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Analog Devices Inc./Maxim Integrated MAX4495ASD
- Part No.:
- MAX4495ASD
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 14-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
MAX4495ASD.pdf
- Description:
- IC OPAMP GP 4 CIRCUIT 14SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:1,847
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Product details
Overview
The MAX4495ASD from Maxim Integrated is a quad rail-to-rail operational amplifier designed for precision signal conditioning in automotive and industrial systems operating from ±2.25V to ±5.5V dual supplies. It delivers 5MHz gain-bandwidth, 770µA per amplifier quiescent current, 110dB open-loop gain (RL = 100kΩ), and rail-to-rail output swing within 10mV of either supply rail at RL = 100kΩ.
For engineers reviewing the MAX4495ASD datasheet, MAX4495ASD pinout, MAX4495ASD application, or MAX4495ASD equivalent, key selection criteria include its -40°C to +125°C automotive temperature rating, 14-pin SO package, quad-channel architecture, and low THD+N of 0.002% at 1kHz - critical for DAC output buffering and voltage reference generation.
Technical Context
This quad op amp uses bipolar process technology and features a rail-to-rail output stage capable of driving 1kΩ loads while maintaining ≤200mV from rails. Its input common-mode range extends 200mV below VEE and to within 1.5V of VCC, enabling wide dynamic range in dual-supply configurations.
It achieves unity-gain stability with 75° phase margin and supports capacitive loads up to 300pF without external compensation. The device exhibits no phase reversal under overdriven input conditions and provides 1mV max input offset voltage matching between channels in the MAX4495 variant.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Gain-Bandwidth Product | 5MHz - enables stable unity-gain operation with sufficient bandwidth for audio and sensor signal amplification |
| Quiescent Current per Amplifier | 770µA - supports battery-powered systems requiring low power without sacrificing speed |
| Open-Loop Gain | 110dB (RL = 100kΩ) - ensures high DC precision and minimal gain error in closed-loop configurations |
| THD+N | 0.002% at 1kHz - meets fidelity requirements for DAC output amplification and audio signal paths |
| Rail-to-Rail Output Swing | Within 10mV of rails (RL = 100kΩ) - maximizes dynamic range in low-voltage dual-supply applications |
| Input Common-Mode Range | VEE – 0.2V to VCC – 1.5V - accommodates ground-referenced inputs and wide-swing sensor signals |
| Supply Voltage Range | ±2.25V to ±5.5V - compatible with standard ±3V and ±5V industrial and automotive rails |
Pinout & Package
The MAX4495ASD is housed in a 14-pin SO (Small Outline) package with standard 1.27mm pitch, RoHS-compliant, and rated for automotive temperature range (-40°C to +125°C).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | OUTA | Channel A output - drives external load with rail-to-rail swing and low output impedance |
| 2 | INA− | Channel A inverting input - accepts feedback network for precise gain control |
| 3 | INA+ | Channel A noninverting input - connects to reference or sensor signal source |
| 4 | VEE | Negative supply rail - must be bypassed with 0.1µF capacitor to ground for stability |
| 5 | VCC | Positive supply rail - requires independent 0.1µF bypass capacitor to ground |
| 6 | INB+ | Channel B noninverting input - isolated input node for second signal path |
| 7 | INB− | Channel B inverting input - supports differential or single-ended configuration |
| 8 | OUTB | Channel B output - fully independent output stage with same performance as OUTA |
| 9 | INC+ | Channel C noninverting input - third channel input, electrically isolated from others |
| 10 | INC− | Channel C inverting input - supports multi-channel signal conditioning without crosstalk |
| 11 | OUTC | Channel C output - maintains 100dB all-hostile crosstalk rejection vs. other channels |
| 12 | IND+ | Channel D noninverting input - fourth independent input for quad-channel system integration |
| 13 | IND− | Channel D inverting input - enables four simultaneous precision amplification paths |
| 14 | OUTD | Channel D output - completes quad architecture with matched AC/DC performance |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail output stage | Swings within 10mV of VCC/VEE at RL = 100kΩ - preserves full signal headroom in low-voltage systems |
| No phase reversal on overdrive | Prevents latch-up or unpredictable behavior when inputs exceed common-mode range - improves system robustness |
| 1mV max input offset voltage matching | Ensures consistent gain and DC accuracy across all four channels - essential for multi-channel instrumentation |
| Stable with 300pF capacitive load | Eliminates need for external isolation resistors in many PCB layouts - simplifies design and reduces BOM count |
| Automotive temperature rating | -40°C to +125°C operation - qualified for engine control, ADAS, and under-hood applications |
Applications
| Battery-Powered Systems | DAC Output Amplifiers |
|---|---|
Use Scenario: Portable data loggers and handheld test equipment powered by Li-ion or alkaline batteries. IC Role / Device Role / Timing Role: Quad op amp buffers analog outputs from microcontroller DACs and condition sensor signals before ADC sampling. Use Value: 770µA per amplifier quiescent current extends battery life while 5MHz bandwidth supports fast sampling rates. | Use Scenario: Precision voltage reference generation and DAC output buffering in programmable power supplies. IC Role / Device Role / Timing Role: Post-DAC gain stage and low-noise buffer ensuring accurate, low-distortion analog output. Use Value: 0.002% THD+N at 1kHz and 110dB open-loop gain preserve DAC resolution and minimize harmonic artifacts. |
| Industrial Control Systems | Voltage Reference Generators |
Use Scenario: Analog I/O modules in PLCs and distributed control systems requiring multi-channel signal conditioning. IC Role / Device Role / Timing Role: Simultaneous amplification and filtering of four sensor inputs (e.g., RTD, thermocouple, pressure transducer). Use Value: 1mV max input offset matching and 100dB crosstalk rejection ensure channel-to-channel consistency and measurement integrity. | Use Scenario: High-stability reference buffers in precision ADC front-ends and calibration circuits. IC Role / Device Role / Timing Role: Low-drift, low-noise buffer isolating reference voltage sources from varying load conditions. Use Value: Input common-mode range extending 200mV below VEE allows direct connection to sub-ground references like buried zener nodes. |
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 |
|---|---|---|---|
| LMV324QDRQ1 | Lower GBWP (1MHz), higher IS (120µA per amp), CMOS input (pA-level IB), not unity-gain stable | Targeted at cost-sensitive automotive applications where bandwidth and precision are secondary to ultra-low power | Select LMV324QDRQ1 only if supply current <150µA is mandatory and 1MHz bandwidth suffices |
| TSV914IQDT | Higher GBWP (8MHz), lower IS (820µA), rail-to-rail input/output, but only rated to +105°C | Suitable for consumer and industrial apps outside extended automotive temperature range | Choose TSV914IQDT when >5MHz bandwidth is needed and operation above +105°C is not required |
Compared with LMV324QDRQ1 and TSV914IQDT, the MAX4495ASD uniquely combines 5MHz bandwidth, 110dB gain, automotive-grade -40°C to +125°C operation, and guaranteed unity-gain stability - making it optimal for precision quad-channel systems where thermal robustness and DC accuracy are non-negotiable.
Availability
MAX4495ASD is available at Aetrix Electronics and suitable for battery-powered systems, DAC output amplification, and industrial control systems requiring stable component supply across extended temperature ranges.
Supply support for MAX4495ASD 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 MAX4493/MAX4494/MAX4495 family was developed specifically for low-power, rail-to-rail precision amplification in dual-supply environments - targeting automotive sensor interfaces and portable instrumentation.
FAQ
What is the maximum capacitive load the MAX4495ASD can drive without oscillation?
The MAX4495ASD is stable with capacitive loads up to 300pF when configured in unity-gain. For larger loads, an isolation resistor (e.g., 15Ω) in series with the output restores stability, as confirmed in the Typical Operating Characteristics section of the MAX4495ASD datasheet. This behavior is validated across the full -40°C to +125°C temperature range.
Does the MAX4495ASD support single-supply operation?
Yes, the MAX4495ASD operates from a single supply of +4.5V to +11V, in addition to dual supplies from ±2.25V to ±5.5V. Its input common-mode range extends 200mV below the negative rail (which may be ground in single-supply mode), and its rail-to-rail output enables full utilization of the supply voltage - making it suitable for single-supply sensor interfaces and DAC buffers.
What is the input offset voltage specification for the MAX4495ASD over temperature?
The MAX4495ASD guarantees a maximum input offset voltage of 10mV over the full -40°C to +125°C automotive temperature range. At +25°C, typical VOS is 0.3mV, with a drift of 3µV/°C - meaning worst-case offset remains well within 10mV across temperature, critical for precision multi-channel systems.
Is the MAX4495ASD pin-compatible with other devices in the MAX449x family?
No - the MAX4495ASD (14-pin SO) is not pin-compatible with the MAX4493 (5-pin SC70) or MAX4494 (8-pin SOT23). However, all three share identical electrical specifications and pin functions per channel. The MAX4495ASD's 14-pin SO layout follows industry-standard quad op amp pinouts (e.g., IN+/IN−/OUT per channel plus dual supplies), enabling drop-in replacement in existing 14-pin SO footprints.
What packaging and compliance information applies to the MAX4495ASD?
The MAX4495ASD is supplied in a 14-pin SO package (package code S14-1), lead(Pb)-free and RoHS-compliant (denoted by the '+' suffix). It is qualified for automotive applications per AEC-Q100 guidelines and rated for continuous operation from -40°C to +125°C ambient temperature - verified through production testing and design characterization.
MAX4495ASD Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Package/Case:
- 14-SOIC (0.154", 3.90mm Width)
- Packaging:
- Tube
- Product Status:
- Obsolete
- Amplifier Type:
- General Purpose
- Number of Circuits:
- 4
- Output Type:
- Rail-to-Rail
- Slew Rate:
- 3V/µs
- Gain Bandwidth Product:
- 5 MHz
- -3db Bandwidth:
- -
- Current - Input Bias:
- 200 nA
- Voltage - Input Offset:
- 300 µV
- Current - Supply:
- 770µA (x4 Channels)
- Current - Output / Channel:
- 15 mA
- Voltage - Supply Span (Min):
- 4.5 V
- Voltage - Supply Span (Max):
- 11 V
- Operating Temperature:
- -40°C ~ 125°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 14-SOIC
MAX4495ASD FAQ
1.How can I place an order for MAX4495ASD through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX4495ASD 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 MAX4495ASD reliable?
The price and inventory of MAX4495ASD are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX4495ASD is usually 5 days.
3.What payment methods are accepted for MAX4495ASD?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX4495ASD transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX4495ASD?
MAX4495ASD orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX4495ASD 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 MAX4495ASD?
For technical support, including MAX4495ASD datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX4495ASD requirements.
6.How does Aetrix verify that MAX4495ASD is sourced from the original manufacturer or authorized distributors?
All MAX4495ASD 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 MAX4495ASD meets industry standards.
7.What is the process for return or replacement of MAX4495ASD?
All MAX4495ASD units undergo pre-shipment inspection (PSI). If there is an issue with MAX4495ASD, 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 MAX4495ASD part is unused and in its original packaging.
Return procedure for MAX4495ASD:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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