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Analog Devices Inc./Maxim Integrated MAX4174BNEUK-T
- Part No.:
- MAX4174BNEUK-T
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- SC-74A, SOT-753
- Datasheet:
-
MAX4174BNEUK-T.pdf
- Description:
- IC OPAMP GP 1 CIRCUIT SOT23-5
- Quantity:
- Payment:
- Shipping:
Inventory:3,944
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Product details
Overview
MAX4174BNEUK-T from Maxim Integrated is a single-channel, noninverting fixed-gain amplifier in SOT23-5 package, delivering +5V/V gain with 0.1% accuracy, rail-to-rail output swing, ±17V input fault protection, and 300µA supply current. It operates from +2.5V to +5.5V and targets low-side current-sense and photodiode preamplifier circuits requiring precision gain without external resistors.
For engineers reviewing the MAX4174BNEUK-T datasheet, MAX4174BNEUK-T pinout, MAX4174BNEUK-T application, or MAX4174BNEUK-T equivalent, this device offers verified DC accuracy, GBW-optimized compensation for +5V/V gain (23MHz product), stable operation with up to 470pF capacitive load, and direct replacement capability for discrete op-amp + resistor gain blocks in space-constrained portable instrumentation.
Technical Context
The MAX4174BNEUK-T integrates factory-laser-trimmed internal RF/RG resistors to fix noninverting gain at +5V/V, eliminating layout sensitivity and resistor tolerance errors. Its core op-amp is decompensated specifically for this gain setting to achieve 23MHz GBW while maintaining stability.
Input structure includes back-to-back SCR clamps and series diodes enabling ±17V fault tolerance without phase reversal or excessive current draw (<3.5mA). The inverting input connects directly to RG, limiting its voltage range to within supply rails, while the noninverting input accepts standard common-mode signals.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Gain | +5V/V noninverting, fixed by internal laser-trimmed resistors - eliminates external gain-setting components and ensures 0.1% accuracy. |
| Supply Voltage | +2.5V to +5.5V single supply - supports battery-powered and low-voltage industrial systems without level-shifting. |
| Supply Current | 300µA typical - enables always-on sensing in portable instruments with minimal battery drain. |
| Input Fault Protection | ±17V on IN+ or IN− - prevents latch-up or damage during transient overvoltage events in automotive or industrial interfaces. |
| Capacitive Load Stability | Stable with up to 470pF - drives ADC input filters or long PCB traces without isolation resistor or compensation network. |
| Output Swing | Rail-to-rail into 1kΩ - delivers full dynamic range across VEE to VCC, maximizing SNR in single-supply signal chains. |
| GBW Product | 23MHz - provides usable bandwidth for 100kHz–500kHz sensor signal conditioning without sacrificing DC accuracy. |
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 | Connects internally to RG; must remain within VEE to VCC to avoid distortion - no external connection required in noninverting configuration. |
| 2 (OUT) | Amplifier output | Rail-to-rail capable; drives 1kΩ load with <250mV headroom at both rails - suitable for direct ADC interface or analog switch control. |
| 3 (VCC) | Positive supply | +2.5V to +5.5V input; requires 0.1µF bypass capacitor to ground - critical for noise immunity and high-frequency stability. |
| 4 (VEE) | Negative supply / ground | Reference node for single-supply operation; ties to system ground - establishes common-mode baseline for input and output stages. |
| 5 (IN+) | Noninverting input | Signal input node; accepts DC- or AC-coupled sources; voltage range extends from VEE to VCC − 1.2V - defines usable input span in precision sensing. |
Key Features
| Feature | Design Value |
|---|---|
| Internal precision gain-setting resistors | Laser-trimmed RF/RG network achieves 0.1% gain accuracy - removes resistor matching error and board area for external feedback network. |
| Rail-to-rail output stage | Swings within 250mV of VEE and VCC into 1kΩ - preserves >95% of full-scale ADC range in 3.3V or 5V systems. |
| ±17V input fault protection | SCR-based clamping limits input current to <3.5mA during overvoltage - protects both amplifier and upstream signal source without external TVS. |
| Capacitive-load stability | No oscillation with ≤470pF load - eliminates need for output isolation resistor in filter-driven applications like anti-aliasing or EMI suppression. |
| Low quiescent current | 300µA supply current at +5V - enables continuous monitoring in energy-sensitive smart-card readers and remote sensors. |
Applications
| Portable Instruments | Smart-Card Readers |
|---|---|
Use Scenario: Battery-powered handheld multimeters measuring mV-level sensor outputs with minimal power budget. IC Role / Device Role / Timing Role: Noninverting +5V/V gain block amplifying thermocouple or strain gauge signals before 12-bit ADC sampling. Use Value: Eliminates external gain resistors and trim pots, reducing BOM count and calibration drift while maintaining 0.1% gain accuracy over temperature. |
Use Scenario: Contactless EMV-compliant card readers detecting weak RF field modulation from ISO 14443-A/B tags. IC Role / Device Role / Timing Role: Photodiode preamplifier converting microamp-level photocurrent into clean 0–3.3V analog voltage for envelope detection. Use Value: Rail-to-rail output and 23MHz GBW support fast pulse response for 106kbps data rates; ±17V fault tolerance handles ESD events during card insertion. |
| Low-Side Current-Sense | Photodiode Preamps |
Use Scenario: Real-time motor phase current monitoring in BLDC inverters using shunt resistors below the low-side MOSFET. IC Role / Device Role / Timing Role: Fixed +5V/V amplifier referenced to ground, rejecting common-mode noise from switching nodes. Use Value: Input voltage range extending to VEE allows direct connection to shunt; 300µA current enables always-on diagnostics without compromising efficiency. |
Use Scenario: Optical smoke detectors converting scattered IR light intensity into proportional analog voltage for comparator thresholding. IC Role / Device Role / Timing Role: Transimpedance-stage amplifier with fixed gain, driving low-pass filter before window comparator. Use Value: 470pF capacitive-load stability permits integration of large-area photodiode capacitance without added compensation components. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar fixed-gain amplifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX4174AEUK-T | +1.25V/V noninverting gain; same SOT23-5 package, 0.1% gain accuracy, and ±17V fault protection. | Lower gain suits higher dynamic range inputs where +5V/V would saturate; reduced GBW (17MHz) trades bandwidth for improved low-frequency SNR. | Select when input signal amplitude exceeds 1V and full-scale utilization of 3.3V ADC is required without clipping. |
| MAX4274BEUK-T | Dual-channel version; identical +5V/V per channel, same specs, but occupies larger footprint and draws 600µA total. | Enables dual-path signal conditioning (e.g., differential current sense) on one IC; not suitable for space-constrained single-channel designs. | Choose only when two synchronized +5V/V gain paths are needed and PCB area allows dual SOT23-8 or SO-8 packaging. |
Compared with MAX4174AEUK-T and MAX4274BEUK-T, the MAX4174BNEUK-T uniquely balances mid-range gain (+5V/V), compact single-channel SOT23-5 packaging, and optimal 23MHz GBW for time-critical sensor interfaces-making it the preferred choice for cost- and size-sensitive portable instrumentation.
Availability
MAX4174BNEUK-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, guaranteed 0.1% gain accuracy, and long-term production continuity.
Supply support for MAX4174BNEUK-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 demanding industrial, medical, and communications applications.
The MAX4174BNEUK-T belongs to the GainAmp™ family of fixed-gain amplifiers, engineered to replace op-amp + external resistor configurations with monolithic, laser-trimmed accuracy and fault-hardened performance in portable and safety-critical systems.
FAQ
What is the exact gain value and configuration of the MAX4174BNEUK-T?
The MAX4174BNEUK-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 confirmed in the Electrical Characteristics table under "DC Gain Accuracy" with ±0.1% tolerance. The device does not support inverting or adjustable gain modes - its topology is strictly noninverting with IN+ as signal input and IN− tied internally to RG.
Does the MAX4174BNEUK-T include internal VCC/2 biasing at the noninverting input?
No, the MAX4174BNEUK-T does not include internal VCC/2 biasing. That feature is exclusive to the MAX4175/MAX4275 variants. The MAX4174BNEUK-T uses a standard noninverting configuration where IN+ is the external signal input node, and no internal bias resistors are present - requiring external DC biasing for AC-coupled single-supply applications.
Can the MAX4174BNEUK-T drive a 10nF capacitive load?
No - the MAX4174BNEUK-T is specified stable only up to 470pF without external compensation. Driving 10nF (10,000pF) will cause severe peaking or oscillation. To interface with such loads, an isolation resistor (typically 100Ω–500Ω) must be placed in series with the output, as documented in Figure 9 of the datasheet.
What is the maximum input voltage range for the IN− pin of the MAX4174BNEUK-T?
The IN− pin of the MAX4174BNEUK-T must remain within the supply rails (VEE to VCC) to avoid distortion. Unlike IN+, it has no extended common-mode range - exceeding VEE or VCC at IN− risks clipping and nonlinear behavior due to internal diode clamping, as explicitly stated in the Applications Information section.
Is the MAX4174BNEUK-T pin-compatible with other GainAmp devices in SOT23-5?
Yes - all MAX4174/MAX4175/MAX4274/MAX4275 SOT23-5 variants share identical pinout: Pin 1 = IN−, Pin 2 = OUT, Pin 3 = VCC, Pin 4 = VEE, Pin 5 = IN+. This allows direct substitution between gain variants (e.g., replacing MAX4174AEUK-T with MAX4174BNEUK-T) without PCB changes, provided the application tolerates +5V/V instead of +1.25V/V gain.
MAX4174BNEUK-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
MAX4174BNEUK-T FAQ
1.How can I place an order for MAX4174BNEUK-T through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX4174BNEUK-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 MAX4174BNEUK-T reliable?
The price and inventory of MAX4174BNEUK-T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX4174BNEUK-T is usually 5 days.
3.What payment methods are accepted for MAX4174BNEUK-T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX4174BNEUK-T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX4174BNEUK-T?
MAX4174BNEUK-T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX4174BNEUK-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 MAX4174BNEUK-T?
For technical support, including MAX4174BNEUK-T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX4174BNEUK-T requirements.
6.How does Aetrix verify that MAX4174BNEUK-T is sourced from the original manufacturer or authorized distributors?
All MAX4174BNEUK-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 MAX4174BNEUK-T meets industry standards.
7.What is the process for return or replacement of MAX4174BNEUK-T?
All MAX4174BNEUK-T units undergo pre-shipment inspection (PSI). If there is an issue with MAX4174BNEUK-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 MAX4174BNEUK-T part is unused and in its original packaging.
Return procedure for MAX4174BNEUK-T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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