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Analog Devices Inc./Maxim Integrated MAX4075AOESA+
- Part No.:
- MAX4075AOESA+
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
MAX4075AOESA+.pdf
- Description:
- IC OPAMP GP 2 CIRCUIT 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:3,322
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Product details
Overview
The MAX4075AOESA+ from Maxim Integrated is a single-channel, fixed-gain, rail-to-rail output operational amplifier in an 8-pin SO package, featuring factory-trimmed internal resistors for ±0.1% gain accuracy, 34µA supply current, +2.5V to +5.5V single-supply operation, and ±17V input fault protection. It serves as a precision signal-conditioning amplifier in low-side current-sense and photodiode preamplifier circuits.
For engineers reviewing the MAX4075AOESA+ datasheet, MAX4075AOESA+ pinout, MAX4075AOESA+ application, or MAX4075AOESA+ equivalent, key selection criteria include confirmed fixed noninverting gain (+25V/V), SOT23-5-compatible pinout with VEE/IN+/IN-/OUT/VCC mapping, rail-to-rail output swing into 1kΩ, and fault-tolerant input voltage range - all validated for portable battery-powered equipment and infrared remote receivers.
Technical Context
The MAX4075AOESA+ implements a decompensated op amp core optimized for fixed-gain operation, delivering 120kHz −3dB bandwidth at AV = +25V/V and up to 4MHz GBW product across higher gains (e.g., +51V/V to +101V/V). Its internal laser-trimmed RF/RG resistor network eliminates external components while maintaining 0.1% gain accuracy over temperature.
Input stage protection includes back-to-back SCR structures and diode clamps with 5kΩ series resistance on IN+ and RG on IN−, limiting fault current to <3.5mA at ±17V overvoltage. The device operates with rail-to-rail output swing into 1kΩ load while preserving DC accuracy and remains stable with capacitive loads ≤100pF without isolation resistors.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Fixed Gain | +25V/V noninverting - eliminates external feedback resistors and layout sensitivity |
| Supply Voltage Range | +2.5V to +5.5V - supports Li-ion, alkaline, and regulated 3.3V/5V systems |
| Supply Current | 34µA typical - enables multi-year battery life in portable instrumentation |
| Input Fault Protection | ±17V on IN+ and IN− - prevents latch-up or damage during sensor overvoltage events |
| −3dB Bandwidth | 120kHz at AV = +25V/V - provides adequate response for DC-coupled current sensing and IR demodulation |
| Output Swing | Rail-to-rail into 1kΩ - delivers full dynamic range at low supply voltages without headroom loss |
| Gain Accuracy | ±0.1% - ensures predictable signal scaling without calibration in production |
Pinout & Package
MAX4075AOESA+ uses an 8-pin SO (Small Outline) package with standard op amp pinout: Pin 1 = OUT, Pin 2 = IN−, Pin 3 = IN+, Pin 4 = VEE (ground), Pin 5 = VCC, Pins 6–8 = NC (no connection).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Amplifier Output | Delivers rail-to-rail voltage with <0.2Ω closed-loop output impedance |
| 2 | Inverting Input | Connected internally to RG resistor; accepts differential or single-ended signals within ±15V range |
| 3 | Noninverting Input | Connected internally to 5kΩ series resistor for fault protection; bias point for AC-coupled configurations |
| 4 | Negative Supply / Ground | Reference node for single-supply operation; must be low-impedance for noise immunity |
| 5 | Positive Supply | Accepts +2.5V to +5.5V; requires 0.1µF bypass capacitor placed adjacent to pin |
| 6–8 | No Connection | Not bonded; no PCB routing or thermal consideration required |
Key Features
| Feature | Design Value |
|---|---|
| Factory-trimmed internal gain resistors | Eliminates 2 external resistors, reduces board area by >30%, removes layout-dependent gain drift |
| Rail-to-rail output driving 1kΩ | Maintains ±1mV DC accuracy at full swing, enabling direct interface to ADC inputs without level-shifting |
| ±17V input fault tolerance | Withstands transient overvoltage from ESD or inductive kickback without shutdown or parameter shift |
| Stable with 100pF capacitive load | Supports direct connection to long traces or filtering caps without external compensation networks |
| 0.1% gain accuracy over temperature | Reduces system-level calibration frequency in industrial sensors operating from −40°C to +70°C |
Applications
| Low-Side Current Sensing | Photodiode Preamp |
|---|---|
Use Scenario: Monitoring battery discharge current in handheld medical devices using shunt resistor below ground. IC Role / Device Role / Timing Role: Noninverting amplifier with +25V/V gain converts mV-level shunt voltage to 0–2.5V range for 10-bit ADC. Use Value: ±0.1% gain accuracy ensures ±0.25% current measurement error without per-unit calibration. | Use Scenario: Amplifying weak photocurrent from IR receiver diodes in remote control receivers. IC Role / Device Role / Timing Role: Transimpedance-like configuration with fixed +25V/V gain and rail-to-rail output drives comparator input. Use Value: 120kHz bandwidth supports 38kHz carrier demodulation with <1% distortion at 1Vpp output. |
| Smart Card Reader Interface | Infrared Remote Receiver |
Use Scenario: Conditioning analog voltage from card contact resistance detection circuitry. IC Role / Device Role / Timing Role: Precision DC-coupled amplifier with fixed gain scales contact voltage for microcontroller ADC sampling. Use Value: 34µA quiescent current extends standby battery life to >5 years in tamper-evident card readers. | Use Scenario: Signal conditioning stage after IR phototransistor in consumer remote control receivers. IC Role / Device Role / Timing Role: AC-coupled noninverting amplifier with +25V/V gain and 0.1µF input coupling capacitor. Use Value: ±17V input fault protection prevents damage from ESD events common in handheld remote units. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar fixed-gain op amp applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX4075AEPA+ | Same electrical specs but in 8-pin PDIP package; larger footprint, higher thermal resistance | Preferred for prototyping or through-hole assembly; unsuitable for space-constrained PCBs | Select MAX4075AEPA+ only when manual soldering or breadboarding is required |
| MAX4075AESA+ | Identical SO-8 package and gain (+25V/V), but specified for −40°C to +85°C industrial temperature range | Required for automotive cabin modules or industrial controllers operating beyond +70°C ambient | Choose MAX4075AESA+ when extended temperature qualification is mandatory |
Compared with MAX4075AOESA+, MAX4075AEPA+ trades miniaturization for ease of hand-soldering, while MAX4075AESA+ adds 15°C higher max operating temperature at identical cost and performance - both retain the same +25V/V gain, 34µA supply current, and ±17V fault protection.
Availability
MAX4075AOESA+ is available at Aetrix Electronics and suitable for low-power portable instrumentation, infrared remote receivers, and smart-card reader designs requiring stable component supply, guaranteed gain accuracy, and fault-tolerant analog front-ends.
Supply support for MAX4075AOESA+ 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 power, sensing, and interface applications in industrial, medical, and consumer systems.
The MAX4075AOESA+ 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 fixed gain of the MAX4075AOESA+?
The MAX4075AOESA+ has a fixed noninverting gain of +25V/V, confirmed by its "AO" gain code in the Gain Selector Guide and verified in the Electrical Characteristics table under AV = +25V/V test conditions. This gain is achieved via laser-trimmed internal RF/RG resistors with ±0.1% accuracy, eliminating need for external components.
Does the MAX4075AOESA+ support single-supply operation?
Yes, the MAX4075AOESA+ operates from a single +2.5V to +5.5V supply, with rail-to-rail output swing into 1kΩ and input common-mode range extending from 150mV below VEE to within 1.2V of VCC. Its design explicitly targets single-supply portable equipment such as bar-code scanners and IR receivers.
What is the maximum capacitive load the MAX4075AOESA+ can drive without oscillation?
The MAX4075AOESA+ remains stable with capacitive loads up to 100pF without requiring external isolation resistors, as stated in the Capacitive Load Stability specification. This enables direct connection to filtering capacitors or long PCB traces in current-sense and photodiode applications.
Is the MAX4075AOESA+ pin-compatible with standard op amp footprints?
Yes, the MAX4075AOESA+ uses an industry-standard 8-pin SO package with pin 1 = OUT, pin 2 = IN−, pin 3 = IN+, pin 4 = VEE, and pin 5 = VCC - matching conventional op amp layouts. Pins 6–8 are no-connect and do not require routing, simplifying drop-in replacement of discrete op amp + resistor designs.
What protection does the MAX4075AOESA+ offer against input overvoltage?
The MAX4075AOESA+ features ±17V input fault protection on both IN+ and IN− pins, implemented via back-to-back SCR structures and diode clamps. At ±17V overvoltage, input current is limited to <3.5mA, preventing damage to the IC or upstream signal source - critical for robustness in smart-card and remote-control interfaces.
MAX4075AOESA+ Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- GainAmp™
- Package/Case:
- 8-SOIC (0.154", 3.90mm Width)
- 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:
- 90 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-SOIC
MAX4075AOESA+ FAQ
1.How can I place an order for MAX4075AOESA+ through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX4075AOESA+ 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 MAX4075AOESA+ reliable?
The price and inventory of MAX4075AOESA+ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX4075AOESA+ is usually 5 days.
3.What payment methods are accepted for MAX4075AOESA+?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX4075AOESA+ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX4075AOESA+?
MAX4075AOESA+ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX4075AOESA+ 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 MAX4075AOESA+?
For technical support, including MAX4075AOESA+ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX4075AOESA+ requirements.
6.How does Aetrix verify that MAX4075AOESA+ is sourced from the original manufacturer or authorized distributors?
All MAX4075AOESA+ 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 MAX4075AOESA+ meets industry standards.
7.What is the process for return or replacement of MAX4075AOESA+?
All MAX4075AOESA+ units undergo pre-shipment inspection (PSI). If there is an issue with MAX4075AOESA+, 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 MAX4075AOESA+ part is unused and in its original packaging.
Return procedure for MAX4075AOESA+:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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