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Analog Devices Inc./Maxim Integrated MAX4175BNEUK-T
- Part No.:
- MAX4175BNEUK-T
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- SC-74A, SOT-753
- Datasheet:
-
MAX4175BNEUK-T.pdf
- Description:
- IC OPAMP GP 1 CIRCUIT SOT23-5
- Quantity:
- Payment:
- Shipping:
Inventory:2,500
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Product details
Overview
MAX4175BNEUK-T from Maxim Integrated is a single-channel, fixed-gain, rail-to-rail output operational amplifier with internal VCC/2 biasing and precision laser-trimmed gain-setting resistors. It delivers +5V/V noninverting gain with 0.1% accuracy, operates from +2.5V to +5.5V supply, consumes only 300µA, and features ±17V input fault protection. It is used in low-side current-sense amplification and photodiode preamplification within portable instrumentation.
For engineers reviewing the MAX4175BNEUK-T datasheet, MAX4175BNEUK-T pinout, MAX4175BNEUK-T application, or MAX4175BNEUK-T equivalent, key selection criteria include its integrated VCC/2 bias for single-supply AC-coupled designs, guaranteed 0.1% gain accuracy without external resistors, rail-to-rail output swing into 1kΩ, and stability with up to 470pF capacitive loads.
Technical Context
The MAX4175BNEUK-T integrates a unity-gain-stable op-amp core with factory-laser-trimmed RF/RG resistor network, enabling precise +5V/V closed-loop gain without external components. Its internal 150kΩ/150kΩ voltage divider establishes a stable VCC/2 bias at the IN+ terminal, eliminating external biasing circuitry for AC-coupled inputs.
This device uses strategic decompensation optimized for +5V/V gain, achieving a 3.3MHz –3dB bandwidth and 23MHz gain-bandwidth product. Input protection includes back-to-back SCRs and diode clamps, allowing ±17V fault tolerance without phase reversal or excessive current draw.
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 and low-voltage industrial systems |
| Supply Current | 300µA typical - enables ultra-low-power operation in portable and energy-constrained applications |
| Bandwidth | 3.3MHz –3dB bandwidth at AV = +5V/V - provides sufficient speed for sensor signal conditioning and IR receiver front-ends |
| Input Fault Protection | ±17V on IN+ or IN− - protects against transient overvoltage without latch-up or damage in harsh ESD environments |
| Output Swing | Rail-to-rail into 1kΩ load - maximizes dynamic range across full supply voltage, critical for single-supply ADC interfacing |
| Capacitive Load Stability | Stable up to 470pF - allows direct driving of ADC input capacitance or long PCB traces without isolation resistor |
Pinout & Package
SOT23-5 package: compact 2.9mm × 1.6mm surface-mount footprint with exposed pad for thermal performance in space-constrained designs.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (IN−) | Inverting input | Connected internally to RG resistor; accepts differential or inverting signal; limited to supply rails to avoid distortion |
| 2 (IN+) | Noninverting input | Biased internally to VCC/2 via 150kΩ resistors; enables DC-centered operation in single-supply AC-coupled circuits |
| 3 (VEE) | Negative supply / ground | Reference node for single-supply operation (0V) or negative rail in dual-supply configurations |
| 4 (OUT) | Amplifier output | Rail-to-rail capable; drives 1kΩ load while maintaining DC accuracy; stable with ≤470pF capacitive load |
| 5 (VCC) | Positive supply | +2.5V to +5.5V input; requires 0.1µF bypass capacitor to ground for noise suppression and stability |
Key Features
| Feature | Design Value |
|---|---|
| Integrated VCC/2 bias network | Eliminates two external 150kΩ resistors and associated layout area, reducing BOM count and improving thermal tracking in portable instruments |
| 0.1% gain accuracy | Factory-laser-trimmed RF/RG ratio ensures consistent gain across temperature and unit-to-unit without calibration |
| Rail-to-rail output stage | Delivers full-scale output swing (e.g., 0–5V from 5V supply) into 1kΩ, maximizing SNR when interfacing with 12-bit+ SAR ADCs |
| ±17V input fault tolerance | Enables robust operation in automotive accessory modules or industrial sensors exposed to load-dump transients |
| 470pF capacitive load stability | Supports direct connection to high-input-capacitance devices (e.g., 300pF ADC inputs + 100pF trace) without added series resistance |
Applications
| Portable Instruments | Smart-Card Readers |
|---|---|
Use Scenario: Signal conditioning of thermistor or RTD bridge outputs in handheld multimeters and data loggers. IC Role / Device Role / Timing Role: Fixed-gain amplifier with internal VCC/2 bias provides DC-centered amplification of low-level analog sensor signals using single 3.3V supply. Use Value: Eliminates external bias resistors and matching networks, reducing PCB area by >12 mm² and improving thermal drift performance. | Use Scenario: Amplifying weak analog signals from ISO 7816 smart-card contact interfaces during power-on reset and protocol negotiation. IC Role / Device Role / Timing Role: Low-noise, fast-settling (+5V/V) amplifier conditions card voltage signatures prior to microcontroller ADC sampling. Use Value: 3.3MHz bandwidth and 7µs settling time to 0.01% ensure accurate capture of 1–5 MHz card clock edges and data transitions. |
| Infrared Receivers | Low-Side Current-Sense |
Use Scenario: Amplifying modulated IR photodiode currents in remote control receivers and proximity sensors. IC Role / Device Role / Timing Role: Photodiode preamplifier with rail-to-rail output and internal VCC/2 bias enables full-swing AC coupling from zero-biased diodes. Use Value: 90nV/√Hz input voltage noise and 4fA/√Hz current noise preserve signal integrity for µV-level IR pulses under ambient light. | Use Scenario: Measuring shunt voltage in battery-powered motor controllers and USB PD chargers. IC Role / Device Role / Timing Role: Noninverting +5V/V amplifier converts mV-level shunt drops into clean 0–2.5V signals for MCU ADCs. Use Value: ±17V input fault rating withstands inductive kickback during MOSFET switching, preventing false trips or latch-up. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar fixed-gain amplifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX4174BNEUK-T | No internal VCC/2 bias; requires external bias network for single-supply AC coupling; identical gain, bandwidth, and supply specs. | Suitable for DC-coupled or dual-supply designs where IN+ bias is externally controlled. | Select when design requires independent bias point tuning or compatibility with legacy MAX4174 layouts. |
| AD8236ARMZ-R7 | Instrumentation amplifier architecture; 1.5V/V to 1000V/V programmable gain; higher quiescent current (120µA per amp); no integrated VCC/2. | Used in high-precision medical and strain-gauge applications requiring common-mode rejection >100dB. | Choose when CMRR >90dB or differential input capability is required; not drop-in compatible due to different topology and pinout. |
Compared with MAX4174BNEUK-T, the MAX4175BNEUK-T saves two external resistors and simplifies layout for AC-coupled single-supply use, while AD8236ARMZ-R7 offers superior CMRR but demands more board area, higher cost, and external gain-setting components.
Availability
MAX4175BNEUK-T is available at Aetrix Electronics and suitable for portable instruments, smart-card readers, infrared receivers, and low-side current-sense applications requiring stable component supply, rapid prototyping support, and long-term production continuity.
Supply support for MAX4175BNEUK-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 industrial, communications, computing, and consumer applications.
The MAX4175BNEUK-T belongs to the GainAmp™ family of fixed-gain amplifiers, engineered to replace discrete op-amp-plus-resistor configurations with monolithic, laser-trimmed solutions for space- and cost-sensitive signal conditioning.
FAQ
What is the exact gain configuration and accuracy of the MAX4175BNEUK-T?
The MAX4175BNEUK-T is configured for noninverting +5V/V gain with 0.1% accuracy achieved through factory laser trimming of internal RF/RG resistors. This specification is guaranteed over the full –40°C to +85°C operating temperature range and does not require external calibration. The MAX4175BNEUK-T maintains this accuracy without drift compensation circuitry or user adjustment.
Does the MAX4175BNEUK-T require external biasing components for single-supply operation?
No. The MAX4175BNEUK-T integrates two 150kΩ resistors forming a VCC/2 voltage divider directly at the IN+ pin, eliminating the need for external bias resistors in AC-coupled single-supply applications. A 0.1µF bypass capacitor from IN+ to ground is recommended to suppress high-frequency supply noise, but no resistive bias network is required.
What is the maximum capacitive load the MAX4175BNEUK-T can drive without oscillation?
The MAX4175BNEUK-T is specified stable with capacitive loads up to 470pF when driving a 100kΩ load, per the manufacturer's electrical characteristics table. This stability is achieved without external isolation resistors, enabling direct interface to high-input-capacitance ADCs, filters, or long PCB traces. Exceeding 470pF may require an output series resistor for phase margin recovery.
How does the ±17V input fault protection work on the MAX4175BNEUK-T?
The MAX4175BNEUK-T implements ±17V input fault protection using back-to-back SCR structures at both IN+ and IN− pins, combined with diode clamps to VCC and VEE. During overvoltage events, current is limited to <3.5mA per input by internal 5kΩ (IN+) and RG (IN−) resistors, preventing latch-up or permanent damage while avoiding output phase reversal.
Can the MAX4175BNEUK-T be used in dual-supply configurations?
Yes. The MAX4175BNEUK-T supports dual-supply operation from ±1.25V to ±2.75V. In such configurations, VEE is connected to the negative rail (e.g., –1.25V), and the internal VCC/2 bias becomes VREF = (VCC – VEE)/2. For ground-referenced signals, users may bypass or override the internal bias using external circuitry, though the IN+ pin remains internally tied to the resistor divider.
MAX4175BNEUK-T Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Package/Case:
- SC-74A, SOT-753
- Packaging:
- Bulk
- Product Status:
- Active
- Amplifier Type:
- General Purpose
- Number of Circuits:
- 1
- Output Type:
- Rail-to-Rail
- Slew Rate:
- 0.7V/µs
- Gain Bandwidth Product:
- 2 MHz
- -3db Bandwidth:
- 230 kHz
- 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
MAX4175BNEUK-T FAQ
1.How can I place an order for MAX4175BNEUK-T through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX4175BNEUK-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 MAX4175BNEUK-T reliable?
The price and inventory of MAX4175BNEUK-T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX4175BNEUK-T is usually 5 days.
3.What payment methods are accepted for MAX4175BNEUK-T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX4175BNEUK-T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX4175BNEUK-T?
MAX4175BNEUK-T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX4175BNEUK-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 MAX4175BNEUK-T?
For technical support, including MAX4175BNEUK-T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX4175BNEUK-T requirements.
6.How does Aetrix verify that MAX4175BNEUK-T is sourced from the original manufacturer or authorized distributors?
All MAX4175BNEUK-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 MAX4175BNEUK-T meets industry standards.
7.What is the process for return or replacement of MAX4175BNEUK-T?
All MAX4175BNEUK-T units undergo pre-shipment inspection (PSI). If there is an issue with MAX4175BNEUK-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 MAX4175BNEUK-T part is unused and in its original packaging.
Return procedure for MAX4175BNEUK-T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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