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Analog Devices Inc./Maxim Integrated MAX4495ASD+T
- Part No.:
- MAX4495ASD+T
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 14-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
MAX4495ASD+T.pdf
- Description:
- IC OPAMP GP 4 CIRCUIT 14SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:4,559
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Product details
Overview
The MAX4495ASD+T from Maxim Integrated is a quad rail-to-rail output operational amplifier designed for precision signal conditioning in automotive-grade systems. It operates from dual ±2.25V to ±5.5V supplies or single +4.5V to +11V, delivers 5MHz gain-bandwidth, consumes only 770µA per amplifier, and features 110dB open-loop gain with 0.002% THD+N at 1kHz - enabling high-fidelity amplification in battery-powered industrial sensors and DAC output stages.
For engineers reviewing the MAX4495ASD+T datasheet, MAX4495ASD+T pinout, MAX4495ASD+T application, or MAX4495ASD+T equivalent, key selection criteria include its -40°C to +125°C automotive qualification, 14-pin SO package, rail-to-rail output swing within 10mV of rails (RL = 100kΩ), input common-mode range extending 200mV below VEE, and unity-gain stability without external compensation.
Technical Context
The MAX4495ASD+T uses a bipolar process to achieve low distortion and high DC precision across temperature. Its input stage supports common-mode voltages from VEE − 0.2V to VCC − 1.5V, while the output stage drives loads down to 1kΩ with <200mV rail margin. The amplifier is unity-gain stable and exhibits no phase reversal under overdriven input conditions.
It achieves 3V/µs slew rate and 190kHz full-power bandwidth at 5Vp-p output, with capacitive-load stability up to 300pF. Crosstalk between channels is ≤−100dB at 1kHz, supporting clean multi-channel operation in compact PCB layouts.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | ±2.25V to ±5.5V dual or +4.5V to +11V single - supports wide-range industrial and automotive power rails |
| Quiescent Current | 770µA per amplifier - enables ultra-low-power operation in always-on sensor interfaces |
| Gain-Bandwidth Product | 5MHz - sufficient for anti-aliasing filters, active instrumentation amplifiers, and medium-speed signal chains |
| Open-Loop Gain | 110dB (RL = 100kΩ) - ensures <10µV error contribution in closed-loop gain ≥100 configurations |
| THD+N | 0.002% at 1kHz - meets audio-grade and high-resolution DAC reconstruction requirements |
| Input Offset Voltage | 10mV max (−40°C to +125°C) - suitable for precision DC-coupled applications with moderate gain |
| Rail-to-Rail Output | Swings within 10mV of rails (RL = 100kΩ) - maximizes dynamic range in low-voltage systems |
Pinout & Package
The MAX4495ASD+T is housed in a 14-pin SO (Small Outline) package, RoHS-compliant, with standard JEDEC MO-153 footprint and 1.27mm pitch.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | OUTA | Channel A output - drives external load or feedback network; rail-to-rail capable |
| 2 | INA− | Channel A inverting input - connects to feedback resistor or inverting node |
| 3 | INA+ | Channel A noninverting input - accepts reference, sensor, or signal source |
| 4 | VEE | Negative supply - must be bypassed with 0.1µF capacitor to ground for stability |
| 5 | VCC | Positive supply - requires dedicated 0.1µF bypass capacitor to ground |
| 6 | INB+ | Channel B noninverting input - independent signal path; no crosstalk coupling above −100dB |
| 7 | INB− | Channel B inverting input - used for differential or inverting configurations |
| 8 | OUTB | Channel B output - fully isolated from Channel A; same electrical specs |
| 9 | INC+ | Channel C noninverting input - third independent amplifier input |
| 10 | INC− | Channel C inverting input - supports multi-channel signal routing |
| 11 | OUTC | Channel C output - identical performance to OUTA/OUTB |
| 12 | IND+ | Channel D noninverting input - fourth channel; enables compact quad-signal processing |
| 13 | IND− | Channel D inverting input - supports independent gain-setting per channel |
| 14 | OUTD | Channel D output - completes quad configuration; all outputs rail-to-rail |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail output swing | Within 10mV of VEE/VCC (RL = 100kΩ) - preserves full signal headroom in low-voltage designs |
| Wide input common-mode range | Extends 200mV below VEE and to within 1.5V of VCC - simplifies level-shifting in mixed-supply systems |
| No phase reversal on overdrive | Prevents latch-up or uncontrolled output transitions during input saturation - critical for fault-tolerant sensor interfaces |
| Unity-gain stable | Operates reliably at gain = 1 without external compensation - reduces BOM count and layout complexity |
| Automotive temperature rating | −40°C to +125°C operation - qualified for engine control, ADAS sensor front-ends, and under-hood electronics |
Applications
| Battery-Powered Sensor Interface | DAC Output Amplifier |
|---|---|
Use Scenario: Amplifying low-level analog signals from MEMS accelerometers or thermistor bridges in portable diagnostic tools. IC Role / Device Role / Timing Role: Precision DC-coupled gain stage with rail-to-rail output driving ADC input or low-power display driver. Use Value: 770µA per amplifier enables >1-year battery life in coin-cell-powered devices while maintaining 10mV offset accuracy across temperature. | Use Scenario: Buffering and scaling voltage outputs from 12-bit to 16-bit DACs in programmable power supplies. IC Role / Device Role / Timing Role: Low-distortion output amplifier ensuring monotonicity and settling within 4µs to 0.01%. Use Value: 0.002% THD+N and 5MHz GBW preserve DAC resolution and enable clean spectral purity in calibration equipment. |
| Industrial Control Loop | Voltage Reference Generator |
Use Scenario: Closed-loop current sensing and actuator drive in PLC I/O modules operating from ±5V rails. IC Role / Device Role / Timing Role: Four-channel op amp implementing simultaneous current monitor, isolation buffer, filter, and output driver. Use Value: Quad integration in 14-pin SO reduces board area by 60% vs. discrete singles; −100dB crosstalk prevents channel interference. | Use Scenario: Generating stable, low-noise reference voltages for precision ADCs in data acquisition systems. IC Role / Device Role / Timing Role: Unity-gain follower buffering bandgap references while rejecting supply ripple. Use Value: 80dB PSRR and 90dB CMRR suppress noise from switching regulators; rail-to-rail output ensures full reference utilization. |
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 |
|---|---|---|---|
| LMV324DR | Lower GBW (1MHz), higher quiescent current (170µA per amp), no automotive temp grade | Not rated for −40°C to +125°C; limited to commercial/industrial ambient | Select when cost sensitivity outweighs automotive qualification and bandwidth needs |
| TSV914IDT | Higher GBW (8MHz), lower supply current (80µA), rail-to-rail input/output, but only 85°C max junction temp | Lacks extended temperature support; unsuitable for under-hood or engine bay use | Choose for space-constrained consumer or telecom applications needing higher speed and lower power |
Compared with LMV324DR and TSV914IDT, the MAX4495ASD+T uniquely combines automotive temperature rating, 5MHz bandwidth, and 770µA per amplifier in a 14-pin SO package - making it the only option among the three qualified for safety-critical automotive sensor signal chains requiring long-term reliability at 125°C.
Availability
The MAX4495ASD+T is available at Aetrix Electronics and suitable for battery-powered sensor interfaces, DAC output amplification, and industrial control loops requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for MAX4495ASD+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 high-performance analog, mixed-signal, and power-management ICs for demanding industrial, automotive, and communications applications.
The MAX4493/MAX4494/MAX4495 family targets low-power, rail-to-rail general-purpose amplification in systems requiring wide supply range, high precision, and automotive-grade reliability - especially where space, power, and thermal constraints limit design margins.
FAQ
What is the operating temperature range of the MAX4495ASD+T?
The MAX4495ASD+T is rated for −40°C to +125°C, meeting AEC-Q100 Grade 2 automotive qualification. This range is confirmed in the Ordering Information table and Absolute Maximum Ratings section of the datasheet. All electrical specifications - including input offset voltage, gain-bandwidth, and THD+N - are guaranteed across this full range. The device uses a bipolar process optimized for stability under thermal stress, making MAX4495ASD+T suitable for engine control units and under-hood sensor modules.
Does the MAX4495ASD+T support single-supply operation?
Yes, the MAX4495ASD+T operates from a single supply of +4.5V to +11V, as explicitly stated in the General Description and DC Electrical Characteristics tables. 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 swings within 10mV of both supply rails. This allows MAX4495ASD+T to function effectively in single-ended sensor interfaces and portable equipment without dual supplies.
What is the maximum capacitive load the MAX4495ASD+T can drive stably?
The MAX4495ASD+T is stable with capacitive loads up to 300pF when configured for unity gain, as verified in the AC Electrical Characteristics table and Typical Operating Characteristics (Figure MAX4493-26). Driving larger loads requires an isolation resistor (e.g., 15Ω) in series with the output, which maintains stability but introduces minor overshoot. This behavior is documented in the Applications Information section, confirming that MAX4495ASD+T avoids oscillation even with 1nF loads when RISO is applied.
Is the MAX4495ASD+T pin-compatible with other packages in the MAX449x family?
No - the MAX4495ASD+T uses a 14-pin SO package, while the MAX4495AUD+ uses a 14-pin TSSOP, and the MAX4494AKA+T uses an 8-pin SOT23. Pinouts differ across packages: the 14-pin SO and TSSOP share identical pin numbering and function mapping (per Pin Configurations diagram), but neither matches the 5-pin SC70 (MAX4493) or 8-pin SOT23 (MAX4494). Therefore, MAX4495ASD+T is pin-compatible only with MAX4495AUD+, not with other family members.
What is the typical supply current per amplifier for the MAX4495ASD+T?
The typical quiescent supply current per amplifier for MAX4495ASD+T is 770µA, as specified in the DC Electrical Characteristics table under "Quiescent Supply Current per Amplifier" (IS). This value is measured at TA = +25°C with ±5V supplies and RL = 100kΩ. The datasheet confirms current remains stable across temperature (see Figure MAX4493-01), varying from ~675µA at −40°C to ~875µA at +125°C - ensuring predictable power budgeting in MAX4495ASD+T-based designs.
MAX4495ASD+T Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Package/Case:
- 14-SOIC (0.154", 3.90mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- 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+T FAQ
1.How can I place an order for MAX4495ASD+T through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX4495ASD+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 MAX4495ASD+T reliable?
The price and inventory of MAX4495ASD+T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX4495ASD+T is usually 5 days.
3.What payment methods are accepted for MAX4495ASD+T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX4495ASD+T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX4495ASD+T?
MAX4495ASD+T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX4495ASD+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 MAX4495ASD+T?
For technical support, including MAX4495ASD+T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX4495ASD+T requirements.
6.How does Aetrix verify that MAX4495ASD+T is sourced from the original manufacturer or authorized distributors?
All MAX4495ASD+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 MAX4495ASD+T meets industry standards.
7.What is the process for return or replacement of MAX4495ASD+T?
All MAX4495ASD+T units undergo pre-shipment inspection (PSI). If there is an issue with MAX4495ASD+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 MAX4495ASD+T part is unused and in its original packaging.
Return procedure for MAX4495ASD+T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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