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Analog Devices Inc./Maxim Integrated MAX4174BEEUK-T
- Part No.:
- MAX4174BEEUK-T
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- SC-74A, SOT-753
- Datasheet:
-
MAX4174BEEUK-T.pdf
- Description:
- IC OPAMP GP 1 CIRCUIT SOT23-5
- Quantity:
- Payment:
- Shipping:
Inventory:4,008
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Product details
Overview
MAX4174BEEUK-T from Maxim Integrated is a single-channel, noninverting fixed-gain amplifier in SOT23-5 package with +5V/V gain, rail-to-rail output, 0.1% gain accuracy, ±17V input fault protection, and 300µA supply current. It operates from +2.5V to +5.5V single supply and targets low-side current-sense and photodiode preamplifier applications requiring precision DC gain and high-voltage robustness.
For engineers reviewing the MAX4174BEEUK-T datasheet, MAX4174BEEUK-T pinout, MAX4174BEEUK-T application, or MAX4174BEEUK-T equivalent, this page delivers verified technical context, exact pin functions, real-world use cases, and validated alternative options for portable instrumentation and single-supply sensor signal conditioning.
Technical Context
The MAX4174BEEUK-T integrates a rail-to-rail op amp core with laser-trimmed internal feedback resistors (RF/RG) to deliver factory-calibrated +5V/V noninverting gain. Its compensation is optimized specifically for this gain setting, achieving 330kHz −3dB bandwidth and 23MHz GBW product while maintaining stability with up to 470pF capacitive loads.
Input structure includes back-to-back SCR clamps and diode protection on both IN+ and IN− pins, enabling ±17V fault tolerance without phase reversal or excessive current draw. The inverting input connects directly to the internal RG resistor, limiting its common-mode range to VEE–0.15V to VCC–1.2V, while the noninverting input accepts signals across the full rail range when externally biased.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Gain | +5V/V noninverting, fixed and laser-trimmed for 0.1% accuracy - eliminates external resistor matching and layout sensitivity. |
| Supply Voltage | +2.5V to +5.5V single supply - supports battery-powered portable instruments and 3.3V/5V systems without level-shifting. |
| Supply Current | 300µA typical - enables always-on sensing in ultra-low-power applications like smart-card readers and keyless entry. |
| Input Fault Protection | ±17V on IN+ and IN− - prevents latch-up or damage during voltage transients in automotive or industrial sensor interfaces. |
| Output Swing | Rail-to-rail into 1kΩ load - delivers full dynamic range at output, critical for maximizing ADC resolution in current-sense amplifiers. |
| Bandwidth | 330kHz −3dB (AV = +5V/V), 23MHz GBW - provides sufficient speed for DC-coupled photodiode preamps and slow analog control loops. |
| Input Offset Drift | ±5µV/°C - ensures stable baseline over temperature in precision measurement circuits without recalibration. |
Pinout & Package
SOT23-5 package: compact 2.9mm × 1.6mm surface-mount footprint with gull-wing leads, rated for −40°C to +85°C operation.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (IN−) | Inverting input | Connects internally to RG resistor; voltage must stay within VEE–0.15V to VCC–1.2V to avoid distortion or clipping. |
| 2 (OUT) | Amplifier output | Rail-to-rail capable; drives 1kΩ load with <250mV headroom at rails; stable with ≤470pF capacitive load. |
| 3 (VCC) | Positive supply | +2.5V to +5.5V input; requires 0.1µF bypass capacitor to ground near pin for noise suppression. |
| 4 (VEE) | Negative supply / ground | Reference node for single-supply operation; tied to system ground in most designs. |
| 5 (IN+) | Noninverting input | Accepts full rail-to-rail input (VEE to VCC); for MAX4174 variants, externally biased - no internal VCC/2 divider. |
Key Features
| Feature | Design Value |
|---|---|
| Laser-trimmed RF/RG network | 0.1% gain accuracy at +5V/V eliminates calibration and reduces BOM count by removing two precision external resistors. |
| Rail-to-rail output stage | Delivers >4.8Vp-p swing from 5V supply into 1kΩ, preserving signal fidelity for downstream ADCs with minimal headroom loss. |
| ±17V input fault tolerance | SCR-based protection prevents latch-up and limits input current to <3.5mA during overvoltage events - no external TVS required. |
| Capacitive-load stability | Stable with up to 470pF directly at output - avoids need for isolation resistors in PCB traces or cable-driven sensor interfaces. |
| Low quiescent current | 300µA supply current enables continuous monitoring in energy-constrained devices such as infrared remote receivers and bar-code scanners. |
Applications
| Portable Instruments | Smart-Card Readers |
|---|---|
Use Scenario: Amplifying microvolt-level thermocouple or strain gauge signals in handheld multimeters and data loggers. IC Role / Device Role / Timing Role: Precision noninverting gain block providing fixed +5V/V amplification with minimal offset drift over temperature. Use Value: Eliminates manual gain calibration and external resistor networks, reducing assembly cost and improving long-term measurement repeatability. |
Use Scenario: Conditioning analog signals from contactless RFID coil antennas in ISO 14443-compliant smart-card terminals. IC Role / Device Role / Timing Role: Low-noise, rail-to-rail preamplifier for weak AC-coupled card detection pulses. Use Value: 300µA supply current extends battery life; ±17V fault protection guards against ESD discharge during card insertion. |
| Low-Side Current-Sense | Photodiode Preamps |
Use Scenario: Measuring load current via shunt resistor in battery management systems and motor drivers. IC Role / Device Role / Timing Role: Fixed-gain amplifier converting mV-level shunt voltage to 0–5V range for MCU ADC input. Use Value: 0.1% gain accuracy ensures ±0.1% current measurement error; rail-to-rail output maximizes ADC utilization. |
Use Scenario: Amplifying nanoamp-level photocurrent from silicon photodiodes in medical pulse oximeters and ambient light sensors. IC Role / Device Role / Timing Role: Transimpedance-capable noninverting gain stage with low input bias current (<10pA). Use Value: Input bias current drift <±10pA over temperature preserves linearity; 330kHz bandwidth supports fast optical pulse detection. |
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 | Same +5V/V gain, identical SOT23-5 package and pinout, but specified over −40°C to +85°C with tighter initial gain tolerance (0.05% typ vs. 0.1% typ). | Preferred for industrial-grade designs requiring extended temperature validation and higher initial accuracy. | Select MAX4174BEUK+T when traceable 0.05% gain spec and full temp-range qualification are mandatory. |
| AD8236ARMZ-R7 | Instrumentation amplifier with adjustable gain (via external resistor), 1.5V/V to 1000V/V, 125µA supply current, but no ±17V fault protection. | Better for differential sensing (e.g., bridge sensors); unsuitable where input overvoltage immunity is required. | Choose AD8236ARMZ-R7 only for true differential inputs and programmable gain; not a drop-in replacement for MAX4174BEEUK-T. |
Compared with MAX4174BEUK+T, the MAX4174BEEUK-T offers identical functionality at a standard accuracy grade, while the AD8236ARMZ-R7 provides flexibility at the cost of fault protection and fixed-gain simplicity - making the MAX4174BEEUK-T optimal for cost-sensitive, robust single-ended signal chains.
Availability
MAX4174BEEUK-T is available at Aetrix Electronics and suitable for portable instruments, smart-card readers, low-side current-sense circuits, and photodiode preamplifiers requiring stable component supply, consistent gain performance, and long-lifecycle availability.
Supply support for MAX4174BEEUK-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 high-performance analog and mixed-signal ICs for power, sensing, communication, and timing applications.
The MAX4174BEEUK-T belongs to the GainAmp™ family of fixed-gain amplifiers, engineered to replace discrete op-amp-plus-resistor configurations with integrated, laser-trimmed precision in ultra-small packages for space-constrained portable electronics.
FAQ
What is the exact gain configuration of the MAX4174BEEUK-T?
The MAX4174BEEUK-T is a noninverting fixed-gain amplifier with precisely trimmed +5V/V gain. This value is set by internal laser-trimmed RF/RG resistors and is guaranteed to ±0.1% at room temperature. The device does not support inverting or adjustable gain modes - its topology and pinout are dedicated solely to noninverting +5V/V operation.
Does the MAX4174BEEUK-T include internal VCC/2 biasing on the noninverting input?
No, the MAX4174BEEUK-T does not include internal VCC/2 biasing. That feature is exclusive to the MAX4175/MAX4275 variants. The MAX4174BEEUK-T requires external biasing of the IN+ pin for single-supply AC-coupled applications. Its IN+ terminal is a high-impedance node with no internal resistive divider.
Can the MAX4174BEEUK-T drive a 100pF capacitive load without oscillation?
Yes - the MAX4174BEEUK-T is fully stable with capacitive loads up to 470pF without requiring an isolation resistor. Its internal compensation is optimized for +5V/V gain, ensuring adequate phase margin even with 100pF loads. No external compensation components are needed for typical PCB trace or filter capacitor scenarios.
What is the maximum input voltage range for the IN− pin of the MAX4174BEEUK-T?
The IN− pin of the MAX4174BEEUK-T must remain between VEE – 0.15V and VCC – 1.2V under normal operation to avoid distortion. This limitation arises because IN− connects directly to the internal RG resistor and the op-amp's input stage. Exceeding this range may cause clipping or nonlinear behavior, though ±17V fault protection remains active beyond these bounds.
Is the MAX4174BEEUK-T pin-compatible with other SOT23-5 op amps?
The MAX4174BEEUK-T uses standard SOT23-5 pinout (IN−, OUT, VCC, VEE, IN+) and is functionally compatible with many rail-to-rail op amps in the same package. However, due to its integrated gain-setting resistors and fixed +5V/V topology, it is not a direct replacement for general-purpose op amps unless the circuit is designed for noninverting gain-only operation with no external feedback network.
MAX4174BEEUK-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
MAX4174BEEUK-T FAQ
1.How can I place an order for MAX4174BEEUK-T through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX4174BEEUK-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 MAX4174BEEUK-T reliable?
The price and inventory of MAX4174BEEUK-T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX4174BEEUK-T is usually 5 days.
3.What payment methods are accepted for MAX4174BEEUK-T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX4174BEEUK-T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX4174BEEUK-T?
MAX4174BEEUK-T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX4174BEEUK-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 MAX4174BEEUK-T?
For technical support, including MAX4174BEEUK-T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX4174BEEUK-T requirements.
6.How does Aetrix verify that MAX4174BEEUK-T is sourced from the original manufacturer or authorized distributors?
All MAX4174BEEUK-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 MAX4174BEEUK-T meets industry standards.
7.What is the process for return or replacement of MAX4174BEEUK-T?
All MAX4174BEEUK-T units undergo pre-shipment inspection (PSI). If there is an issue with MAX4174BEEUK-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 MAX4174BEEUK-T part is unused and in its original packaging.
Return procedure for MAX4174BEEUK-T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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