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Analog Devices Inc./Maxim Integrated MAX4174AOEUK+T
- Part No.:
- MAX4174AOEUK+T
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- SC-74A, SOT-753
- Datasheet:
-
MAX4174AOEUK+T.pdf
- Description:
- IC OPAMP GP 1 CIRCUIT SOT23-5
- Quantity:
- Payment:
- Shipping:
Inventory:3,628
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Product details
Overview
MAX4174AOEUK+T from Maxim Integrated is a single-channel, noninverting fixed-gain amplifier with internal precision resistors, delivering +5V/V gain, 0.1% gain accuracy, rail-to-rail output swing, and operation from +2.5V to +5.5V supply. It consumes only 300µA and supports low-side current-sense and photodiode preamplifier applications in portable instrumentation.
For engineers reviewing the MAX4174AOEUK+T datasheet, MAX4174AOEUK+T pinout, MAX4174AOEUK+T application, or MAX4174AOEUK+T equivalent, key selection criteria include guaranteed ±17V input fault protection, 23MHz GBW product at AV = +25V/V, stability with 470pF capacitive loads, and SOT23-5 package compatibility for space-constrained designs.
Technical Context
The MAX4174AOEUK+T integrates a rail-to-rail output op-amp core with laser-trimmed on-chip feedback resistors (RF/RG), enabling factory-set noninverting gain of +5V/V without external components. Its internal compensation is optimized specifically for this gain, achieving 330kHz –3dB bandwidth and 23MHz GBW product.
Input stage features back-to-back SCR structures and diode clamps, allowing ±17V fault tolerance at IN−/IN+ relative to VEE while limiting input current to <3.5mA. The inverting input connects directly to RG, constraining its voltage range to within supply rails to prevent distortion.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Gain | +5V/V noninverting, fixed and factory-trimmed - eliminates external resistor layout and matching errors |
| Gain Accuracy | ±0.1% - ensures precise signal scaling without calibration in production systems |
| Supply Voltage Range | +2.5V to +5.5V - supports Li-ion battery-powered and 3.3V/5V logic-compatible systems |
| Supply Current | 300µA typical - enables ultra-low-power operation in always-on sensor front-ends |
| –3dB Bandwidth | 330kHz at AV = +5V/V - sufficient for DC-coupled current sensing and slow analog signal conditioning |
| Input Fault Protection | ±17V on IN−/IN+ - protects against transient overvoltage in industrial and automotive interface circuits |
| Capacitive Load Stability | Stable up to 470pF - drives long traces or ADC input capacitance without isolation resistor |
Pinout & Package
SOT23-5 surface-mount package (2.9mm × 1.6mm × 1.1mm), thermally enhanced with exposed pad (not electrically connected), rated for –40°C to +85°C ambient operation.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (IN−) | Inverting input terminal | Connected internally to RG; must remain within VEE to VCC to avoid clipping or distortion |
| 2 (OUT) | Amplifier output | Rail-to-rail capable; drives 1kΩ load with <250mV headroom at both rails |
| 3 (VCC) | Positive supply | Accepts +2.5V to +5.5V; requires 0.1µF bypass capacitor to ground near pin |
| 4 (VEE) | Negative supply / ground reference | Typically tied to GND in single-supply use; defines lower rail for common-mode and output swing |
| 5 (IN+) | Noninverting input terminal | DC-biased externally; not internally biased (unlike MAX4175); supports DC-coupled configurations |
Key Features
| Feature | Design Value |
|---|---|
| Laser-trimmed RF/RG network | Enables +5V/V gain with 0.1% accuracy - replaces discrete op-amp + resistor pair with guaranteed performance |
| Rail-to-rail output stage | Delivers >4.2Vp-p swing on +5V supply into 100kΩ - maximizes dynamic range in low-voltage systems |
| ±17V input fault tolerance | Prevents phase reversal or latch-up during ESD or surge events - reduces need for external TVS diodes |
| 470pF capacitive load stability | Eliminates series isolation resistor in most PCB layouts - simplifies routing and improves step response fidelity |
| Low 300µA quiescent current | Supports battery life >10 years in 10µA average-current sensor nodes - critical for IoT edge devices |
Applications
| Portable Instrumentation | Smart-Card Readers |
|---|---|
|
Use Scenario: Signal conditioning of low-level analog sensor outputs (e.g., thermocouple, RTD) in handheld multimeters and data loggers. IC Role / Device Role / Timing Role: Noninverting fixed-gain amplifier providing precise +5V/V amplification before ADC sampling. Use Value: Eliminates gain-setting resistor mismatch error and layout sensitivity, improving measurement repeatability across units. |
Use Scenario: Amplifying weak analog signals from contactless smart-card RF coupling coils. IC Role / Device Role / Timing Role: Low-noise preamplifier stage boosting microvolt-level card response signals prior to demodulation. Use Value: 90nV/√Hz input noise density and rail-to-rail output ensure high SNR without external biasing components. |
| Low-Side Current-Sense | Photodiode Preamps |
|
Use Scenario: Measuring load current via shunt resistor placed between load and ground in power management ICs. IC Role / Device Role / Timing Role: High-accuracy noninverting amplifier converting mV-level shunt voltage to scalable output. Use Value: ±17V input fault rating withstands load-dump transients; 0.1% gain accuracy enables ±0.5% current measurement. |
Use Scenario: Converting nanoamp-level photocurrent from PIN photodiodes into measurable voltage in optical encoders or IR receivers. IC Role / Device Role / Timing Role: Transimpedance-capable amplifier (with external feedback) or fixed-gain post-amplifier for photodiode voltage mode. Use Value: Input bias current <±10pA minimizes dark-current error; 300µA supply current extends battery runtime. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar fixed-gain amplifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX4174AUE+T | SOT23-5 package, identical +5V/V gain and electrical specs; differs only in tape-and-reel packaging (no +T suffix in part marking) | No functional difference; suitable for same PCB footprint and schematic | Select when standard reel packaging is preferred over cut-tape; identical performance and qualification. |
| MAX4274AUE+T | Dual-channel version in 8-pin µMAX; shares same +5V/V per channel, 0.1% gain accuracy, and ±17V fault protection | Enables dual-signal conditioning (e.g., differential current sense) in same board area as two single-channel devices | Choose for space-constrained dual-channel needs; requires updated layout but offers 50% board-area reduction vs. two MAX4174AOEUK+T. |
Compared with MAX4174AUE+T, the MAX4174AOEUK+T offers identical electrical behavior with verified cut-tape delivery; versus MAX4274AUE+T, it trades channel count for smaller footprint and lower BOM count in single-channel systems.
Availability
MAX4174AOEUK+T is available at Aetrix Electronics and suitable for portable instrumentation, smart-card readers, and low-side current-sense applications requiring stable component supply, long-term lifecycle support, and guaranteed traceable sourcing.
Supply support for MAX4174AOEUK+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
Maxim Integrated (now part of Analog Devices) designs precision analog and mixed-signal ICs for power, sensing, and interface applications in industrial, medical, and consumer systems.
The MAX4174AOEUK+T belongs to the GainAmp™ family of fixed-gain amplifiers, engineered to replace op-amp-plus-resistor configurations with guaranteed accuracy, reduced board area, and simplified design-in for DC-coupled signal conditioning.
FAQ
What is the exact gain configuration of the MAX4174AOEUK+T?
The MAX4174AOEUK+T is a noninverting fixed-gain amplifier with precisely trimmed internal resistors set to deliver +5V/V gain. This value is laser-trimmed during manufacturing and guaranteed at ±0.1% accuracy across temperature, eliminating the need for external gain-setting components in the MAX4174AOEUK+T circuit implementation.
Does the MAX4174AOEUK+T include internal VCC/2 biasing at the noninverting input?
No, the MAX4174AOEUK+T does not include internal VCC/2 biasing. That feature is exclusive to the MAX4175/MAX4275 variants. The MAX4174AOEUK+T requires external DC biasing of the IN+ pin for single-supply AC-coupled operation, making it suitable for DC-coupled applications where precise input reference control is needed.
What is the maximum capacitive load the MAX4174AOEUK+T can drive without oscillation?
The MAX4174AOEUK+T is stable driving capacitive loads up to 470pF without requiring an external isolation resistor. This specification is validated under standard test conditions (VCC = +5V, RL = 100kΩ) and enables direct connection to ADC inputs, long PCB traces, or filtering networks without compromising transient response or stability in the MAX4174AOEUK+T application.
Can the MAX4174AOEUK+T be used in dual-supply configurations?
Yes, the MAX4174AOEUK+T operates from ±1.25V to ±2.75V dual supplies, in addition to its primary +2.5V to +5.5V single-supply range. When used with dual supplies, VEE is connected to the negative rail, enabling true bipolar input signal handling and ground-referenced DC-coupled designs - all while retaining full specification compliance for the MAX4174AOEUK+T.
What is the input fault protection rating for the MAX4174AOEUK+T?
The MAX4174AOEUK+T provides ±17V input fault protection on both IN− and IN+ pins relative to VEE. This is achieved via integrated back-to-back SCR structures and diode clamps, limiting fault current to less than 3.5mA. This robustness allows the MAX4174AOEUK+T to survive transient overvoltages in noisy industrial or automotive environments without external protection components.
MAX4174AOEUK+T Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- GainAmp™
- Package/Case:
- SC-74A, SOT-753
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Amplifier Type:
- General Purpose
- Number of Circuits:
- 1
- Output Type:
- Rail-to-Rail
- Slew Rate:
- 0.7V/µs
- Gain Bandwidth Product:
- -
- -3db Bandwidth:
- 1.7 MHz
- Current - Input Bias:
- 50 pA
- Voltage - Input Offset:
- 500 µV
- Current - Supply:
- 330µA
- 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:
- SOT-23-5
MAX4174AOEUK+T FAQ
1.How can I place an order for MAX4174AOEUK+T through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX4174AOEUK+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 MAX4174AOEUK+T reliable?
The price and inventory of MAX4174AOEUK+T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX4174AOEUK+T is usually 5 days.
3.What payment methods are accepted for MAX4174AOEUK+T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX4174AOEUK+T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX4174AOEUK+T?
MAX4174AOEUK+T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX4174AOEUK+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 MAX4174AOEUK+T?
For technical support, including MAX4174AOEUK+T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX4174AOEUK+T requirements.
6.How does Aetrix verify that MAX4174AOEUK+T is sourced from the original manufacturer or authorized distributors?
All MAX4174AOEUK+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 MAX4174AOEUK+T meets industry standards.
7.What is the process for return or replacement of MAX4174AOEUK+T?
All MAX4174AOEUK+T units undergo pre-shipment inspection (PSI). If there is an issue with MAX4174AOEUK+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 MAX4174AOEUK+T part is unused and in its original packaging.
Return procedure for MAX4174AOEUK+T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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