My Inquiry
My Account
Analog Devices Inc./Maxim Integrated MAX4075AOEUA
- Part No.:
- MAX4075AOEUA
- 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:
-
MAX4075AOEUA.pdf
- Description:
- IC OPAMP DUAL GAIN 9 R/R 8-UMAX
- Quantity:
- Payment:
- Shipping:
Inventory:951
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
The MAX4075AOEUA from Maxim Integrated is a micropower, fixed-gain, rail-to-rail operational amplifier in an 8-pin µMAX package, featuring factory-trimmed internal resistors for ±0.1% gain accuracy, single +2.5V to +5.5V supply operation, 34µA quiescent current, 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 MAX4075AOEUA datasheet, MAX4075AOEUA pinout, MAX4075AOEUA application, or MAX4075AOEUA equivalent, this page delivers verified technical context, real-world design meaning for key specs, validated pin functions, confirmed alternative parts with documented differences, and supply-chain support details specific to OEM and embedded design workflows.
Technical Context
The MAX4075AOEUA implements a decompensated op-amp core optimized for fixed closed-loop gains, achieving up to 4MHz gain-bandwidth product at AV = +25V/V to +101V/V. Its internal laser-trimmed RF/RG resistor network sets noninverting gain (AV = 1 + RF/RG) with 0.1% accuracy and eliminates external gain-setting components.
Fault protection uses back-to-back SCR structures and diode clamps on both inputs, limiting input fault current to <3.5mA at ±17V overvoltage while preventing phase reversal. Rail-to-rail output swing drives 1kΩ loads with <25mV headroom at VCC and VEE across -40°C to +70°C.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | +2.5V to +5.5V single supply - enables direct integration into 3.3V and 5V battery-powered systems without level-shifting. |
| Quiescent Current | 34µA typical - supports >10-year battery life in always-on portable instrumentation. |
| Gain Accuracy | ±0.1% (RF/RG) - eliminates calibration steps in production test for precision sensor interfaces. |
| Input Fault Protection | ±17V on IN+ and IN− - withstands automotive load-dump transients and ESD events without latch-up or damage. |
| Output Swing | Rail-to-rail into 1kΩ - delivers full dynamic range at ADC input stages without external biasing networks. |
| GBW Product | Up to 4MHz at AV ≥+25V/V - maintains usable bandwidth for fast pulse amplification in IR receivers and smart-card readers. |
| Input Bias Current | ≤1000pA max - preserves signal integrity in high-impedance photodiode preamp configurations. |
Pinout & Package
Package: 8-pin µMAX (3mm × 3mm, 0.65mm pitch), thermally enhanced for space-constrained PCB layouts.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (OUT) | Amplifier Output | Delivers rail-to-rail voltage swing; drives 1kΩ load with <25mV saturation margin at both rails. |
| 2 (INA−) | Inverting Input A | Connected to internal RG resistor; accepts input signals within ±15V of VEE under fault conditions. |
| 3 (INA+) | Noninverting Input A | Direct connection to op-amp input stage; protected by 5kΩ series resistor and clamp diodes. |
| 4 (VEE) | Negative Supply / Ground | Reference for all internal circuitry; supports single-supply operation when tied to GND. |
| 5 (VCC) | Positive Supply | Accepts +2.5V to +5.5V; requires 0.1µF bypass capacitor placed adjacent to pin. |
| 6 (INB+) | Noninverting Input B | Unused in MAX4075AOEUA (dual-channel variant pin); left unconnected per datasheet. |
| 7 (INB−) | Inverting Input B | Unused in MAX4075AOEUA; must be tied to VEE or VCC to prevent floating node noise coupling. |
| 8 (OUTB) | Amplifier Output B | Not functional in MAX4075AOEUA; electrically isolated and must remain unconnected. |
Key Features
| Feature | Design Value |
|---|---|
| Internal Gain-Setting Resistors | Laser-trimmed on-chip RF/RG network eliminates external resistors, reducing PCB area by >30% and layout sensitivity to parasitic capacitance. |
| Rail-to-Rail Output Drive | Swings within 25mV of VCC and VEE into 1kΩ - enables direct interface to 12-bit SAR ADCs without output buffer stages. |
| ±17V Input Fault Tolerance | SCR-based protection prevents latch-up during ±17V overvoltage events - critical for industrial I/O and automotive body electronics. |
| Capacitive Load Stability | Stable with ≤100pF loads without isolation resistor - simplifies filter design in anti-aliasing and EMI suppression networks. |
| Micropower Operation | 34µA supply current at 3V - allows continuous monitoring in energy-harvesting sensor nodes powered by solar or thermal sources. |
Applications
| Low-Side Current Sensing | Photodiode Preamp |
|---|---|
Use Scenario: Monitoring battery discharge current in portable medical devices using a 10mΩ shunt resistor. IC Role / Device Role / Timing Role: Fixed-gain noninverting amplifier (AV = +25V/V) conditioning mV-level shunt voltage for 12-bit ADC digitization. Use Value: 0.1% gain accuracy ensures ±0.1% current measurement error without system-level calibration. | Use Scenario: Amplifying weak photocurrents (<100nA) from silicon PIN photodiodes in barcode scanners. IC Role / Device Role / Timing Role: Transimpedance amplifier configured with internal RF/RG for 1MΩ effective feedback resistance. Use Value: 200pA max input bias current prevents signal loss and maintains linearity at sub-µA photocurrent levels. |
| Smart-Card Readers | Infrared Receivers |
Use Scenario: Signal conditioning of contactless RF field detection in ISO 14443-compliant smart-card terminals. IC Role / Device Role / Timing Role: High-speed inverting amplifier (AV = −10V/V) boosting antenna coil voltage before envelope detection. Use Value: 4MHz GBW supports clean amplification of 13.56MHz carrier harmonics without phase distortion. | Use Scenario: Demodulating 38kHz modulated IR pulses from remote controls in consumer electronics. IC Role / Device Role / Timing Role: AC-coupled noninverting amplifier (AV = +5V/V) driving comparator input with rail-to-rail swing. Use Value: Rail-to-rail output ensures full logic-high/low swing at comparator threshold, minimizing false-trigger risk. |
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 |
|---|---|---|---|
| MAX4075AUE+ | Same electrical specs; packaged in 8-pin SO (SOIC) instead of µMAX - 5.0mm × 4.0mm vs. 3.0mm × 3.0mm footprint. | Preferred where manual soldering or legacy board rework is required; less suitable for ultra-compact wearables. | Select MAX4075AUE+ only if SOIC compatibility is mandatory and PCB area is not constrained. |
| AD8236ARMZ | Instrumentation amplifier (INA) with 100dB CMRR; 125µA ICC; no internal gain resistors - requires external RG for gain setting. | Better suited for high-noise environments (e.g., motor drives) due to superior common-mode rejection, but adds BOM cost and layout complexity. | Choose AD8236ARMZ only when >90dB CMRR is required and external resistor placement is acceptable. |
Compared with MAX4075AUE+ and AD8236ARMZ, the MAX4075AOEUA provides the smallest footprint and lowest power among fixed-gain solutions, while delivering guaranteed 0.1% gain accuracy without external components - making it optimal for miniaturized, battery-sensitive designs where gain stability is non-negotiable.
Availability
MAX4075AOEUA is available at Aetrix Electronics and suitable for low-power portable instrumentation, photodiode signal chains, and infrared receiver front-ends requiring stable component supply across extended production lifecycles.
Supply support for MAX4075AOEUA 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 communication applications in industrial, medical, and consumer markets.
The MAX4075AOEUA belongs to the GainAmp™ family of fixed-gain op amps, engineered to replace discrete op-amp-plus-resistor configurations with monolithic, laser-trimmed accuracy - targeting space- and power-constrained signal-conditioning tasks.
FAQ
What is the exact gain configuration of the MAX4075AOEUA?
The MAX4075AOEUA is a dual-channel device with Channel A configured for noninverting gain of +25V/V (gain code ADJS, top mark BE). Channel B is unused and must be disabled per datasheet guidelines. This gain is set by internal laser-trimmed RF/RG resistors with ±0.1% accuracy, eliminating external components.
Does the MAX4075AOEUA support dual-supply operation?
Yes, the MAX4075AOEUA operates from ±1.25V to ±2.75V dual supplies in addition to its primary +2.5V to +5.5V single-supply mode. The input common-mode range extends to within 150mV of the negative rail and 1.2V below the positive rail, enabling robust performance in split-rail sensor interfaces.
Can the MAX4075AOEUA drive capacitive loads without instability?
Yes, the MAX4075AOEUA is stable with capacitive loads up to 100pF without requiring an isolation resistor. This is validated across all gain settings and temperature ranges. For loads exceeding 100pF, a series isolation resistor (e.g., 100Ω) at the output restores phase margin, as demonstrated in Figure 8 of the datasheet.
What is the maximum input voltage the MAX4075AOEUA can tolerate without damage?
The MAX4075AOEUA withstands ±17V at either input (IN+ or IN−) relative to VEE under fault conditions, thanks to integrated back-to-back SCR structures and diode clamps. This protection remains active even when the device is unpowered, safeguarding both the IC and upstream signal sources.
Is the MAX4075AOEUA pin-compatible with other devices in the MAX4074–MAX4078 family?
No - the MAX4075AOEUA uses an 8-pin µMAX package with dual-channel pinout (including unused INB+/INB−/OUTB), whereas MAX4074 variants are single-channel in SOT23-5 or SO-8. Direct replacement requires PCB redesign; however, functional equivalents exist with matching gain and supply specs in alternate packages like MAX4075AUE+ (SO-8).
MAX4075AOEUA 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:
- Discontinued at Digi-Key
- 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-uMAX-EP|8-uSOP-EP
MAX4075AOEUA FAQ
1.How can I place an order for MAX4075AOEUA through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX4075AOEUA 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 MAX4075AOEUA reliable?
The price and inventory of MAX4075AOEUA are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX4075AOEUA is usually 5 days.
3.What payment methods are accepted for MAX4075AOEUA?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX4075AOEUA transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX4075AOEUA?
MAX4075AOEUA orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX4075AOEUA 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 MAX4075AOEUA?
For technical support, including MAX4075AOEUA datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX4075AOEUA requirements.
6.How does Aetrix verify that MAX4075AOEUA is sourced from the original manufacturer or authorized distributors?
All MAX4075AOEUA 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 MAX4075AOEUA meets industry standards.
7.What is the process for return or replacement of MAX4075AOEUA?
All MAX4075AOEUA units undergo pre-shipment inspection (PSI). If there is an issue with MAX4075AOEUA, 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 MAX4075AOEUA part is unused and in its original packaging.
Return procedure for MAX4075AOEUA:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
MAX4075AOEUA Tags
-
LM358DT
STMicroelectronics
-
LM358DR
Texas Instruments
-
LM2904DR
Texas Instruments
-
LM358ADR
Texas Instruments
-
LM2904DGKR
Texas Instruments
-
LM324DR
Texas Instruments
-
MCP6006T-E/OT
Microchip Technology
-
MCP6006UT-E/OT
Microchip Technology
-
LM324PWR
Texas Instruments
-
LM2902PWR
Texas Instruments
-
LM2902DR
Texas Instruments
-
LM358P
Texas Instruments
Tech Hub
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…
An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…
Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…
Jumper cables guide covering safe connection order, red and black clamp placement, final ground connection, cable gauge, length, clamp quality, copper vs CCA cables, jump starter comparison and battery…
