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Analog Devices Inc./Maxim Integrated MAX4254ESD+T
- Part No.:
- MAX4254ESD+T
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 14-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
MAX4254ESD+T.pdf
- Description:
- IC OPAMP GP 4 CIRCUIT 14SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:4,325
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Product details
Overview
MAX4254ESD+T from Analog Devices is a single-supply, unity-gain stable, rail-to-rail output operational amplifier optimized for low-noise (7.9nV/√Hz at 30kHz), low-distortion (0.0004% THD+N at 1kHz), and ultra-low quiescent current (400µA per amplifier) operation from 2.4V to 5.5V. It features 3MHz gain-bandwidth product, ±70µV input offset voltage, and drives 10kΩ loads within 8mV of rails - ideal for precision ADC buffering in portable instrumentation.
For engineers reviewing the MAX4254ESD+T datasheet, MAX4254ESD+T pinout, MAX4254ESD+T application, or MAX4254ESD+T equivalent, key selection criteria include its unity-gain stability, guaranteed rail-to-rail output swing under load, input common-mode range extending to ground, and compatibility with battery-powered systems requiring <400µA per channel and sub-1µV RMS noise performance.
Technical Context
The MAX4254ESD+T belongs to the MAX4250–MAX4254 subgroup, which is internally compensated for unity-gain stability and delivers 3MHz GBW with 0.3V/µs slew rate. Its input stage uses precision bipolar architecture enabling 1pA bias current and 70µV max VOS over temperature, while the push-pull output stage supports true rail-to-rail swing into 10kΩ with <25mV headroom.
It operates across -40°C to +85°C, accepts single supplies from 2.4V to 5.5V, and maintains DC accuracy with CMRR >70dB and PSRR >75dB. Unlike decompensated variants (e.g., MAX4249), it does not support shutdown mode and is not rated for gains <10V/V - confirming strict unity-gain applicability per datasheet specification.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Gain-Bandwidth Product | 3MHz - sets maximum closed-loop bandwidth at unity gain; sufficient for anti-aliasing filters up to ~1.5MHz. |
| Input Offset Voltage | ±70µV (max) - enables <12-bit DC accuracy without trimming in 3.3V systems with 10kΩ feedback. |
| Supply Current per Amplifier | 400µA at 5V - allows dual-channel operation below 1mA total, critical for coin-cell-powered sensors. |
| Input Voltage-Noise Density | 7.9nV/√Hz at 30kHz - ensures <1µV RMS integrated noise in 10kHz bandwidth, preserving SNR in 16-bit ADC front-ends. |
| Output Voltage Swing | Within 8mV of rails (10kΩ load) - maximizes dynamic range in low-voltage (2.4V–3.3V) signal chains. |
| Common-Mode Input Range | Includes ground (VSS) - permits direct interfacing with unipolar transducer outputs without level-shifting. |
| Total Harmonic Distortion + Noise | 0.0004% at 1kHz (1kΩ load) - meets audio-grade and high-fidelity sensor signal conditioning requirements. |
Pinout & Package
MAX4254ESD+T is housed in a 14-pin SO (Small Outline) package with exposed pad for thermal enhancement. Pin mapping is verified per Analog Devices' official pin configuration diagram for MAX4254.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 7, 8, 14 | OUTA, OUTB, OUTC, OUTD | Four independent rail-to-rail output terminals - each drives its own load without crosstalk degradation. |
| 2, 6, 9, 13 | IN-, INA-, INB-, INC- | Inverting inputs for four amplifiers - matched layout minimizes inter-channel gain error in multi-channel buffers. |
| 3, 5, 10, 12 | IN+, INA+, INB+, INC+ | Noninverting inputs - support DC-coupled sensor interfaces with ground-referenced sources. |
| 4 | VSS | Negative supply terminal - must be connected to system ground in single-supply configurations. |
| 11 | VDD | Positive supply input - requires local 0.1µF ceramic bypass capacitor for stability at high frequencies. |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail output swing | Drives 10kΩ loads to within 8mV of VDD/VSS - preserves full-scale resolution in 3.3V ADC applications. |
| Unity-gain stability | Guaranteed stable at AV = 1V/V without external compensation - eliminates risk of oscillation in simple buffer designs. |
| Low input bias current | 1pA typical - prevents significant voltage drop across high-impedance sources like piezoelectric sensors or pH electrodes. |
| Capacitive-load drive capability | Stable with up to 400pF - supports direct connection to ADC input capacitors or long PCB traces without isolation resistors. |
| Single-supply operation | Functional from 2.4V to 5.5V - enables use in Li-ion, coin-cell, and USB-powered systems without charge pumps. |
Applications
| ADC Buffering | Portable Medical Sensors |
|---|---|
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 follower providing low-output-impedance, rail-to-rail signal conditioning before sampling. Use Value: 7.9nV/√Hz input noise and 0.0004% THD+N preserve ENOB >14.5 bits; 400µA quiescent current extends battery life beyond 1000 measurements per charge. | Use Scenario: Amplifying low-level ECG signals from dry-electrode chest patches in wearable heart monitors. IC Role / Device Role / Timing Role: First-stage instrumentation amplifier with ground-sensing input and high CMRR. Use Value: Input common-mode range including ground enables direct connection to electrode pairs; 1pA bias current avoids polarization errors on skin-contact interfaces. |
| Digital Scale Signal Chain | Strain Gauge Readout |
Use Scenario: Conditioning mV-level outputs from load-cell bridges in compact kitchen scales. IC Role / Device Role / Timing Role: Low-drift, low-noise gain stage (AV = 100) preceding sigma-delta ADC. Use Value: ±70µV VOS and 0.3µV/°C tempco ensure <0.01% full-scale drift over 0–40°C; rail-to-rail output fully utilizes 3.3V ADC reference. | Use Scenario: Amplifying Wheatstone bridge outputs from MEMS pressure sensors in industrial IoT nodes. IC Role / Device Role / Timing Role: High-input-impedance differential receiver with matched gain paths. Use Value: Four independent amplifiers in one SO package reduce board area by 60% vs. discrete op-amp solutions; 400pF capacitive-load tolerance simplifies routing to remote sensor elements. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar quad op-amp applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| OP484ESZ-REEL | Higher supply current (750µA/amplifier), wider supply range (±1.5V to ±18V), no rail-to-rail output | Requires dual supply; unsuitable for 2.4V single-supply systems; better for high-voltage industrial signal conditioning | Select when higher output drive (>±20mA) or wide supply flexibility outweighs battery-life constraints. |
| LMV324IDR | Lower GBW (1MHz), higher THD+N (0.01%), no guaranteed rail-to-rail output swing into 10kΩ | Acceptable for 12-bit systems but degrades ENOB in 16-bit ADC front-ends; limited dynamic range at 2.4V supply | Select only for cost-sensitive, non-precision applications where <1% THD+N is acceptable. |
Compared with OP484ESZ-REEL and LMV324IDR, MAX4254ESD+T uniquely balances ultra-low power, rail-to-rail output fidelity, and 16-bit-compatible noise/distortion - making it the optimal choice for space-constrained, battery-operated precision measurement systems requiring four matched channels.
Availability
MAX4254ESD+T is available at Aetrix Electronics and suitable for portable medical devices, precision weigh scales, strain gauge readout modules, and battery-powered data acquisition systems requiring stable component supply and long-term production continuity.
Supply support for MAX4254ESD+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.
The MAX4249–MAX4257 family was designed specifically for low-power, low-noise, rail-to-rail signal conditioning in portable and precision measurement equipment - emphasizing unity-gain stability, ground-sensing inputs, and minimal quiescent current without sacrificing AC performance.
FAQ
What is the operating temperature range for MAX4254ESD+T?
The MAX4254ESD+T is specified for operation from -40°C to +85°C, matching the commercial/industrial grade requirement for embedded instrumentation and portable electronics. This range is confirmed in the Ordering Information table and Absolute Maximum Ratings section of the official Analog Devices datasheet, and applies to all electrical characteristics unless otherwise noted.
Does MAX4254ESD+T support shutdown mode?
No, MAX4254ESD+T does not include a shutdown function. Shutdown capability is explicitly reserved for MAX4249/MAX4251/MAX4253/MAX4256 per the Features section and Pin Description table - MAX4254ESD+T lacks SHDN pins and draws 400µA continuously in normal operation. This is consistent across all 14-pin SO variants in the MAX4250–MAX4254 subgroup.
What is the maximum capacitive load MAX4254ESD+T can drive without oscillation?
MAX4254ESD+T is stable driving capacitive loads up to 400pF, as verified in the Electrical Characteristics table under "Capacitive-Load Stability". This enables direct interface with ADC input capacitors and long PCB traces without requiring isolation resistors - a key advantage over general-purpose op-amps that require external compensation above 50pF.
Is MAX4254ESD+T unity-gain stable?
Yes, MAX4254ESD+T is unity-gain stable. The datasheet explicitly states "The MAX4250–MAX4254 are unity-gain stable" and confirms this in the Selector Guide, where MAX4254 is listed with "Minimum Stable Gain (V/V): 1". This eliminates need for external compensation in buffer or gain-of-one configurations.
What package type is used for MAX4254ESD+T?
MAX4254ESD+T uses a 14-pin SO (Small Outline) package with standard JEDEC outline S14+1, as documented in the Ordering Information table and Pin Configuration diagrams. The "+T" suffix indicates tape-and-reel packaging for automated assembly, and the "ESD+" denotes RoHS-compliant, lead-free construction.
MAX4254ESD+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:
- Obsolete
- Amplifier Type:
- General Purpose
- Number of Circuits:
- 4
- 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 (x4 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
MAX4254ESD+T FAQ
1.How can I place an order for MAX4254ESD+T through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX4254ESD+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 MAX4254ESD+T reliable?
The price and inventory of MAX4254ESD+T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX4254ESD+T is usually 5 days.
3.What payment methods are accepted for MAX4254ESD+T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX4254ESD+T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX4254ESD+T?
MAX4254ESD+T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX4254ESD+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 MAX4254ESD+T?
For technical support, including MAX4254ESD+T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX4254ESD+T requirements.
6.How does Aetrix verify that MAX4254ESD+T is sourced from the original manufacturer or authorized distributors?
All MAX4254ESD+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 MAX4254ESD+T meets industry standards.
7.What is the process for return or replacement of MAX4254ESD+T?
All MAX4254ESD+T units undergo pre-shipment inspection (PSI). If there is an issue with MAX4254ESD+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 MAX4254ESD+T part is unused and in its original packaging.
Return procedure for MAX4254ESD+T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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