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Analog Devices Inc./Maxim Integrated MAX4335EXT-T
- Part No.:
- MAX4335EXT-T
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 6-TSSOP, SC-88, SOT-363
- Datasheet:
-
MAX4335EXT-T.pdf
- Description:
- IC OPAMP GP 1 CIRCUIT SC70-6
- Quantity:
- Payment:
- Shipping:
Inventory:9,418
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Product details
Overview
The MAX4335EXT-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 a 2.7V to 5.5V single supply, and achieves 0.003% THD at 20kHz into 10kΩ - enabling high-fidelity audio amplification in ultra-compact SC70-6 form factor.
For engineers reviewing the MAX4335EXT-T datasheet, MAX4335EXT-T pinout, MAX4335EXT-T application, or MAX4335EXT-T equivalent, key selection criteria include its shutdown-enabled low-power operation (0.04µA in shutdown), rail-to-rail swing into 32Ω loads, thermal overload protection, PSRR of 90dB, and guaranteed performance across –40°C to +85°C.
Technical Context
The MAX4335EXT-T employs a BiCMOS process with dual NPN/PNP input stage enabling true rail-to-rail common-mode input range extending 0.25V beyond both supply rails. Its output stage delivers symmetrical sourcing/sinking capability up to 50mA while maintaining <400mV headroom to VCC at 2.7V with 32Ω load.
It integrates smart short-circuit protection activating only when IOUT > 110mA and |VOUT − VCC/2| > 1V, preserving full drive capability under normal conditions. Shutdown control (SHDN pin) places the output in high-impedance state and reduces ICC to <0.04µA per amplifier at 5V.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage | 2.7V to 5.5V single supply - supports Li-ion and dual-cell alkaline battery systems without regulation. |
| Output Drive | 50mA continuous into 32Ω - sufficient for direct 32Ω headphone driving without external buffers. |
| Gain-Bandwidth | 5MHz - enables stable unity-gain operation with >70° phase margin and supports audio bandwidth up to 20kHz with margin. |
| THD+N | 0.003% at 20kHz into 10kΩ - meets high-fidelity audio requirements for portable DAC buffering. |
| PSRR | 90dB - eliminates need for pre-regulation in most battery-powered audio signal chains. |
| Input/Output Swing | Rail-to-rail - maximizes dynamic range on low-voltage supplies; output swings within 400mV of rails at 2.7V/32Ω. |
| Shutdown Current | <0.04µA at VCC = 5V - enables ultra-low-power mute during system sleep modes. |
Pinout & Package
The MAX4335EXT-T is housed in a 6-pin SC70 package (0.6mm × 0.6mm × 0.4mm), optimized for space-constrained portable PCB layouts.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (IN+) | Noninverting Input | Differential input node referenced to GND; accepts rail-to-rail common-mode voltage (GND to VCC). |
| 2 (GND) | Ground Reference | Primary return path for supply and signal currents; must be low-impedance connection to system ground plane. |
| 3 (IN−) | Inverting Input | Feedback input node; matched impedance to IN+ minimizes offset error from bias current mismatch. |
| 4 (OUT) | Amplifier Output | Capable of sourcing/sinking 50mA; enters high-impedance state during shutdown. |
| 5 (SHDN) | Shutdown Control | Active-low logic input; drives low to disable amplifier and reduce ICC to <0.04µA. |
| 6 (VCC) | Positive Supply | Single 2.7–5.5V supply input; requires local 0.1µF ceramic + ≥1µF bulk bypassing. |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-Rail I/O | Enables maximum signal swing on 2.7V supply - critical for dynamic range in portable audio. |
| 50mA Output Drive | Directly drives 32Ω headphones without external transistors or transformers. |
| 0.04µA Shutdown Current | Reduces system standby power by >99.9% vs. active mode - extends battery life in always-on audio paths. |
| 90dB PSRR | Rejects noise from noisy DC-DC converters, eliminating need for LDO pre-regulation. |
| Thermal Overload Protection | Automatically disables output and limits ICC to 120µA if junction temperature exceeds +140°C. |
| No Phase Reversal | Prevents output latch-up during input overdrive - ensures robust behavior in transient fault conditions. |
Applications
| 32Ω Headphone Driver | Portable Audio DAC Buffer |
|---|---|
Use Scenario: Driving stereo earbuds or mono headset from a low-voltage portable media player. IC Role / Device Role / Timing Role: Final-stage audio buffer delivering high-current, low-distortion analog output to transducers. Use Value: Delivers 50mA into 32Ω with 0.003% THD at 20kHz and rail-to-rail swing - preserves audio fidelity without external components. | Use Scenario: Isolating and amplifying DAC output in Bluetooth headphones or voice assistant devices. IC Role / Device Role / Timing Role: Low-noise, unity-gain buffer between DAC and headphone load. Use Value: 90dB PSRR rejects switching noise from RF/baseband ICs; 5MHz GBW ensures flat response across full audio band. |
| Wireless PA Control Interface | Hands-Free Car Phone Amplifier |
Use Scenario: Amplifying microphone or speaker signals in compact wireless speaker modules or smart speakers. IC Role / Device Role / Timing Role: Line-level driver for analog audio interface between MCU and Class-D PA. Use Value: Shutdown mode (<0.04µA) enables fast mute during Bluetooth link handshaking or voice activation. | Use Scenario: Full-duplex audio amplification in automotive hands-free kits with limited board space. IC Role / Device Role / Timing Role: Single-supply headphone/speaker driver supporting wide input voltage range (2.7–5.5V). Use Value: Guaranteed operation from –40°C to +85°C and thermal protection ensure reliability in vehicle cabin environments. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar op-amp audio driver applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX4410ETE+ | Higher 110mA output drive; 10MHz GBW; 10-pin µMAX package; no shutdown pin. | Targeted at higher-power 16Ω drivers or dual-channel stereo; lacks integrated mute control. | Select MAX4410ETE+ only if >50mA drive or >5MHz bandwidth is required and shutdown is implemented externally. |
| TPA6138A2RTJR | Integrated stereo headphone driver with I²C control; 55mW/channel into 32Ω; fixed 2.5V bias; no rail-to-rail inputs. | Designed for system-level integration with digital audio controllers; not a drop-in op-amp replacement. | Choose TPA6138A2RTJR for fully integrated, digitally controlled stereo audio paths - not for discrete op-amp circuit reuse. |
Compared with MAX4410ETE+ and TPA6138A2RTJR, the MAX4335EXT-T uniquely balances ultra-low shutdown current (<0.04µA), rail-to-rail I/O, 50mA drive, and SC70-6 footprint - making it optimal for space- and power-constrained mono headphone driver designs where discrete op-amp flexibility is retained.
Availability
The MAX4335EXT-T is available at Aetrix Electronics and suitable for portable audio DAC buffering, 32Ω headphone driver circuits, and hands-free car phone amplifier designs requiring stable component supply and long-term industrial availability.
Supply support for MAX4335EXT-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, automotive, and portable applications.
The MAX4335EXT-T belongs to Maxim's high-output-current rail-to-rail op-amp family, engineered specifically for low-voltage, battery-powered audio signal conditioning where size, power efficiency, and fidelity are co-optimized.
FAQ
What is the operating temperature range for the MAX4335EXT-T?
The MAX4335EXT-T is specified for continuous operation from –40°C to +85°C ambient temperature. This range is validated across all electrical parameters including output drive, PSRR, and THD+N, making it suitable for consumer portable devices and automotive cabin environments where thermal extremes occur.
Does the MAX4335EXT-T support rail-to-rail input and output operation?
Yes, the MAX4335EXT-T supports true rail-to-rail input and output operation. Its input common-mode range extends from GND to VCC, and its output swings within 400mV of both rails under 2.7V/32Ω load conditions - maximizing usable dynamic range on low-voltage supplies.
How does the shutdown feature of the MAX4335EXT-T function?
The MAX4335EXT-T's SHDN pin is an active-low control. When pulled to GND, it disables the amplifier core, reduces quiescent supply current to <0.04µA at 5V, and places the output in a high-impedance state - enabling clean muting without loading downstream circuitry.
Can the MAX4335EXT-T drive a 32Ω load directly without external components?
Yes, the MAX4335EXT-T is explicitly characterized to deliver 50mA into 32Ω loads and is recommended for direct 32Ω headphone driving. Its output stage maintains low distortion (0.003% THD at 20kHz) and rail-to-rail swing under this load, eliminating need for external emitter followers or transformers.
What protection features are integrated into the MAX4335EXT-T?
The MAX4335EXT-T integrates thermal overload protection (disables output above +140°C junction temperature), smart short-circuit protection (limits current to 110mA only when VOUT deviates >1V from mid-rail), and internal input ESD protection with back-to-back diodes and 1kΩ series resistors - ensuring robustness in real-world portable deployments.
MAX4335EXT-T Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Package/Case:
- 6-TSSOP, SC-88, SOT-363
- 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:
- SC-70-6
MAX4335EXT-T FAQ
1.How can I place an order for MAX4335EXT-T through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX4335EXT-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 MAX4335EXT-T reliable?
The price and inventory of MAX4335EXT-T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX4335EXT-T is usually 5 days.
3.What payment methods are accepted for MAX4335EXT-T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX4335EXT-T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX4335EXT-T?
MAX4335EXT-T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX4335EXT-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 MAX4335EXT-T?
For technical support, including MAX4335EXT-T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX4335EXT-T requirements.
6.How does Aetrix verify that MAX4335EXT-T is sourced from the original manufacturer or authorized distributors?
All MAX4335EXT-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 MAX4335EXT-T meets industry standards.
7.What is the process for return or replacement of MAX4335EXT-T?
All MAX4335EXT-T units undergo pre-shipment inspection (PSI). If there is an issue with MAX4335EXT-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 MAX4335EXT-T part is unused and in its original packaging.
Return procedure for MAX4335EXT-T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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