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Analog Devices Inc./Maxim Integrated MAX4167ESA-T
- Part No.:
- MAX4167ESA-T
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
MAX4167ESA-T.pdf
- Description:
- IC OPAMP GP 2 CIRCUIT 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:2,553
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Product details
Overview
MAX4167ESA-T from Maxim Integrated is a dual, precision, rail-to-rail input/output operational amplifier optimized for low-voltage, battery-powered audio and signal conditioning applications. It delivers ±80mA output drive per amplifier, operates from +2.7V to +6.5V single supply, features 5MHz gain-bandwidth product, 250µV max input offset voltage (25°C), and rail-to-rail swing within 430mV of VCC at 25Ω load.
For engineers reviewing the MAX4167ESA-T datasheet, MAX4167ESA-T pinout, MAX4167ESA-T application, or MAX4167ESA-T equivalent, key selection criteria include dual-channel high-output-drive capability, shutdown-free operation (no SHDN pin), SO-8 package compatibility, and performance in portable headphone drivers, DAC buffers, and transformer line drivers under 3–5V supply constraints.
Technical Context
The MAX4167ESA-T implements a composite rail-to-rail input stage using parallel NPN and PNP differential pairs, enabling common-mode range from VEE − 0.25V to VCC + 0.25V. Its output stage supports true rail-to-rail swing with <430mV headroom at full 80mA sink/source into 25Ω, and maintains unity-gain stability with capacitive loads up to 250pF.
It lacks shutdown functionality (unlike MAX4168), operates across −40°C to +85°C, draws 1.3mA typical quiescent current per amplifier at 5V, and achieves 120dB open-loop gain (RL = 100kΩ) with 88dB PSRR and 93dB CMRR at 25°C - all specified for dual-amplifier SO-8 configuration without shared bias or thermal coupling effects.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Amplifiers per Package | Dual - enables stereo audio paths or signal+reference channel pairing in one SO-8 footprint. |
| Supply Voltage Range | +2.7V to +6.5V single supply - supports direct Li-ion/Li-poly battery operation without regulation. |
| Output Drive Current | ±80mA min per amplifier - drives 32Ω headphones directly or 25Ω lines without external boost stages. |
| Gain-Bandwidth Product | 5MHz - sufficient for audio bandwidth (20Hz–20kHz) with ≥20dB gain margin at 100kHz. |
| Input Offset Voltage | 250µV max (25°C), 1.0mV max (−40°C to +85°C) - ensures low DC error in precision buffer and sensor interface roles. |
| Rail-to-Rail I/O | Input CMVR: VEE − 0.25V to VCC + 0.25V; Output swing: within 430mV of rails at 25Ω - maximizes dynamic range in low-voltage systems. |
| Quiescent Current | 1.3mA per amplifier (5V) - balances performance and battery life in always-on portable devices. |
Pinout & Package
MAX4167ESA-T is housed in an 8-pin SO (Small Outline) package, pin-compatible with industry-standard SOIC-8 footprints. Thermal performance supports continuous 80mA output per channel with proper PCB copper area.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | OUT1 | Amplifier 1 output - drives load directly; capable of sourcing/sinking ±80mA. |
| 2 | IN1− | Inverting input for Amplifier 1 - accepts feedback network for inverting configurations. |
| 3 | IN1+ | Noninverting input for Amplifier 1 - connects to reference or signal source in noninverting mode. |
| 4 | VEE | Negative supply / ground - return path for both amplifiers; must be low-impedance. |
| 5 | IN2+ | Noninverting input for Amplifier 2 - independent of Amp1; enables dual-channel signal processing. |
| 6 | IN2− | Inverting input for Amplifier 2 - supports separate feedback loop for second amplifier. |
| 7 | OUT2 | Amplifier 2 output - electrically isolated from OUT1; shares VEE and VCC rails. |
| 8 | VCC | Positive supply - powers both amplifiers; requires 0.1µF ceramic + ≥1µF bulk bypassing. |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail input common-mode range | Extends 0.25V beyond supply rails - eliminates level-shifting need for sensors or DACs operating near VEE/VCC. |
| 80mA output drive per amplifier | Drives 32Ω headphones or 25Ω transmission lines directly - removes discrete output transistors or transformers. |
| No phase reversal on overdrive | Maintains predictable polarity during input saturation - critical for protection-critical signal chains and comparator interfaces. |
| Unity-gain stable with ≤250pF load | Eliminates need for isolation resistors in most capacitive-load applications - simplifies layout for ADC drivers and filter interfaces. |
| Low 250µV input offset voltage | Reduces DC error in precision instrumentation buffers - avoids manual trimming or software calibration in portable medical or audio gear. |
Applications
| Portable Headphone Drivers | DAC Output Buffers |
|---|---|
Use Scenario: Driving 16–32Ω stereo headphones from a 3.3V or 5V portable media player or smartphone codec. IC Role / Device Role / Timing Role: Dual op-amp configured as noninverting buffers delivering low-THD, high-current analog output per channel. Use Value: Eliminates external output coupling capacitors via rail-to-rail output swing and DC-coupled design - reduces BOM count and board space. | Use Scenario: Buffering 12–16-bit DAC outputs in battery-powered data loggers or portable test equipment. IC Role / Device Role / Timing Role: Precision voltage follower with low offset and high PSRR - preserves DAC resolution and rejects supply noise. Use Value: 250µV offset and 88dB PSRR ensure <0.5 LSB error at 16-bit full scale with 3.3V supply - meets industrial-grade accuracy requirements. |
| Transformer/Line Drivers | Motor Driver Signal Conditioning |
Use Scenario: Driving balanced/unbalanced audio lines (e.g., 600Ω) in compact audio interfaces or USB-C dock audio subsystems. IC Role / Device Role / Timing Role: High-slew-rate, high-output-current amplifier providing robust line drive with minimal distortion. Use Value: ±80mA drive and 5MHz GBW support 2Vrms signals into 600Ω with <0.02% THD+N at 1kHz - exceeds professional audio line-level specs. | Use Scenario: Conditioning PWM or analog control signals for small brushed DC motors in handheld tools or robotics. IC Role / Device Role / Timing Role: Low-noise, fast-settling amplifier shaping motor enable/control waveforms with precise amplitude and timing. Use Value: 5µs power-up time and no phase reversal prevent motor glitching during startup/shutdown - improves system reliability. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual high-output-drive op amp applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| LMV358IDR | Lower output drive (40mA), lower GBW (1MHz), no rail-to-rail input, higher offset (3.5mV) | Suitable only for low-current, low-frequency buffering - not viable for headphone or line driving | Select MAX4167ESA-T when ≥80mA drive, rail-to-rail I/O, or audio-grade THD+N are required. |
| OPA2340UA | Higher precision (125µV offset), rail-to-rail I/O, but limited output drive (20mA), lower supply range (2.7–5.5V) | Better for sensor signal conditioning; insufficient for 32Ω headphone loads | Choose MAX4167ESA-T where high current delivery is mandatory and OPA2340's precision is secondary to drive strength. |
Compared with LMV358IDR and OPA2340UA, the MAX4167ESA-T uniquely combines dual-channel 80mA drive, rail-to-rail I/O, and 5MHz bandwidth - making it the only option among the three capable of direct 32Ω headphone driving without external components while maintaining audio fidelity.
Availability
MAX4167ESA-T is available at Aetrix Electronics and suitable for portable audio systems, DAC output buffering, and transformer line driving requiring stable component supply, long-term production continuity, and guaranteed −40°C to +85°C operation.
Supply support for MAX4167ESA-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 MAX4165–MAX4169 family was engineered specifically for portable, low-voltage, high-output-current applications - emphasizing rail-to-rail operation, battery efficiency, and audio-grade signal integrity in space-constrained designs.
FAQ
Does MAX4167ESA-T include a shutdown feature?
No, the MAX4167ESA-T does not have a shutdown function. Unlike the MAX4168ESA-T (dual with shutdown), the MAX4167ESA-T omits the SHDN pin entirely. Its pinout consists solely of two independent op-amp channels with no enable/disable control - making it ideal for always-on signal paths where shutdown complexity is unnecessary.
What is the maximum capacitive load the MAX4167ESA-T can drive stably?
According to the official datasheet, the MAX4167ESA-T is unity-gain stable with capacitive loads up to 250pF. This specification applies to both amplifiers independently. For loads exceeding 250pF, an isolation resistor (e.g., 10–39Ω) in series with the output is recommended to maintain phase margin and prevent peaking or oscillation.
Can MAX4167ESA-T operate from a 3.3V supply?
Yes, the MAX4167ESA-T is fully specified for operation from +2.7V to +6.5V single supply, including 3.3V. At 3.3V, it delivers ±80mA output current, maintains rail-to-rail input/output swing, and exhibits 1.2mA typical quiescent current per amplifier - making it well-suited for modern 3.3V portable systems.
Is MAX4167ESA-T pin-compatible with other SO-8 dual op-amps?
The MAX4167ESA-T uses a standard SO-8 pinout (OUT1, IN1−, IN1+, VEE, IN2+, IN2−, OUT2, VCC), matching industry conventions for dual op-amps. However, its high output drive and rail-to-rail specifications differ significantly from generic SO-8 op-amps like LM358 or TL082 - electrical compatibility must be verified per application, especially regarding load current and supply range.
What thermal considerations apply when using MAX4167ESA-T at full 80mA output?
At ±80mA into 25Ω with 5V supply, power dissipation per amplifier approaches 200mW. In the SO-8 package, this requires adequate PCB copper area (≥1 in² exposed pad or internal planes) and ambient temperature ≤+70°C to stay within the 471mW absolute maximum rating. Derating is 5.88mW/°C above +70°C - verify junction temperature using θJA = 170°C/W.
MAX4167ESA-T Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Package/Case:
- 8-SOIC (0.154", 3.90mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Amplifier Type:
- General Purpose
- Number of Circuits:
- 2
- Output Type:
- Rail-to-Rail
- Slew Rate:
- 2V/µs
- Gain Bandwidth Product:
- 5 MHz
- -3db Bandwidth:
- -
- Current - Input Bias:
- 50 nA
- Voltage - Input Offset:
- 350 µV
- Current - Supply:
- 1.3mA (x2 Channels)
- Current - Output / Channel:
- 125 mA
- Voltage - Supply Span (Min):
- 2.7 V
- Voltage - Supply Span (Max):
- 6.5 V
- Operating Temperature:
- -40°C ~ 85°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-SOIC
MAX4167ESA-T FAQ
1.How can I place an order for MAX4167ESA-T through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX4167ESA-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 MAX4167ESA-T reliable?
The price and inventory of MAX4167ESA-T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX4167ESA-T is usually 5 days.
3.What payment methods are accepted for MAX4167ESA-T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX4167ESA-T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX4167ESA-T?
MAX4167ESA-T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX4167ESA-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 MAX4167ESA-T?
For technical support, including MAX4167ESA-T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX4167ESA-T requirements.
6.How does Aetrix verify that MAX4167ESA-T is sourced from the original manufacturer or authorized distributors?
All MAX4167ESA-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 MAX4167ESA-T meets industry standards.
7.What is the process for return or replacement of MAX4167ESA-T?
All MAX4167ESA-T units undergo pre-shipment inspection (PSI). If there is an issue with MAX4167ESA-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 MAX4167ESA-T part is unused and in its original packaging.
Return procedure for MAX4167ESA-T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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