioning in handheld test equipment, portable medical sensors, and field-deployable data loggers. IC Role / Device Role / Timing Role: Low-noise, rail-to-rail buffer isolating sensitive analog front-end from digital processing sections. Use Value: 90dB PSRR rejects switching noise from microcontroller power domains; shutdown mode extends battery runtime. |
| Hands-Free Car Phones | DAC/ADC Buffers |
Use Scenario: Amplifying microphone and speaker signals in automotive hands-free kits with 12V–5V DC-DC derived rails. IC Role / Device Role / Timing Role: Single-supply audio amplifier interfacing between codec and electret mic/speaker elements. Use Value: Rail-to-rail I/O accommodates wide input/output swing across varying supply voltages; thermal protection prevents latch-up in hot vehicle cabins. | Use Scenario: Buffering high-resolution DAC outputs (e.g., 24-bit audio) or conditioning ADC reference paths in precision measurement systems. IC Role / Device Role / Timing Role: Unity-gain follower minimizing loading effects while preserving signal integrity and DC accuracy. Use Value: ±0.6mV max input offset voltage ensures minimal DC error; 5MHz GBW supports fast settling for multi-channel sampling. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar audio op amp applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX4410ETA+ | Higher 170mA output drive; 10MHz GBW; 8-pin µMAX package; no shutdown pin. | Better suited for driving lower-impedance loads (e.g., 16Ω) or higher-frequency signal chains. | Select MAX4410ETA+ when >50mA drive or wider bandwidth is required; avoid if shutdown functionality or SC70 footprint is mandatory. |
| TPA6138A2RTJR | Integrated stereo headphone driver with 30mW/channel into 32Ω; fixed 2V/V gain; thermal foldback protection. | Targeted specifically for headphone output stage; lacks general-purpose op amp flexibility. | Choose TPA6138A2RTJR for cost-optimized, drop-in headphone solutions; use MAX4336EUT where programmable gain, feedback control, or non-audio buffering is needed. |
Compared with MAX4410ETA+ and TPA6138A2RTJR, the MAX4336EUT uniquely balances ultra-small SC70 footprint, integrated shutdown, rail-to-rail operation, and 50mA drive-making it optimal for space-constrained, battery-sensitive mono audio buffer roles where design flexibility matters.
Availability
MAX4336EUT is available at Aetrix Electronics and suitable for portable audio systems, battery-powered instrumentation, and automotive hands-free interfaces requiring stable component supply, RoHS-compliant packaging, and long-term production continuity.
Supply support for MAX4336EUT includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.
Manufacturer
Maxim Integrated (now part of Analog Devices) designs precision analog, mixed-signal, and power management ICs for demanding industrial, communications, and consumer applications.
The MAX4335–MAX4338 family was engineered specifically for low-voltage, high-output-current audio buffering - prioritizing rail-to-rail swing, low THD, and shutdown efficiency in portable electronics.
FAQ
What is the maximum output current capability of the MAX4336EUT?
The MAX4336EUT delivers ±50mA of continuous output current into 32Ω loads at VCC = 2.7V to 5.5V. It incorporates smart short-circuit protection that activates only when output current exceeds 110mA *and* voltage conditions (VOUT > 1V or VCC − VOUT > 1V) are met - preserving full 50mA capability under normal operation. This makes MAX4336EUT suitable for driving standard 32Ω headphones with headroom for transient peaks.
Does the MAX4336EUT support true rail-to-rail input and output operation?
Yes, the MAX4336EUT supports true rail-to-rail input and output operation. Its input common-mode voltage range extends from GND to VCC, enabled by a dual NPN/PNP input stage. The output swings within 400mV of both rails under full 50mA load into 32Ω, ensuring maximum dynamic range on low-voltage supplies like 2.7V or 3.3V. This behavior is fully specified across the −40°C to +85°C operating temperature range.
How does the shutdown feature work on the MAX4336EUT?
The MAX4336EUT's shutdown feature is controlled by the SHDN pin (Pin 5). Driving SHDN low disables the amplifier, places the output in a high-impedance state, and reduces quiescent supply current to <0.04µA (at VCC = 5V). Pulling SHDN high (or connecting to VCC) enables normal operation. Enable/disable timing is 1µs, and power-up settling occurs within 5µs. The pin accepts standard CMOS logic levels (VIH ≥ 0.7×VCC, VIL ≤ 0.3×VCC).
What is the typical THD+noise performance of the MAX4336EUT at audio frequencies?
The MAX4336EUT achieves 0.003% THD+noise at 20kHz into a 10kΩ load with VCC = 5V, and 0.03% at 10kHz into 32Ω (2VP-P output). These values are measured under standard conditions and reflect its suitability for high-fidelity portable audio. Performance remains stable across temperature (−40°C to +85°C) and supply voltage (2.7V–5.5V), with no phase reversal on overdrive inputs - a key reliability feature for audio signal integrity.
Is the MAX4336EUT stable when driving capacitive loads?
Yes, the MAX4336EUT is stable driving capacitive loads up to 200pF with resistive loads ≥100Ω, as confirmed in the manufacturer's stability region graph. For larger capacitive loads (e.g., 330pF), adding a small isolation resistor (e.g., 39Ω) in series with the output restores stability without degrading audio bandwidth. This robustness simplifies layout in systems with long traces or LCD backlight filtering, where stray capacitance is unavoidable.
MAX4336EUT Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Package/Case:
- 8-TSSOP, 8-MSOP (0.118", 3.00mm Width)
- Packaging:
- Bulk
- Product Status:
- Active
- Amplifier Type:
- General Purpose
- Number of Circuits:
- 1
- Output Type:
- Rail-to-Rail
- Slew Rate:
- 1.8V/µs
- Gain Bandwidth Product:
- 5 MHz
- -3db Bandwidth:
- -
- Current - Input Bias:
- 100 nA
- Voltage - Input Offset:
- 600 µV
- Current - Supply:
- 1.3mA
- Current - Output / Channel:
- 110 mA
- Voltage - Supply Span (Min):
- 2.7 V
- Voltage - Supply Span (Max):
- 5.5 V
- Operating Temperature:
- -40°C ~ 85°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-µMAX
MAX4336EUT FAQ
1.How can I place an order for MAX4336EUT through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX4336EUT on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for MAX4336EUT reliable?
The price and inventory of MAX4336EUT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX4336EUT is usually 5 days.
3.What payment methods are accepted for MAX4336EUT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX4336EUT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX4336EUT?
MAX4336EUT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX4336EUT order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for MAX4336EUT?
For technical support, including MAX4336EUT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX4336EUT requirements.
6.How does Aetrix verify that MAX4336EUT is sourced from the original manufacturer or authorized distributors?
All MAX4336EUT products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that MAX4336EUT meets industry standards.
7.What is the process for return or replacement of MAX4336EUT?
All MAX4336EUT units undergo pre-shipment inspection (PSI). If there is an issue with MAX4336EUT, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The MAX4336EUT part is unused and in its original packaging.
Return procedure for MAX4336EUT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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