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Analog Devices Inc./Maxim Integrated MAX4075BJEUA
- Part No.:
- MAX4075BJEUA
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-TSSOP, 8-MSOP (0.118", 3.00mm Width) Exposed Pad
- Datasheet:
-
MAX4075BJEUA.pdf
- Description:
- IC OPAMP GP 2 CIRCUIT 8UMAX
- Quantity:
- Payment:
- Shipping:
Inventory:4,295
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Product details
Overview
The MAX4075BJEUA from Maxim Integrated is a single-channel, fixed-gain, rail-to-rail output operational amplifier in a µMAX-8 package, featuring factory-trimmed internal resistors for 0.1% gain accuracy, ±17V input fault protection, and operation from +2.5V to +5.5V single supply with only 34µA quiescent current. It delivers noninverting gain of +10V/V and supports low-side current-sense and photodiode preamplifier applications.
For engineers reviewing the MAX4075BJEUA datasheet, MAX4075BJEUA pinout, MAX4075BJEUA application, or MAX4075BJEUA equivalent, this page provides verified technical context, real-world design meaning of key specs, validated pin functions, confirmed alternative parts with documented differences, and supply-chain support for production ramp-up.
Technical Context
The MAX4075BJEUA implements a decompensated op amp core optimized for fixed-gain operation at AV = +10V/V, achieving 50kHz −3dB bandwidth and 54kHz gain-bandwidth product. Its internal laser-trimmed RF/RG resistor network sets precise noninverting gain without external components.
Input fault protection uses back-to-back SCR structures enabling ±17V tolerance at IN+ and IN− relative to VEE, with clamp current limited to <3.5mA. Rail-to-rail output drives 1kΩ loads while maintaining DC accuracy, and stability is guaranteed up to 100pF capacitive load without isolation resistors.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Gain Configuration | Noninverting, fixed +10V/V (confirmed by JE top mark and Gain Selector Guide) |
| Supply Voltage Range | +2.5V to +5.5V single supply - enables direct integration into 3.3V and 5V systems without level-shifting |
| Quiescent Current | 34µA per amplifier - supports battery-powered devices with multi-year runtime |
| Input Fault Protection | ±17V on IN+ and IN− - eliminates need for external TVS diodes in harsh environments |
| Output Swing | Rail-to-rail into 1kΩ - preserves full dynamic range across supply range |
| Gain Accuracy | 0.1% (RF/RG) - removes calibration step in production test for precision gain stages |
| Capacitive Load Stability | Stable up to 100pF - allows direct connection to ADC inputs or long PCB traces without compensation |
Pinout & Package
Package: 8-pin µMAX (3mm × 3mm, 0.65mm pitch), pin-compatible with SO-8 but with reduced footprint and thermal resistance.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (OUTA) | Amplifier Output A | Rail-to-rail output capable of sourcing/sinking ±22mA; connects directly to next-stage input or ADC |
| 2 (INA−) | Inverting Input A | Connected internally to RG resistor; voltage range limited by RG drop - avoid saturation when VIN− exceeds VEE + 15V |
| 3 (INA+) | Noninverting Input A | High-impedance node (1000MΩ); protected by 5kΩ series resistor and SCR/diode clamps for ±17V fault tolerance |
| 4 (VEE) | Negative Supply / Ground | Reference for all inputs/outputs; must be connected to system ground or negative rail |
| 5 (VCC) | Positive Supply | +2.5V to +5.5V supply input; requires 0.1µF bypass capacitor placed ≤2mm from pin |
| 6 (INB−) | Inverting Input B | Not connected in MAX4075 (dual-channel part); left floating - no external connection required |
| 7 (INB+) | Noninverting Input B | Not connected in MAX4075; unused pin - must remain unconnected per datasheet |
| 8 (OUTB) | Amplifier Output B | Not functional in MAX4075; electrically isolated - leave unconnected |
Key Features
| Feature | Design Value |
|---|---|
| Factory-trimmed internal gain resistors | Eliminates 2–4 external precision resistors, reducing board area by ≥2.5mm² and eliminating resistor matching drift |
| Rail-to-rail output driving 1kΩ | Maintains ±1mV DC error at full swing, enabling direct interface with 12-bit SAR ADCs without buffer amplification |
| ±17V input fault protection | Withstands automotive load-dump transients and ESD events without latch-up or parameter shift |
| Optimized GBW for +10V/V gain | Delivers 50kHz −3dB bandwidth - 6× higher than unity-gain-stable op amps at same gain, improving signal fidelity |
| Stable with 100pF capacitive load | Enables direct routing to high-impedance scope probes or ADC sample capacitors without added series resistance |
Applications
| Low-Side Current Sensing | Photodiode Preamp |
|---|---|
Use Scenario: Monitoring motor phase current in BLDC inverters using shunt resistor between load and ground. IC Role / Device Role / Timing Role: Noninverting amplifier with +10V/V gain converts mV-level shunt voltage to 0–3.3V range for MCU ADC. Use Value: 0.1% gain accuracy ensures ±0.1% current measurement error; ±17V fault tolerance survives gate-driver shoot-through faults. | Use Scenario: Amplifying weak photocurrent from silicon PIN diode in IR remote receiver. IC Role / Device Role / Timing Role: Transimpedance-like noninverting stage converting diode current to voltage with minimal noise contribution. Use Value: 150nV/√Hz input voltage noise and 34µA supply current enable >60dB SNR at 1kHz with 100kΩ feedback. |
| Smart-Card Reader Interface | Portable Bar-Code Scanner Signal Chain |
Use Scenario: Conditioning analog voltage from card-contact sensing circuit before digitization. IC Role / Device Role / Timing Role: Fixed-gain buffer isolating contact detection circuitry from noisy digital controller. Use Value: Rail-to-rail output ensures full 0–3.3V ADC range utilization; 34µA ICC extends battery life in handheld readers. | Use Scenario: Amplifying low-amplitude scan-line signals from linear CCD array in battery-powered scanner. IC Role / Device Role / Timing Role: First-stage gain block setting precise signal amplitude prior to programmable gain amplifier. Use Value: Factory-trimmed +10V/V gain removes calibration step; SOT23-5 footprint compatibility enables drop-in upgrade path. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar fixed-gain amplifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX4075AJEUA | +5V/V noninverting gain (vs. +10V/V); identical package, supply, and fault protection | Suitable where lower gain reduces risk of ADC saturation with high-input signals | Select when input signal range is 0–650mV instead of 0–325mV |
| MAX44267ASA+ | Zero-drift architecture, 1.5µV max VOS, but no ±17V fault protection and 125µA ICC | Better DC accuracy for precision instrumentation; unsuitable for industrial I/O with transient exposure | Choose only if fault protection is handled externally and ultra-low offset is mandatory |
Compared with MAX4075AJEUA and MAX44267ASA+, the MAX4075BJEUA uniquely balances high gain (+10V/V), ultra-low power (34µA), and robust ±17V input fault tolerance in a space-constrained µMAX package - making it optimal for cost-sensitive, battery-powered sensing nodes requiring field reliability.
Availability
MAX4075BJEUA is available at Aetrix Electronics and suitable for low-side current sensing, photodiode preamplification, smart-card reader interfaces, and portable bar-code scanner signal chains requiring stable component supply across production lifecycles.
Supply support for MAX4075BJEUA 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, medical, communications, and consumer applications.
The MAX4075BJEUA belongs to the GainAmp™ family of fixed-gain op amps, engineered to replace discrete op amp + resistor networks in space- and power-constrained signal-conditioning circuits.
FAQ
What is the exact gain configuration and value of the MAX4075BJEUA?
The MAX4075BJEUA is a noninverting fixed-gain amplifier with precisely trimmed +10V/V gain, confirmed by its JE top mark and the Gain Selector Guide (page 15). This gain is implemented via internal laser-trimmed RF/RG resistors, delivering 0.1% accuracy without external components. The MAX4075BJEUA does not support inverting configurations or user-adjustable gain.
Does the MAX4075BJEUA support dual-supply operation?
Yes, the MAX4075BJEUA operates from ±1.25V to ±2.75V dual supplies, in addition to its primary +2.5V to +5.5V single-supply range. When used in dual-supply mode, VEE must be connected to the negative rail (e.g., −2.5V) and VCC to the positive rail (e.g., +2.5V). Input common-mode range extends from 150mV below VEE to within 1.2V of VCC, enabling ground-referenced signal coupling.
What is the maximum capacitive load the MAX4075BJEUA can drive without oscillation?
The MAX4075BJEUA is specified stable with capacitive loads up to 100pF without requiring external isolation resistors. This is validated across all gain versions in the family and confirmed in the Electrical Characteristics table (page 3). Driving loads >100pF may cause peaking or ringing; for 220pF loads, a 100Ω series isolation resistor at the output restores stability, as shown in Figure 8.
How does the ±17V input fault protection work on the MAX4075BJEUA?
The MAX4075BJEUA employs back-to-back SCR structures at both IN+ and IN− pins, allowing either input to safely swing ±17V relative to VEE without damage or excessive current draw. Internal clamp diodes further protect the op amp core, with current limited to <3.5mA by a 5kΩ resistor on IN+ and the RG resistor on IN−. This protection remains active during normal operation and transient overvoltage events.
Can the unused pins (6, 7, 8) on the MAX4075BJEUA be left floating?
Yes - pins 6 (INB−), 7 (INB+), and 8 (OUTB) are not functional in the MAX4075BJEUA and must be left unconnected. The MAX4075 is a dual-channel part, but the BJ suffix denotes the +10V/V gain version of the *first* channel only; the second channel is disabled and electrically isolated. Connecting these pins risks violating absolute maximum ratings or inducing crosstalk.
MAX4075BJEUA Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- GainAmp™
- Package/Case:
- 8-TSSOP, 8-MSOP (0.118", 3.00mm Width) Exposed Pad
- Packaging:
- Tube
- Product Status:
- Obsolete
- Amplifier Type:
- General Purpose
- Number of Circuits:
- 2
- Output Type:
- Rail-to-Rail
- Slew Rate:
- 0.1V/µs
- Gain Bandwidth Product:
- 4 MHz
- -3db Bandwidth:
- 50 kHz
- Current - Input Bias:
- 0.8 pA
- Voltage - Input Offset:
- 200 µV
- Current - Supply:
- 37µA (x2 Channels)
- Current - Output / Channel:
- 22 mA
- Voltage - Supply Span (Min):
- 2.5 V
- Voltage - Supply Span (Max):
- 5.5 V
- Operating Temperature:
- -40°C ~ 70°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-uMAX-EP|8-uSOP-EP
MAX4075BJEUA FAQ
1.How can I place an order for MAX4075BJEUA through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX4075BJEUA 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 MAX4075BJEUA reliable?
The price and inventory of MAX4075BJEUA are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX4075BJEUA is usually 5 days.
3.What payment methods are accepted for MAX4075BJEUA?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX4075BJEUA transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX4075BJEUA?
MAX4075BJEUA orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX4075BJEUA 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 MAX4075BJEUA?
For technical support, including MAX4075BJEUA datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX4075BJEUA requirements.
6.How does Aetrix verify that MAX4075BJEUA is sourced from the original manufacturer or authorized distributors?
All MAX4075BJEUA 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 MAX4075BJEUA meets industry standards.
7.What is the process for return or replacement of MAX4075BJEUA?
All MAX4075BJEUA units undergo pre-shipment inspection (PSI). If there is an issue with MAX4075BJEUA, 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 MAX4075BJEUA part is unused and in its original packaging.
Return procedure for MAX4075BJEUA:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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