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Analog Devices Inc./Maxim Integrated MAX4480AUK+T
- Part No.:
- MAX4480AUK+T
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- SC-74A, SOT-753
- Datasheet:
-
MAX4480AUK+T.pdf
- Description:
- IC OPAMP GP 1 CIRCUIT SOT23-5
- Quantity:
- Payment:
- Shipping:
Inventory:7,244
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Product details
Overview
The MAX4480AUK+T from Maxim Integrated is a single-channel, rail-to-rail output operational amplifier optimized for low-power, single-supply operation across -40°C to +125°C. It draws only 50μA quiescent current, operates from +2.5V to +5.5V, delivers ±3mA output drive, and maintains unity-gain stability with up to 400pF capacitive load - ideal for sensor signal conditioning in automotive and industrial modules.
For engineers reviewing the MAX4480AUK+T datasheet, MAX4480AUK+T pinout, MAX4480AUK+T application, or MAX4480AUK+T equivalent, key selection criteria include its SOT23-5 package footprint, 105dB open-loop gain at 5kΩ load, 0.005% THD with 100kΩ load, rail-to-rail output swing within 80mV of rails, and guaranteed operation over extended temperature range without shutdown logic.
Technical Context
This op amp uses BiCMOS process technology to achieve ultra-low quiescent current while maintaining robust output drive and capacitive-load stability. Its input stage features picoamp-level bias current (±0.1pA typ), 1000MΩ input resistance, and common-mode range extending from VSS to VDD − 1.3V.
The output stage supports rail-to-rail swing with 80mV high-side and 8mV low-side voltage drop into 5kΩ, enabling full dynamic range utilization in single-supply systems. Gain-bandwidth product is 140kHz, slew rate 80V/ms, and phase margin exceeds 70° at unity gain with 400pF load.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | +2.5V to +5.5V - enables direct interface with Li-ion battery, 3.3V, and 5V logic domains without level shifting. |
| Quiescent Current | 50μA per amplifier - allows continuous operation in always-on sensor nodes with multi-year battery life. |
| Input Offset Voltage | ±1mV (typ), ±5.5mV (max) - ensures <100μV error in precision DC-coupled amplification at room temperature. |
| Open-Loop Gain | 105dB at 5kΩ load - provides >300,000× voltage gain for high-accuracy closed-loop configurations. |
| THD + Noise | 0.005% at 1kHz, 2VP-P, RL = 100kΩ - meets audio-grade signal fidelity requirements in IR receivers and instrumentation front ends. |
| Capacitive Load Stability | Stable up to 400pF - eliminates need for external isolation resistors when driving ADC inputs or long PCB traces. |
| Output Drive | ±3mA sink/source - directly drives 5kΩ loads or multiple CMOS inputs without buffer stages. |
Pinout & Package
MAX4480AUK+T is housed in a RoHS-compliant 5-pin SOT23 package (package code U5+1, outline 21-0057), with 0.95mm pitch and 2.9mm × 1.6mm footprint - compatible with standard SOT23 pick-and-place equipment and reflow profiles.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (IN+) | Noninverting Input | High-impedance (1000MΩ), low-bias-current (±0.1pA) node for precision signal injection. |
| 2 (IN−) | Inverting Input | Differential pair input with matched offset and drift; requires symmetrical layout for best CMRR. |
| 3 (OUT) | Amplifier Output | Rail-to-rail capable stage delivering ±3mA into resistive loads; stable with 400pF capacitive loads. |
| 4 (VDD) | Positive Supply | Accepts +2.5V to +5.5V; requires local 0.1μF ceramic bypass capacitor to ground for noise immunity. |
| 5 (VSS) | Negative Supply / Ground | Reference node for single-supply operation; must be low-impedance connection to system ground plane. |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail output swing | Swings within 80mV of VDD and 8mV of VSS into 5kΩ - maximizes signal dynamic range in 3.3V systems. |
| Ultra-low quiescent current | 50μA per amplifier at +5V - reduces power budget impact in multi-channel sensor arrays. |
| High open-loop gain | 105dB at 5kΩ load - enables accurate gain-setting with standard 1% resistors in transimpedance or difference amplifiers. |
| Low THD + noise | 0.005% at 1kHz, 2VP-P - preserves signal integrity in infrared receiver demodulation and analog front ends. |
| Extended temperature rating | Specified from -40°C to +125°C - qualified for under-hood automotive, engine control, and industrial motor-drive applications. |
Applications
| Single-Supply Zero-Crossing Detectors | Portable Communications |
|---|---|
Use Scenario: Detecting polarity transitions of AC-coupled sensor outputs (e.g., piezoelectric vibration sensors) using comparator-like behavior with hysteresis. IC Role / Device Role / Timing Role: Precision op amp configured as high-gain comparator with rail-to-rail output ensuring clean digital transition at VDD/2 reference. Use Value: Eliminates external level-shifting circuitry; 50μA supply current enables always-on detection in battery-powered condition monitoring units. | Use Scenario: Amplifying weak RF detector outputs or audio codec line-level signals in handheld radios and Bluetooth headsets. IC Role / Device Role / Timing Role: Low-noise, low-distortion gain block operating from single 3.3V supply with minimal board space. Use Value: 0.005% THD and 140kHz GBW support high-fidelity baseband amplification without clipping or phase distortion. |
| Electronic Ignition Modules | Sensor Signal Detection |
Use Scenario: Conditioning crankshaft position sensor signals in automotive engine control units exposed to under-hood thermal stress. IC Role / Device Role / Timing Role: Robust front-end amplifier with 125°C operation, rail-to-rail output, and ESD-hardened inputs. Use Value: Guaranteed performance across full automotive temperature range avoids calibration drift and signal loss during hot-soak conditions. | Use Scenario: Amplifying microvolt-level thermopile or bridge-sensor outputs in industrial temperature or pressure transmitters. IC Role / Device Role / Timing Role: Precision DC-coupled amplifier with ±1mV offset and 1000MΩ input resistance minimizing loading errors. Use Value: High AVOL (105dB) and low IB (±0.1pA) enable sub-0.1% accuracy in 24-bit sigma-delta ADC interfaces. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar single-channel, low-power, rail-to-rail op amp applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| LMV321IDBVR | Higher quiescent current (80μA), lower open-loop gain (90dB), no guaranteed 125°C operation. | Qualified only to +125°C with derated parameters; not AEC-Q200 qualified. | Use where cost is primary constraint and extended temperature operation is not required. |
| MCP6001T-E/OT | Lower supply current (1μA), but reduced output drive (±23mA), higher input offset (±1.5mV), and limited capacitive-load stability (≤100pF). | Optimized for ultra-low-power sleep modes, not continuous high-fidelity signal conditioning. | Select when microamp-level standby current dominates design priority over output drive or THD performance. |
Compared with LMV321IDBVR and MCP6001T-E/OT, the MAX4480AUK+T uniquely balances ultra-low quiescent current (50μA), full rail-to-rail output drive (±3mA), 400pF capacitive-load stability, and guaranteed -40°C to +125°C operation - making it the preferred choice for automotive and industrial sensor interfaces demanding both precision and ruggedness.
Availability
MAX4480AUK+T is available at Aetrix Electronics and suitable for electronic ignition modules, portable communications devices, sensor signal detection circuits, and single-supply zero-crossing detectors requiring stable component supply across automotive and industrial production cycles.
Supply support for MAX4480AUK+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, automotive, and communications applications.
The MAX4480–MAX4483 family was developed to deliver rail-to-rail performance, ultra-low power, and extended temperature capability in compact packages - specifically targeting harsh-environment sensor signal conditioning and portable system front ends.
FAQ
What is the maximum capacitive load the MAX4480AUK+T can drive while remaining stable?
The MAX4480AUK+T is unity-gain stable with capacitive loads up to 400pF, as confirmed in the Electrical Characteristics table and Typical Operating Characteristics (Figure MAX4480 toc19). This eliminates the need for external isolation resistors when interfacing with ADC inputs, long PCB traces, or filtering networks - a key advantage over many general-purpose op amps rated for ≤100pF.
Does the MAX4480AUK+T have a shutdown pin?
No, the MAX4480AUK+T does not include a shutdown function. Shutdown capability is exclusive to the MAX4481 variant (e.g., MAX4481AUK+T), which adds a sixth pin (SHDN) and reduces supply current to 0.5μA max in disabled state. The MAX4480AUK+T is a 5-pin device with fixed operation - verified by its pin configuration diagram and Ordering Information table.
What is the input common-mode voltage range for the MAX4480AUK+T?
The input common-mode voltage range for the MAX4480AUK+T is specified from VSS to VDD − 1.3V at +25°C (and VDD − 1.4V over full temperature range), as stated in the Electrical Characteristics table. This allows the device to accept input signals near ground in single-supply configurations, though it does not support rail-to-rail input - a distinction critical for designing precision sensor interfaces where input signal swing approaches supply limits.
Is the MAX4480AUK+T suitable for automotive applications?
Yes, the MAX4480AUK+T is explicitly specified for operation from -40°C to +125°C and listed in the Selector Guide with "Automotive Temperature Range" qualification. Its BiCMOS process, robust ESD tolerance, and guaranteed parametric performance across this range make it appropriate for engine control, body electronics, and ADAS sensor signal conditioning - consistent with Maxim's automotive-grade product positioning.
What package type and footprint does the MAX4480AUK+T use?
The MAX4480AUK+T uses a 5-pin SOT23 package (package code U5+1, outline 21-0057), measuring 2.9mm × 1.6mm with 0.95mm lead pitch. This matches industry-standard SOT23-5 land patterns and is distinct from the SC70-5 variant (MAX4480AXK+T); the "U" in AUK+T denotes SOT23, confirmed in the Ordering Information table and Package Information section.
MAX4480AUK+T Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Package/Case:
- SC-74A, SOT-753
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Amplifier Type:
- General Purpose
- Number of Circuits:
- 1
- Output Type:
- Rail-to-Rail
- Slew Rate:
- 0.08V/µs
- Gain Bandwidth Product:
- 140 kHz
- -3db Bandwidth:
- -
- Current - Input Bias:
- 0.1 pA
- Voltage - Input Offset:
- 1 mV
- Current - Supply:
- 50µA
- Current - Output / Channel:
- 17 mA
- Voltage - Supply Span (Min):
- 2.5 V
- Voltage - Supply Span (Max):
- 5.5 V
- Operating Temperature:
- -40°C ~ 125°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-23-5
MAX4480AUK+T FAQ
1.How can I place an order for MAX4480AUK+T through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX4480AUK+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 MAX4480AUK+T reliable?
The price and inventory of MAX4480AUK+T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX4480AUK+T is usually 5 days.
3.What payment methods are accepted for MAX4480AUK+T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX4480AUK+T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX4480AUK+T?
MAX4480AUK+T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX4480AUK+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 MAX4480AUK+T?
For technical support, including MAX4480AUK+T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX4480AUK+T requirements.
6.How does Aetrix verify that MAX4480AUK+T is sourced from the original manufacturer or authorized distributors?
All MAX4480AUK+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 MAX4480AUK+T meets industry standards.
7.What is the process for return or replacement of MAX4480AUK+T?
All MAX4480AUK+T units undergo pre-shipment inspection (PSI). If there is an issue with MAX4480AUK+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 MAX4480AUK+T part is unused and in its original packaging.
Return procedure for MAX4480AUK+T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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