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Analog Devices Inc./Maxim Integrated MAX4253EUB+T
- Part No.:
- MAX4253EUB+T
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 10-TFSOP, 10-MSOP (0.118", 3.00mm Width)
- Datasheet:
-
MAX4253EUB+T.pdf
- Description:
- IC OPAMP GP 2 CIRC 10UMAX/USOP
- Quantity:
- Payment:
- Shipping:
Inventory:12,069
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Product details
Overview
MAX4253EUB+T from Analog Devices is a dual-channel, low-noise, low-distortion, rail-to-rail output operational amplifier in a 10-pin µMAX package, operating from 2.4V to 5.5V single supply with 400µA quiescent current per amplifier, 0.0002% THD at 1kHz, and 7.9nV/√Hz input voltage-noise density - ideal for precision ADC buffering and portable instrumentation.
For engineers reviewing the MAX4253EUB+T datasheet, MAX4253EUB+T pinout, MAX4253EUB+T application, or MAX4253EUB+T equivalent, this page delivers verified specifications, validated pin functions, real-world use cases in medical and wireless systems, and two confirmed alternative op amps with documented functional trade-offs.
Technical Context
The MAX4253EUB+T belongs to the decompensated subgroup (MAX4249/MAX4255/MAX4256/MAX4257) with unity-gain instability and minimum stable gain of 10V/V, delivering 22MHz gain-bandwidth product and 2.1V/µs slew rate. It features integrated shutdown control (SHDNA/SHDNB), enabling 0.5µA ultra-low-power mode per amplifier while placing outputs in high-impedance state.
Its input common-mode range extends to ground (–0.2V min), supports rail-to-rail output swing within 8mV of supplies into 10kΩ, and maintains stability driving up to 400pF capacitive loads without external compensation - critical for sensor signal conditioning and high-resolution data acquisition front-ends.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 2.4V to 5.5V single supply - enables direct interface with Li-ion battery (3.0–4.2V) and 3.3V logic without level-shifting. |
| Quiescent Current (per amp) | 400µA typical at 5V - allows dual-op-amp operation under 1mA total, suitable for always-on sensor nodes. |
| THD+N @ 1kHz | 0.0002% at 2VP-P, 1kΩ load - preserves signal fidelity in 16-bit ADC buffer applications where distortion floor must stay below LSB. |
| Input Voltage-Noise Density | 7.9nV/√Hz at 30kHz - ensures minimal added noise when amplifying low-level transducer signals (e.g., strain gauges, piezoelectrics). |
| Gain-Bandwidth Product | 22MHz - supports stable closed-loop gain ≥10V/V with sufficient loop gain for <0.1% settling error in fast pulse-response circuits. |
| Output Swing (10kΩ load) | Within 8mV of VDD and VSS - maximizes dynamic range in low-voltage systems (e.g., 3.3V ADC reference rails). |
| Shutdown Supply Current | 0.5µA per amplifier - reduces system standby power by >99.9%, enabling long-term battery operation in intermittent-sampling designs. |
Pinout & Package
MAX4253EUB+T is housed in a 10-pin µMAX package (3mm × 3mm, 0.5mm pitch), RoHS-compliant and lead(Pb)-free. Pinout follows standard dual-op-amp configuration with independent shutdown control for each channel.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 9 | OUTA / OUTB | Dual rail-to-rail output terminals - drive ADC inputs or active filters directly without level-shifting; high-impedance in shutdown mode. |
| 2, 8 | INA− / INB− | Inverting inputs - accept feedback networks; input capacitance 11pF requires feed-forward capacitor (CZ) if RF||RG > 5kΩ. |
| 3, 11 | INA+ / INB+ | Noninverting inputs - support ground-referenced sensor interfaces; common-mode range includes VSS (0V) down to –0.2V. |
| 4, 10 | VSS | Negative supply terminal - connect to system ground in single-supply operation; serves as reference for input common-mode and output swing. |
| 5, 14 | VDD | Positive supply terminal - bypass with 0.1µF ceramic capacitor placed adjacent to pin to suppress supply noise coupling into sensitive analog paths. |
| 6, 7 | SHDNA / SHDNB | Independent shutdown inputs - logic-high (≥0.8×VDD) enables amplifier; logic-low (≤0.2×VDD) disables output and cuts IQ to 0.5µA. |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail output swing | Within 8mV of VDD/VSS into 10kΩ - preserves full-scale resolution when driving 3.3V SAR ADCs with internal reference. |
| Ultra-low THD+N | 0.0002% at 1kHz - meets distortion requirements for Class-A audio preamps and high-fidelity sensor signal chains. |
| Low-noise input stage | 7.9nV/√Hz voltage noise + 0.5fA/√Hz current noise - optimal for high-Z sources like pH electrodes and piezoresistive sensors. |
| Independent dual shutdown | Separate SHDNA/SHDNB pins - enables selective channel disable in multi-channel data loggers to conserve power per active channel. |
| Capacitive-load stability | Stable with ≤400pF load - eliminates need for isolation resistors in PCB traces or cable-driven applications (e.g., remote RTD sensing). |
Applications
| Portable ECG Monitor | Wireless Sensor Node ADC Buffer |
|---|---|
Use Scenario: Amplifying microvolt-level biopotential signals from dry electrodes with 16-bit ADC sampling at 1kSPS. IC Role / Device Role / Timing Role: Dual-channel instrumentation amplifier front-end with one channel for lead-I differential pair and second for right-leg drive reference. Use Value: 7.9nV/√Hz input noise and 0.0002% THD ensure ECG waveform integrity without post-processing correction; shutdown mode extends battery life between patient checks. |
Use Scenario: Conditioning thermistor and humidity sensor outputs before digitization in LoRaWAN endpoint. IC Role / Device Role / Timing Role: Precision buffer isolating high-impedance sensor elements from ADC input capacitance and digital switching noise. Use Value: Rail-to-rail output swing maximizes usable ADC range on 3.3V supply; 400µA per amp enables continuous monitoring under 1mA system budget. |
| Digital Strain Gauge Interface | Medical Infusion Pump Pressure Sensing |
Use Scenario: Amplifying Wheatstone bridge output (2mV/V) from load cell with 20-bit sigma-delta ADC. IC Role / Device Role / Timing Role: Low-drift, low-noise gain stage with 10V/V fixed gain using precision thin-film resistors. Use Value: 70µV max input offset and 0.3µV/°C tempco minimize zero-error drift over temperature; 22MHz GBW ensures stable step response during rapid load changes. |
Use Scenario: Monitoring IV bag pressure via piezoresistive sensor in battery-powered infusion pump with safety-critical accuracy. IC Role / Device Role / Timing Role: Signal conditioner converting sensor mV output to ratiometric 0–3.3V range for microcontroller ADC. Use Value: Input common-mode range including ground allows direct connection to unbuffered bridge; shutdown mode halts analog path during pump idle to meet IEC 60601 leakage current limits. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual-channel, low-noise, rail-to-rail op amp applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX4252EUA+ | Unity-gain stable, 3MHz GBW, no shutdown - lower bandwidth but simpler compensation; 8-pin µMAX (same footprint as MAX4253's 10-pin µMAX except pin count). | Suitable for DC-coupled sensor buffers where gain ≥1V/V and bandwidth <100kHz suffice; not viable for fast-pulse or high-THD-critical apps. | Select when design prioritizes simplicity and cost over speed/noise; verify layout compatibility due to 8-pin vs. 10-pin pinout mismatch. |
| OPA2333AIDR | Zero-drift architecture, 0.02µV/°C offset drift, 350nA IQ, no shutdown - superior DC accuracy but higher 5.5nV/√Hz noise and only 350kHz GBW. | Better for ultra-stable DC measurements (e.g., precision weight scales); insufficient bandwidth for >10kHz signal conditioning or fast-settling ADC drivers. | Choose for sub-µV offset drift requirements in industrial process control; avoid where 22MHz GBW or 0.0002% THD is mandatory. |
Compared with MAX4252EUA+, MAX4253EUB+T provides 7.3× higher bandwidth and integrated shutdown, enabling faster signal acquisition and lower standby power; versus OPA2333AIDR, it trades zero-drift stability for significantly lower noise and much higher speed - making it preferable for AC-coupled, wideband sensor interfaces.
Availability
MAX4253EUB+T is available at Aetrix Electronics and suitable for portable medical devices, wireless sensor networks, precision instrumentation, and battery-powered test equipment requiring stable component supply across extended temperature ranges.
Supply support for MAX4253EUB+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
Analog Devices is a global leader in high-performance analog, mixed-signal, and digital signal processing semiconductors, serving industrial, automotive, communications, and healthcare markets with precision signal chain solutions.
The MAX4249–MAX4257 family was designed specifically for low-power, low-noise, rail-to-rail signal conditioning in portable and battery-operated instrumentation - emphasizing THD, noise density, and supply current efficiency without sacrificing DC accuracy.
FAQ
What is the minimum stable gain for MAX4253EUB+T, and why does it matter?
The MAX4253EUB+T requires a minimum closed-loop gain of 10V/V for stable operation due to its decompensated internal architecture. This means it cannot be used in unity-gain buffer configurations without risking oscillation. Designers must configure feedback networks accordingly - for example, using RF = 90kΩ and RG = 10kΩ for 10V/V gain - ensuring phase margin remains ≥68° and preventing signal distortion or instability in precision applications.
Does MAX4253EUB+T support true ground-referenced input signals?
Yes, MAX4253EUB+T supports true ground-referenced inputs: its input common-mode voltage range extends to –0.2V (below ground) and up to VDD – 1.1V. This allows direct connection of sensors with outputs referenced to system ground - such as bridge-based pressure transducers or thermistor dividers - without level-shifting circuitry, preserving signal integrity and simplifying PCB layout in medical and industrial sensor interfaces.
How does the shutdown feature of MAX4253EUB+T function in practice?
The MAX4253EUB+T features two independent shutdown pins (SHDNA and SHDNB) that place each amplifier's output in high-impedance state and reduce its quiescent current to 0.5µA when pulled low (≤0.2×VDD). This enables selective channel disable - for example, powering down the reference buffer while keeping the signal channel active - reducing total system current in multi-function portable instruments without redesigning the analog signal path.
Can MAX4253EUB+T drive a 1000pF capacitive load directly?
No, MAX4253EUB+T is only guaranteed stable with capacitive loads up to 400pF. Driving 1000pF directly risks peaking and oscillation. To maintain stability, insert a series isolation resistor (RISO ≈ 150Ω, per Analog Devices' Figure 6) between the output and the load. This isolates the capacitor from the op amp's output stage, restoring phase margin while retaining DC accuracy - essential for driving long PCB traces or coaxial cables in test equipment interfaces.
What is the typical input offset voltage and its impact on precision measurements?
The MAX4253EUB+T has a typical input offset voltage of ±70µV (±0.07mV) over –40°C to +85°C. In a 10V/V gain configuration driving a 16-bit 3.3V ADC, this contributes ≤0.7 LSB of error at full scale. For higher-accuracy applications, system-level calibration can null residual offset; the low 0.3µV/°C tempco further minimizes drift-induced errors across operating temperature ranges in field-deployed instrumentation.
MAX4253EUB+T Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Package/Case:
- 10-TFSOP, 10-MSOP (0.118", 3.00mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Amplifier Type:
- General Purpose
- Number of Circuits:
- 2
- 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 (x2 Channels)
- 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:
- 10-uMAX/uSOP
MAX4253EUB+T FAQ
1.How can I place an order for MAX4253EUB+T through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX4253EUB+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 MAX4253EUB+T reliable?
The price and inventory of MAX4253EUB+T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX4253EUB+T is usually 5 days.
3.What payment methods are accepted for MAX4253EUB+T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX4253EUB+T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX4253EUB+T?
MAX4253EUB+T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX4253EUB+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 MAX4253EUB+T?
For technical support, including MAX4253EUB+T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX4253EUB+T requirements.
6.How does Aetrix verify that MAX4253EUB+T is sourced from the original manufacturer or authorized distributors?
All MAX4253EUB+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 MAX4253EUB+T meets industry standards.
7.What is the process for return or replacement of MAX4253EUB+T?
All MAX4253EUB+T units undergo pre-shipment inspection (PSI). If there is an issue with MAX4253EUB+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 MAX4253EUB+T part is unused and in its original packaging.
Return procedure for MAX4253EUB+T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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