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Analog Devices Inc./Maxim Integrated MAX4487AUD+T
- Part No.:
- MAX4487AUD+T
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 14-TSSOP (0.173", 4.40mm Width)
- Datasheet:
-
MAX4487AUD+T.pdf
- Description:
- IC OPAMP GP 4 CIRCUIT 14TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:2,171
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Product details
Overview
MAX4487AUD+T from Maxim Integrated is a quad, rail-to-rail output operational amplifier optimized for single-supply operation from +2.7V to +5.5V, delivering 7MHz gain-bandwidth product, ±0.3mV typical input offset voltage (25°C), and rail-to-rail swing into 2kΩ loads - deployed in infrared receivers, sensor signal conditioning, and electronic ignition modules.
For engineers reviewing the MAX4487AUD+T datasheet, MAX4487AUD+T pinout, MAX4487AUD+T application, or MAX4487AUD+T equivalent, key selection criteria include capacitive-load stability up to 100pF, ground-sensing inputs, no phase reversal on overdrive, -40°C to +125°C operating range, and TSSOP-14 packaging for space-constrained industrial sensing nodes.
Technical Context
The MAX4487AUD+T implements a CMOS-input, rail-to-rail output stage enabling full-swing operation with <50mV headroom to VDD/VSS at 2kΩ load across temperature. Its unity-gain stable architecture supports AV = +1 configurations without external compensation.
It features ground-sensing inputs (VCM down to VSS), 85dB large-signal voltage gain (RL = 2kΩ), and 20V/µs slew rate - enabling fast settling (450ns to 0.01%) and low THD (0.01% at 10kHz, RL = 2kΩ) in precision analog front-ends.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Gain-Bandwidth Product | 7MHz - enables stable unity-gain amplification of signals up to ~1MHz with minimal phase lag. |
| Supply Voltage Range | +2.7V to +5.5V - supports direct interface with Li-ion, 3.3V, and 5V logic rails without level-shifting. |
| Input Offset Voltage (25°C) | ±0.3mV (typ), ±9.0mV (max) - ensures ≤9mV DC error in precision DC-coupled sensor amplifiers. |
| Rail-to-Rail Output Swing | Within 30mV of VDD and 50mV of VSS (RL = 2kΩ) - maximizes dynamic range in single-supply data acquisition. |
| Capacitive Load Stability | Stable with up to 100pF - eliminates need for isolation resistors when driving ADC input caps or long traces. |
| Input Bias Current | ±0.1pA (typ) - preserves high-impedance source integrity in photodiode or thermocouple interfaces. |
| Slew Rate | 20V/µs - supports 10kHz full-scale sine output with <0.01% THD into 2kΩ. |
Pinout & Package
The MAX4487AUD+T is housed in a 14-pin TSSOP package (JEDEC MO-153, 5.0mm × 4.4mm × 1.2mm), optimized for automated assembly and thermal performance in dense PCB layouts.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 5, 9, 13 | IN− (Ch A/B/C/D) | Inverting input for each of four independent op amp channels. |
| 2, 6, 10, 12 | IN+ (Ch A/B/C/D) | Noninverting input for each channel; ground-sensing (VCM = VSS supported). |
| 3, 7, 8, 14 | OUT (Ch A/B/C/D) | Rail-to-rail output capable of sourcing 27mA/sinking 33mA into 2kΩ. |
| 4 | VSS | Negative supply terminal (GND reference); common return for all four amplifiers. |
| 11 | VDD | Positive supply terminal (+2.7V to +5.5V); powers all four amplifier channels. |
Key Features
| Feature | Design Value |
|---|---|
| No Phase Reversal on Overdrive | Prevents latch-up or erroneous output polarity during input overvoltage - critical in zero-crossing detectors. |
| Ground-Sensing Inputs | Common-mode range extends to VSS, enabling direct interface with current-output sensors referenced to ground. |
| 76–85dB AVOL (RL = 2kΩ) | Ensures high closed-loop accuracy in gain-setting networks with standard 1% resistors. |
| 0.01% THD (10kHz, RL = 2kΩ) | Supports clean signal amplification in IR receiver baseband stages and audio preamps. |
| 450ns Settling (0.01%) | Enables use in multiplexed sensor systems requiring rapid channel switching and stable acquisition. |
Applications
| Infrared Receivers for Remote Controls | Sensor Signal Detection |
|---|---|
|
Use Scenario: Amplifying weak, modulated IR photodiode currents in consumer remote control receivers. IC Role / Device Role / Timing Role: Quad-channel transimpedance and AC-coupled gain stage, with one channel dedicated to automatic gain control (AGC) feedback. Use Value: Rail-to-rail output swing and 7MHz bandwidth preserve pulse fidelity of 38kHz carrier-demodulated signals without clipping or phase distortion. |
Use Scenario: Conditioning low-level outputs from thermistors, strain gauges, or MEMS accelerometers in industrial monitoring nodes. IC Role / Device Role / Timing Role: Four independent instrumentation-grade amplifiers providing differential gain, filtering, and buffer stages per sensor channel. Use Value: ±0.3mV input offset and 85dB open-loop gain enable sub-100µV resolution in 16-bit ADC front-ends without calibration. |
| Electronic Ignition Modules | Single-Supply Zero-Crossing Detector |
|
Use Scenario: Amplifying and shaping crankshaft position sensor signals in automotive engine control units (ECUs). IC Role / Device Role / Timing Role: High-speed comparator replacement with hysteresis, using one op amp channel as a precision threshold detector. Use Value: 20V/µs slew rate and 450ns settling ensure accurate timing capture of fast-rising cam/crank edges under wide temperature (-40°C to +125°C). |
Use Scenario: Detecting AC line zero crossings in smart energy meters and solid-state relays using resistive divider inputs. IC Role / Device Role / Timing Role: One op amp configured as a comparator with rail-to-rail output driving microcontroller GPIO interrupt pins. Use Value: No phase reversal on overdrive prevents false triggers during line-voltage transients; ground-sensing inputs simplify biasing from single supply. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar quad rail-to-rail op amp applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TLV2464IDR | Lower GBW (6.4MHz), higher quiescent current (650µA/ch vs. 2.2mA/ch), wider offset range (±3mV max). | Less suitable for high-speed IR demodulation but adequate for slower sensor buffering. | Preferred where ultra-low power (<1mW/ch) is prioritized over speed and precision. |
| AD8604ARUZ | Higher precision (±600µV max VOS), lower noise (12nV/√Hz), but limited capacitive-load drive (30pF) and narrower supply (2.7–5.5V same). | Not recommended for driving ADC input caps >30pF without isolation resistor. | Selected when nanovolt-level offset stability and low noise dominate over capacitive-load robustness. |
Compared with TLV2464IDR and AD8604ARUZ, the MAX4487AUD+T uniquely balances 7MHz bandwidth, 100pF capacitive-load stability, and ±0.3mV typical offset in a quad TSSOP - making it optimal for cost-sensitive, high-reliability industrial signal chains requiring both speed and robust layout tolerance.
Availability
MAX4487AUD+T is available at Aetrix Electronics and suitable for infrared receivers, sensor signal detection, and electronic ignition modules requiring stable component supply across extended temperature ranges and multi-year production cycles.
Supply support for MAX4487AUD+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 industrial, automotive, and communications infrastructure.
The MAX4484/MAX4486/MAX4487 family delivers low-cost, high-performance quad op amps targeting space-constrained, single-supply systems needing rail-to-rail output, wide temperature operation, and capacitive-load resilience.
FAQ
What is the maximum capacitive load the MAX4487AUD+T can drive without oscillation?
The MAX4487AUD+T is unity-gain stable with capacitive loads up to 100pF, as verified in the datasheet's Electrical Characteristics table and Typical Operating Characteristics (Figure 2). This allows direct connection to ADC input capacitors or long PCB traces without external isolation resistors - a key advantage over many general-purpose op amps that require compensation beyond 30pF.
Does the MAX4487AUD+T support true ground-sensing input operation?
Yes, the MAX4487AUD+T supports common-mode input voltages down to VSS (ground), confirmed by the VCM specification "VSS to VDD − 1.3V" at 25°C and "VSS to VDD − 1.4V" over −40°C to +125°C. This enables direct interfacing with current-output sensors, bridge circuits, and other ground-referenced sources without level-shifting circuitry.
What is the typical supply current per amplifier channel in the MAX4487AUD+T?
The MAX4487AUD+T draws 2.2mA per amplifier at VDD = +5.0V and 1.9mA at VDD = +2.7V, as specified in the Electrical Characteristics table. Total quiescent current for all four channels is therefore 8.8mA at 5V - enabling efficient operation in battery-powered portable communicators and remote sensors.
Can the MAX4487AUD+T be used as a comparator in zero-crossing detection circuits?
Yes, the MAX4487AUD+T is frequently used as a comparator in single-supply zero-crossing detectors due to its rail-to-rail output, no phase reversal on overdrive, and fast 450ns settling time. Its 20V/µs slew rate ensures accurate edge timing, and ground-sensing inputs simplify biasing - though external hysteresis is recommended for noise immunity.
What is the guaranteed input offset voltage limit for the MAX4487AUD+T over temperature?
The MAX4487AUD+T guarantees input offset voltage within ±11.0mV over the full −40°C to +125°C operating range, as stated in the "Electrical Characteristics-TA = −40°C to +125°C" table. At 25°C, the limit is tighter: ±9.0mV max, with ±0.3mV typical - supporting high-accuracy DC-coupled amplification in automotive and industrial environments.
MAX4487AUD+T Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Package/Case:
- 14-TSSOP (0.173", 4.40mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Amplifier Type:
- General Purpose
- Number of Circuits:
- 4
- 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 (x4 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:
- 14-TSSOP
MAX4487AUD+T FAQ
1.How can I place an order for MAX4487AUD+T through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX4487AUD+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 MAX4487AUD+T reliable?
The price and inventory of MAX4487AUD+T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX4487AUD+T is usually 5 days.
3.What payment methods are accepted for MAX4487AUD+T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX4487AUD+T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX4487AUD+T?
MAX4487AUD+T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX4487AUD+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 MAX4487AUD+T?
For technical support, including MAX4487AUD+T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX4487AUD+T requirements.
6.How does Aetrix verify that MAX4487AUD+T is sourced from the original manufacturer or authorized distributors?
All MAX4487AUD+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 MAX4487AUD+T meets industry standards.
7.What is the process for return or replacement of MAX4487AUD+T?
All MAX4487AUD+T units undergo pre-shipment inspection (PSI). If there is an issue with MAX4487AUD+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 MAX4487AUD+T part is unused and in its original packaging.
Return procedure for MAX4487AUD+T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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