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Analog Devices Inc./Maxim Integrated MAX4175AGEUK+T
- Part No.:
- MAX4175AGEUK+T
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- SC-74A, SOT-753
- Datasheet:
-
MAX4175AGEUK+T.pdf
- Description:
- IC OPAMP GP 1 CIRCUIT SOT23-5
- Quantity:
- Payment:
- Shipping:
Inventory:3,781
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Product details
Overview
MAX4175AGEUK+T from Maxim Integrated is a single-channel, noninverting fixed-gain amplifier with internal VCC/2 biasing, housed in a 5-pin SOT23 package. It delivers +5V/V gain with 0.1% accuracy, operates from +2.5V to +5.5V supply, consumes only 300µA, and features rail-to-rail output swing driving 1kΩ loads - ideal for low-power single-supply signal conditioning in portable instrumentation and smart-card readers.
For engineers reviewing the MAX4175AGEUK+T datasheet, MAX4175AGEUK+T pinout, MAX4175AGEUK+T application, or MAX4175AGEUK+T equivalent, this page provides verified technical context, pin-level design meaning, real-world use scenarios, and validated alternative options for precision gain-block replacement in space-constrained, battery-powered systems.
Technical Context
The MAX4175AGEUK+T integrates a rail-to-rail output op-amp core with laser-trimmed on-chip feedback resistors (RF/RG) and dual 150kΩ internal bias resistors forming a VCC/2 divider at the IN+ terminal. Its compensation is optimized specifically for +5V/V closed-loop gain, achieving 330kHz −3dB bandwidth and 23MHz GBW product.
Input fault protection withstands ±17V at either IN+ or IN− without phase reversal or excessive current draw (<3.5mA), enabled by back-to-back SCR structures and diode clamps with series limiting resistors. The device remains stable driving capacitive loads up to 470pF without external isolation.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Gain | +5V/V noninverting, factory-set via laser-trimmed RF/RG for 0.1% accuracy - eliminates external resistor layout and matching tolerance errors. |
| Supply Voltage Range | +2.5V to +5.5V single supply - supports Li-ion, coin-cell, and regulated 3.3V/5V rails without level-shifting. |
| Supply Current | 300µA typical - enables always-on sensing in ultra-low-power portable devices with multi-year battery life. |
| −3dB Bandwidth | 330kHz at AV = +5V/V - sufficient for DC-coupled sensor signals, audio preamps, and barcode reader analog front-ends. |
| Input Fault Tolerance | ±17V on IN+ or IN− - protects against ESD, hot-plug transients, and miswiring in industrial and automotive interface applications. |
| Capacitive Load Stability | Stable up to 470pF - drives ADC input filters, long traces, or coaxial cables without oscillation or added series resistance. |
| Output Voltage Swing | Rail-to-rail into 1kΩ load (e.g., 0.05V to 4.95V at VCC = 5V) - maximizes dynamic range for 10-bit+ ADC interfacing. |
Pinout & Package
Package: 5-pin SOT23 (1.6mm × 2.9mm × 1.1mm), surface-mount, RoHS-compliant.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (IN−) | Inverting input | Connects internally to RG; voltage must remain within VEE to VCC to avoid distortion - not fault-protected beyond ±17V relative to VEE. |
| 2 (OUT) | Amplifier output | Rail-to-rail capable; drives 1kΩ load with <250mV headroom; stable with ≤470pF capacitive load directly. |
| 3 (VEE) | Negative supply / ground | Reference node for single-supply operation (typically 0V); all internal bias and protection circuits referenced to this pin. |
| 4 (VCC) | Positive supply | +2.5V to +5.5V input; powers op-amp core, bias network, and protection circuitry; requires 0.1µF bypass to VEE. |
| 5 (IN+) | Noninverting input with VCC/2 bias | Internally biased to VCC/2 via two 150kΩ resistors - eliminates external bias components for AC-coupled inputs in single-supply systems. |
Key Features
| Feature | Design Value |
|---|---|
| VCC/2 internal bias network | Two matched 150kΩ resistors provide precise mid-supply reference at IN+, enabling full-rail signal swing without external components in AC-coupled configurations. |
| Laser-trimmed gain resistors | RF/RG ratio trimmed to 0.1% accuracy - ensures consistent gain across temperature and unit-to-unit, eliminating calibration in production test. |
| ±17V input fault protection | Back-to-back SCR + clamp diodes limit input current to <3.5mA during overvoltage - prevents latch-up and damage in noisy or uncontrolled environments. |
| Rail-to-rail output stage | Delivers >99% of VCC–VEE swing into 1kΩ - preserves SNR when driving SAR or sigma-delta ADCs with limited input range. |
| 470pF capacitive load stability | No external isolation resistor required - simplifies layout, reduces BOM count, and avoids signal attenuation in filter-coupled applications. |
Applications
| Portable Instrumentation | Smart-Card Readers |
|---|---|
Use Scenario: Amplifying low-level thermocouple or bridge-sensor outputs in handheld multimeters and data loggers. IC Role / Device Role / Timing Role: Precision noninverting gain block with integrated VCC/2 bias for single-supply DC-coupled signal conditioning. Use Value: Eliminates external bias resistors and matching networks, reducing PCB area by >30% and improving thermal drift performance vs. discrete solutions. |
Use Scenario: Boosting weak analog signals from contactless RFID coil antennas before ADC sampling. IC Role / Device Role / Timing Role: Low-noise, fast-settling (+5V/V) amplifier with 330kHz bandwidth for 13.56MHz carrier envelope detection. Use Value: 90nV/√Hz input noise and 7µs 0.01% settling enable reliable card presence detection under variable coupling conditions. |
| Infrared Remote Receivers | Low-Side Current-Sense Amplifiers |
Use Scenario: Amplifying modulated IR photodiode currents in TV remotes and home automation receivers. IC Role / Device Role / Timing Role: AC-coupled noninverting amplifier with internal VCC/2 bias, configured for +5V/V gain and rail-to-rail output swing. Use Value: Internal bias removes need for external DC restoration circuitry, cutting component count and enabling sub-1mm board height. |
Use Scenario: Measuring shunt voltage in battery-powered IoT nodes where supply headroom is constrained. IC Role / Device Role / Timing Role: Fixed-gain amplifier converting mV-level shunt drops to 0–5V full-scale for microcontroller ADC input. Use Value: 0.1% gain accuracy and ±17V input tolerance allow direct connection to motor driver outputs without additional protection. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar fixed-gain amplifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX4174AGEUK+T | Same SOT23-5 package and pinout, but lacks internal VCC/2 bias at IN+ - requires external bias network for single-supply AC-coupled use. | Suitable for DC-coupled designs or where external bias control is preferred; not drop-in for MAX4175 layouts relying on internal bias. | Select when precise external bias voltage or adjustable common-mode level is required; verify IN+ drive capability matches source impedance. |
| AD8273ARZ-5 | Single-channel, +5V/V fixed-gain amplifier in SOIC-8; includes internal VCC/2 bias but consumes 1.2mA (4× higher than MAX4175AGEUK+T). | Better suited for industrial systems with ample power budget and PCB space; SOIC-8 footprint incompatible with SOT23-5 layout. | Choose for higher drive strength (20mA output) or extended temperature range (−40°C to +125°C); not suitable for space- or power-constrained designs. |
Compared with MAX4174AGEUK+T and AD8273ARZ-5, the MAX4175AGEUK+T uniquely balances ultra-low quiescent current (300µA), SOT23-5 footprint, and integrated VCC/2 bias - making it optimal for miniaturized, battery-operated signal chains where board area and energy efficiency are critical.
Availability
MAX4175AGEUK+T is available at Aetrix Electronics and suitable for portable instrumentation, smart-card readers, infrared remote receivers, and low-side current-sense amplifiers requiring stable component supply across high-mix, low-volume production runs.
Supply support for MAX4175AGEUK+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, mixed-signal, and power-management ICs for demanding industrial, medical, and communications applications.
The MAX4175AGEUK+T belongs to the GainAmp™ family of fixed-gain amplifiers, engineered to replace op-amp-plus-resistor configurations with monolithic, laser-trimmed accuracy - targeting space-constrained, low-power signal-conditioning in portable and embedded systems.
FAQ
What is the exact gain configuration of the MAX4175AGEUK+T?
The MAX4175AGEUK+T is a noninverting fixed-gain amplifier with a precisely trimmed +5V/V gain. This value is set by internal laser-trimmed RF/RG resistors and is guaranteed to ±0.1% accuracy across temperature and process variation. The device does not support gain adjustment or reconfiguration - it is optimized solely for +5V/V operation in single-supply systems with internal VCC/2 biasing at the IN+ pin.
Does the MAX4175AGEUK+T require external biasing components?
No - the MAX4175AGEUK+T integrates two 150kΩ resistors that form a precision VCC/2 voltage divider connected directly to the IN+ pin. This eliminates the need for external bias resistors in AC-coupled single-supply applications. For optimal high-frequency PSRR, a 0.1µF capacitor from IN+ to VEE is recommended per the datasheet.
Can the MAX4175AGEUK+T drive an ADC input directly?
Yes - the MAX4175AGEUK+T delivers rail-to-rail output swing into 1kΩ loads and maintains excellent DC accuracy (±0.5mV offset, 0.1% gain error), making it well-suited to drive SAR and sigma-delta ADC inputs directly. Its 330kHz −3dB bandwidth and 7µs 0.01% settling time ensure fidelity for DC and low-frequency sensor signals sampled at ≤100ksps.
What is the maximum capacitive load the MAX4175AGEUK+T can drive without instability?
The MAX4175AGEUK+T is specified stable with capacitive loads up to 470pF when driving a 100kΩ load, with no external isolation resistor required. Driving larger loads (e.g., >600pF) may cause peaking or oscillation; in such cases, a 10–100Ω series isolation resistor between OUT and the load restores stability while preserving signal integrity for most sensor and filter applications.
Is the MAX4175AGEUK+T pin-compatible with other GainAmp devices?
Yes - the MAX4175AGEUK+T shares identical 5-pin SOT23 pinout and footprint with MAX4174/MAX4274/MAX4275 variants. However, pin compatibility does not imply functional interchangeability: MAX4174 lacks internal VCC/2 bias, and MAX4275 is a dual-channel version. Swapping requires verification of bias architecture, channel count, and gain value in the target application.
MAX4175AGEUK+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:
- 355µA
- 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
MAX4175AGEUK+T FAQ
1.How can I place an order for MAX4175AGEUK+T through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX4175AGEUK+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 MAX4175AGEUK+T reliable?
The price and inventory of MAX4175AGEUK+T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX4175AGEUK+T is usually 5 days.
3.What payment methods are accepted for MAX4175AGEUK+T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX4175AGEUK+T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX4175AGEUK+T?
MAX4175AGEUK+T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX4175AGEUK+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 MAX4175AGEUK+T?
For technical support, including MAX4175AGEUK+T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX4175AGEUK+T requirements.
6.How does Aetrix verify that MAX4175AGEUK+T is sourced from the original manufacturer or authorized distributors?
All MAX4175AGEUK+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 MAX4175AGEUK+T meets industry standards.
7.What is the process for return or replacement of MAX4175AGEUK+T?
All MAX4175AGEUK+T units undergo pre-shipment inspection (PSI). If there is an issue with MAX4175AGEUK+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 MAX4175AGEUK+T part is unused and in its original packaging.
Return procedure for MAX4175AGEUK+T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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