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Analog Devices Inc./Maxim Integrated MAX4476AUT#TG16
- Part No.:
- MAX4476AUT#TG16
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- SOT-23-6
- Datasheet:
-
MAX4476AUT#TG16.pdf
- Description:
- IC OPAMP GP 1 CIRCUIT SOT6
- Quantity:
- Payment:
- Shipping:
Inventory:4,274
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Product details
Overview
MAX4476AUT#TG16 from Maxim Integrated is a single-channel, rail-to-rail output, low-noise, low-distortion operational amplifier optimized for precision signal conditioning in 16-bit ADC/DAC interfaces. It operates from +2.7V to +5.5V, delivers 10MHz gain-bandwidth product, achieves 0.0002% THD+N at 1kHz into 1kΩ, and features 4.5nV/√Hz input voltage-noise density - making it ideal for microphone preamplifiers and medical instrumentation front-ends.
For engineers reviewing the MAX4476AUT#TG16 datasheet, MAX4476AUT#TG16 pinout, MAX4476AUT#TG16 application, or MAX4476AUT#TG16 equivalent, key selection criteria include unity-gain stability, absence of shutdown functionality (distinguishing it from MAX4475/MAX4488), SOT23-6 package compatibility, and guaranteed rail-to-rail output swing down to 1kΩ load across -40°C to +125°C.
Technical Context
The MAX4476AUT#TG16 belongs to the MAX4475–MAX4478 family and is unity-gain stable with a fixed 10MHz gain-bandwidth product. Its BiCMOS process enables ultra-low input bias current (±1pA typ) and high DC accuracy (70µV VOS, 120dB AVOL), supporting precision DC-coupled amplification without phase reversal under overdrive.
Unlike the MAX4475/MAX4488 variants, MAX4476AUT#TG16 lacks a shutdown pin (SHDN), confirming its role as a dedicated single-amplifier channel without power-management logic. Its input common-mode range extends to ground, and output swings within 80mV of rails into 1kΩ - enabling full dynamic range utilization in low-voltage, single-supply systems.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Gain-Bandwidth Product | 10MHz - supports stable unity-gain operation up to 10MHz; suitable for anti-aliasing filters and wideband sensor signal conditioning. |
| THD+N @ 1kHz, 1kΩ | 0.0002% - preserves 16-bit DAC/ADC linearity by minimizing harmonic corruption in audio and instrumentation paths. |
| Input Voltage-Noise Density | 4.5nV/√Hz @ 1kHz - enables high-fidelity amplification of microvolt-level signals from piezoelectric sensors or strain gauges. |
| Input Bias Current | ±1pA (typ) - eliminates significant offset error when buffering high-impedance sources like pH electrodes or photodiode transimpedance nodes. |
| Rail-to-Rail Output Swing | Within 80mV of VDD/VSS into 1kΩ - maximizes usable output voltage range in 3.3V or 5V systems without headroom loss. |
| Supply Voltage Range | +2.7V to +5.5V - supports direct interfacing with Li-ion battery-powered devices and industrial 3.3V/5V rails. |
| Operating Temperature | -40°C to +125°C - qualified for automotive cabin modules, industrial PLC analog I/O, and medical portable equipment. |
Pinout & Package
MAX4476AUT#TG16 is packaged in a 6-pin SOT23 (package code U6F+6), with exposed pad not present - distinct from TDFN variants. Pin 5 is unconnected (N.C.), confirming absence of shutdown functionality.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | OUT | Amplifier output; rail-to-rail capable, drives ≥1kΩ loads while maintaining DC accuracy. |
| 2 | VSS | Negative supply; connect to ground for single-supply operation; reference for input common-mode range. |
| 3 | IN+ | Noninverting input; supports common-mode voltages down to VSS − 0.1V (ground-sensing). |
| 4 | IN− | Inverting input; 10pF input capacitance requires feed-forward compensation if RG||RF > 20kΩ. |
| 5 | N.C. | No connection; internally unconnected - confirms no shutdown control capability. |
| 6 | VDD | Positive supply; bypass with 0.1µF ceramic capacitor near pin for noise immunity. |
Key Features
| Feature | Design Value |
|---|---|
| Unity-Gain Stability | Guaranteed 10MHz GBW at AV = +1V/V - eliminates need for external compensation in buffer configurations. |
| Ground-Sensing Input | Input common-mode range includes VSS (ground) - enables direct interfacing with 0V-referenced sensors without level-shifting. |
| Capacitive-Load Drive | Stable with ≤200pF loads - supports direct driving of ADC sample capacitors or long PCB traces without oscillation. |
| High DC Precision | 70µV max VOS, 120dB large-signal voltage gain - ensures <0.001% gain error in closed-loop gain-of-ten configurations. |
| Low-Power Operation | 2.2mA quiescent current per amplifier at 3V - balances performance and efficiency in always-on sensor nodes. |
Applications
| ADC Buffers | DAC Output Amplifiers |
|---|---|
Use Scenario: Buffering the unbuffered voltage output of a 16-bit DAC (e.g., MAX5541) to drive variable analog loads. IC Role / Device Role / Timing Role: Precision voltage follower with sub-1pA input bias current to prevent DAC code-dependent offset errors. Use Value: Maintains 16-bit monotonicity and integral nonlinearity (INL) by eliminating loading-induced gain drift and thermal EMF errors. | Use Scenario: Driving the analog input of a successive-approximation ADC (e.g., MAX11200) with minimal settling distortion. IC Role / Device Role / Timing Role: Low-noise, fast-settling (2µs to 0.01%) gain stage preceding sampling switch. Use Value: Enables full 24-bit effective resolution by suppressing THD+N below 0.0002% and reducing aperture jitter via low input capacitance. |
| Low-Noise Microphone/Preamplifiers | Strain Gauges/Sensor Amplifiers |
Use Scenario: First-stage amplification of electret condenser microphone (ECM) outputs in voice-controlled IoT edge devices. IC Role / Device Role / Timing Role: High-input-impedance, low-noise transimpedance or voltage amplifier with DC-coupled biasing. Use Value: Achieves >70dB SNR at 1kHz using 4.5nV/√Hz noise floor and rail-to-rail swing to maximize dynamic range into 3.3V ADCs. | Use Scenario: Amplifying mV-level Wheatstone bridge outputs from metal foil strain gauges in industrial load cells. IC Role / Device Role / Timing Role: Instrumentation-grade differential-to-single-ended converter with matched input impedance. Use Value: Delivers <10ppm/°C offset drift and 0.0002% THD+N to preserve gauge linearity and temperature stability over -40°C to +125°C. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar low-noise, rail-to-rail op amp applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX4475AUT+T | Includes SHDN pin; identical GBW, noise, and offset specs; same SOT23-6 package. | Required where system-level power sequencing or standby mode is needed. | Select MAX4475AUT+T only if active shutdown control is mandatory; otherwise MAX4476AUT#TG16 reduces BOM count and layout complexity. |
| OPA333AIDBVR | Zero-drift architecture; 0.1µV/°C drift vs. ±0.3µV/°C for MAX4476; 17nV/√Hz noise vs. 4.5nV/√Hz. | Better for µV-level DC stability; inferior for AC fidelity due to higher noise and 350kHz GBW. | Choose OPA333AIDBVR for precision weigh scales; choose MAX4476AUT#TG16 for audio-grade sensor front-ends requiring bandwidth and low THD+N. |
Compared with MAX4475AUT+T, MAX4476AUT#TG16 removes unnecessary shutdown circuitry to improve PSRR consistency and reduce quiescent current variation; compared with OPA333AIDBVR, it trades zero-drift DC performance for superior AC linearity, noise, and bandwidth - making it optimal for mixed-signal data acquisition rather than pure DC measurement.
Availability
MAX4476AUT#TG16 is available at Aetrix Electronics and suitable for ADC buffers, DAC output stages, and low-noise microphone preamplifiers requiring stable component supply across automotive, industrial, and medical design cycles.
Supply support for MAX4476AUT#TG16 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 MAX4475–MAX4478 family targets precision signal conditioning in space-constrained, low-voltage systems - emphasizing rail-to-rail operation, ultra-low noise, and unity-gain stability without sacrificing DC accuracy or temperature robustness.
FAQ
What is the gain-bandwidth product of the MAX4476AUT#TG16?
The MAX4476AUT#TG16 has a gain-bandwidth product of 10MHz and is unity-gain stable. This specification is confirmed in the AC Electrical Characteristics table of the official datasheet and applies across the full operating temperature range (-40°C to +125°C). The 10MHz GBW enables stable operation in closed-loop gains from +1V/V to +10V/V, with predictable bandwidth roll-off and phase margin exceeding 70° at unity gain.
Does the MAX4476AUT#TG16 include a shutdown pin?
No, the MAX4476AUT#TG16 does not include a shutdown pin. Pin 5 is designated N.C. (No Connection) in the SOT23-6 pinout, distinguishing it from the MAX4475AUT+T and MAX4488AUT+T variants which feature an active SHDN input. This confirms MAX4476AUT#TG16 is intended for always-on, low-latency signal paths where power cycling is not required.
What is the maximum capacitive load the MAX4476AUT#TG16 can drive stably?
The MAX4476AUT#TG16 is specified to drive capacitive loads up to 200pF without sustained oscillation. This value is explicitly stated in the AC Electrical Characteristics table under "Capacitive-Load Stability." For loads exceeding 200pF, external isolation resistance or feed-forward compensation (CZ) is required to maintain phase margin above 70° and prevent peaking or ringing in pulse response.
What is the input voltage-noise density of the MAX4476AUT#TG16 at 1kHz?
The MAX4476AUT#TG16 has an input voltage-noise density of 4.5nV/√Hz at 1kHz, as measured and guaranteed in the datasheet's AC Electrical Characteristics section. This low noise floor is critical for preserving signal integrity in high-resolution sensor interfaces, such as piezoelectric accelerometers or MEMS microphones, where thermal and flicker noise contributions must be minimized.
Is the MAX4476AUT#TG16 suitable for automotive applications?
Yes, the MAX4476AUT#TG16 is rated for operation from -40°C to +125°C and is manufactured in a BiCMOS process qualified for automotive environments. While it does not carry the /V suffix (which denotes AEC-Q100 qualification), its temperature range, supply voltage tolerance (+2.7V to +5.5V), and robust ESD protection align with Tier-2 automotive subsystem requirements such as body control modules and cabin sensor interfaces.
MAX4476AUT#TG16 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Package/Case:
- SOT-23-6
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Amplifier Type:
- General Purpose
- Number of Circuits:
- 1
- Output Type:
- Rail-to-Rail
- Slew Rate:
- 3V/µs
- Gain Bandwidth Product:
- 10 MHz
- -3db Bandwidth:
- -
- Current - Input Bias:
- 1 pA
- Voltage - Input Offset:
- 70 µV
- Current - Supply:
- 2.5mA
- Current - Output / Channel:
- 48 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-6
MAX4476AUT#TG16 FAQ
1.How can I place an order for MAX4476AUT#TG16 through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX4476AUT#TG16 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 MAX4476AUT#TG16 reliable?
The price and inventory of MAX4476AUT#TG16 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX4476AUT#TG16 is usually 5 days.
3.What payment methods are accepted for MAX4476AUT#TG16?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX4476AUT#TG16 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX4476AUT#TG16?
MAX4476AUT#TG16 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX4476AUT#TG16 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 MAX4476AUT#TG16?
For technical support, including MAX4476AUT#TG16 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX4476AUT#TG16 requirements.
6.How does Aetrix verify that MAX4476AUT#TG16 is sourced from the original manufacturer or authorized distributors?
All MAX4476AUT#TG16 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 MAX4476AUT#TG16 meets industry standards.
7.What is the process for return or replacement of MAX4476AUT#TG16?
All MAX4476AUT#TG16 units undergo pre-shipment inspection (PSI). If there is an issue with MAX4476AUT#TG16, 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 MAX4476AUT#TG16 part is unused and in its original packaging.
Return procedure for MAX4476AUT#TG16:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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