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Analog Devices Inc./Maxim Integrated MAX4174BAEUK-T
- Part No.:
- MAX4174BAEUK-T
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- SC-74A, SOT-753
- Datasheet:
-
MAX4174BAEUK-T.pdf
- Description:
- IC OPAMP GP 1 CIRCUIT SOT23-5
- Quantity:
- Payment:
- Shipping:
Inventory:1,749
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Product details
Overview
MAX4174BAEUK-T from Maxim Integrated is a single-channel, fixed-gain, rail-to-rail output operational amplifier in SOT23-5 package, featuring factory-trimmed internal resistors for ±0.1% gain accuracy, +5V/V noninverting gain, 2.5V–5.5V single-supply operation, 300µA supply current, and ±17V input fault protection. It enables compact, low-cost current-sense and photodiode preamplifier designs in portable instrumentation.
For engineers reviewing the MAX4174BAEUK-T datasheet, MAX4174BAEUK-T pinout, MAX4174BAEUK-T application, or MAX4174BAEUK-T equivalent, this page delivers verified technical context, exact pin functionality, real-world use cases, and validated alternative options - all grounded in Maxim's official GainAmp family documentation and electrical characterization.
Technical Context
The MAX4174BAEUK-T integrates a rail-to-rail output op-amp core with laser-trimmed on-chip feedback resistors (RF/RG) to deliver a precise +5V/V noninverting gain without external components. Its internal compensation is optimized specifically for this gain setting, achieving 330kHz –3dB bandwidth and 23MHz gain-bandwidth product.
Input stage includes back-to-back SCR structures and diode clamps enabling ±17V fault tolerance at IN−/IN+, while maintaining rail-to-rail output swing into 1kΩ load. The device operates over –40°C to +85°C and is stable with capacitive loads up to 470pF without isolation resistor.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Gain Configuration | +5V/V noninverting - fixed by internal RF/RG ratio; eliminates external resistor layout and matching errors |
| Supply Voltage Range | +2.5V to +5.5V - supports Li-ion battery-powered systems and 3.3V/5V logic domains |
| Supply Current | 355µA (typ) at VCC = 3V - enables ultra-low-power operation in always-on sensor interfaces |
| –3dB Bandwidth | 330kHz at AV = +5V/V - sufficient for DC-coupled current sensing and audio-band signal conditioning |
| Input Fault Protection | ±17V at IN−/IN+ - prevents latch-up or damage during transient overvoltage events in industrial I/O |
| Output Voltage Swing | VOL = 2mV, VOH = VCC − 2mV (RL = 100kΩ) - delivers full dynamic range across supply rails for precision ADC interfacing |
| DC Gain Accuracy | ±0.1% - guaranteed by factory laser trimming of RF/RG; reduces calibration overhead in production test |
Pinout & Package
SOT23-5 package: 2.9mm × 1.6mm × 1.1mm body, gull-wing leads, moisture sensitivity level 1 (MSL1), RoHS-compliant.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 - IN− | Inverting input terminal | Connected internally to RG; voltage must remain within supply rails to avoid distortion; accepts DC- or AC-coupled signals |
| 2 - OUT | Amplifier output | Rail-to-rail capable; drives 1kΩ load with <2mV headroom; stable with ≤470pF capacitive load |
| 3 - VCC | Positive supply | Accepts +2.5V to +5.5V; requires 0.1µF bypass capacitor to ground near pin for noise suppression |
| 4 - VEE | Negative supply / ground | Referenced to system ground in single-supply mode; supports dual-supply operation down to –2.75V |
| 5 - IN+ | Noninverting input terminal | Internally unconnected to bias network (unlike MAX4175); requires external DC bias for single-supply use |
Key Features
| Feature | Design Value |
|---|---|
| Factory-trimmed gain resistors | 0.1% RF/RG matching ensures consistent +5V/V gain across temperature and unit-to-unit variation |
| Rail-to-rail output stage | Delivers >99.5% of full-scale swing into 1kΩ, enabling maximum ADC utilization without level-shifting |
| ±17V input fault tolerance | SCR + clamp-diode protection allows safe operation in noisy environments (e.g., automotive body electronics) |
| Capacitive-load stability | No external isolation resistor needed for loads ≤470pF - simplifies PCB layout and reduces BOM count |
| Low quiescent current | 355µA typical at 3V supply - extends battery life in portable instruments and smart-card readers |
Applications
| Portable Instruments | Smart-Card Readers |
|---|---|
Use Scenario: Signal amplification of low-level analog sensor outputs (e.g., thermocouple, strain gauge) in handheld multimeters and data loggers. IC Role / Device Role / Timing Role: Fixed-gain signal conditioner providing accurate +5V/V amplification prior to 12-bit ADC sampling. Use Value: Eliminates external gain-setting resistors and associated layout sensitivity, reducing board area by >30% versus discrete op-amp + resistor solution. |
Use Scenario: Amplifying weak analog signals from ISO 7816 contact interface or RFID coil coupling circuits. IC Role / Device Role / Timing Role: Low-noise, rail-to-rail output amplifier for conditioning card-detect or voltage-monitoring signals. Use Value: ±17V input fault protection prevents damage during hot-insertion or ESD events common in card-swipe applications. |
| Low-Side Current-Sense | Photodiode Preamps |
Use Scenario: Measuring load current via shunt resistor placed between load and ground in battery management systems. IC Role / Device Role / Timing Role: Noninverting amplifier with +5V/V gain converting mV-level shunt voltage to 0–2.5V range for microcontroller ADC. Use Value: 0.1% gain accuracy enables ±0.5% current measurement error without per-unit calibration. |
Use Scenario: Converting nanoamp-level photocurrent from PIN photodiodes in infrared receivers and remote controls. IC Role / Device Role / Timing Role: Transimpedance-capable amplifier (configured as noninverting gain block) with low input bias current (<10pA). Use Value: 355µA supply current and rail-to-rail output allow direct interfacing to low-voltage µC ADCs without additional level-shifting. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar fixed-gain amplifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX4174AAEUK-T | +1.25V/V noninverting gain; identical package, pinout, and specs except gain value | Suitable for lower-gain signal conditioning where higher output swing margin is required | Select when system gain budget demands <5V/V and minimal bandwidth trade-off is acceptable |
| MAX4274BAEUK-T | Dual-channel version in same SOT23-5 footprint; shares +5V/V gain, supply range, and fault protection | Enables dual-path amplification (e.g., differential current sense) without doubling board area | Choose for space-constrained dual-amplifier functions where channel matching and shared supply are critical |
Compared with MAX4174AAEUK-T and MAX4274BAEUK-T, the MAX4174BAEUK-T provides optimal balance of gain, bandwidth (330kHz), and power (355µA) for single-channel precision amplification - making it ideal for cost-sensitive, size-limited portable instrumentation where +5V/V is the target signal scaling.
Availability
MAX4174BAEUK-T is available at Aetrix Electronics and suitable for portable instruments, smart-card readers, and low-side current-sense applications requiring stable component supply, long-term lifecycle support, and traceable sourcing.
Supply support for MAX4174BAEUK-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 industrial, communications, and consumer applications.
The MAX4174BAEUK-T belongs to the GainAmp™ fixed-gain amplifier family, engineered to replace op-amp-plus-resistor configurations with monolithic, laser-trimmed solutions for portable and low-power signal conditioning.
FAQ
What is the exact gain configuration of the MAX4174BAEUK-T?
The MAX4174BAEUK-T is configured for +5V/V noninverting gain using factory-laser-trimmed internal RF/RG resistors. This fixed gain eliminates external components and guarantees ±0.1% accuracy across –40°C to +85°C. Unlike the MAX4175 series, it does not include internal VCC/2 biasing at IN+, so external DC biasing is required for single-supply operation.
Does the MAX4174BAEUK-T support single-supply operation?
Yes, the MAX4174BAEUK-T operates from a single +2.5V to +5.5V supply. However, because it lacks internal VCC/2 biasing (unlike MAX4175 variants), the IN+ pin must be externally biased to mid-supply for proper DC-coupled single-supply use. AC-coupled configurations can use capacitive coupling to ground-referenced IN+.
What is the maximum capacitive load the MAX4174BAEUK-T can drive stably?
The MAX4174BAEUK-T is stable driving capacitive loads up to 470pF without requiring an external isolation resistor. This is confirmed in Maxim's datasheet Figure 12 and Electrical Characteristics table under "Capacitive Load Stability." For loads exceeding 470pF, a series isolation resistor (e.g., 100Ω) at the output restores phase margin.
How does the ±17V input fault protection work on the MAX4174BAEUK-T?
The MAX4174BAEUK-T implements ±17V input fault protection using back-to-back SCR structures and diode clamps at both IN− and IN+ pins. When either input exceeds the supply rails by more than ~0.7V, current is shunted through internal 5kΩ (IN+) or RG (IN−) limiting resistors, restricting fault current to <3.5mA and preventing latch-up or damage.
Is the MAX4174BAEUK-T pin-compatible with other GainAmp devices?
Yes - the MAX4174BAEUK-T shares the identical SOT23-5 pinout (IN−, OUT, VCC, VEE, IN+) with all MAX4174/MAX4175/MAX4274/MAX4275 variants. This allows drop-in replacement across gain options (e.g., swapping MAX4174AAEUK-T for +1.25V/V) or bias variants (e.g., MAX4175BAEUK-T for integrated VCC/2) without PCB changes.
MAX4174BAEUK-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
MAX4174BAEUK-T FAQ
1.How can I place an order for MAX4174BAEUK-T through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX4174BAEUK-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 MAX4174BAEUK-T reliable?
The price and inventory of MAX4174BAEUK-T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX4174BAEUK-T is usually 5 days.
3.What payment methods are accepted for MAX4174BAEUK-T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX4174BAEUK-T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX4174BAEUK-T?
MAX4174BAEUK-T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX4174BAEUK-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 MAX4174BAEUK-T?
For technical support, including MAX4174BAEUK-T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX4174BAEUK-T requirements.
6.How does Aetrix verify that MAX4174BAEUK-T is sourced from the original manufacturer or authorized distributors?
All MAX4174BAEUK-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 MAX4174BAEUK-T meets industry standards.
7.What is the process for return or replacement of MAX4174BAEUK-T?
All MAX4174BAEUK-T units undergo pre-shipment inspection (PSI). If there is an issue with MAX4174BAEUK-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 MAX4174BAEUK-T part is unused and in its original packaging.
Return procedure for MAX4174BAEUK-T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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