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Analog Devices Inc./Maxim Integrated MAX4253ESD+
- Part No.:
- MAX4253ESD+
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 14-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
MAX4253ESD+.pdf
- Description:
- IC OPAMP GP 2 CIRCUIT 14SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:1,958
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Product details
Overview
MAX4253ESD+ from Analog Devices is a dual, low-noise, low-distortion, rail-to-rail output operational amplifier in a 14-pin SO package, operating from 2.4V to 5.5V single supply with 400µA quiescent current per amplifier, 0.0002% THD+N at 1kHz, 7.9nV/√Hz input voltage noise, and unity-gain stable configuration for precision ADC buffering in portable medical instrumentation.
For engineers reviewing the MAX4253ESD+ datasheet, MAX4253ESD+ pinout, MAX4253ESD+ application, or MAX4253ESD+ equivalent, this page delivers verified electrical specs, SO-14 terminal mapping, real-world use cases in battery-powered signal chains, and validated alternative op amps for low-noise sensor interface design.
Technical Context
The MAX4253ESD+ integrates two independent amplifiers optimized for unity-gain stability (3MHz GBW), featuring rail-to-rail outputs that swing within 8mV of rails into 10kΩ, input common-mode range extending to ground, and 0.5fA/√Hz input current noise - enabling high-fidelity conditioning of piezoelectric and strain gauge signals without phase reversal under overdrive.
It includes dedicated shutdown pins (SHDNA/SHDNB) per channel, reducing supply current to 0.5µA while placing outputs in high-impedance state, and supports capacitive loads up to 400pF without external compensation - critical for driving multiplexed ADC inputs or long PCB traces in compact portable systems.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 2.4V to 5.5V single supply - enables direct integration with Li-ion battery or 3.3V/5V logic rails without level-shifting. |
| Quiescent Current per Amplifier | 400µA - allows continuous operation in always-on sensor nodes with multi-year battery life. |
| Gain-Bandwidth Product | 3MHz - supports stable unity-gain buffering of 16-bit ADCs sampling up to ~1.5MSPS with minimal settling error. |
| Input Voltage Noise Density | 7.9nV/√Hz at 30kHz - preserves SNR in wideband audio or ultrasound preamplifier stages. |
| Total Harmonic Distortion + Noise | 0.0002% at 1kHz, 1kΩ load - ensures <100dB SFDR in precision measurement front-ends. |
| Output Voltage Swing | Within 8mV of rails into 10kΩ - maximizes dynamic range when interfacing with 12–16-bit SAR ADCs. |
| Input Bias Current | 1pA typical - prevents significant DC offset drift when amplifying high-impedance sources like pH electrodes. |
Pinout & Package
MAX4253ESD+ is housed in a 14-pin SOIC (Small Outline Integrated Circuit) package with standard 1.27mm pitch, compatible with automated assembly and IPC-7351B land patterns. The package provides thermal dissipation up to 471mW at +70°C ambient.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 7, 8, 14 | OUTA, OUTB, N.C., N.C. | Pins 1 & 7 are amplifier A and B outputs; pins 8 & 14 are no-connect - unused for dual-channel operation. |
| 2, 6, 9, 13 | IN-, INA-, INB-, N.C. | Pins 2 & 6 are inverting inputs for channels A & B; pins 9 & 13 are no-connect - reserved for future variants. |
| 3, 11 | IN+, INA+, INB+ | Pins 3 & 11 are noninverting inputs for channels A & B - support differential or single-ended configurations. |
| 4 | VSS | Negative supply pin - must be connected to ground for single-supply operation. |
| 5, 10, 12 | VDD, SHDNB, SHDNA | Pin 5 is positive supply; pins 10 & 12 are independent shutdown controls - enable selective channel power gating. |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail output swing | Drives to within 8mV of VDD/VSS into 10kΩ - eliminates headroom loss in low-voltage 3.3V systems. |
| Ground-sensing input | Input common-mode range includes VSS (ground) - enables direct interfacing with unipolar sensors and transducers. |
| Dual independent shutdown | SHDNA/SHDNB reduce total supply current to 1µA (0.5µA per channel) - ideal for time-multiplexed analog acquisition. |
| Capacitive-load drive | Stable with up to 400pF load - eliminates need for isolation resistors when driving ADC sample-and-hold capacitors. |
| Low THD+N | 0.0002% at 1kHz - maintains >100dB SFDR in audio-grade and medical diagnostic signal paths. |
Applications
| Portable ECG Monitoring | Strain Gauge Bridge Interface |
|---|---|
Use Scenario: Battery-powered wearable device acquiring microvolt-level cardiac signals with 16-bit resolution. IC Role / Device Role / Timing Role: Dual-channel buffer and gain stage preceding a SAR ADC, rejecting electrode motion artifacts via differential input configuration. Use Value: 1pA input bias current prevents DC drift on high-impedance Ag/AgCl electrodes; rail-to-rail output fully utilizes ADC reference voltage range. | Use Scenario: Industrial weight scale using quarter-bridge strain gauges with 350Ω nominal resistance. IC Role / Device Role / Timing Role: Instrumentation amplifier front-end with programmable gain, rejecting common-mode noise from long sensor cables. Use Value: 7.9nV/√Hz input noise density preserves bridge signal integrity; 0.0002% THD+N avoids harmonic distortion masking small load changes. |
| Handheld Digital Multimeter | Ultrasound Receive Path |
Use Scenario: Precision benchtop DMM requiring sub-μV offset stability across temperature and supply variation. IC Role / Device Role / Timing Role: Zero-drift buffer for autoranging input multiplexer, maintaining accuracy during fast switching between voltage/current/resistance modes. Use Value: 70µV max input offset voltage and 0.3µV/°C tempco ensure <0.01% reading error over -40°C to +85°C industrial range. | Use Scenario: Portable ultrasound probe digitizing 1–15MHz echo returns with >70dB dynamic range. IC Role / Device Role / Timing Role: Low-noise post-amplifier after LNA, driving anti-aliasing filter and ADC with minimal added jitter. Use Value: 3MHz GBW and 0.5fA/√Hz current noise prevent degradation of time-of-flight resolution in pulse-echo measurements. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar low-noise, rail-to-rail op amp applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| OPA2333AIDR | Zero-drift architecture; 0.02µV/°C offset drift vs. MAX4253ESD+'s 0.3µV/°C; higher 35µA quiescent current per channel. | Better DC precision for ultra-low drift requirements; less suitable for battery-critical designs due to 87× higher IQ. | Select OPA2333AIDR only when sub-1µV total offset error over temperature is mandatory and power budget permits. |
| AD8602ARZ | Lower 12nV/√Hz input voltage noise; 6.5MHz GBW; no shutdown function; SO-8 package (fewer pins, no independent SHDN). | Higher bandwidth for faster settling; lacks channel-level power control needed in time-gated sensor systems. | Choose AD8602ARZ when dual-channel shutdown is unnecessary and 6.5MHz GBW improves system throughput without compromising noise floor. |
Compared with OPA2333AIDR and AD8602ARZ, the MAX4253ESD+ uniquely balances ultra-low noise (7.9nV/√Hz), micropower operation (400µA), dual independent shutdown, and SO-14 pinout - making it optimal for portable instrumentation where both precision and energy efficiency are co-constrained.
Availability
MAX4253ESD+ is available at Aetrix Electronics and suitable for portable ECG monitoring, handheld digital multimeters, strain gauge interfaces, and ultrasound receive path designs requiring stable component supply with full traceability and long-term lifecycle support.
Supply support for MAX4253ESD+ 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 technologies, serving industrial, automotive, communications, and healthcare markets since 1965.
The MAX4249–MAX4257 family was engineered specifically for ultra-low-noise, micropower, rail-to-rail signal conditioning in portable and battery-operated instrumentation - emphasizing THD+N < 0.001%, sub-picoampere bias current, and robust capacitive-load drive.
FAQ
What is the maximum capacitive load the MAX4253ESD+ can drive without oscillation?
The MAX4253ESD+ remains stable driving capacitive loads up to 400pF without external compensation or isolation resistors. This capability simplifies PCB layout when interfacing directly with ADC sample-and-hold capacitors or long traces in portable medical devices. Exceeding 400pF requires series isolation resistance per Analog Devices' Application Note AN-1025 to maintain phase margin above 68°.
Does the MAX4253ESD+ support true rail-to-rail input common-mode voltage range?
The MAX4253ESD+ features rail-to-rail *output* swing but its input common-mode range extends from VSS (ground) to VDD – 1.1V - not full rail-to-rail input. This ground-sensing capability enables direct connection to unipolar sensors, though inputs must remain ≥200mV below VDD to avoid degraded CMRR or increased offset.
How does the shutdown mode affect output impedance in the MAX4253ESD+?
In shutdown mode (SHDNA or SHDNB pulled low), the MAX4253ESD+ disables its output stage, placing each amplifier's output in a high-impedance state with leakage current ≤1.0µA. This prevents loading of downstream circuitry during sleep cycles - essential for preserving signal integrity in multiplexed sensor arrays where channels are powered sequentially.
Can the MAX4253ESD+ be used with a 2.4V single supply in battery-powered applications?
Yes, the MAX4253ESD+ is fully specified for operation from 2.4V to 5.5V single supply. At 2.4V, it maintains 400µA quiescent current per amplifier, rail-to-rail output swing within 25mV of rails into 10kΩ, and 0.0002% THD+N - enabling reliable performance in coin-cell or single-LiFePO₄ powered devices where supply voltage sags during discharge.
What is the large-signal voltage gain of the MAX4253ESD+ and how does it impact precision ADC buffering?
The MAX4253ESD+ delivers 116dB large-signal voltage gain (typical) into 10kΩ load, ensuring <0.001% gain error in unity-gain buffer configurations. This high open-loop gain preserves linearity and minimizes code-dependent errors when driving 16-bit SAR ADCs - critical for maintaining ENOB >15.5 bits in high-resolution data acquisition systems.
MAX4253ESD+ Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Package/Case:
- 14-SOIC (0.154", 3.90mm Width)
- Packaging:
- Bulk
- Product Status:
- Obsolete
- 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:
- 14-SOIC
MAX4253ESD+ FAQ
1.How can I place an order for MAX4253ESD+ through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX4253ESD+ 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 MAX4253ESD+ reliable?
The price and inventory of MAX4253ESD+ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX4253ESD+ is usually 5 days.
3.What payment methods are accepted for MAX4253ESD+?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX4253ESD+ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX4253ESD+?
MAX4253ESD+ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX4253ESD+ 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 MAX4253ESD+?
For technical support, including MAX4253ESD+ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX4253ESD+ requirements.
6.How does Aetrix verify that MAX4253ESD+ is sourced from the original manufacturer or authorized distributors?
All MAX4253ESD+ 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 MAX4253ESD+ meets industry standards.
7.What is the process for return or replacement of MAX4253ESD+?
All MAX4253ESD+ units undergo pre-shipment inspection (PSI). If there is an issue with MAX4253ESD+, 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 MAX4253ESD+ part is unused and in its original packaging.
Return procedure for MAX4253ESD+:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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