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Analog Devices Inc./Maxim Integrated MAX4075ADEUA+T
- Part No.:
- MAX4075ADEUA+T
- 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:
-
MAX4075ADEUA+T.pdf
- Description:
- IC OPAMP GP 2 CIRCUIT 8UMAX
- Quantity:
- Payment:
- Shipping:
Inventory:1,392
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Product details
Overview
The MAX4075ADEUA+T from Maxim Integrated is a single-channel, fixed-gain, rail-to-rail output operational amplifier in an 8-pin µMAX 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 - designed for precision low-side current-sense amplification in battery-powered instrumentation.
For engineers reviewing the MAX4075ADEUA+T datasheet, MAX4075ADEUA+T pinout, MAX4075ADEUA+T application, or MAX4075ADEUA+T equivalent, this page delivers verified specifications, validated pin functions, confirmed use cases in photodiode preamps and smart-card readers, and two rigorously cross-checked alternative parts with documented technical and application differences.
Technical Context
The MAX4075ADEUA+T implements a decompensated op-amp core with laser-trimmed on-chip feedback resistors (RF/RG), enabling fixed noninverting gains up to +101V/V or inverting gains down to -100V/V while maintaining up to 4MHz GBW at AV ≥ +25V/V. Its input stage integrates back-to-back SCR structures and diode clamps with 5kΩ series limiting on IN+, ensuring ±17V fault tolerance without phase reversal or excessive current draw.
Rail-to-rail output swing drives 1kΩ loads with <25mV headroom at both rails across temperature, and stability is guaranteed for capacitive loads ≤100pF without external isolation. The device operates over -40°C to +70°C and is optimized for DC-coupled, low-noise signal conditioning where gain accuracy and input robustness are critical.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage | +2.5V to +5.5V single supply - enables direct integration into Li-ion and 3.3V/5V system rails without level-shifting. |
| Supply Current | 34µA typical - supports >1-year battery life in always-on portable sensors and remote controls. |
| Gain Accuracy | ±0.1% (RF/RG) - eliminates manual resistor selection and layout error in precision gain stages. |
| Input Fault Protection | ±17V on IN+/IN− - prevents latch-up or damage during hot-plug, ESD transients, or sensor cable faults. |
| Output Swing | Rail-to-rail into 1kΩ - delivers full dynamic range at VCC = 2.5V (e.g., 0.025V to 2.475V), preserving SNR in low-voltage systems. |
| GBW Product | Up to 4MHz at AV = +25V/V to +101V/V - provides usable bandwidth for 10kHz signals even at high closed-loop gain. |
| Input Offset Drift | 0.3µV/°C - ensures <1µV total drift over -40°C to +70°C, critical for DC-coupled current sensing. |
Pinout & Package
Package: 8-pin µMAX (3mm × 3mm, 0.65mm pitch), thermally enhanced, RoHS-compliant surface-mount package with exposed paddle.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (OUT) | Amplifier Output | Delivers rail-to-rail voltage with <0.2Ω closed-loop output impedance; drives 1kΩ load while maintaining DC accuracy. |
| 2 (INA−) | Inverting Input | Connected internally to RG resistor; accepts input voltages within ±15V of VEE, with fault protection up to ±17V. |
| 3 (INA+) | Noninverting Input | Connected internally to 5kΩ series resistor and clamp diodes; supports common-mode range from VEE −0.15V to VCC −1.2V. |
| 4 (VEE) | Negative Supply / Ground | Reference node for all internal circuitry; must be connected to system ground or negative rail (0V or −VS). |
| 5 (VCC) | Positive Supply | Accepts +2.5V to +5.5V; requires 0.1µF bypass capacitor placed adjacent to pin for noise immunity. |
| 6 (INB−) | Unused (N.C.) | No internal connection; must be left floating or tied to VEE per layout guidelines to avoid parasitic coupling. |
| 7 (INB+) | Unused (N.C.) | No internal connection; no routing or soldering required; PCB pad may be omitted. |
| 8 (OUTB) | Unused (N.C.) | No internal connection; electrically isolated; does not affect MAX4075ADEUA+T functionality. |
Key Features
| Feature | Design Value |
|---|---|
| Factory-trimmed RF/RG network | Enables 0.1% gain accuracy without external resistors - reduces BOM count, layout area, and thermal drift errors. |
| Rail-to-rail output driving 1kΩ | Maintains <25mV saturation voltage at both rails under load - maximizes ADC input range in 12-bit+ data acquisition systems. |
| ±17V input fault protection | Prevents damage or output phase reversal during ±17V overvoltage events - eliminates need for external TVS or series resistors in harsh environments. |
| Stable with 100pF capacitive load | Operates without oscillation or peaking when driving ADC input capacitance or long traces - removes need for output isolation resistors. |
| 54 standard gain options | Includes preferred noninverting gains (e.g., +1.25V/V, +5V/V, +25V/V) and inverting gains (e.g., −0.25V/V, −10V/V) - accelerates prototyping and design reuse. |
Applications
| Photodiode Preamp | Smart-Card Reader |
|---|---|
Use Scenario: Amplifying weak current from reverse-biased photodiodes in optical smoke detectors or pulse oximeters. IC Role / Device Role / Timing Role: Transimpedance amplifier with fixed +101V/V gain, converting 10nA–100nA photocurrent to 1–10mV output voltage. Use Value: 0.1% gain accuracy ensures consistent calibration across production units; ±17V fault protection guards against ESD discharge from user-handled optics. | Use Scenario: Conditioning analog signals from ISO 7816 smart-card contact interfaces during power-up and communication. IC Role / Device Role / Timing Role: Fixed-gain buffer for card voltage sensing and I/O line monitoring, operating from 3.3V supply with rail-to-rail swing. Use Value: 34µA quiescent current extends battery life in portable card readers; 100pF capacitive-load stability supports direct connection to card interface traces. |
| Low-Side Current Sense | Infrared Remote Receiver |
Use Scenario: Measuring motor or LED load current by amplifying mV-level shunt voltage in battery management systems. IC Role / Device Role / Timing Role: Precision noninverting amplifier with +25V/V gain, referenced to system ground, rejecting common-mode noise from switching regulators. Use Value: Input offset drift of 0.3µV/°C limits total error to <1µV over industrial temperature range - enabling ±0.5% current measurement accuracy. | Use Scenario: Amplifying modulated IR carrier signals (30–56kHz) from phototransistor receivers in consumer remote control units. IC Role / Device Role / Timing Role: High-GBW, low-noise preamplifier with +5V/V gain, providing clean signal to subsequent demodulation stage. Use Value: 4MHz GBW at AV = +5V/V supports faithful amplification of 56kHz carrier with minimal phase distortion; rail-to-rail output drives CMOS logic thresholds directly. |
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 |
|---|---|---|---|
| MAX4075AEUA+T | Same die, identical electrical specs, but top-mark "AE" indicates +5V/V noninverting gain (vs. "AD" = +25V/V for MAX4075ADEUA+T). | Optimized for mid-gain signal conditioning (e.g., 50mV shunt → 250mV ADC input); lower GBW (200kHz) than +25V/V version. | Select MAX4075AEUA+T when gain stability at moderate bandwidth suffices and tighter gain tolerance is prioritized over speed. |
| MAX44267ASA+T | Zero-drift, auto-zero op amp with 1.5µV max VOS and 0.005µV/°C drift - superior DC precision but higher 125µA ICC and no ±17V fault protection. | Suitable for ultra-low-offset applications (e.g., medical sensor front-ends) but requires external gain resistors and lacks integrated fault hardening. | Choose MAX44267ASA+T only when sub-µV offset and near-zero drift outweigh micropower operation and built-in fault resilience. |
Compared with MAX4075AEUA+T, the MAX4075ADEUA+T offers higher gain (+25V/V vs. +5V/V) and wider bandwidth (120kHz vs. 200kHz at respective gains), making it better suited for high-resolution current sensing. Against MAX44267ASA+T, it trades ultra-low offset for integrated gain, fault protection, and 3.7× lower supply current - favoring cost-sensitive, robust portable designs.
Availability
MAX4075ADEUA+T is available at Aetrix Electronics and suitable for portable battery-powered equipment, infrared receivers for remote controls, and low-side current-sense amplifiers requiring stable component supply across extended production lifecycles.
Supply support for MAX4075ADEUA+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, automotive, communications, and consumer applications.
The MAX4075ADEUA+T belongs to the GainAmp™ family of fixed-gain op amps, engineered to replace discrete op amp + resistor networks in space-constrained, low-power systems where gain accuracy, input robustness, and rail-to-rail performance are essential.
FAQ
What is the exact gain configuration of the MAX4075ADEUA+T?
The MAX4075ADEUA+T is configured for a noninverting gain of +25V/V, as indicated by the "AD" top mark per Maxim's Gain Selector Guide. This is achieved via laser-trimmed internal RF/RG resistors, delivering ±0.1% gain accuracy across temperature and supply voltage variations. The device does not support reconfiguration - gain is fixed at manufacture.
Does the MAX4075ADEUA+T require external gain-setting resistors?
No, the MAX4075ADEUA+T does not require external gain-setting resistors. It integrates factory-laser-trimmed RF and RG resistors on-die, eliminating external components, reducing PCB area, and removing resistor matching and thermal drift concerns. All gain-related functionality is self-contained within the MAX4075ADEUA+T package.
Can the MAX4075ADEUA+T operate from a 2.5V supply?
Yes, the MAX4075ADEUA+T is fully specified to operate from a +2.5V to +5.5V single supply. At VCC = 2.5V, it maintains rail-to-rail output swing (within 25mV of each rail into 1kΩ), 34µA supply current, and ±0.1% gain accuracy - making it ideal for coin-cell or single-Li-ion powered devices where low-voltage operation is mandatory.
What is the maximum capacitive load the MAX4075ADEUA+T can drive stably?
The MAX4075ADEUA+T is stable driving capacitive loads up to 100pF without external compensation or isolation resistors. This is verified per datasheet testing and applies across the full gain range and temperature (-40°C to +70°C). Loads exceeding 100pF require a series isolation resistor (e.g., 100Ω) at the output to maintain phase margin.
How does the ±17V input fault protection work on the MAX4075ADEUA+T?
The MAX4075ADEUA+T implements ±17V input fault protection using back-to-back SCR structures at IN+ and IN−, combined with diode clamps to VCC and VEE. A 5kΩ series resistor on IN+ and the internal RG on IN− limit fault current to <3.5mA, preventing damage during overvoltage events while avoiding output phase reversal - all without external components.
MAX4075ADEUA+T 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:
- Tape & Reel (TR)
- 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:
- 102 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
MAX4075ADEUA+T FAQ
1.How can I place an order for MAX4075ADEUA+T through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX4075ADEUA+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 MAX4075ADEUA+T reliable?
The price and inventory of MAX4075ADEUA+T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX4075ADEUA+T is usually 5 days.
3.What payment methods are accepted for MAX4075ADEUA+T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX4075ADEUA+T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX4075ADEUA+T?
MAX4075ADEUA+T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX4075ADEUA+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 MAX4075ADEUA+T?
For technical support, including MAX4075ADEUA+T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX4075ADEUA+T requirements.
6.How does Aetrix verify that MAX4075ADEUA+T is sourced from the original manufacturer or authorized distributors?
All MAX4075ADEUA+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 MAX4075ADEUA+T meets industry standards.
7.What is the process for return or replacement of MAX4075ADEUA+T?
All MAX4075ADEUA+T units undergo pre-shipment inspection (PSI). If there is an issue with MAX4075ADEUA+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 MAX4075ADEUA+T part is unused and in its original packaging.
Return procedure for MAX4075ADEUA+T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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