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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:15,734
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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 from rails - deployed in portable communicators, sensor signal detection, and electronic ignition modules.
For engineers reviewing the MAX4486AKA+T datasheet, MAX4486AKA+T pinout, MAX4486AKA+T application, or MAX4486AKA+T equivalent, this page delivers verified electrical parameters, package-specific terminal mapping, temperature-rated performance (–40°C to +125°C), capacitive-load stability up to 100pF, and grounded-input operation critical for low-voltage analog front-ends.
Technical Context
The MAX4486AKA+T implements a CMOS input stage with ground-sensing inputs and a rail-to-rail output stage capable of sourcing/sinking ≥27mA/33mA while maintaining phase margin >55° and gain margin >12dB at unity gain. Its architecture supports stable operation with capacitive loads up to 100pF without external compensation.
It operates across –40°C to +125°C with guaranteed performance including 85dB large-signal voltage gain into 2kΩ, 0.01% THD at 10kHz, and 20V/µs slew rate - all under single 2.7V–5.5V supply, eliminating need for split supplies in battery-powered instrumentation.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Gain-Bandwidth Product | 7MHz - enables stable unity-gain operation and supports signal conditioning up to ~1MHz with adequate phase margin. |
| Supply Voltage Range | +2.7V to +5.5V - compatible with Li-ion, 3.3V, and 5V systems without level-shifting circuitry. |
| Input Offset Voltage (Typ) | ±0.3mV - ensures ≤0.6mV initial error in precision DC-coupled amplification paths. |
| Rail-to-Rail Output Swing | Within 50mV of VSS/VDD into 2kΩ - maximizes dynamic range in single-supply ADC driver or comparator interface applications. |
| Capacitive Load Stability | Up to 100pF - allows direct driving of ADC input capacitance or long PCB traces without oscillation. |
| Input Bias Current | ±0.1pA (typ) - preserves high-impedance sensor node accuracy without significant leakage-induced offset. |
| Operating Temperature | –40°C to +125°C - qualified for under-hood automotive, industrial control, and harsh-environment instrumentation. |
Pinout & Package
The MAX4486AKA+T is packaged in an 8-pin SOT23 (K8-5) surface-mount package with exposed pad for thermal enhancement and standard JEDEC-compliant footprint.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | OUTA | Amplifier A output - drives external load with rail-to-rail swing and 27mA sourcing capability. |
| 2 | INA− | Inverting input for Channel A - accepts differential or single-ended signals referenced to ground or mid-supply. |
| 3 | INA+ | Noninverting input for Channel A - high-impedance (1000GΩ) node enabling precision sensor interfacing. |
| 4 | VSS | Negative power supply (ground reference) - must be connected directly to low-impedance ground plane. |
| 5 | INB− | Inverting input for Channel B - electrically isolated from Channel A; supports dual independent signal paths. |
| 6 | INB+ | Noninverting input for Channel B - shares same input stage specs as INA+, including ground-sensing capability. |
| 7 | OUTB | Amplifier B output - identical performance to OUTA; enables dual-channel signal conditioning on one die. |
| 8 | VDD | Positive power supply - bypass with 0.1µF ceramic capacitor to minimize supply noise coupling. |
Key Features
| Feature | Design Value |
|---|---|
| No phase reversal on overdriven inputs | Prevents latch-up or erroneous output states when input common-mode exceeds VSS or VDD − 1.4V. |
| Ground-sensing inputs | Accepts input voltages down to VSS (0V), enabling direct interfacing with 0–VDD sensors without level shifters. |
| Stable with 100pF capacitive load | Eliminates need for isolation resistors when driving ADC inputs or long traces in compact layouts. |
| Low THD (0.01%) into 2kΩ | Preserves signal fidelity in audio preamps, IR receiver baseband stages, and precision instrumentation amplifiers. |
| 85dB AVOL into 2kΩ | Ensures ≤0.02% closed-loop gain error in unity-gain buffers and low-gain configurations. |
Applications
| Single-Supply Zero-Crossing Detector | Sensor Signal Detection |
|---|---|
|
Use Scenario: Detecting polarity transitions of AC-coupled or slowly varying analog signals in battery-powered equipment. IC Role / Device Role / Timing Role: Dual op amp configured as comparator with hysteresis (Channel A) and reference buffer (Channel B). Use Value: Rail-to-rail output swing ensures full logic-level compatibility with MCU GPIOs; ground-sensing inputs enable direct connection to unipolar transducer outputs. |
Use Scenario: Amplifying low-amplitude signals from thermistors, RTDs, or piezoelectric sensors in industrial monitoring nodes. IC Role / Device Role / Timing Role: Precision DC-coupled amplifier with matched dual channels for differential sensing or signal conditioning + reference buffering. Use Value: ±0.3mV input offset and 0.1pA bias current minimize measurement drift and loading errors in high-Z sensor interfaces. |
| Portable Communicators | Electronic Ignition Modules |
|
Use Scenario: Audio line-driver and microphone preamplifier stages in handheld radios and two-way communication devices. IC Role / Device Role / Timing Role: Low-noise (29nV/√Hz), low-THD dual op amp providing gain, filtering, and level-shifting functions. Use Value: 7MHz bandwidth supports wideband audio response; single 3.3V supply simplifies power architecture and reduces component count. |
Use Scenario: Conditioning crankshaft/camshaft position sensor signals and triggering ignition coil drivers in automotive engine control units. IC Role / Device Role / Timing Role: High-temperature-stable dual amplifier used for signal amplification and noise rejection before digital capture. Use Value: Guaranteed operation from –40°C to +125°C and 100pF capacitive-load stability ensure reliability in under-hood environments with EMI-rich wiring harnesses. |
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 |
|---|---|---|---|
| LMV358IDR | Lower GBW (1MHz), higher input offset (±3mV), no guaranteed 125°C operation. | Targeted at cost-sensitive consumer electronics, not automotive or industrial grade. | Select when budget constraints outweigh precision and temperature requirements. |
| MCP6022-I/SN | Higher quiescent current (250µA vs. 2.2mA), lower input bias current (1pA), but only rated to +85°C. | Suitable for low-power sensor nodes where extended temperature range is not required. | Prefer for ultra-low-power designs where thermal derating is acceptable. |
Compared with LMV358IDR and MCP6022-I/SN, the MAX4486AKA+T provides superior high-temperature performance, tighter input offset, and higher bandwidth - making it the optimal choice for automotive-grade signal conditioning and industrial sensor interfaces demanding robustness and precision.
Availability
MAX4486AKA+T is available at Aetrix Electronics and suitable for portable communicators, electronic ignition modules, infrared receivers for remote controls, and sensor signal detection requiring stable component supply across extended 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 industrial, automotive, communications, and computing applications.
The MAX4484/MAX4486/MAX4487 family targets cost-sensitive, space-constrained systems needing reliable rail-to-rail operation and wide temperature support - especially in battery-powered instrumentation and harsh-environment signal conditioning.
FAQ
What is the operating temperature range of the MAX4486AKA+T?
The MAX4486AKA+T is specified from –40°C to +125°C, with guaranteed performance across this full range including input offset voltage, gain-bandwidth, and output swing. This makes the MAX4486AKA+T suitable for under-hood automotive applications, industrial controllers, and outdoor instrumentation where ambient temperatures exceed standard commercial limits.
Does the MAX4486AKA+T support rail-to-rail input operation?
The MAX4486AKA+T features ground-sensing inputs - meaning the common-mode input range extends down to VSS (0V) but only up to VDD − 1.4V - so it does not support true rail-to-rail input. However, its ability to accept signals at ground enables direct interfacing with unipolar sensors and zero-crossing detectors without level-shifting circuitry, which is a key design advantage of the MAX4486AKA+T.
Can the MAX4486AKA+T drive a 100pF capacitive load stably?
Yes, the MAX4486AKA+T is explicitly characterized and guaranteed stable with capacitive loads up to 100pF at unity gain. This specification is validated per the manufacturer's test conditions and applies directly to the MAX4486AKA+T in its 8-pin SOT23 package. It eliminates the need for external isolation resistors when driving ADC inputs or long PCB traces - a confirmed capability of the MAX4486AKA+T.
What is the typical supply current per amplifier in the MAX4486AKA+T?
The MAX4486AKA+T draws 2.2mA per amplifier at VDD = +5.0V and 1.9mA at VDD = +2.7V, measured at TA = +25°C. These values are confirmed in the Electrical Characteristics table and reflect actual quiescent consumption - critical for estimating total system power in dual-channel portable applications using the MAX4486AKA+T.
Is the MAX4486AKA+T pin-compatible with other members of the MAX448x family?
No - the MAX4486AKA+T (dual, 8-pin SOT23) has a different pinout than the single MAX4484 (5-pin SC70/SOT23) and quad MAX4487 (14-pin SO/TSSOP). While functionally related, they are not pin-compatible. The MAX4486AKA+T pin configuration is unique to its dual-channel SOT23 implementation and must be laid out accordingly - a fact confirmed by the Pin Description table in the official MAX4484/MAX4486/MAX4487 datasheet.
MAX4486AKA+T Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Package/Case:
- SOT-23-8
- Packaging:
- Bulk
- 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:
- 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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