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Analog Devices Inc./Maxim Integrated MAX4336EXT-T
- Part No.:
- MAX4336EXT-T
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 6-TSSOP, SC-88, SOT-363
- Datasheet:
-
MAX4336EXT-T.pdf
- Description:
- IC OPAMP GP 1 CIRCUIT SC70-6
- Quantity:
- Payment:
- Shipping:
Inventory:3,696
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Product details
Overview
MAX4336EXT-T 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 - enabling low-power audio output in space-constrained designs.
For engineers reviewing the MAX4336EXT-T datasheet, MAX4336EXT-T pinout, MAX4336EXT-T application, or MAX4336EXT-T equivalent, key selection criteria include its 50mA drive capability into 32Ω, rail-to-rail I/O swing at low supply voltage, ultra-low shutdown current, THD+N of 0.003% at 20kHz (10kΩ load), and thermal overload protection - all in a 6-pin SC70 package.
Technical Context
The MAX4336EXT-T employs a BiCMOS process with dual NPN/PNP input stage enabling true rail-to-rail common-mode input range (GND to VCC) and output swing within 100mV of rails under light load. Its 5MHz GBWP supports wideband audio buffering and DAC output driving without phase reversal on overdrive.
Shutdown control is implemented via dedicated SHDN pin (Pin 5), which places the output in high-impedance state and reduces ICC to <0.04μA at VCC = 5V. PSRR remains ≥90dB across 2.7V–5.5V supply range, eliminating need for pre-regulation in most portable audio systems.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 2.7V to 5.5V single supply - enables direct operation from Li-ion or dual-AA battery sources without regulation. |
| Output Drive Current | ±50mA into 32Ω - sufficient to deliver >150mW into stereo headphones at 2.7V supply. |
| Gain-Bandwidth Product | 5MHz - supports full-audio bandwidth (20Hz–20kHz) with ≥60dB closed-loop gain margin. |
| THD+N @ 20kHz | 0.003% into 10kΩ - preserves signal fidelity in line-level buffer and DAC output stages. |
| Shutdown Supply Current | <0.04μA per amplifier - extends battery life during audio pause/mute states in portable devices. |
| PSRR | 90dB (typ) - rejects supply noise without external LDO, simplifying power architecture. |
| Input/Output Swing | Rail-to-rail - maximizes dynamic range at low supply voltages (e.g., 2.7V), delivering >2.5Vpp into 32Ω. |
Pinout & Package
MAX4336EXT-T is housed in a 6-pin SC70 package (package code X6SN+1, outline 21-0077), measuring 2.0mm × 1.25mm × 0.95mm - suitable for ultra-compact portable PCB layouts.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (IN+) | Noninverting Input | High-impedance node (500kΩ differential) accepting rail-to-rail input signals; bias current polarity switches near VCC/2. |
| 2 (IN−) | Inverting Input | Differential input node with same rail-to-rail common-mode range; matched impedance critical to minimize offset error. |
| 3 (GND) | Ground Reference | Primary return path for supply and signal currents; must be low-impedance connection to system ground plane. |
| 4 (OUT) | Amplifier Output | Capable of sourcing/sinking ±50mA into 32Ω; output impedance ≤0.05Ω ensures minimal gain loss under load. |
| 5 (SHDN) | Shutdown Control | Active-low logic input: <0.3×VCC disables amplifier and forces high-Z output; >0.7×VCC enables normal operation. |
| 6 (VCC) | Positive Supply | Accepts 2.7V–5.5V; requires local 0.1μF ceramic + ≥1μF bulk bypassing to maintain PSRR and stability. |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-Rail Input/Output | Enables full dynamic range utilization at 2.7V supply - output swings within 100mV of GND/VCC into 10kΩ, preserving SNR in low-voltage audio paths. |
| 50mA Output Drive | Delivers >150mW into 32Ω headphones at 2.7V - eliminates need for discrete output transistors or transformer coupling. |
| Ultra-Low Shutdown Current | <0.04μA per amplifier at VCC = 5V - reduces quiescent power by >30,000× vs. active mode, critical for battery runtime in always-on audio subsystems. |
| 90dB PSRR | Rejects switching noise from DC-DC converters without additional filtering - simplifies power delivery network in portable designs. |
| No Phase Reversal on Overdrive | Prevents latch-up or distortion when inputs exceed supply rails - improves robustness in DAC buffer and line-driver configurations. |
| Thermal Overload Protection | Disables output and limits ICC to 120μA when junction temperature exceeds +140°C - prevents permanent damage during sustained high-current operation. |
Applications
| 32Ω Headphone Drivers | Portable/Battery-Powered Instruments |
|---|---|
|
Use Scenario: Driving stereo earbuds or compact headphones directly from a DAC output in smartphones, wearables, or Bluetooth audio receivers. IC Role / Device Role / Timing Role: Single-supply, rail-to-rail op amp configured as unity-gain buffer or fixed-gain amplifier to deliver clean, high-current analog audio. Use Value: Eliminates external coupling capacitors and DC-blocking components due to rail-to-rail I/O, reducing BOM count and PCB area by up to 30%. |
Use Scenario: Signal conditioning and amplification in handheld test equipment, portable medical sensors, or field-deployable data loggers. IC Role / Device Role / Timing Role: Low-noise, high-drive buffer for ADC front-end or sensor interface, operating from unregulated battery sources. Use Value: 50mA drive and 2.7V minimum supply enable direct interfacing with resistive or capacitive sensors without level-shifting circuitry. |
| Wireless PA Control | Transformer/Line Drivers |
|
Use Scenario: Bias control and envelope tracking for Class-D or Class-AB power amplifiers in wireless handsets and IoT gateways. IC Role / Device Role / Timing Role: Precision current source/sink for PA bias adjustment, leveraging rail-to-rail output to cover full control voltage range. Use Value: 0.003% THD+N ensures minimal distortion in feedback loops, improving EVM and spectral purity in RF transmit chains. |
Use Scenario: Driving balanced/unbalanced line outputs (e.g., 600Ω or 10kΩ) in audio codecs, USB-C DACs, or professional audio interfaces. IC Role / Device Role / Timing Role: High-output-current, low-distortion line driver with configurable gain and DC-coupled output capability. Use Value: 5MHz GBWP and 1.8V/μs slew rate support fast transient response for digital audio formats (e.g., DSD, PCM 192kHz), minimizing group delay. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar audio op amp applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX4410ETB+T | Single 6-pin SC70 op amp; 70mA drive, 10MHz GBWP, no shutdown pin; higher quiescent current (2.5mA). | Better for high-fidelity line drivers requiring wider bandwidth; unsuitable where ultra-low shutdown current is mandatory. | Select MAX4410ETB+T when >50mA drive or >5MHz GBWP is required and shutdown functionality is not needed. |
| OPA365AIDBVR | Single SOT23-5 op amp; 70mA drive, 50MHz GBWP, rail-to-rail I/O, no shutdown; higher VOS (±200μV max) and THD+N (0.005% @ 1kHz). | Preferred for precision instrumentation or high-speed signal acquisition; lacks integrated mute/shutdown for portable audio. | Choose OPA365AIDBVR for applications demanding >10MHz bandwidth and lower input offset, but accept higher power and no shutdown. |
Compared with MAX4336EXT-T, MAX4410ETB+T offers higher drive and bandwidth but sacrifices shutdown capability and increases quiescent power; OPA365AIDBVR provides superior speed and precision but lacks integrated power management - making MAX4336EXT-T optimal for battery-sensitive, mono headphone driver implementations.
Availability
MAX4336EXT-T is available at Aetrix Electronics and suitable for portable audio systems, battery-powered instrumentation, and wireless communication modules requiring stable component supply, consistent performance across -40°C to +85°C, and RoHS-compliant packaging.
Supply support for MAX4336EXT-T 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 high-performance analog and mixed-signal ICs for power, sensing, connectivity, and signal processing applications.
The MAX4335–MAX4338 family was engineered specifically for low-voltage, high-output-current audio driver applications - balancing rail-to-rail operation, thermal robustness, and ultra-low-power shutdown in miniature packages.
FAQ
What is the maximum output current capability of the MAX4336EXT-T?
The MAX4336EXT-T delivers ±50mA output current into 32Ω loads at both 2.7V and 5.5V supply voltages, as verified in the DC Electrical Characteristics table under "Output Drive" with conditions ISOURCE/ISINK = 50mA. This enables >150mW output into stereo headphones at minimum supply, supporting portable audio use cases without external boost circuitry.
Does the MAX4336EXT-T support rail-to-rail input and output operation?
Yes, the MAX4336EXT-T features true rail-to-rail input and output stages. Its input common-mode voltage range spans GND to VCC, and output swing reaches within 100mV of both rails into 10kΩ (at 2.7V/5V), and within 500mV into 32Ω - confirmed in the "Output Voltage Swing" section of the datasheet. This maximizes dynamic range in single-supply portable audio designs.
How does the shutdown function operate on the MAX4336EXT-T?
The MAX4336EXT-T enters shutdown mode when Pin 5 (SHDN) is driven below 0.3×VCC, reducing supply current to <0.04μA per amplifier and placing the output in high-impedance state. Normal operation resumes when SHDN rises above 0.7×VCC. Enable/disable timing is specified as ≤1μs, and power-up settling occurs within 5μs - ensuring rapid mute/unmute response in audio playback systems.
What is the typical THD+N performance of the MAX4336EXT-T at audio frequencies?
The MAX4336EXT-T achieves 0.003% THD+N at 20kHz into a 10kΩ load with 5V supply and 2VP-P output, as stated in the Features list and confirmed in Figure 21 of the datasheet. At 1kHz into 32Ω, THD+N is 0.01% (VCC = 2.7V), supporting high-fidelity headphone driver performance across the audible spectrum without external compensation.
Is thermal overload protection integrated into the MAX4336EXT-T?
Yes, the MAX4336EXT-T includes internal thermal overload protection that activates when junction temperature exceeds +140°C. At that point, supply current drops to 120μA per amplifier and outputs enter high-impedance state. Operation resumes automatically once junction temperature falls below +120°C - protecting the device during sustained high-current or high-ambient-temperature conditions.
MAX4336EXT-T Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Package/Case:
- 6-TSSOP, SC-88, SOT-363
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- 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:
- SC-70-6
MAX4336EXT-T FAQ
1.How can I place an order for MAX4336EXT-T through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX4336EXT-T 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 MAX4336EXT-T reliable?
The price and inventory of MAX4336EXT-T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX4336EXT-T is usually 5 days.
3.What payment methods are accepted for MAX4336EXT-T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX4336EXT-T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX4336EXT-T?
MAX4336EXT-T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX4336EXT-T 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 MAX4336EXT-T?
For technical support, including MAX4336EXT-T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX4336EXT-T requirements.
6.How does Aetrix verify that MAX4336EXT-T is sourced from the original manufacturer or authorized distributors?
All MAX4336EXT-T 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 MAX4336EXT-T meets industry standards.
7.What is the process for return or replacement of MAX4336EXT-T?
All MAX4336EXT-T units undergo pre-shipment inspection (PSI). If there is an issue with MAX4336EXT-T, 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 MAX4336EXT-T part is unused and in its original packaging.
Return procedure for MAX4336EXT-T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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