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Analog Devices Inc./Maxim Integrated MAX4250AAUK+TG103
- Part No.:
- MAX4250AAUK+TG103
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- SC-74A, SOT-753
- Datasheet:
-
MAX4250AAUK+TG103.pdf
- Description:
- IC OPAMP GP 1 CIRCUIT SOT23-5
- Quantity:
- Payment:
- Shipping:
Inventory:2,038
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Product details
Overview
The MAX4250AAUK+TG103 from Analog Devices is a single-channel, unity-gain stable, rail-to-rail output operational amplifier optimized for low-noise (7.9nV/√Hz at 30kHz), ultra-low distortion (0.0004% THD+N at 1kHz), and low quiescent current (400µA) operation in automotive-grade applications. It operates from 2.4V to 5.5V single supply, delivers 3MHz gain-bandwidth, and maintains output swing within 8mV of rails with 10kΩ load - ideal for precision ADC buffering in battery-constrained vehicle subsystems.
For engineers reviewing the MAX4250AAUK+TG103 datasheet, MAX4250AAUK+TG103 pinout, MAX4250AAUK+TG103 application, or MAX4250AAUK+TG103 equivalent, key selection criteria include its AEC-Q100-qualified automotive temperature range (−40°C to +125°C), guaranteed input common-mode range including ground, 400pF capacitive-load stability, and absence of shutdown functionality - distinguishing it from MAX4251/MAX4256 variants.
Technical Context
This op amp employs a fully differential input stage with p-channel JFET-like input transistors enabling 1pA typical input bias current and 70µV max input offset voltage over temperature. Its unity-gain compensation ensures unconditional stability without external phase compensation, supporting high-precision DC-coupled signal conditioning where loop gain integrity is critical.
The device features a push-pull rail-to-rail output stage capable of sourcing/sinking ±5mA while maintaining 116dB large-signal voltage gain and 77dB min CMRR across the full automotive temperature range. Input voltage noise density remains flat at 7.9nV/√Hz from 30kHz onward, confirming thermal-noise dominance suitable for wideband sensor interfaces.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Gain-Bandwidth Product | 3MHz - supports stable unity-gain closed-loop configurations up to ~300kHz signal bandwidth with <0.1dB gain flatness. |
| Input Voltage-Noise Density | 7.9nV/√Hz at 30kHz - enables sub-16-bit SNR preservation in 10kHz–100kHz sensor front-ends. |
| THD+N | 0.0004% at 1kHz, 2VP-P, 1kΩ load - meets audio-grade linearity requirements for analog telemetry paths. |
| Quiescent Supply Current | 400µA per amplifier - allows continuous operation in always-on automotive modules with <2mW total dissipation at 5V. |
| Output Voltage Swing | Within 8mV of VDD/VSS with 10kΩ load - maximizes dynamic range in 3.3V or 5V systems without level-shifting circuitry. |
| Input Common-Mode Range | Includes ground (0V) to VDD − 1.1V - permits direct interfacing with grounded sensors and single-supply ADC references. |
| Capacitive-Load Drive | Stable up to 400pF - eliminates need for isolation resistors in typical PCB trace + filter capacitor loading scenarios. |
Pinout & Package
The MAX4250AAUK+TG103 is housed in a 5-pin SOT23 package (JEDEC MO-178AB) with exposed pad for thermal enhancement, footprint compatible with industry-standard pick-and-place equipment.
| Pin | Circuit Role | Design Meaning |
|---|---|---|
| 1 | OUT | Rail-to-rail output terminal; drives loads down to 1kΩ while preserving DC accuracy and settling to 0.01% in 6.7µs. |
| 2 | VSS | Negative supply pin; must be connected to system ground for single-supply operation - no internal connection to substrate. |
| 3 | IN+ | Noninverting input; high-impedance (1000GΩ) node with 11pF input capacitance - requires guard ring layout for <1pA leakage paths. |
| 4 | IN− | Inverting input; matched to IN+ for optimal CMRR; sensitive to stray capacitance - keep trace length ≤2mm for >70dB rejection. |
| 5 | VDD | Positive supply pin; accepts 2.4V–5.5V; requires local 0.1µF ceramic bypass capacitor placed ≤2mm from pin. |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail output swing | Delivers full-scale signal headroom in 3.3V automotive ECUs without clipping at supply rails. |
| Ultra-low input bias current | 1pA typical enables direct connection to high-impedance sources like piezoelectric accelerometers without signal attenuation. |
| Automotive temperature grade | Specified from −40°C to +125°C with production-tested limits - eliminates derating calculations for under-hood applications. |
| Low THD+N at unity gain | 0.0004% at 1kHz ensures minimal harmonic contamination in precision analog measurement chains feeding 16-bit ADCs. |
| Ground-sensing input | Common-mode range includes 0V - simplifies interface to grounded bridge sensors and shunt-based current monitors. |
Applications
| ADC Buffering | Automotive Sensor Signal Conditioning |
|---|---|
Use Scenario: Driving the input of a 16-bit SAR ADC (e.g., MAX195) in an engine control unit with 3.3V supply. IC Role / Device Role / Timing Role: Precision voltage follower providing low-output-impedance, rail-to-rail drive while rejecting power supply ripple. Use Value: Maintains >95dB SNR by contributing only 7.9nV/√Hz input noise and 0.0004% THD+N at 1kHz - directly preserving ADC ENOB. | Use Scenario: Amplifying mV-level outputs from exhaust gas oxygen (EGO) sensors in emission control systems. IC Role / Device Role / Timing Role: High-input-impedance, ground-referenced instrumentation amplifier front-end stage. Use Value: Input common-mode range including ground enables direct connection to EGO sensor's reference electrode without level shifters. |
| Portable Medical Instrumentation | Industrial Process Monitoring |
Use Scenario: Signal conditioning for handheld blood glucose meters using electrochemical test strips. IC Role / Device Role / Timing Role: Low-power transimpedance amplifier converting nanoampere strip currents to measurable voltages. Use Value: 400µA quiescent current extends battery life to >1000 measurements per CR2032 cell while maintaining 16-bit linearity. | Use Scenario: Isolating and amplifying 4–20mA loop signals in factory automation PLC I/O modules. IC Role / Device Role / Timing Role: Precision unity-gain buffer isolating field-side analog inputs from noisy digital backplanes. Use Value: 77dB min CMRR over −40°C to +125°C rejects common-mode noise from motor drives and switching power supplies. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar op amp applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX4250EUK+T | Same electrical specs but rated for −40°C to +85°C industrial temp range; top mark ACCI vs AEYJ. | Not qualified for under-hood automotive use; unsuitable for ECU, transmission control, or ADAS modules. | Select MAX4250EUK+T only for cost-sensitive industrial or consumer designs operating within commercial temperature limits. |
| OPA333AIDBVR | Zero-drift architecture; 0.1µV/°C offset drift vs 0.3µV/°C for MAX4250AAUK; higher 350µA IQ but lower 0.6µV VOS max. | Better DC precision for long-term drift-critical applications (e.g., strain gauge bridges); less optimal for wideband THD-sensitive uses. | Choose OPA333AIDBVR when microvolt-level offset stability dominates over 3MHz bandwidth and 0.0004% THD+N. |
Compared with MAX4250EUK+T, the MAX4250AAUK+TG103 provides guaranteed performance over the extended automotive temperature range without trade-offs in noise, distortion, or bandwidth; versus OPA333AIDBVR, it delivers superior wideband linearity and lower input voltage noise at the expense of higher offset drift - making it preferred for dynamic sensor signal chains.
Availability
The MAX4250AAUK+TG103 is available at Aetrix Electronics and suitable for automotive electronic control units, industrial process monitoring systems, and portable medical instrumentation requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for MAX4250AAUK+TG103 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
Analog Devices is a global leader in high-performance analog, mixed-signal, and digital signal processing semiconductors, serving industrial, automotive, communications, and healthcare markets since 1965.
The MAX4249–MAX4257 family was engineered specifically for automotive and portable instrumentation applications demanding simultaneous low noise, low distortion, rail-to-rail output, and micropower operation - with the MAX4250AAUK+TG103 representing the AEC-Q100-compliant variant in 5-pin SOT23.
FAQ
Does the MAX4250AAUK+TG103 include a shutdown pin?
No, the MAX4250AAUK+TG103 does not feature a shutdown function. Unlike the MAX4251/MAX4256 variants in the same family, this part lacks SHDN pin capability - confirmed by its 5-pin SOT23 pinout (OUT, VSS, IN+, IN−, VDD) and absence of shutdown-related electrical characteristics in the datasheet. Designers requiring low-power sleep mode must select MAX4251AAUK+ or MAX4256AAUK+ instead.
What is the maximum capacitive load the MAX4250AAUK+TG103 can drive without oscillation?
Per the datasheet's Electrical Characteristics table and Typical Operating Characteristics (TOC19), the MAX4250AAUK+TG103 maintains stable operation with capacitive loads up to 400pF without external compensation. This value is validated across the full −40°C to +125°C temperature range and applies to both unity-gain and higher-gain configurations. Loads exceeding 400pF require series isolation resistance per Figure 5 in the datasheet.
Is the MAX4250AAUK+TG103 pin-compatible with other op amps in the MAX4249–MAX4257 family?
The MAX4250AAUK+TG103 shares the same 5-pin SOT23 pinout with MAX4250EUK+T and MAX4255EUK+T, but is not pin-compatible with shutdown-enabled variants (e.g., MAX4251) or multi-amplifier packages. Its pin 1 (OUT), pin 2 (VSS), pin 3 (IN+), pin 4 (IN−), pin 5 (VDD) mapping matches only the single-channel, non-shutdown members of the family - verified in the Pin/Bump Configurations section on page 9 of the datasheet.
What is the input offset voltage specification for the MAX4250AAUK+TG103 over temperature?
The MAX4250AAUK+TG103 has a maximum input offset voltage of ±1.85mV over its full −40°C to +125°C operating range, as specified in the Electrical Characteristics table on page 2 of the datasheet. This is higher than the ±0.75mV limit for the industrial-grade MAX4250EUK+T, reflecting the wider temperature span and automotive qualification requirements. The typical value remains ±0.07mV at +25°C.
Can the MAX4250AAUK+TG103 operate from a 2.4V supply while maintaining rail-to-rail output swing?
Yes, the MAX4250AAUK+TG103 is fully specified for 2.4V to 5.5V single-supply operation. At VDD = 2.4V, the output swings to within 8mV of both rails with a 10kΩ load (per Electrical Characteristics table), delivering usable 2.384V peak-to-peak swing - sufficient for driving low-voltage ADCs and comparators in energy-constrained automotive subsystems.
MAX4250AAUK+TG103 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Package/Case:
- SC-74A, SOT-753
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Amplifier Type:
- General Purpose
- Number of Circuits:
- 1
- Output Type:
- Push-Pull, Rail-to-Rail
- Slew Rate:
- 0.3V/µs
- Gain Bandwidth Product:
- 3 MHz
- -3db Bandwidth:
- -
- Current - Input Bias:
- 1 pA
- Voltage - Input Offset:
- 70 µV
- Current - Supply:
- 420µA
- Current - Output / Channel:
- 68 mA
- Voltage - Supply Span (Min):
- 2.4 V
- Voltage - Supply Span (Max):
- 5.5 V
- Operating Temperature:
- -40°C ~ 125°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-23-5
MAX4250AAUK+TG103 FAQ
1.How can I place an order for MAX4250AAUK+TG103 through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX4250AAUK+TG103 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 MAX4250AAUK+TG103 reliable?
The price and inventory of MAX4250AAUK+TG103 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX4250AAUK+TG103 is usually 5 days.
3.What payment methods are accepted for MAX4250AAUK+TG103?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX4250AAUK+TG103 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX4250AAUK+TG103?
MAX4250AAUK+TG103 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX4250AAUK+TG103 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 MAX4250AAUK+TG103?
For technical support, including MAX4250AAUK+TG103 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX4250AAUK+TG103 requirements.
6.How does Aetrix verify that MAX4250AAUK+TG103 is sourced from the original manufacturer or authorized distributors?
All MAX4250AAUK+TG103 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 MAX4250AAUK+TG103 meets industry standards.
7.What is the process for return or replacement of MAX4250AAUK+TG103?
All MAX4250AAUK+TG103 units undergo pre-shipment inspection (PSI). If there is an issue with MAX4250AAUK+TG103, 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 MAX4250AAUK+TG103 part is unused and in its original packaging.
Return procedure for MAX4250AAUK+TG103:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
MAX4250AAUK+TG103 Tags
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