My Inquiry
My Account
Analog Devices Inc./Maxim Integrated MAX4488AUT
- Part No.:
- MAX4488AUT
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- SOT-23-6
- Datasheet:
-
MAX4488AUT.pdf
- Description:
- IC OPAMP GP 1 CIRCUIT SOT23-6
- Quantity:
- Payment:
- Shipping:
Inventory:364
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
The MAX4488AUT from Maxim Integrated is a single, high-speed, low-noise, low-distortion operational amplifier optimized for precision signal conditioning in demanding analog front-ends. It features 42MHz gain-bandwidth product (stable at AV ≥ +5V/V), ultra-low THD+N (0.0004% at 1kHz, RL = 1kΩ), 4.5nV/√Hz input voltage-noise density, rail-to-rail output swing within 8mV of supplies (10kΩ load), and integrated shutdown mode reducing supply current to 0.01µA - making it ideal for battery-powered medical instrumentation and high-resolution DAC buffering.
For engineers reviewing the MAX4488AUT datasheet, MAX4488AUT pinout, MAX4488AUT application, or MAX4488AUT equivalent, this page delivers verified technical context, exact package mapping (6-pin SOT23), validated pin functions, real-world application constraints (e.g., minimum stable gain = +5V/V), and two confirmed alternative op amps with documented performance trade-offs.
Technical Context
The MAX4488AUT is internally compensated for non-unity-gain operation (AV ≥ +5V/V), delivering 10V/µs slew rate and 1.25MHz full-power bandwidth - distinct from the unity-gain-stable MAX4475–MAX4478 family. Its BiCMOS process enables 1pA typical input bias current and 120dB large-signal voltage gain while maintaining rail-to-rail output drive into 1kΩ loads.
It supports single-supply operation from +2.7V to +5.5V with input common-mode range extending to ground and beyond (VSS − 0.1V), and includes a dedicated SHDN pin that places the output in high-impedance state during shutdown - a feature absent in MAX4489 and most competing decompensated amplifiers.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Gain-Bandwidth Product | 42MHz - enables stable closed-loop gain ≥+5V/V with usable bandwidth up to ~8MHz at AV = +5, critical for anti-aliasing filter design. |
| THD+N | 0.0004% at 1kHz, RL = 1kΩ - ensures <1 LSB error in 16-bit DAC output stages without post-filtering. |
| Input Voltage-Noise Density | 4.5nV/√Hz at 1kHz - preserves SNR in low-level sensor interfaces (e.g., strain gauges, piezoelectric transducers). |
| Supply Current (Normal) | 2.5mA per amplifier at VDD = 5V - balances speed and power for portable instrumentation with active signal chains. |
| Shutdown Current | 0.01µA - reduces system standby power by >250×, enabling microamp-level sleep modes in battery-operated devices. |
| Rail-to-Rail Output Swing | Within 8mV of VDD/VSS at RL = 10kΩ - maximizes dynamic range in 3.3V or lower supply systems without level-shifting. |
| Input Common-Mode Range | VSS − 0.1V to VDD − 1.7V - allows direct interfacing to ground-referenced sensors and ADC references without bias networks. |
Pinout & Package
The MAX4488AUT is housed in a RoHS-compliant, lead-free 6-pin SOT23 package (package code U6F-6, outline 21-0058) with exposed pad option not applicable to this variant. Pin 1 is marked with top-side dot; pin numbering follows standard SOT23 convention (counterclockwise from mark).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (OUT) | Amplifier Output | Push-pull rail-to-rail output capable of ±5mA drive; connects directly to ADC input or DAC load without external buffers. |
| 2 (VSS) | Negative Supply | Ground reference for single-supply operation; must be tied to system GND; exposed paddle (if present) connects here. |
| 3 (IN+) | Noninverting Input | High-impedance (1000GΩ) node; accepts ground-referenced signals; immune to phase reversal on overdrive. |
| 4 (IN−) | Inverting Input | 10pF input capacitance; requires feed-forward compensation (CZ) when RG||RF > 5kΩ to maintain stability at AV = +10. |
| 5 (SHDN) | Shutdown Control | Active-low logic input (VIH = 0.7×VDD); asserts high-impedance output and cuts supply current to 0.01µA. |
| 6 (VDD) | Positive Supply | Accepts +2.7V to +5.5V; requires local 0.1µF ceramic bypass capacitor placed ≤2mm from pin. |
Key Features
| Feature | Design Value |
|---|---|
| 42MHz GBW with gain ≥+5V/V | Enables wideband active filters (e.g., 100kHz Chebyshev) and fast-settling DAC buffers without stability compromises. |
| 0.0004% THD+N @ 1kHz | Preserves fidelity in audio-grade and medical-grade signal paths where harmonic artifacts degrade diagnostic accuracy. |
| 4.5nV/√Hz input noise density | Supports 16-bit+ resolution in low-output-impedance sensor interfaces (e.g., bridge-based load cells) without noise floor penalty. |
| Rail-to-rail output with 1kΩ drive | Maintains DC accuracy while swinging full-scale in 3.3V systems - eliminates need for dual supplies in portable equipment. |
| 0.01µA shutdown current | Permits integration into always-on monitoring nodes where µA-level quiescent power is mandatory for multi-year battery life. |
Applications
| ADC Buffers | DAC Output Amplifiers |
|---|---|
|
Use Scenario: Driving SAR or sigma-delta ADC inputs in portable data loggers with 16-bit resolution and 100ksps sampling. IC Role / Device Role / Timing Role: Precision buffer isolating ADC input from source impedance; provides low-THD, low-noise gain stage before sampling. Use Value: 0.0004% THD+N prevents harmonic folding into Nyquist band; rail-to-rail swing maximizes utilization of ADC's full-scale range. |
Use Scenario: Amplifying unbuffered voltage outputs of precision DACs (e.g., MAX5541) in programmable power supplies. IC Role / Device Role / Timing Role: Output driver with <150pA input bias current to avoid DAC integral nonlinearity (INL) errors. Use Value: 1pA max IBIAS ensures <0.001% gain error in 16-bit DAC applications; 42MHz GBW supports fast settling (<2µs to 0.01%). |
| Low-Noise Microphone/Preamplifiers | Medical Instrumentation |
|
Use Scenario: First-stage amplification of electret microphone outputs in hearing aids and voice-controlled IoT edge nodes. IC Role / Device Role / Timing Role: Low-noise, low-current preamplifier with ground-sensing input for single-supply microphone biasing. Use Value: 4.5nV/√Hz noise density dominates over typical 2kΩ microphone thermal noise; shutdown mode extends battery life between voice triggers. |
Use Scenario: Signal conditioning in portable ECG/EEG front-ends requiring >100dB SNR and clinical-grade linearity. IC Role / Device Role / Timing Role: High-PSRR (>120dB), low-drift amplifier for biopotential sensor interfaces with DC-coupled topology. Use Value: 90dB min CMRR and 120dB open-loop gain ensure rejection of 50/60Hz interference; rail-to-rail output matches ADC reference rails. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar low-noise, high-speed op amp applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| OPA1611AIDBVR | 30MHz GBW, unity-gain stable, 1.1nV/√Hz noise, no shutdown pin | Lacks shutdown mode; superior noise but lower bandwidth limits full-power bandwidth in high-gain stages | Select when lowest possible noise dominates over power gating needs and gain < +5V/V is acceptable |
| ADA4898-1ARZ | 65MHz GBW, unity-gain stable, 0.9nV/√Hz noise, 1.2mA supply current | No shutdown; higher drive capability (±35mA) but higher quiescent current and no ground-sensing input | Prefer for high-current, unity-gain applications like cable drivers where MAX4488AUT's gain restriction is limiting |
Compared with OPA1611AIDBVR and ADA4898-1ARZ, the MAX4488AUT uniquely combines 42MHz bandwidth at AV ≥ +5V/V, sub-µA shutdown, and ground-sensing input - making it the only choice for space-constrained, battery-powered instrumentation requiring both precision gain staging and ultra-low standby power.
Availability
The MAX4488AUT is available at Aetrix Electronics and suitable for medical instrumentation, portable data acquisition, and high-resolution DAC/ADC interface designs requiring stable component supply across extended temperature ranges (−40°C to +125°C) and long production lifecycles.
Supply support for MAX4488AUT 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) is a semiconductor company specializing in high-performance analog, mixed-signal, and power management ICs for industrial, medical, and communications applications.
The MAX4475–MAX4478/MAX4488/MAX4489 family was designed specifically for low-noise, low-distortion signal conditioning in precision data conversion systems - targeting 16-bit+ resolution applications where THD+N and input noise directly limit effective number of bits (ENOB).
FAQ
What is the minimum stable gain for the MAX4488AUT, and why does it matter?
The MAX4488AUT is internally compensated for stable operation only at closed-loop gains of +5V/V or greater. Attempting unity-gain or AV = +2V/V configurations risks oscillation due to insufficient phase margin. This design choice enables its 42MHz GBW and 10V/µs slew rate - unlike unity-gain-stable alternatives. Always verify gain configuration against the "Stable Gain" column in the Selector Guide before layout.
Does the MAX4488AUT support true rail-to-rail input common-mode range?
The MAX4488AUT supports an input common-mode voltage range from VSS − 0.1V to VDD − 1.7V - meaning it senses down to 100mV below ground (enabling true ground-referenced sensor interfaces) but does not extend fully to VDD. Its rail-to-rail designation applies strictly to output swing, not input range. For full rail-to-rail input, consider the MAX4475 series instead.
How does the shutdown mode affect output behavior in the MAX4488AUT?
When SHDN is pulled low, the MAX4488AUT reduces supply current to 0.01µA and forces its output into a high-impedance (Hi-Z) state - disconnecting it electrically from the load. This prevents back-driving of downstream circuitry and eliminates loading effects during sleep. The output does not clamp or short; it floats, so external pull-up/down resistors may be needed depending on system requirements.
Can the MAX4488AUT drive capacitive loads, and what is the maximum stable value?
Yes - the MAX4488AUT can drive capacitive loads up to 200pF without sustained oscillation, as confirmed in the Capacitive-Load Stability specification. For loads >100pF, use feed-forward compensation (CZ) calculated as CZ = 10 × (RF/RG) pF. Uncompensated operation with heavy capacitive loads (e.g., long PCB traces or ADC input capacitance) may degrade phase margin and cause ringing in pulse responses.
What package variants exist for the MAX4488AUT, and which one is documented for this part number?
The MAX4488AUT is exclusively offered in the 6-pin SOT23 package (U6F-6 outline), with top-mark "AAZW". Other variants like MAX4488AUA+ (8-pin µMAX) and MAX4488ATT+T (6-pin TDFN-EP) are separate orderable parts with different pinouts and thermal characteristics. Do not substitute packages - the SOT23 variant has specific thermal resistance (727mW at TA = +70°C) and layout requirements defined in Maxim's land pattern 90-0175.
MAX4488AUT Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Package/Case:
- SOT-23-6
- Packaging:
- Bulk
- Product Status:
- Active
- Amplifier Type:
- General Purpose
- Number of Circuits:
- 1
- Output Type:
- Push-Pull, Rail-to-Rail
- Slew Rate:
- 10V/µs
- Gain Bandwidth Product:
- 42 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-23-6
MAX4488AUT FAQ
1.How can I place an order for MAX4488AUT through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX4488AUT 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 MAX4488AUT reliable?
The price and inventory of MAX4488AUT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX4488AUT is usually 5 days.
3.What payment methods are accepted for MAX4488AUT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX4488AUT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX4488AUT?
MAX4488AUT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX4488AUT 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 MAX4488AUT?
For technical support, including MAX4488AUT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX4488AUT requirements.
6.How does Aetrix verify that MAX4488AUT is sourced from the original manufacturer or authorized distributors?
All MAX4488AUT 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 MAX4488AUT meets industry standards.
7.What is the process for return or replacement of MAX4488AUT?
All MAX4488AUT units undergo pre-shipment inspection (PSI). If there is an issue with MAX4488AUT, 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 MAX4488AUT part is unused and in its original packaging.
Return procedure for MAX4488AUT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
MAX4488AUT Tags
-
LM358DT
STMicroelectronics
-
LM358DR
Texas Instruments
-
LM2904DR
Texas Instruments
-
LM358ADR
Texas Instruments
-
LM2904DGKR
Texas Instruments
-
LM324DR
Texas Instruments
-
MCP6006T-E/OT
Microchip Technology
-
MCP6006UT-E/OT
Microchip Technology
-
LM324PWR
Texas Instruments
-
LM2902PWR
Texas Instruments
-
LM2902DR
Texas Instruments
-
LM358P
Texas Instruments
Tech Hub
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…
An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…
Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…
Jumper cables guide covering safe connection order, red and black clamp placement, final ground connection, cable gauge, length, clamp quality, copper vs CCA cables, jump starter comparison and battery…
