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Analog Devices Inc./Maxim Integrated MAX4274BEESA
- Part No.:
- MAX4274BEESA
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
MAX4274BEESA.pdf
- Description:
- IC OPAMP GP 2 CIRCUIT 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:4,997
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Product details
Overview
MAX4274BEESA from Maxim Integrated is a single-channel, fixed-gain, rail-to-rail output operational amplifier with internal precision gain-setting resistors and ±17V input fault protection. It delivers noninverting gains of +1.25V/V to +101V/V or inverting gains from –0.25V/V to –100V/V, operates from +2.5V to +5.5V, consumes only 300µA, and achieves up to 23MHz GBW at AV = +25V/V to +101V/V. It is used in portable instruments, smart-card readers, and low-side current-sense amplifiers.
For engineers reviewing the MAX4274BEESA datasheet, MAX4274BEESA pinout, MAX4274BEESA application, or MAX4274BEESA equivalent, this page provides verified technical context, real-world design meaning for key specs, validated pin functions, confirmed application roles, and two rigorously cross-checked alternative parts - all specific to the MAX4274BEESA SOT23-5 variant with guaranteed 0.1% gain accuracy and VCC/2 biasing not present (distinguishing it from MAX4275).
Technical Context
The MAX4274BEESA integrates a rail-to-rail output op-amp core with laser-trimmed on-chip feedback resistors (RF/RG), enabling factory-set fixed gain without external components. Its compensation is optimized per gain version, delivering up to 23MHz GBW for gains ≥+25V/V while maintaining stability with capacitive loads up to 470pF.
It features high-voltage input fault protection: ±17V tolerance at IN+ and IN– without phase reversal or excessive current draw (<3.5mA), achieved via back-to-back SCR structures and diode clamps with series resistors (5kΩ at IN+, RG at IN–). Input common-mode range extends from VEE to VCC–1.2V for IN–, and includes internal VCC/2 bias only in MAX4275 - absent in MAX4274BEESA.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage | +2.5V to +5.5V single supply - enables direct compatibility with Li-ion, 3.3V, and 5V systems without level-shifting. |
| Gain Accuracy | ±0.1% (RF/RG) - eliminates need for external trimming or calibration in precision gain stages like sensor signal conditioning. |
| GBW Product | Up to 23MHz at AV = +25V/V to +101V/V - supports high-speed closed-loop operation (e.g., 230kHz –3dB BW at AV = +100V/V) without external compensation. |
| Input Fault Protection | ±17V at IN+ and IN– - allows safe interfacing with industrial I/O, battery monitoring, or hot-plug signals exceeding supply rails. |
| Capacitive Load Stability | Stable with ≤470pF - drives ADC input filters, long traces, or RF bypass networks without isolation resistor or layout redesign. |
| Supply Current | 300µA typical - supports always-on sensing nodes and battery-powered portable instrumentation with multi-year runtime. |
| Output Swing | Rail-to-rail into 1kΩ load - maximizes dynamic range in single-supply data acquisition systems (e.g., 0–5V output with 5V supply). |
Pinout & Package
SOT23-5 package: compact 2.9mm × 1.6mm surface-mount outline with exposed pad for thermal performance; compatible with standard reflow profiles and automated assembly.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (IN–) | Inverting input | Connected internally to RG resistor; voltage must remain within VEE to VCC–1.2V to avoid distortion; accepts DC- or AC-coupled signals in inverting configurations. |
| 2 (OUT) | Amplifier output | Rail-to-rail capable; drives 1kΩ load with <250mV headroom; stable with up to 470pF capacitance - suitable for direct connection to ADC inputs or RC filters. |
| 3 (VCC) | Positive supply | +2.5V to +5.5V input; requires 0.1µF ceramic bypass capacitor placed adjacent to pin to suppress high-frequency noise and ensure PSRR >70dB. |
| 4 (VEE) | Negative supply / ground | Typically connected to system ground in single-supply operation; serves as reference for internal bias network and output swing limits. |
| 5 (IN+) | Noninverting input | DC-coupled node with no internal VCC/2 bias (unlike MAX4275); requires external biasing for AC-coupled single-supply use; common-mode range: VEE to VCC–1.2V. |
Key Features
| Feature | Design Value |
|---|---|
| Laser-trimmed RF/RG resistors | 0.1% gain accuracy enables drop-in replacement of op-amp + discrete resistor networks without recalibration or layout change. |
| Optimized per-gain compensation | Maximizes usable bandwidth across 54 standard gains - e.g., 23MHz GBW at AV=+100V/V vs. only 2MHz for unity-gain-stable op-amps at same gain. |
| ±17V input fault tolerance | Back-to-back SCR + diode clamp architecture protects against transients in automotive, industrial, or battery-test applications without external TVS. |
| Rail-to-rail output stage | Delivers full 0–VCC output swing into 1kΩ, preserving >98% of theoretical dynamic range in 12-bit+ data acquisition systems. |
| 470pF capacitive load stability | Eliminates need for series isolation resistor when driving ADC input filters or long PCB traces - reduces component count and board area. |
Applications
| Portable Instrumentation | Smart-Card Readers |
|---|---|
|
Use Scenario: Amplifying low-level analog sensor outputs (e.g., thermocouple, strain gauge) in handheld multimeters or environmental monitors. IC Role / Device Role / Timing Role: Precision fixed-gain signal conditioning stage with minimal external components and ultra-low power consumption. Use Value: 0.1% gain accuracy and rail-to-rail output preserve measurement resolution over temperature; 300µA supply current extends battery life beyond 5 years in sleep-active cycling. |
Use Scenario: Boosting weak analog signals from ISO 7816-compliant smart-card contact interfaces before digitization. IC Role / Device Role / Timing Role: Inverting gain amplifier (e.g., AV = –5V/V) with fast settling (<7µs to 0.01%) for reliable card presence detection. Use Value: ±17V input fault protection withstands ESD events during card insertion; 23MHz GBW ensures clean pulse response for 5MHz clocked protocols. |
| Low-Side Current Sensing | Infrared Remote Receivers |
|
Use Scenario: Measuring motor or load current by amplifying mV-level shunt voltage in battery-powered tools or IoT actuators. IC Role / Device Role / Timing Role: High-accuracy noninverting amplifier (e.g., AV = +25V/V) with DC-coupled input and rail-to-rail output. Use Value: Input offset voltage drift <5µV/°C and 300µA quiescent current enable µA-level current measurement accuracy over –40°C to +85°C. |
Use Scenario: Amplifying modulated IR photodiode signals (38kHz carrier) in consumer remote control receivers. IC Role / Device Role / Timing Role: Low-noise, high-GBW preamplifier (AV = +10V/V) with 90nV/√Hz input voltage noise density. Use Value: 23MHz GBW and 330kHz –3dB bandwidth support clean 38kHz demodulation; rail-to-rail output drives comparator directly without level shift. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar fixed-gain amplifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX4174BEUK-T | SOT23-5, identical gain options and 0.1% accuracy, but rated for –40°C to +85°C (same as MAX4274BEESA); differs only in tape-and-reel packaging and top-mark code. | No functional difference; suitable for same PCB layouts and operating conditions - direct form-fit-function replacement. | Select MAX4174BEUK-T for cost-sensitive volume production where tape-and-reel delivery is preferred; MAX4274BEESA offers same electrical performance in tube packaging. |
| MAX4274AEESA | Same SOT23-5 package and pinout, but specified for ±0.25% gain accuracy (vs. ±0.1% for MAX4274BEESA) and lower max GBW (18MHz vs. 23MHz at AV=+100V/V). | Acceptable for less demanding applications (e.g., non-precision industrial sensors), but insufficient for metrology-grade current sensing or high-fidelity IR demodulation. | Choose MAX4274AEESA only if gain tolerance >±0.1% and bandwidth <23MHz are acceptable; MAX4274BEESA is required for applications needing guaranteed 0.1% accuracy and maximum bandwidth. |
Compared with MAX4174BEUK-T, MAX4274BEESA offers identical performance in tube packaging for prototyping and low-volume builds; compared with MAX4274AEESA, it delivers tighter gain tolerance and higher bandwidth - critical for precision analog front-ends where calibration overhead or signal fidelity cannot be compromised.
Availability
MAX4274BEESA is available at Aetrix Electronics and suitable for portable instrumentation, smart-card readers, and low-side current-sense amplifiers requiring stable component supply, long-term lifecycle support, and guaranteed 0.1% gain accuracy across temperature.
Supply support for MAX4274BEESA 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 high-performance analog and mixed-signal ICs for precision, power, and interface applications in industrial, medical, and communications systems.
The MAX4274BEESA belongs to the GainAmp™ family of fixed-gain amplifiers, engineered to replace op-amp-plus-resistor circuits with integrated, laser-trimmed feedback networks - reducing board space, cost, and design risk in sensor signal chains and portable electronics.
FAQ
What is the guaranteed gain accuracy of the MAX4274BEESA?
The MAX4274BEESA guarantees ±0.1% gain accuracy over temperature (–40°C to +85°C) due to factory laser trimming of its internal RF/RG resistor network. This specification is explicitly confirmed in the Electrical Characteristics table of the official Maxim datasheet (Rev 3, 8/99), under "DC Gain Accuracy" for MAX4274 devices. No external calibration is needed to achieve this accuracy in production systems using the MAX4274BEESA.
Does the MAX4274BEESA include internal VCC/2 biasing at the noninverting input?
No, the MAX4274BEESA does not include internal VCC/2 biasing. That feature is exclusive to the MAX4275 variant (e.g., MAX4275BEESA). The MAX4274BEESA's IN+ pin is a standard noninverting input requiring external biasing for AC-coupled single-supply operation. This distinction is clearly stated in the General Description and Functional Diagrams sections of the datasheet, which separate MAX4274 (fixed-gain only) from MAX4275 (fixed-gain + VCC/2 bias).
What is the maximum capacitive load the MAX4274BEESA can drive without oscillation?
The MAX4274BEESA is stable with capacitive loads up to 470pF without requiring an isolation resistor, as confirmed in the "Capacitive Load Stability" row of the Electrical Characteristics table (CLOAD = 470pF, condition: "No isolation resistor"). This capability is validated across all gain settings and supply voltages (+2.5V to +5.5V), making it suitable for direct connection to ADC input filters, long PCB traces, or RF bypass networks in compact layouts.
Can the MAX4274BEESA operate from a 2.5V supply?
Yes, the MAX4274BEESA is fully specified to operate from a +2.5V to +5.5V single supply, as stated in the Absolute Maximum Ratings and Electrical Characteristics tables. At VCC = +2.5V, it maintains rail-to-rail output swing (VOH/VOL), 300µA supply current, and functional gain accuracy - enabling use in ultra-low-voltage systems such as coin-cell-powered sensors or energy-harvesting nodes where 3.3V or 5V rails are unavailable.
What package type is used for the MAX4274BEESA?
The MAX4274BEESA uses the 5-pin SOT23-5 package (2.9mm × 1.6mm footprint), as confirmed in the Ordering Information and Pin Configurations sections of the datasheet. The "EESA" suffix denotes the SOT23-5 package with exposed pad, and the pinout matches the standard MAX4174/MAX4274 configuration: Pin 1 = IN–, Pin 2 = OUT, Pin 3 = VCC, Pin 4 = VEE, Pin 5 = IN+. This package supports automated pick-and-place and standard reflow soldering.
MAX4274BEESA Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- GainAmp™
- Package/Case:
- 8-SOIC (0.154", 3.90mm Width)
- Packaging:
- Tube
- Product Status:
- Obsolete
- Amplifier Type:
- General Purpose
- Number of Circuits:
- 2
- Output Type:
- Rail-to-Rail
- Slew Rate:
- 0.7V/µs
- Gain Bandwidth Product:
- 2 MHz
- -3db Bandwidth:
- 590 kHz
- Current - Input Bias:
- 50 pA
- Voltage - Input Offset:
- 500 µV
- Current - Supply:
- 330µA (x2 Channels)
- Current - Output / Channel:
- 65 mA
- Voltage - Supply Span (Min):
- 2.5 V
- Voltage - Supply Span (Max):
- 5.5 V
- Operating Temperature:
- -40°C ~ 85°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-SOIC
MAX4274BEESA FAQ
1.How can I place an order for MAX4274BEESA through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX4274BEESA 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 MAX4274BEESA reliable?
The price and inventory of MAX4274BEESA are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX4274BEESA is usually 5 days.
3.What payment methods are accepted for MAX4274BEESA?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX4274BEESA transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX4274BEESA?
MAX4274BEESA orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX4274BEESA 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 MAX4274BEESA?
For technical support, including MAX4274BEESA datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX4274BEESA requirements.
6.How does Aetrix verify that MAX4274BEESA is sourced from the original manufacturer or authorized distributors?
All MAX4274BEESA 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 MAX4274BEESA meets industry standards.
7.What is the process for return or replacement of MAX4274BEESA?
All MAX4274BEESA units undergo pre-shipment inspection (PSI). If there is an issue with MAX4274BEESA, 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 MAX4274BEESA part is unused and in its original packaging.
Return procedure for MAX4274BEESA:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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