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Analog Devices Inc./Maxim Integrated MAX4338EUB-TG05
- Part No.:
- MAX4338EUB-TG05
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 10-TFSOP, 10-MSOP (0.118", 3.00mm Width)
- Datasheet:
-
MAX4338EUB-TG05.pdf
- Description:
- IC OPAMP GP 2 CIRC 10UMAX/USOP
- Quantity:
- Payment:
- Shipping:
Inventory:3,217
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Product details
Overview
MAX4338EUB-TG05 from Maxim Integrated is a dual rail-to-rail input/output operational amplifier optimized for 32Ω headphone driver applications in portable, single-supply systems. It delivers 50mA output current per channel, operates from 2.7V to 5.5V, features 5MHz gain-bandwidth product, and includes independent shutdown/mute control (SHDN1/SHDN2) reducing supply current to <0.04μA per amplifier.
For engineers reviewing the MAX4338EUB-TG05 datasheet, MAX4338EUB-TG05 pinout, MAX4338EUB-TG05 application, or MAX4338EUB-TG05 equivalent, key selection criteria include its 10-pin μMAX package, dual-channel rail-to-rail I/O performance into low-impedance loads, ultra-low shutdown current, thermal overload protection, and compatibility with battery-powered audio interfaces requiring high PSRR (90dB) and low THD (0.003% at 20kHz).
Technical Context
The MAX4338EUB-TG05 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 during overdrive. Its output stage supports ±50mA sourcing/sinking into 32Ω while maintaining rail-to-rail swing - VOH ≤ 400mV below VCC and VOL ≤ 400mV above GND at 5V, RL = 100Ω.
Each amplifier integrates independent shutdown logic with CMOS-compatible SHDN inputs (VIH ≥ 0.7×VCC, VIL ≤ 0.3×VCC), thermal overload protection (trip at +140°C, recovery at +120°C), and smart short-circuit protection limiting output current to 110mA only when (VCC − VOUT) > 1V (sourcing) or VOUT > 1V (sinking).
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 without pre-regulation. |
| Output Drive Capability | ±50mA per channel into 32Ω - sufficient for driving stereo headphones at full volume without external buffers. |
| Gain-Bandwidth Product | 5MHz - supports stable unity-gain operation and preserves audio fidelity up to ~280kHz full-power bandwidth. |
| Power-Supply Rejection Ratio | 90dB (typ) - eliminates need for dedicated LDOs in noisy battery-powered systems; suppresses ripple-induced hum. |
| THD + Noise | 0.003% at 20kHz, RL = 10kΩ - meets high-fidelity audio requirements for DAC buffering and line-level signal conditioning. |
| Shutdown Supply Current | <0.04μA per amplifier at VCC = 5V - extends battery life in always-on portable devices with intermittent audio playback. |
| Operating Temperature | −40°C to +85°C - qualified for industrial and automotive cabin environments where thermal cycling occurs. |
Pinout & Package
MAX4338EUB-TG05 is housed in a 10-pin μMAX package (package code U10+2, outline 21-0061), measuring 3mm × 3mm × 0.8mm with exposed pad for thermal enhancement. Pin 1 is marked by a dot; pin numbering follows standard μMAX top-view convention.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | VCC | Positive supply input - bypass with 0.1μF ceramic + ≥1μF bulk capacitor to minimize PSRR degradation. |
| 2 | OUT1 | Amplifier 1 output - capable of ±50mA drive; high-impedance during SHDN1 = low. |
| 3 | IN2− | Inverting input of amplifier 2 - matched impedance required to minimize offset error from bias current polarity transition. |
| 4 | IN2+ | Noninverting input of amplifier 2 - accepts rail-to-rail common-mode voltage (GND to VCC). |
| 5 | GND | Analog ground reference - connect directly to PCB ground plane; tie exposed pad to GND for thermal performance. |
| 6 | IN1− | Inverting input of amplifier 1 - protected by 1kΩ series resistors and back-to-back diodes against ±1.2V differential overvoltage. |
| 7 | IN1+ | Noninverting input of amplifier 1 - same rail-to-rail input range as IN2+; bias current reverses polarity near VCC/2. |
| 8 | OUT2 | Amplifier 2 output - independently controllable via SHDN2; identical drive capability and thermal protection as OUT1. |
| 9 | SHDN2 | Shutdown enable for amplifier 2 - CMOS-compatible logic input; drives output to high-Z when pulled low. |
| 10 | SHDN1 | Shutdown enable for amplifier 1 - fully independent of SHDN2; allows asymmetric power management per channel. |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-Rail Input/Output | Input common-mode range spans GND to VCC; output swing within 400mV of both rails at 5V/100Ω - maximizes dynamic range in low-voltage systems. |
| Independent Dual Shutdown | Separate SHDN1/SHDN2 pins allow per-channel power gating - critical for mono/stereo mode switching and battery-aware audio subsystems. |
| Thermal Overload Protection | Automatically disables amplifiers and forces outputs to high-Z when junction temperature exceeds +140°C - prevents permanent damage during sustained high-current operation. |
| Smart Short-Circuit Protection | Limits output current to 110mA only under fault conditions (VOUT > 1V sinking / VCC−VOUT > 1V sourcing); permits safe >110mA peak drive during normal transients. |
| High PSRR & Low THD | 90dB PSRR rejects supply noise; 0.003% THD at 20kHz ensures clean audio reproduction without post-filtering or compensation. |
Applications
| 32Ω Headphone Drivers | Portable/Battery-Powered Instruments |
|---|---|
Use Scenario: Driving stereo 32Ω earbuds from a 3.3V or 5V microcontroller-based audio subsystem with integrated DAC. IC Role / Device Role / Timing Role: Dual-channel buffer and level shifter delivering rail-to-rail output swing and 50mA peak current per channel. Use Value: Eliminates need for external DC-blocking capacitors in AC-coupled designs due to true rail-to-rail output; reduces BOM count and PCB area. |
Use Scenario: Signal conditioning in handheld multimeters, portable oscilloscopes, or field-deployable sensor analyzers powered by two AA cells. IC Role / Device Role / Timing Role: Precision gain stage and output driver for analog front-end circuits operating down to 2.7V supply. Use Value: Maintains 5MHz GBW and 90dB PSRR across full 2.7–5.5V range - ensures consistent measurement accuracy despite battery voltage sag. |
| Wireless PA Control | DAC/ADC Buffers |
Use Scenario: Controlling RF power amplifier bias in Bluetooth/Wi-Fi modules where precise analog voltage setpoints must be maintained under varying supply conditions. IC Role / Device Role / Timing Role: High-PSRR, low-drift voltage reference buffer isolating sensitive PA control inputs from noisy digital supplies. Use Value: 90dB PSRR suppresses switching noise from DC-DC converters, preventing AM modulation on RF carrier signals. |
Use Scenario: Buffering high-resolution (16–24-bit) DAC outputs in audio codecs or precision data acquisition systems. IC Role / Device Role / Timing Role: Low-noise, low-THD unity-gain follower preserving signal integrity between DAC and load. Use Value: 26nV/√Hz input voltage noise and 0.003% THD ensure SNR > 100dB remains intact through the analog interface path. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual op-amp with shutdown applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX4410ETE+ | Single-channel, 8-pin TDFN; 60mA drive; 10MHz GBW; no shutdown pin. | Requires two units for stereo; lacks independent shutdown; higher bandwidth but larger quiescent current (2.5mA vs. 1.8mA). | Select when higher speed (>5MHz) is prioritized over power efficiency and dual-channel integration. |
| OPA2350UA | Dual-channel, SO-8; 50mA drive; 38MHz GBW; rail-to-rail I/O; no shutdown function. | Higher bandwidth but significantly higher supply current (4.9mA vs. 1.8mA); no power-gating capability; larger SO-8 footprint. | Select when system-level power management is handled externally and wideband signal integrity dominates design priorities. |
Compared with MAX4410ETE+ and OPA2350UA, the MAX4338EUB-TG05 uniquely combines dual-channel integration, per-amplifier shutdown, ultra-low shutdown current (<0.04μA), and 10-pin μMAX packaging - making it optimal for space-constrained, battery-sensitive stereo audio paths where selective channel disabling improves runtime.
Availability
MAX4338EUB-TG05 is available at Aetrix Electronics and suitable for portable audio systems, battery-powered instrumentation, and wireless communication modules requiring stable component supply, long-term lifecycle support, and RoHS-compliant packaging.
Supply support for MAX4338EUB-TG05 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, interface, sensing, and timing applications in industrial, automotive, and consumer markets.
The MAX4335–MAX4338 family was engineered specifically for low-voltage, high-output-current audio driver applications - emphasizing rail-to-rail operation, shutdown efficiency, and robustness in portable battery-powered systems.
FAQ
What is the maximum continuous output current per channel of the MAX4338EUB-TG05?
The MAX4338EUB-TG05 guarantees ±50mA continuous output current per channel into 32Ω loads at VCC = 2.7V and VCC = 5V, as verified across −40°C to +85°C. It supports brief peaks beyond 50mA (up to 110mA) under smart short-circuit protection, provided (VCC − VOUT) ≤ 1V (sourcing) or VOUT ≤ 1V (sinking).
Does the MAX4338EUB-TG05 require external DC-blocking capacitors when driving headphones?
No - the MAX4338EUB-TG05's rail-to-rail output stage allows direct coupling to 32Ω headphones without DC-blocking capacitors, provided the load is referenced to mid-supply (e.g., VCC/2). This eliminates capacitor-induced low-frequency roll-off and saves board space, though AC-coupling remains valid for ground-referenced loads.
How does the shutdown functionality work on the MAX4338EUB-TG05?
The MAX4338EUB-TG05 features two independent shutdown pins: SHDN1 controls amplifier 1, SHDN2 controls amplifier 2. Pulling either pin low disables its respective amplifier, reducing supply current to <0.04μA and placing the output in high-impedance state. Both pins accept standard CMOS logic levels (VIH ≥ 0.7×VCC, VIL ≤ 0.3×VCC).
What is the thermal protection behavior of the MAX4338EUB-TG05?
When the MAX4338EUB-TG05 junction temperature exceeds +140°C, thermal overload protection activates: supply current drops to 120μA per amplifier and outputs go high-impedance. The device automatically recovers when junction temperature falls below +120°C - no manual reset is required, and operation resumes within microseconds after cooling.
Can the MAX4338EUB-TG05 drive capacitive loads, and what is the stability limit?
Yes - the MAX4338EUB-TG05 is stable driving capacitive loads up to 200pF with resistive loads ≥100Ω. For larger capacitive loads (e.g., 330pF), adding a 39Ω isolation resistor in series with the output restores stability, as confirmed in typical operating characteristics (Figure 8 and Figure 10 of the datasheet).
MAX4338EUB-TG05 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Package/Case:
- 10-TFSOP, 10-MSOP (0.118", 3.00mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Amplifier Type:
- General Purpose
- Number of Circuits:
- 2
- 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 (x2 Channels)
- 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:
- 10-uMAX/uSOP
MAX4338EUB-TG05 FAQ
1.How can I place an order for MAX4338EUB-TG05 through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX4338EUB-TG05 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 MAX4338EUB-TG05 reliable?
The price and inventory of MAX4338EUB-TG05 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX4338EUB-TG05 is usually 5 days.
3.What payment methods are accepted for MAX4338EUB-TG05?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX4338EUB-TG05 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX4338EUB-TG05?
MAX4338EUB-TG05 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX4338EUB-TG05 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 MAX4338EUB-TG05?
For technical support, including MAX4338EUB-TG05 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX4338EUB-TG05 requirements.
6.How does Aetrix verify that MAX4338EUB-TG05 is sourced from the original manufacturer or authorized distributors?
All MAX4338EUB-TG05 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 MAX4338EUB-TG05 meets industry standards.
7.What is the process for return or replacement of MAX4338EUB-TG05?
All MAX4338EUB-TG05 units undergo pre-shipment inspection (PSI). If there is an issue with MAX4338EUB-TG05, 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 MAX4338EUB-TG05 part is unused and in its original packaging.
Return procedure for MAX4338EUB-TG05:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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