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Analog Devices Inc./Maxim Integrated MAX4488ASA+T
- Part No.:
- MAX4488ASA+T
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
MAX4488ASA+T.pdf
- Description:
- IC OPAMP GP 1 CIRCUIT 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:1,287
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Product details
Overview
MAX4488ASA+T from Maxim Integrated is a single, high-speed, low-noise, low-distortion operational amplifier optimized for precision signal conditioning in 16-bit ADC/DAC interfaces and sensor front-ends. It features 42MHz gain-bandwidth product (AV ≥ +5V/V), 10V/µs slew rate, 0.0005% THD+N at 1kHz with 1kΩ load, 4.5nV/√Hz input voltage-noise density, and rail-to-rail output swing within 80mV of supplies under 1kΩ load.
For engineers reviewing the MAX4488ASA+T datasheet, MAX4488ASA+T pinout, MAX4488ASA+T application, or MAX4488ASA+T equivalent, this page delivers verified electrical specifications, package-specific pin mapping, real-world use cases in medical instrumentation and strain gauge amplification, and validated alternative options for gain-stable, low-noise op amp selection.
Technical Context
The MAX4488ASA+T is internally compensated for stable operation at closed-loop gains of +5V/V or higher, distinguishing it from unity-gain stable variants like the MAX4475. Its BiCMOS process enables ultra-low input bias current (±1pA typ) and high open-loop gain (120dB), supporting DC-accurate filtering and high-impedance source interfacing without significant error.
It integrates a shutdown control (SHDN) pin that reduces quiescent current to 0.01µA and places the output in high-impedance state-critical for power-constrained portable instrumentation. Input common-mode range extends to 0.1V below VSS and up to VDD – 1.7V, enabling ground-sensing capability in single-supply systems down to +2.7V.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Gain-Bandwidth Product | 42MHz at AV ≥ +5V/V - enables stable closed-loop designs up to 100kHz with gain ≥5 while preserving phase margin. |
| Slew Rate | 10V/µs - supports clean 2VP-P output at 1MHz without slewing-induced distortion. |
| THD+N | 0.0005% at 1kHz, 2VP-P, RL = 1kΩ - preserves dynamic range in 16-bit data acquisition systems. |
| Input Voltage-Noise Density | 4.5nV/√Hz at 1kHz - minimizes added noise when amplifying µV-level signals from piezoelectric or bridge sensors. |
| Input Bias Current | ±1pA typical - avoids significant offset error when driving high-impedance sources (>100MΩ) like pH electrodes or photodiode transimpedance nodes. |
| Rail-to-Rail Output Swing | Within 80mV of VDD/VSS at 1kΩ load - maximizes usable output range in low-voltage (3V/5V) systems without headroom loss. |
| Shutdown Current | 0.01µA - enables microamp-level system sleep modes in battery-powered medical or IoT edge devices. |
Pinout & Package
MAX4488ASA+T is supplied in an 8-pin SO (Small Outline) package (package code S8+4), with exposed thermal pad not present in this variant. Pin functions are identical to the SO-8 configuration shown in the MAX4475–MAX4478/MAX4488/MAX4489 datasheet.
| Pin | Circuit Role | Design Meaning |
|---|---|---|
| 1 | OUT | Amplifier output - drives loads down to 1kΩ while maintaining rail-to-rail swing and DC accuracy. |
| 2 | IN− | Inverting input - accepts feedback networks; input capacitance is 10pF, requiring feed-forward compensation (CZ) if RG||RF > 5kΩ. |
| 3 | IN+ | Noninverting input - common-mode range includes ground; no phase reversal on overdrive. |
| 4 | VSS | Negative supply - connect to ground in single-supply operation; EP not present in SO-8. |
| 5 | SHDN | Active-low shutdown control - logic-low (≤0.3×VDD) disables amplifier and forces output high-Z. |
| 6 | N.C. | No connection - not internally bonded; leave unconnected or tie to ground per layout best practice. |
| 7 | VDD | Positive supply - operates from +2.7V to +5.5V; requires 0.1µF ceramic bypass capacitor near pin. |
| 8 | N.C. | No connection - not internally bonded; leave unconnected. |
Key Features
| Feature | Design Value |
|---|---|
| Stable at AV ≥ +5V/V | Enables high-gain, wide-bandwidth configurations (e.g., 5×, 10×) without external compensation components. |
| 42MHz GBW with 10V/µs SR | Supports fast settling (2µs to 0.01%) and full-power bandwidth of 1.25MHz - suitable for pulse amplification and active filter stages. |
| 0.0005% THD+N @ 1kHz | Meets distortion requirements for 16-bit DAC buffering and audio-grade preamplification without post-processing correction. |
| 4.5nV/√Hz input noise | Preserves SNR when amplifying low-level sensor outputs (e.g., strain gauges, thermopiles) without degrading system resolution. |
| Ground-sensing input | Accepts input signals down to VSS − 0.1V - enables direct interface with transducers referenced to system ground. |
Applications
| ADC Buffers | DAC Output Amplifiers |
|---|---|
Use Scenario: Driving the analog input of a 16-bit SAR ADC (e.g., MAX11270) in a portable multimeter. IC Role / Device Role / Timing Role: Buffering high-impedance DAC or sensor output while rejecting noise and preserving linearity. Use Value: 0.0005% THD+N ensures <0.001 LSB harmonic error; rail-to-rail swing maximizes ADC utilization across 3V supply. | Use Scenario: Amplifying the unbuffered voltage output of a 16-bit DAC (e.g., MAX5541) in medical infusion pump control. IC Role / Device Role / Timing Role: Precision gain stage with DC accuracy and low noise for calibrated analog setpoint generation. Use Value: ±1pA input bias current prevents offset drift in high-resistance feedback networks; 120dB open-loop gain ensures <1µV gain error. |
| Low-Noise Microphone/Preamplifiers | Strain Gauges/Sensor Amplifiers |
Use Scenario: First-stage amplification of electret microphone output in hearing aid front-end. IC Role / Device Role / Timing Role: Low-noise, low-distortion preamplifier with gain ≥10V/V before anti-alias filtering. Use Value: 4.5nV/√Hz input noise dominates over microphone self-noise; 42MHz GBW supports flat response up to 20kHz. | Use Scenario: Instrumentation amplifier front-end for quarter-bridge strain gauge in industrial load cell. IC Role / Device Role / Timing Role: Single-ended gain stage with ground-referenced input and rail-to-rail output for ratiometric measurement. Use Value: Input common-mode range including ground allows direct bridge excitation at VDD/2; 0.0005% THD+N maintains bridge linearity under dynamic loading. |
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 |
|---|---|---|---|
| OPA1611AIDR | 30MHz GBW, unity-gain stable, 1.1nV/√Hz noise, no shutdown pin | Lacks SHDN; lower noise but lower bandwidth limits full-power BW to ~0.8MHz | Select when lowest possible noise dominates over shutdown capability and gain ≥5 is not required. |
| ADA4898-1ARZ | 65MHz GBW, unity-gain stable, 1.1nV/√Hz noise, ±1.5mA supply current | Higher quiescent current (1.5mA vs. 2.5mA normal / 0.01µA shutdown); no integrated shutdown control | Select when unity-gain stability and highest speed are prioritized over power cycling and low-noise at 1kHz. |
Compared with OPA1611AIDR and ADA4898-1ARZ, the MAX4488ASA+T uniquely combines 42MHz bandwidth at AV ≥ +5V/V, sub-µA shutdown, and 4.5nV/√Hz noise - making it optimal for battery-powered, gain-fixed, precision signal chains where power gating and mid-frequency noise performance are critical.
Availability
MAX4488ASA+T is available at Aetrix Electronics and suitable for medical instrumentation, industrial sensor interfaces, and portable test equipment requiring stable component supply, long-term lifecycle support, and RoHS-compliant packaging.
Supply support for MAX4488ASA+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, medical, and automotive applications.
The MAX4475–MAX4478/MAX4488/MAX4489 family was engineered specifically for high-fidelity signal conditioning in 16-bit data conversion systems, emphasizing low THD+N, low input noise, rail-to-rail operation, and robust input/output voltage ranges.
FAQ
What is the minimum recommended supply voltage for reliable operation of the MAX4488ASA+T?
The MAX4488ASA+T is specified to operate reliably from +2.7V to +5.5V. At 2.7V, it maintains full rail-to-rail output swing, 42MHz GBW, and 0.0005% THD+N performance per datasheet conditions. Operation below 2.7V is not guaranteed and may degrade slew rate, noise, and output drive capability.
Does the MAX4488ASA+T require external compensation for AV = +5V/V operation?
No. The MAX4488ASA+T is internally compensated for stable operation at closed-loop gains of +5V/V or greater. External compensation (e.g., feed-forward capacitor CZ) is only needed if using nonstandard gain configurations or driving capacitive loads >200pF - not required for standard AV = +5V/V with resistive loads ≤1kΩ.
Can the MAX4488ASA+T drive a 500Ω load while maintaining rail-to-rail output swing?
No. The MAX4488ASA+T guarantees rail-to-rail output swing within 80mV of VDD/VSS only for loads ≥1kΩ. At 500Ω, output swing degrades to within 100–300mV of the rails (per datasheet Table "Output Voltage Swing"), and large-signal voltage gain drops to 85–110dB - sufficient for many applications but not full rail utilization.
Is the shutdown function of the MAX4488ASA+T compatible with 1.8V logic control signals?
No. The SHDN pin threshold is defined relative to VDD: VIH ≥ 0.7×VDD and VIL ≤ 0.3×VDD. With VDD = 5V, VIH ≥ 3.5V; with VDD = 2.7V, VIH ≥ 1.89V. A 1.8V logic high is insufficient to guarantee activation - level-shifting or VDD-sourced control is required.
What is the maximum capacitive load the MAX4488ASA+T can drive without oscillation?
The MAX4488ASA+T is stable driving capacitive loads up to 200pF with no sustained oscillations, as confirmed in the datasheet's "Capacitive-Load Stability" specification. For loads >200pF, isolation resistance (e.g., 10–50Ω series resistor at output) or feedback network adjustment is required to maintain phase margin.
MAX4488ASA+T Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Package/Case:
- 8-SOIC (0.154", 3.90mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Amplifier Type:
- General Purpose
- Number of Circuits:
- 1
- Output Type:
- 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:
- 8-SOIC
MAX4488ASA+T FAQ
1.How can I place an order for MAX4488ASA+T through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX4488ASA+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 MAX4488ASA+T reliable?
The price and inventory of MAX4488ASA+T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX4488ASA+T is usually 5 days.
3.What payment methods are accepted for MAX4488ASA+T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX4488ASA+T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX4488ASA+T?
MAX4488ASA+T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX4488ASA+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 MAX4488ASA+T?
For technical support, including MAX4488ASA+T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX4488ASA+T requirements.
6.How does Aetrix verify that MAX4488ASA+T is sourced from the original manufacturer or authorized distributors?
All MAX4488ASA+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 MAX4488ASA+T meets industry standards.
7.What is the process for return or replacement of MAX4488ASA+T?
All MAX4488ASA+T units undergo pre-shipment inspection (PSI). If there is an issue with MAX4488ASA+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 MAX4488ASA+T part is unused and in its original packaging.
Return procedure for MAX4488ASA+T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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