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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:2,288
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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 - enabling low-power audio signal conditioning 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 SC70-6 package footprint, 50mA drive into 32Ω, shutdown-enabled power gating, rail-to-rail swing at low supply voltage, and THD+N of 0.003% at 20kHz into 10kΩ.
Technical Context
The MAX4336EXT+T implements a BiCMOS rail-to-rail input stage using complementary NPN/PNP differential pairs, enabling full common-mode range (GND to VCC) and eliminating phase reversal on overdrive. Its output stage supports ±50mA sourcing/sinking with <400mV headroom to rails under 32Ω load at 2.7V.
It integrates thermal overload protection (trip at +140°C, recovery at +120°C), smart short-circuit protection (110mA current limit activated only when |VOUT – VCC| > 1V or VOUT > 1V), and stable operation with capacitive loads up to 200pF without external compensation.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 2.7V to 5.5V single supply - enables direct integration with Li-ion/Li-poly battery rails and 3.3V/5V system supplies. |
| Output Drive Capability | ±50mA into 32Ω - sufficient to deliver 40mW per channel for stereo headphone drivers without external buffering. |
| Gain-Bandwidth Product | 5MHz - supports wideband audio signal amplification up to ~280kHz full-power bandwidth at 2VP-P. |
| THD+N | 0.003% at 20kHz into 10kΩ - meets high-fidelity audio requirements for line-level and DAC buffer stages. |
| Shutdown Supply Current | <0.04μA per amplifier - allows true zero-power state during audio idle periods in portable devices. |
| PSRR | 90dB (typ) - eliminates need for pre-regulation in noisy digital supply environments like SoC-based handhelds. |
| Input Common-Mode Range | GND to VCC - enables direct interfacing with ground-referenced DAC outputs and single-supply sensor signals. |
Pinout & Package
MAX4336EXT+T is housed in a 6-pin SC70-6 package (package code X6SN+1), measuring 2.0mm × 1.25mm × 0.8mm, with wettable flank leads for automated optical inspection. The compact footprint supports high-density PCB layouts in ultra-portable electronics.
| Pin | Circuit Role | Design Meaning |
|---|---|---|
| 1 | IN− | Inverting input terminal - accepts feedback network for closed-loop gain configuration; requires matched impedance to IN+ to minimize bias-current-induced offset. |
| 2 | GND | Analog ground reference - must be connected to low-impedance system ground plane; separate from digital ground unless star-point bonded. |
| 3 | IN+ | Noninverting input terminal - directly interfaces with DAC output, sensor, or line-level source; rail-to-rail capable from GND to VCC. |
| 4 | OUT | Amplifier output - drives 32Ω headphones or 100Ω–10kΩ loads; capable of ±50mA, with rail-to-rail swing down to 100mV from rails (5V supply, 10kΩ load). |
| 5 | SHDN | Active-low shutdown control - pulled low disables amplifier and places OUT in high-impedance state; logic thresholds are 0.3×VCC (low) and 0.7×VCC (high). |
| 6 | VCC | Positive supply pin - requires local 0.1μF ceramic + ≥1μF bulk bypassing; maximum absolute rating is +6V. |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-Rail Input/Output | Enables full dynamic range utilization with 2.7V supply - input accepts signals from GND to VCC; output swings within 100mV of both rails into 10kΩ. |
| 50mA Output Drive | Directly drives 32Ω headphones at 40mW/channel - eliminates need for discrete output transistors or transformer coupling in portable audio. |
| Ultra-Low Shutdown Current | <0.04μA per amplifier - reduces standby power to negligible levels in battery-operated devices with intermittent audio playback. |
| 90dB PSRR | Rejects ripple and noise from shared system supplies - avoids dedicated LDOs for audio section in cost-sensitive consumer electronics. |
| Thermal & Short-Circuit Protection | Auto-shutdown at +140°C junction temperature and current limiting above 110mA - ensures robustness in unattended portable use cases. |
Applications
| 32Ω Headphone Drivers | Portable Audio DAC Buffers |
|---|---|
|
Use Scenario: Driving stereo earbuds or headphones from a low-voltage DAC in smartphones, wearables, or Bluetooth audio receivers. IC Role / Device Role / Timing Role: Single-supply, rail-to-rail output buffer delivering 40mW into 32Ω while maintaining THD+N < 0.01% at 1kHz. Use Value: Eliminates DC-blocking capacitors and external gain stages - reduces BOM count and PCB area by 30% versus legacy op amp solutions. |
Use Scenario: Buffering high-resolution audio DAC outputs (e.g., 24-bit/192kHz) before analog volume control or headphone jack. IC Role / Device Role / Timing Role: Low-noise, high-slew-rate (1.8V/μs) voltage follower preserving signal integrity across full audio band. Use Value: Delivers 0.003% THD+N at 20kHz into 10kΩ - exceeds CD-quality fidelity requirements without post-DAC filtering. |
| Wireless PA Control Interfaces | Hands-Free Car Phone Amplifiers |
|
Use Scenario: Conditioning control voltage signals for RF power amplifiers in cellular modems or IoT transceivers. IC Role / Device Role / Timing Role: Precision, low-drift buffer with 60dB CMRR and 90dB PSRR - rejects switching noise from adjacent RF sections. Use Value: Maintains accurate PA bias control under varying supply conditions - prevents transmit power drift across battery discharge cycle. |
Use Scenario: Full-duplex audio path in automotive hands-free kits, amplifying microphone signals and driving speaker outputs. IC Role / Device Role / Timing Role: Dual-role amplifier: mic preamp (gain = 100) and speaker driver (gain = 1, 50mA into 8Ω via external resistor network). Use Value: Single IC replaces two discrete op amps - reduces component count and improves channel matching for echo cancellation algorithms. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar rail-to-rail, high-output-current op amp applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX4477AXK+T | Lower output drive (25mA), higher GBWP (10MHz), no shutdown pin - SC70-5 package (no SHDN pin). | Suitable for line-level buffering but not 32Ω headphone drive; lacks power-gating capability for battery life optimization. | Select when higher bandwidth and lower quiescent current (1.2mA) outweigh need for 50mA drive and shutdown control. |
| TLC2272CDR | Higher supply range (4.4V–16V), lower output current (40mA), no rail-to-rail inputs - SOIC-8 package. | Requires dual supply or level-shifting for single-supply 32Ω drive; unsuitable for sub-3V battery operation. | Select only for industrial line-powered audio where 2.7V operation and SC70 size are not required. |
Compared with MAX4336EXT+T, MAX4477AXK+T trades drive strength and shutdown for bandwidth and lower ICC, while TLC2272CDR sacrifices low-voltage operation and rail-to-rail performance for higher voltage tolerance - neither offers drop-in replacement capability due to pinout, supply, or functional mismatches.
Availability
MAX4336EXT+T is available at Aetrix Electronics and suitable for portable audio, battery-powered instrumentation, and hands-free communication systems requiring stable component supply, RoHS-compliant packaging, and guaranteed -40°C to +85°C operation.
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 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 signal conditioning - targeting space-constrained portable devices needing rail-to-rail swing, 50mA drive, and ultra-low shutdown current.
FAQ
What is the maximum continuous output current of the MAX4336EXT+T?
The MAX4336EXT+T is specified to deliver ±50mA continuously into resistive loads such as 32Ω headphones. This is validated across the full operating temperature range (-40°C to +85°C) and supply range (2.7V to 5.5V). Peak currents exceeding 50mA are permitted briefly, but sustained operation above this level may trigger thermal shutdown or exceed package power dissipation limits in the SC70-6 package.
Does the MAX4336EXT+T support true rail-to-rail input and output operation?
Yes, the MAX4336EXT+T supports rail-to-rail input (common-mode range from GND to VCC) and rail-to-rail output (swing within 100mV of both rails into 10kΩ at 5V, and within 500mV at 2.7V into 32Ω). This is achieved via complementary NPN/PNP input stage and a robust output stage designed for low-voltage single-supply audio applications.
How does the shutdown function operate on the MAX4336EXT+T?
The MAX4336EXT+T enters ultra-low-power shutdown mode when the SHDN pin (Pin 5) is driven below 0.3×VCC. In this state, supply current drops to <0.04μA per amplifier, and the output transitions to a high-impedance state. Normal operation resumes when SHDN rises above 0.7×VCC. Enable/disable timing is typically 1μs, with full settling in ≤5μs after power-up.
Can the MAX4336EXT+T drive capacitive loads without oscillation?
Yes, the MAX4336EXT+T is internally compensated for stability with capacitive loads up to 200pF when driving purely resistive loads. For larger capacitive loads (e.g., >200pF), an isolation resistor (e.g., 39Ω) placed in series with the output restores phase margin. This behavior is documented in Figures 8–10 of the datasheet and verified across temperature and supply conditions.
What thermal protection mechanisms are built into the MAX4336EXT+T?
The MAX4336EXT+T incorporates thermal overload protection that activates at +140°C junction temperature, reducing supply current to 120μA and placing the output in high-impedance state. Recovery occurs automatically when junction temperature falls below +120°C. This protects the device during sustained high-power operation in compact enclosures or elevated ambient temperatures.
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:
- 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:
- 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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