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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:2,579
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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 accuracy of ±0.1%, rail-to-rail output swing into 1kΩ, and operation from +2.5V to +5.5V supply. It consumes only 300µA quiescent current and features ±17V input fault protection-ideal for low-side current-sense amplification in portable instrumentation and smart-card readers.
For engineers reviewing the MAX4174AOEUK-T datasheet, MAX4174AOEUK-T pinout, MAX4174AOEUK-T application, or MAX4174AOEUK-T equivalent, key selection criteria include guaranteed DC gain accuracy, capacitive-load stability up to 470pF, GBW-optimized compensation for +5V/V gain, input voltage range compliance (VEE to VCC), and SOT23-5 footprint compatibility in 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) to fix noninverting gain at +5V/V. Its internal decompensation 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 without phase reversal or excessive current draw (<3.5mA). The inverting input connects directly to RG, limiting its common-mode range to VEE ≤ VIN− ≤ VCC, while the noninverting input accepts VEE to VCC − 1.2V.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Fixed Gain | +5V/V noninverting, factory-trimmed RF/RG ratio with ±0.1% accuracy-eliminates external resistor matching and layout sensitivity. |
| Supply Voltage Range | +2.5V to +5.5V single supply-supports Li-ion battery-powered systems and 3.3V/5V logic domains without level-shifting. |
| Supply Current | 300µA typical per amplifier-enables always-on sensing in ultra-low-power portable instruments. |
| −3dB Bandwidth | 330kHz at AV = +5V/V-sufficient for DC-coupled current monitoring and medium-speed sensor signal conditioning. |
| Capacitive Load Stability | Stable with up to 470pF without isolation resistor-simplifies PCB routing to remote ADC inputs or long traces. |
| Input Fault Protection | ±17V tolerance on both inputs-prevents latch-up or damage during hot-plug, ESD transients, or sensor overvoltage events. |
| Output Voltage Swing | Rail-to-rail into 1kΩ load (VOH ≥ VCC − 25mV, VOL ≤ VEE + 25mV)-maximizes dynamic range for 12-bit+ ADC interfacing. |
Pinout & Package
Package: SOT23-5, surface-mount, 5-pin plastic package with 0.95mm pitch and 2.9mm × 1.6mm footprint-compatible with standard pick-and-place and reflow processes.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (IN−) | Inverting input node | Internally connected 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 <25mV headroom; stable with ≤470pF capacitive load. |
| 3 (VCC) | Positive supply | +2.5V to +5.5V input; requires 0.1µF ceramic bypass capacitor placed adjacent to pin. |
| 4 (VEE) | Negative supply / ground | Connected to system ground in single-supply operation; forms return path for bias and output current. |
| 5 (IN+) | Noninverting input | Accepts input signals from VEE to VCC − 1.2V; used as signal input in noninverting +5V/V configuration. |
Key Features
| Feature | Design Value |
|---|---|
| Laser-trimmed internal gain resistors | 0.1% gain accuracy eliminates external resistor selection, placement, and thermal drift errors in production. |
| Optimized decompensation for +5V/V | 330kHz bandwidth and 23MHz GBW enable faster settling than unity-gain-stable op-amps at same gain. |
| Rail-to-rail output stage | Delivers full-scale swing into 1kΩ-preserves SNR when driving SAR or sigma-delta ADC reference buffers. |
| ±17V input fault protection | SCR/diode clamp structure limits input current to <3.5mA during overvoltage-reduces need for external TVS or series resistors. |
| Low 300µA supply current | Enables continuous current monitoring in battery-operated devices with multi-year runtime expectations. |
Applications
| Portable Instrumentation | Smart-Card Readers |
|---|---|
|
Use Scenario: Amplifying microvolt-level thermocouple or bridge-sensor outputs in handheld multimeters and data loggers. IC Role / Device Role / Timing Role: Noninverting +5V/V gain block converting low-amplitude analog signals to full-scale ADC input range. Use Value: Internal resistor matching ensures consistent gain across temperature and unit-to-unit variation-critical for calibrated measurement accuracy. |
Use Scenario: Conditioning contactless card reader antenna signals before envelope detection and demodulation. IC Role / Device Role / Timing Role: Fixed-gain front-end amplifier boosting weak RF envelope signals while rejecting power-supply noise. Use Value: Rail-to-rail output and 330kHz bandwidth preserve pulse fidelity of 106kHz–848kHz ISO14443 carrier harmonics. |
| Low-Side Current-Sense | Photodiode Preamps |
|
Use Scenario: Measuring load current via shunt resistor in battery management ICs and USB-C PD controllers. IC Role / Device Role / Timing Role: High-accuracy noninverting amplifier referenced to ground, rejecting common-mode voltage from shunt. Use Value: ±17V input fault rating withstands load dump or reverse-polarity events-protecting sense circuitry without added components. |
Use Scenario: Converting photodiode current to voltage in IR remote receivers and optical smoke detectors. IC Role / Device Role / Timing Role: Transimpedance amplifier configured with external feedback resistor and +5V/V gain for signal scaling. Use Value: 300µA supply current and 60nV/√Hz input noise support high-sensitivity detection under low-light conditions. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar fixed-gain amplifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX4174BOEUK-T | +3V/V noninverting gain; identical SOT23-5 package, pinout, and electrical specs except gain value. | Suitable where lower gain reduces output swing headroom requirements or improves noise performance at same input signal level. | Select when design requires +3V/V instead of +5V/V-no layout or BOM change needed beyond part number substitution. |
| MAX4274AOEUK-T | Dual-channel version with same +5V/V gain, 300µA/channel, and SOT23-8 package-shares identical gain accuracy and bandwidth specs. | Preferred for space-constrained dual-signal paths (e.g., differential current sensing or stereo sensor interfaces). | Choose for dual-channel needs; requires SOT23-8 footprint and separate VCC/VEE routing per channel. |
Compared with MAX4174BOEUK-T and MAX4274AOEUK-T, the MAX4174AOEUK-T provides optimal trade-off between gain, bandwidth, and single-channel integration for compact, low-power current-sense and sensor interface designs-without requiring external gain-setting components or layout redesign.
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, guaranteed gain accuracy, and long-term industrial lifecycle support.
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 demanding industrial, medical, and communications applications-with emphasis on integration, reliability, and power efficiency.
The MAX4174AOEUK-T belongs to the GainAmp™ family of fixed-gain amplifiers, engineered to replace discrete op-amp-plus-resistor circuits with factory-trimmed internal resistors-targeting space-constrained, low-power, high-accuracy signal conditioning in portable and embedded systems.
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 is confirmed in the Gain Selection Guide and Electrical Characteristics table, where "Gain = +5V/V" is explicitly specified for the 'A' grade variant. The device does not support inverting or adjustable gain configurations.
Does the MAX4174AOEUK-T require external gain-setting resistors?
No, the MAX4174AOEUK-T integrates laser-trimmed internal RF and RG resistors to achieve its +5V/V noninverting gain. No external resistors are needed-this eliminates layout sensitivity, thermal drift, and component count associated with discrete gain networks. The IN− pin is internally connected to RG and is not intended for external access.
Can the MAX4174AOEUK-T drive a 100pF capacitive load without oscillation?
Yes-the MAX4174AOEUK-T is stable with capacitive loads up to 470pF without requiring an isolation resistor. This is verified in the Electrical Characteristics table under "Capacitive Load Stability" and confirmed in Typical Operating Characteristics (Figure 11 and Figure 12), which show clean small-signal pulse response at CL = 250pF and CL = 470pF.
What is the input voltage range specification for the MAX4174AOEUK-T?
The MAX4174AOEUK-T specifies IN+ input voltage range as VEE to VCC − 1.2V and IN− range as VEE to VCC. These limits are guaranteed by functional test and reflect the internal connection of IN− to the RG series resistor. Exceeding these ranges may cause distortion or clipping, as detailed in the Applications Information section.
Is the MAX4174AOEUK-T pin-compatible with other GainAmp devices in SOT23-5?
Yes-the MAX4174AOEUK-T shares identical SOT23-5 pinout (IN−, OUT, VCC, VEE, IN+) with all MAX4174/MAX4175 variants. Pin compatibility is confirmed in the Pin Configurations diagram and Pin Description table. However, MAX4175 variants include internal VCC/2 biasing on IN+, so direct substitution requires verifying biasing requirements.
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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