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Analog Devices Inc./Maxim Integrated MAX4486AKA-T
- Part No.:
- MAX4486AKA-T
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- SOT-23-8
- Datasheet:
-
MAX4486AKA-T.pdf
- Description:
- IC OPAMP GP 2 CIRCUIT SOT23-8
- Quantity:
- Payment:
- Shipping:
Inventory:3,364
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Product details
Overview
The MAX4486AKA-T 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 drive capability into 2kΩ loads with <50mV rail-to-rail swing at full temperature range (–40°C to +125°C). It serves as a precision signal-conditioning front-end in portable sensor interfaces and low-voltage instrumentation.
For engineers reviewing the MAX4486AKA-T datasheet, MAX4486AKA-T pinout, MAX4486AKA-T application, or MAX4486AKA-T equivalent, this page delivers verified electrical specs, package-validated pin functions, real-world use cases, and technically grounded alternative part comparisons - all specific to the 8-pin SOT23-packaged dual op amp variant.
Technical Context
This dual op amp employs a CMOS input stage enabling ground-sensing inputs and ultra-low input bias current (±0.1pA typ), paired with a rail-to-rail output stage capable of sourcing/sinking ≥27mA while maintaining stability with up to 100pF capacitive loads. Its unity-gain stable architecture supports fast settling (450ns to 0.01%) and low distortion (0.01% THD at 10kHz with 2kΩ load).
Designed for harsh-environment applications, the MAX4486AKA-T operates across –40°C to +125°C with guaranteed performance including 62dB min CMRR and 64dB min PSRR over that full range, and no phase reversal under overdriven input conditions - critical for zero-crossing detection and sensor front-ends where input common-mode extends to VSS.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | +2.7V to +5.5V single supply - enables direct interface with 3.3V and 5V logic without level-shifting. |
| Gain-Bandwidth Product | 7MHz - supports stable closed-loop gain ≥10 at 700kHz or unity-gain buffer operation up to 7MHz. |
| Input Offset Voltage (TA = +25°C) | ±0.3mV (typ), ±7.0mV (max) - ensures ≤7mV DC error in precision DC-coupled amplification paths. |
| Rail-to-Rail Output Swing | Within 50mV of VDD/VSS into 2kΩ - delivers full dynamic range from 0V to 5V supply in battery-powered systems. |
| Capacitive Load Stability | Stable with ≤100pF - eliminates need for external isolation resistors in most PCB trace and filter capacitor scenarios. |
| Slew Rate | 20V/µs - supports clean 10kHz sine-wave output at 2VP-P without slew-induced distortion. |
| THD + Noise (10kHz) | 0.01% at 2kΩ load - meets audio-grade and high-fidelity sensor signal conditioning requirements. |
Pinout & Package
MAX4486AKA-T is packaged in an 8-pin SOT23 (K8-5) surface-mount package, measuring 4.9mm × 6.0mm × 1.75mm with gull-wing leads and RoHS-compliant finish.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | OUTA | Amplifier A output - drives external load directly; rail-to-rail swing supports full-supply utilization. |
| 2 | INA− | Inverting input for Channel A - accepts differential or single-ended signals down to VSS (ground-sensing). |
| 3 | INA+ | Noninverting input for Channel A - high-impedance CMOS node (1000GΩ input resistance) minimizes loading. |
| 4 | VSS | Negative supply rail - referenced to system ground; required for proper biasing of input/output stages. |
| 5 | INB+ | Noninverting input for Channel B - electrically isolated from Channel A; enables dual independent signal paths. |
| 6 | INB− | Inverting input for Channel B - shares same input structure and offset characteristics as Channel A. |
| 7 | OUTB | Amplifier B output - identical performance to OUTA; supports dual-channel signal conditioning on one die. |
| 8 | VDD | Positive supply rail - accepts +2.7V to +5.5V; internal regulation ensures consistent bias across voltage range. |
Key Features
| Feature | Design Value |
|---|---|
| Ground-sensing inputs | Input common-mode range extends to VSS (0V), enabling direct interfacing with sensors referenced to ground. |
| No phase reversal on overdrive | Prevents catastrophic latch-up or false triggering in comparator-like zero-crossing detector configurations. |
| 85dB open-loop gain (AVOL) with 2kΩ load | Ensures ≤0.01% gain error in unity-gain buffers driving moderate-impedance loads. |
| 0.01% THD at 10kHz into 2kΩ | Preserves signal fidelity in analog front-ends for infrared receivers and portable communicators. |
| 450ns settling time to 0.01% | Supports high-speed data acquisition sampling rates >1MHz when used in active filtering or buffering stages. |
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 hysteresis generator (Channel B) with rail-to-rail output enabling clean digital logic-level transitions. Use Value: Eliminates need for external level-shifters or dual supplies; ground-sensing inputs accept IR photodiode signals referenced to system ground. |
Use Scenario: Amplifying weak microphone or RF demodulator outputs in handheld two-way radios operating from 3.3V Li-ion batteries. IC Role / Device Role / Timing Role: Dual-channel signal conditioning: one channel for mic preamp, second for AGC or envelope detection. Use Value: 7MHz bandwidth preserves voice-frequency harmonics; 0.01% THD maintains speech intelligibility; low 2.2mA supply current extends battery life. |
| Sensor Signal Detection | Electronic Ignition Module Signal Conditioning |
|
Use Scenario: Amplifying millivolt-level thermocouple or strain gauge outputs in automotive cabin temperature or pressure sensors. IC Role / Device Role / Timing Role: Precision DC-coupled instrumentation amplifier front-end (with external resistors) leveraging low VOS and high CMRR. Use Value: ±0.3mV typical VOS and 62dB min CMRR over –40°C to +125°C reduce calibration drift and EMI susceptibility. |
Use Scenario: Conditioning crankshaft position sensor signals in engine control units exposed to under-hood temperatures up to +125°C. IC Role / Device Role / Timing Role: High-speed comparator and pulse-shaping buffer for inductive pickup signals prior to microcontroller capture. Use Value: 450ns settling and no phase reversal ensure accurate timing edge detection despite noisy transients and wide temperature swings. |
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 max), 1.2mA supply current per amp | Less suitable for high-speed zero-crossing detection; better for ultra-low-power sensor nodes | Select when lower quiescent current is prioritized over speed and offset precision |
| AD8602ARMZ | Higher GBW (10MHz), lower VOS (±60µV max), 2.4mA supply current, wider temp range (–40°C to +125°C) | Better for precision instrumentation but costs more and lacks guaranteed 100pF capacitive-load stability | Select when sub-mV offset and >7MHz bandwidth are mandatory, and layout allows careful capacitive-load management |
Compared with TLV2462IDR and AD8602ARMZ, the MAX4486AKA-T uniquely balances 7MHz bandwidth, ±0.3mV typical offset, 100pF capacitive-load tolerance, and robust –40°C to +125°C operation - making it optimal for cost-sensitive, high-reliability dual-channel signal conditioning where layout simplicity and thermal stability are critical.
Availability
MAX4486AKA-T is available at Aetrix Electronics and suitable for portable communicators, electronic ignition modules, infrared receivers, and sensor signal detection systems requiring stable component supply across industrial and automotive temperature ranges.
Supply support for MAX4486AKA-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 high-performance analog and mixed-signal ICs for demanding industrial, automotive, and communications applications.
The MAX4484/MAX4486/MAX4487 family targets cost-sensitive, single-supply systems needing rail-to-rail output swing, wide temperature operation, and capacitive-load resilience - especially in portable and harsh-environment electronics.
FAQ
What is the maximum capacitive load the MAX4486AKA-T can drive without external compensation?
The MAX4486AKA-T is unity-gain stable with capacitive loads up to 100pF, as confirmed in its Electrical Characteristics table and Detailed Description section. This specification applies across the full –40°C to +125°C operating range and eliminates the need for series isolation resistors in typical PCB trace and small-filter capacitor applications. Exceeding 100pF may cause peaking or oscillation, requiring external compensation per Figure 3 in the datasheet. The MAX4486AKA-T's internal compensation ensures predictable behavior without user-adjustable components.
Does the MAX4486AKA-T support true rail-to-rail input operation?
No, the MAX4486AKA-T features rail-to-rail *output* swing but only *ground-sensing* inputs - meaning the input common-mode voltage range extends down to VSS (0V) but only up to VDD – 1.3V (typ) at +25°C, and VDD – 1.4V over full temperature. It does not accept signals at or above VDD. This design enables compatibility with sensors referenced to ground while maintaining robustness against input overvoltage. The MAX4486AKA-T's input stage is optimized for single-supply systems where the negative input is near ground, not for full rail-to-rail input voltage coverage.
What is the typical supply current per amplifier in the MAX4486AKA-T at 5.0V supply?
The typical supply current per amplifier in the MAX4486AKA-T is 2.2mA at VDD = +5.0V and TA = +25°C, as specified in the Electrical Characteristics table. At the minimum supply voltage of +2.7V, typical current drops to 1.9mA. This low quiescent current enables efficient operation in battery-powered devices like portable communicators and remote controls, while still delivering 7MHz bandwidth and rail-to-rail output performance. The MAX4486AKA-T maintains stable current draw across its full operating temperature range.
Can the MAX4486AKA-T be used as a comparator in zero-crossing detector circuits?
Yes, the MAX4486AKA-T is explicitly recommended for single-supply zero-crossing detector applications in its official Applications list. Its no-phase-reversal behavior under overdriven inputs prevents false triggering, and rail-to-rail output swing ensures clean TTL- or CMOS-compatible logic-level transitions. When configured with hysteresis (e.g., using Channel B to generate feedback), the MAX4486AKA-T delivers reliable edge detection even with slow-moving or noisy input signals - a key requirement in infrared receiver and motor control feedback systems.
What is the operating temperature range guaranteed for the MAX4486AKA-T?
The MAX4486AKA-T is fully specified and guaranteed over the industrial temperature range of –40°C to +125°C, as stated in both the General Description and Ordering Information sections. All key parameters - including input offset voltage, CMRR, PSRR, output swing, and gain-bandwidth product - are characterized across this range. This makes the MAX4486AKA-T suitable for under-hood automotive electronics, industrial sensors, and other harsh-environment applications where extended thermal reliability is mandatory.
MAX4486AKA-T Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Package/Case:
- SOT-23-8
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- 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:
- SOT-23-8
MAX4486AKA-T FAQ
1.How can I place an order for MAX4486AKA-T through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX4486AKA-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 MAX4486AKA-T reliable?
The price and inventory of MAX4486AKA-T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX4486AKA-T is usually 5 days.
3.What payment methods are accepted for MAX4486AKA-T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX4486AKA-T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX4486AKA-T?
MAX4486AKA-T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX4486AKA-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 MAX4486AKA-T?
For technical support, including MAX4486AKA-T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX4486AKA-T requirements.
6.How does Aetrix verify that MAX4486AKA-T is sourced from the original manufacturer or authorized distributors?
All MAX4486AKA-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 MAX4486AKA-T meets industry standards.
7.What is the process for return or replacement of MAX4486AKA-T?
All MAX4486AKA-T units undergo pre-shipment inspection (PSI). If there is an issue with MAX4486AKA-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 MAX4486AKA-T part is unused and in its original packaging.
Return procedure for MAX4486AKA-T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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