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Analog Devices Inc./Maxim Integrated MAX4486AUA+
- Part No.:
- MAX4486AUA+
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-TSSOP, 8-MSOP (0.118", 3.00mm Width)
- Datasheet:
-
MAX4486AUA+.pdf
- Description:
- IC OPAMP GP 2 CIRCUIT 8UMAX
- Quantity:
- Payment:
- Shipping:
Inventory:1,695
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Product details
Overview
The MAX4486AUA+ from Maxim Integrated is a dual, rail-to-rail output operational amplifier optimized for single-supply operation from +2.7V to +5.5V, featuring 7MHz gain-bandwidth product, ±0.3mV typical input offset voltage, and stable operation with up to 100pF capacitive loads - deployed in sensor signal conditioning and portable communicator front-ends.
For engineers reviewing the MAX4486AUA+ datasheet, MAX4486AUA+ pinout, MAX4486AUA+ application, or MAX4486AUA+ equivalent, this page delivers verified electrical specs, μMAX-8 package layout, dual-channel op amp role in low-voltage analog signal chains, and validated alternatives for design continuity.
Technical Context
The MAX4486AUA+ integrates two independent high-speed amplifiers sharing a common VDD and VSS supply, each with ground-sensing inputs and rail-to-rail output swing capable of driving 2kΩ loads within 50mV of either rail. Its unity-gain stability and 55° phase margin ensure robust performance across temperature (−40°C to +125°C) and supply variations.
Designed for low-noise, low-distortion signal processing, it achieves 0.01% THD at 10kHz with 2kΩ load and 29nV/√Hz input voltage noise density, while maintaining <100pA input bias current and >1000GΩ input resistance - enabling precision DC-coupled sensing without external bias networks.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Gain-Bandwidth Product | 7MHz - supports stable closed-loop gain ≥1 with bandwidth up to 7MHz for signal amplification or filtering. |
| Supply Voltage Range | +2.7V to +5.5V - enables direct interface with Li-ion battery, 3.3V logic, and mixed-signal SoCs without level-shifting. |
| Input Offset Voltage (TYP) | ±0.3mV - ensures ≤0.6mV total error in DC-coupled sensor interfaces like thermopile or bridge amplifiers. |
| Rail-to-Rail Output Swing | Within 50mV of VSS/VDD at 2kΩ - maximizes dynamic range in single-supply systems such as portable medical sensors. |
| Capacitive Load Stability | Up to 100pF - allows direct connection to ADC input capacitors or long PCB traces without external isolation resistors. |
| Input Bias Current | ±0.1pA (typ) - eliminates significant voltage error across high-impedance sources (e.g., pH electrodes or photodiodes). |
| Slew Rate | 20V/µs - supports clean 10kHz sine-wave amplification with <0.01% THD into 2kΩ load. |
Pinout & Package
The MAX4486AUA+ is housed in an 8-pin μMAX package (package code U8-1), measuring 3.0mm × 3.0mm × 0.8mm with exposed pad for thermal enhancement and RoHS-compliant lead-free finish.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | OUTA | Amplifier A output - drives external load or next-stage input; rail-to-rail swing supports full supply utilization. |
| 2 | INA− | Inverting input for Channel A - accepts feedback network or inverted signal path; high-impedance (>1000GΩ) minimizes loading. |
| 3 | INA+ | Noninverting input for Channel A - connects to sensor, reference, or signal source; ground-sensing capability allows VCM = 0V operation. |
| 4 | VSS | Negative power supply - tied to system ground; shared by both amplifiers; must be decoupled with 0.1µF ceramic capacitor. |
| 5 | INB− | Inverting input for Channel B - independent of Channel A; enables dual-path signal conditioning without crosstalk (−70dB @ 1MHz). |
| 6 | INB+ | Noninverting input for Channel B - identical functionality to INA+; supports differential pair or separate sensor channels. |
| 7 | OUTB | Amplifier B output - electrically isolated from OUTA; enables simultaneous dual-output configurations (e.g., in-phase/anti-phase drivers). |
| 8 | VDD | Positive power supply - supplies both amplifiers; operates over full 2.7V–5.5V range; PSRR >64dB ensures immunity to supply ripple. |
Key Features
| Feature | Design Value |
|---|---|
| No phase reversal on overdriven inputs | Prevents latch-up or erroneous output transitions when input exceeds common-mode range - critical in zero-crossing detectors. |
| 85dB large-signal voltage gain (2kΩ load) | Ensures accurate closed-loop gain accuracy (<0.2% error) in precision instrumentation amplifier front-ends. |
| 0.01% THD at 10kHz (2kΩ load) | Supports high-fidelity audio preamplification and IR receiver baseband signal recovery without harmonic distortion. |
| Stable with 100pF capacitive load | Eliminates need for output series resistor in ADC driver applications - reduces component count and board space. |
| −40°C to +125°C operating range | Validated for under-hood automotive modules, industrial motor controllers, and outdoor sensor nodes without derating. |
Applications
| Single-Supply Zero-Crossing Detector | Portable Communicator Front-End |
|---|---|
|
Use Scenario: Detecting AC signal polarity transitions in battery-powered remote control receivers using a single 3.3V supply. IC Role / Device Role / Timing Role: Dual op amp configured as comparator (Channel A) and active filter (Channel B) for IR carrier demodulation. Use Value: Rail-to-rail output swing enables full 0–3.3V logic-level output; 7MHz GBW supports >1MHz carrier rejection without phase lag. |
Use Scenario: Amplifying weak microphone signals in handheld two-way radios operating from a 3.7V Li-ion cell. IC Role / Device Role / Timing Role: First-stage preamplifier with adjustable gain and DC-blocking; second channel buffers filtered output to ADC. Use Value: 29nV/√Hz input noise preserves SNR; ±0.3mV VOS minimizes DC offset drift across temperature during field use. |
| Sensor Signal Detection | Electronic Ignition Module Signal Conditioning |
|
Use Scenario: Amplifying millivolt-level outputs from thermocouples or strain gauges in industrial process monitoring equipment. IC Role / Device Role / Timing Role: Instrumentation-grade gain stage with ground-sensing inputs accepting 0V-referenced transducer outputs. Use Value: Input bias current <0.1pA prevents voltage drop across high-Z sensor elements; 1000GΩ RIN maintains signal integrity. |
Use Scenario: Conditioning crankshaft position sensor signals in automotive engine control units with wide ambient temperature swings. IC Role / Device Role / Timing Role: Dual-channel signal conditioner: one channel filters and amplifies variable-reluctance sensor output; second provides reference buffer. Use Value: −40°C to +125°C rating ensures reliability in under-hood environments; no phase reversal prevents false trigger events during voltage transients. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual rail-to-rail op amp applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TLV2462IDR | Lower GBW (6.4MHz), higher VOS (±2mV typ), 1.2mA supply current per amp | Less suitable for high-frequency zero-crossing detection; better for ultra-low-power standby modes | Choose TLV2462IDR if supply current <1.5mA/channel is mandatory and bandwidth ≤6MHz suffices. |
| AD8602ARMZ | Higher precision (±60µV VOS), lower noise (12nV/√Hz), but limited capacitive load drive (20pF) | Preferred for precision sensor bridges; requires external RC isolation for ADC driver use | Choose AD8602ARMZ only when sub-100µV offset and ultra-low noise outweigh stability constraints. |
Compared with TLV2462IDR and AD8602ARMZ, the MAX4486AUA+ uniquely balances 7MHz bandwidth, 100pF capacitive load tolerance, and −40°C to +125°C operation - making it optimal for ruggedized, medium-speed analog signal paths where layout simplicity and thermal robustness are prioritized.
Availability
The MAX4486AUA+ is available at Aetrix Electronics and suitable for portable communicators, electronic ignition modules, infrared receivers, sensor signal detection circuits, and single-supply zero-crossing detector designs requiring stable component supply across extended temperature ranges.
Supply support for MAX4486AUA+ 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 industrial, automotive, communications, and consumer applications.
The MAX4484/MAX4486/MAX4487 family targets cost-sensitive, single-supply systems needing rail-to-rail output swing, wide temperature operation, and robust capacitive load drive - especially in portable and harsh-environment electronics.
FAQ
What is the maximum capacitive load the MAX4486AUA+ can drive without oscillation?
The MAX4486AUA+ is unity-gain stable with capacitive loads up to 100pF, as confirmed in the Electrical Characteristics table and Typical Operating Characteristics (Figure 2). This specification applies across the full −40°C to +125°C temperature range and +2.7V to +5.5V supply voltage. Exceeding 100pF requires external isolation (e.g., series resistor) to maintain phase margin >55°.
Does the MAX4486AUA+ support true ground-sensing input operation?
Yes, the MAX4486AUA+ features ground-sensing inputs, allowing the input common-mode voltage range to extend down to VSS (0V) and up to VDD − 1.3V at +25°C (or VDD − 1.4V over full temperature range). This enables direct interfacing with 0V-referenced sensors like thermocouples or bridge transducers without level-shifting circuitry.
What is the typical input offset voltage for the MAX4486AUA+ at room temperature?
The typical input offset voltage for the MAX4486AUA+ is ±0.3mV at TA = +25°C, with a guaranteed maximum of ±7.0mV over the full −40°C to +125°C operating range. This value is explicitly listed in the "Electrical Characteristics-TA = +25°C" table under the MAX4486 row for parameter VOS.
Can the MAX4486AUA+ operate from a 2.7V supply while maintaining rail-to-rail output swing?
Yes, the MAX4486AUA+ is fully specified for operation from +2.7V to +5.5V. At VDD = +2.7V, its rail-to-rail output swing remains functional - delivering output voltage within 50mV of VSS and VDD when driving a 2kΩ load, as verified in the "Detailed Description" section and "Rail-to-Rail Output Stage" subsection.
Is the MAX4486AUA+ pin-compatible with other devices in the MAX448x family?
No, the MAX4486AUA+ is not pin-compatible with the single-channel MAX4484 or quad-channel MAX4487 due to differing channel counts and pin assignments. However, it shares identical pin functions (e.g., Pin 1 = OUTA, Pin 2 = INA−) with other MAX4486 variants in the same 8-pin μMAX package - including MAX4486ASA (SO-8) and MAX4486AUA+ (μMAX-8).
MAX4486AUA+ Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Package/Case:
- 8-TSSOP, 8-MSOP (0.118", 3.00mm Width)
- Packaging:
- Tube
- Product Status:
- Active
- Amplifier Type:
- General Purpose
- Number of Circuits:
- 2
- Output Type:
- Rail-to-Rail
- Slew Rate:
- 20V/µs
- Gain Bandwidth Product:
- 7 MHz
- -3db Bandwidth:
- -
- Current - Input Bias:
- 0.1 pA
- Voltage - Input Offset:
- 300 µV
- Current - Supply:
- 2.2mA (x2 Channels)
- Current - Output / Channel:
- 33 mA
- Voltage - Supply Span (Min):
- 2.7 V
- Voltage - Supply Span (Max):
- 5.5 V
- Operating Temperature:
- -40°C ~ 125°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-uMAX/uSOP
MAX4486AUA+ FAQ
1.How can I place an order for MAX4486AUA+ through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX4486AUA+ 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 MAX4486AUA+ reliable?
The price and inventory of MAX4486AUA+ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX4486AUA+ is usually 5 days.
3.What payment methods are accepted for MAX4486AUA+?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX4486AUA+ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX4486AUA+?
MAX4486AUA+ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX4486AUA+ 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 MAX4486AUA+?
For technical support, including MAX4486AUA+ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX4486AUA+ requirements.
6.How does Aetrix verify that MAX4486AUA+ is sourced from the original manufacturer or authorized distributors?
All MAX4486AUA+ 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 MAX4486AUA+ meets industry standards.
7.What is the process for return or replacement of MAX4486AUA+?
All MAX4486AUA+ units undergo pre-shipment inspection (PSI). If there is an issue with MAX4486AUA+, 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 MAX4486AUA+ part is unused and in its original packaging.
Return procedure for MAX4486AUA+:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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