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Analog Devices Inc./Maxim Integrated MAX4250EUK.C60368
- Part No.:
- MAX4250EUK.C60368
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- SC-74A, SOT-753
- Datasheet:
-
MAX4250EUK.C60368.pdf
- Description:
- IC OPAMP GP 1 CIRCUIT SOT23-5
- Quantity:
- Payment:
- Shipping:
Inventory:4,976
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Product details
Overview
MAX4250EUK.C60368 from Maxim Integrated is a single-channel, unity-gain stable, rail-to-rail output operational amplifier optimized for low-noise (7.9nV/√Hz), low-distortion (0.0002% THD) signal conditioning in battery-powered instrumentation. It operates from 2.4V to 5.5V single supply, draws 400µA quiescent current, and delivers 3MHz gain-bandwidth with ±70µV input offset voltage - making it ideal for ADC buffer stages in portable medical and precision measurement systems.
For engineers reviewing the MAX4250EUK.C60368 datasheet, MAX4250EUK.C60368 pinout, MAX4250EUK.C60368 application, or MAX4250EUK.C60368 equivalent, key selection criteria include its guaranteed rail-to-rail output swing within 8mV of rails at 10kΩ load, 400pF capacitive-load stability, and unity-gain stability without external compensation - critical for high-fidelity sensor interface and data acquisition designs.
Technical Context
The MAX4250EUK.C60368 employs a fully differential input stage with picoampere-level input bias current (1pA typical) and a push-pull rail-to-rail output stage capable of sourcing/sinking ±5mA. Its input common-mode range extends to ground and up to VDD − 1.1V, enabling true ground-sensing operation in single-supply configurations.
It features internal unity-gain compensation, delivering 3MHz GBW with 74° phase margin and 10dB gain margin at AV = 1. The device maintains <0.0012% THD+N at 1kHz with 2VP-P output into 1kΩ, and exhibits flat noise performance from 10Hz to 30kHz - confirming suitability for 16-bit ADC front-ends where harmonic distortion and broadband noise directly impact ENOB.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Gain-Bandwidth Product | 3MHz - supports stable unity-gain buffering of signals up to ~300kHz with minimal phase lag. |
| Input Voltage Noise Density | 7.9nV/√Hz at 30kHz - enables sub-1µV RMS noise contribution in 10kHz bandwidth sensor interfaces. |
| Total Harmonic Distortion + Noise | 0.0002% THD at 1kHz - preserves signal fidelity in audio and precision analog measurement paths. |
| Input Offset Voltage | ±70µV max - ensures ≤0.7mV error in 10V full-scale systems, critical for DC-coupled strain gauge amplification. |
| Rail-to-Rail Output Swing | Within 8mV of VDD/VSS at 10kΩ load - maximizes dynamic range in 3.3V or lower supply systems. |
| Capacitive Load Drive | Stable with up to 400pF - eliminates need for isolation resistors when driving ADC input capacitance or long PCB traces. |
| Supply Current | 400µA per amplifier - enables multi-channel low-power monitoring with <2mW total dissipation at 5V. |
Pinout & Package
MAX4250EUK.C60368 is housed in a 5-pin SOT23 package (package code U5+2), with exposed pad not electrically connected. Pin 1 is OUT, Pin 2 is IN−, Pin 3 is IN+, Pin 4 is VSS (ground), and Pin 5 is VDD (positive supply). No shutdown pin is present - consistent with the MAX4250 family's non-shutdown variant designation.
| Pin | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Amplifier Output | Push-pull rail-to-rail output capable of driving 1kΩ loads while maintaining DC accuracy and 400pF capacitive stability. |
| 2 | Inverting Input | High-impedance node (1000GΩ) accepting feedback networks; input capacitance 11pF requires feed-forward compensation above 20kΩ resistor values. |
| 3 | Noninverting Input | Ground-sensing input with common-mode range from VSS to VDD − 1.1V - enables direct connection to transducer outputs referenced to system ground. |
| 4 | Negative Supply | Connected to system ground in single-supply operation; must be decoupled with 0.1µF ceramic capacitor placed adjacent to pin. |
| 5 | Positive Supply | Accepts 2.4V–5.5V single supply; PSRR >75dB ensures immunity to power rail noise in mixed-signal PCB layouts. |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail output swing | Delivers full 3.3V or 5V dynamic range in low-voltage systems, minimizing headroom loss before ADC sampling. |
| Unity-gain stability | Operates reliably at AV = 1 without external compensation components - reduces BOM count and layout complexity for buffer applications. |
| Low input bias current | 1pA typical enables accurate amplification of high-impedance sources (e.g., piezoelectric sensors, pH electrodes) without significant DC error. |
| 400pF capacitive-load drive | Directly interfaces with SAR and sigma-delta ADC inputs (typically 10–30pF) plus PCB trace capacitance without oscillation or peaking. |
| Single-supply operation down to 2.4V | Supports coin-cell (3V) and Li-ion (3.6V nominal) powered devices - essential for portable medical and IoT edge sensors. |
Applications
| ADC Buffer Stage | Portable Medical Sensor Interface |
|---|---|
Use Scenario: Driving the input of a 16-bit SAR ADC (e.g., MAX195) in a handheld blood glucose meter. IC Role / Device Role / Timing Role: Precision voltage buffer isolating high-impedance electrochemical sensor output from ADC sampling kickback. Use Value: 7.9nV/√Hz input noise and 0.0002% THD preserve ENOB >14.5 bits across 10kHz bandwidth, meeting ISO 15197 clinical accuracy requirements. | Use Scenario: Signal conditioning for a wearable ECG front-end using dry electrodes. IC Role / Device Role / Timing Role: First-stage amplifier with ground-referenced input accepting microvolt-level cardiac signals. Use Value: Input common-mode range including ground and ±70µV VOS enable DC-coupled acquisition without level-shifting circuitry, reducing component count and power. |
| Digital Scale Strain Gauge Amplifier | Low-Voltage Industrial Transmitter |
Use Scenario: Amplifying mV-level output from a 350Ω Wheatstone bridge in a battery-operated kitchen scale. IC Role / Device Role / Timing Role: Instrumentation-grade gain stage with matched input impedance and low thermal drift. Use Value: 0.3µV/°C VOS tempco and 1pA IB prevent zero-drift errors during ambient temperature fluctuations, ensuring ±0.1% full-scale repeatability. | Use Scenario: 4–20mA loop transmitter sensing pressure in a smart factory node powered by 3.3V energy harvesting. IC Role / Device Role / Timing Role: Low-power signal conditioner feeding a DAC-controlled current source. Use Value: 400µA supply current and 2.4V minimum operation extend battery life >5 years in maintenance-free deployments while maintaining 12-bit linearity. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar rail-to-rail op amp applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| OPA333AIDBVR | Zero-drift architecture (0.02µV/°C VOS drift); higher 350µA IQ; 350kHz GBW | Better DC precision over temperature; insufficient bandwidth for >100kHz ADC buffering | Select for ultra-stable DC gain calibration; avoid for wideband sensor signal chains requiring >1MHz settling. |
| ADA4522-1ARMZ | Zero-drift, 2.5MHz GBW, 5.6nV/√Hz noise, 550µA IQ, ±2.5V to ±5.5V dual supply only | Superior noise and drift specs but requires dual supply - incompatible with single 3.3V systems | Choose for lab-grade instrumentation with dual rails; not viable for portable battery-powered designs. |
Compared with OPA333AIDBVR and ADA4522-1ARMZ, MAX4250EUK.C60368 provides optimal balance of bandwidth, noise, and single-supply operation - uniquely supporting rail-to-rail 3.3V ADC buffering with <1µV RMS noise and no external compensation, whereas alternatives trade bandwidth for drift or require dual supplies.
Availability
MAX4250EUK.C60368 is available at Aetrix Electronics and suitable for portable medical devices, precision digital scales, and industrial 4–20mA transmitters requiring stable component supply with guaranteed long-term availability and RoHS-compliant packaging.
Supply support for MAX4250EUK.C60368 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 communications applications.
The MAX4249–MAX4257 product line delivers ultra-low-noise, low-distortion op amps optimized for battery-powered instrumentation - specifically engineered to replace legacy bipolar-input amplifiers in 16-bit data acquisition systems without sacrificing speed or DC accuracy.
FAQ
What is the operating temperature range for MAX4250EUK.C60368?
The MAX4250EUK.C60368 is specified for operation from -40°C to +85°C. This commercial temperature grade is confirmed in the Ordering Information table of the MAX4249–MAX4257 datasheet, where MAX4250EUK+T (identical marking and package) is explicitly listed with -40°C to +85°C range. It is distinct from the automotive-grade MAX4250AAUK, which operates from -40°C to +125°C.
Does MAX4250EUK.C60368 include a shutdown pin?
No, MAX4250EUK.C60368 does not include a shutdown pin. The MAX4250 family member without shutdown functionality is designated in the Selector Guide as "-" under Shutdown Mode, and the SOT23 pinout diagram confirms only five pins: OUT, IN−, IN+, VSS, and VDD. Shutdown capability is reserved for variants like MAX4251 and MAX4256, which feature an additional SHDN pin.
What is the maximum capacitive load the MAX4250EUK.C60368 can drive without external compensation?
The MAX4250EUK.C60368 can drive up to 400pF capacitive load while maintaining stability without external compensation, as verified in the Electrical Characteristics table under "Capacitive-Load Stability". This specification applies to unity-gain configuration (AV = 1), enabling direct connection to ADC inputs and PCB traces without isolation resistors in most data acquisition layouts.
Is MAX4250EUK.C60368 unity-gain stable, and what is its phase margin?
Yes, MAX4250EUK.C60368 is unity-gain stable with a phase margin of 74° and gain margin of 10dB at AV = 1, as documented in the Electrical Characteristics table. These values are measured under standard conditions (VDD = 5V, RL = 50kΩ, CL = 20pF) and confirm robust stability for buffer applications without requiring external compensation networks.
What package type and footprint does MAX4250EUK.C60368 use?
MAX4250EUK.C60368 uses a 5-pin SOT23 package (outline 21-0057, land pattern 90-0174), with top mark "ACCI" per the Ordering Information table. The package has no exposed thermal pad, and pin 1 (OUT) is located at the bottom-left corner when viewing the top-marking side with the notch or dot oriented left - matching standard SOT23 orientation conventions.
MAX4250EUK.C60368 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Package/Case:
- SC-74A, SOT-753
- Packaging:
- Bulk
- Product Status:
- Active
- 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:
- 0.1 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 ~ 85°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-23-5
MAX4250EUK.C60368 FAQ
1.How can I place an order for MAX4250EUK.C60368 through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX4250EUK.C60368 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 MAX4250EUK.C60368 reliable?
The price and inventory of MAX4250EUK.C60368 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX4250EUK.C60368 is usually 5 days.
3.What payment methods are accepted for MAX4250EUK.C60368?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX4250EUK.C60368 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX4250EUK.C60368?
MAX4250EUK.C60368 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX4250EUK.C60368 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 MAX4250EUK.C60368?
For technical support, including MAX4250EUK.C60368 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX4250EUK.C60368 requirements.
6.How does Aetrix verify that MAX4250EUK.C60368 is sourced from the original manufacturer or authorized distributors?
All MAX4250EUK.C60368 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 MAX4250EUK.C60368 meets industry standards.
7.What is the process for return or replacement of MAX4250EUK.C60368?
All MAX4250EUK.C60368 units undergo pre-shipment inspection (PSI). If there is an issue with MAX4250EUK.C60368, 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 MAX4250EUK.C60368 part is unused and in its original packaging.
Return procedure for MAX4250EUK.C60368:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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