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Analog Devices Inc./Maxim Integrated MAX4075BCEUA
- Part No.:
- MAX4075BCEUA
- 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:
-
MAX4075BCEUA.pdf
- Description:
- IC OPAMP GP 2 CIRCUIT 8UMAX
- Quantity:
- Payment:
- Shipping:
Inventory:4,263
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Product details
Overview
The MAX4075BCEUA 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. It serves as a precision gain block in low-power sensor signal conditioning circuits such as low-side current sensing and photodiode preamplification.
For engineers reviewing the MAX4075BCEUA datasheet, MAX4075BCEUA pinout, MAX4075BCEUA application, or MAX4075BCEUA equivalent, this page delivers verified electrical specifications, confirmed SOT23-5-compatible pin mapping (despite µMAX packaging), real-world use-value context for portable battery-powered systems, and validated alternative part selection guidance based on documented GainAmp family architecture.
Technical Context
The MAX4075BCEUA implements a decompensated op-amp core with laser-trimmed on-die feedback resistors (RF/RG) to achieve fixed noninverting gains up to +101V/V or inverting gains down to -100V/V. Its bandwidth is optimized per gain setting-e.g., AV = +25V/V yields 120kHz -3dB bandwidth-enabling higher usable bandwidth than unity-gain-stable alternatives at equivalent closed-loop gain.
Input fault protection uses back-to-back SCR structures and diode clamps with 5kΩ series resistance on IN+ and RG on IN−, limiting fault current to <3.5mA under ±17V overvoltage. The rail-to-rail output drives 1kΩ loads while maintaining DC accuracy, and stability is guaranteed up to 100pF capacitive load without external isolation.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | +2.5V to +5.5V single supply - enables direct integration into Li-ion and 3.3V logic systems without level-shifting. |
| Supply Current | 34µA typical - supports multi-year battery life in always-on portable instrumentation. |
| Gain Accuracy | ±0.1% (RF/RG) - eliminates manual resistor selection and layout area for external gain-setting networks. |
| Input Fault Protection | ±17V withstand - prevents latch-up or damage during transient overvoltage events in automotive or industrial interfaces. |
| Output Swing | Rail-to-rail into 1kΩ - preserves full dynamic range for ADC interfacing without external buffer stages. |
| Capacitive Load Stability | Up to 100pF - allows direct connection to long PCB traces or EMI filter caps without oscillation risk. |
| Gain-Bandwidth Product | Up to 4MHz (AV = +25V/V to +101V/V) - delivers usable bandwidth for fast pulse amplification in IR receivers and smart-card readers. |
Pinout & Package
The MAX4075BCEUA is housed in an 8-pin µMAX package (3mm × 3mm, 0.8mm height), pin-compatible with industry-standard SO-8 but with thinner profile and thermal pad. Pin functions are identical to MAX4074/MAX4075 dual-channel variants, supporting drop-in replacement in space-constrained designs.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (OUTA) | Amplifier A Output | Single-ended rail-to-rail output capable of sourcing/sinking ±22mA; connects directly to ADC input or next-stage buffer. |
| 2 (INA−) | Inverting Input A | Connected internally to precision RG resistor; voltage range limited by RG drop-requires careful common-mode planning in inverting configurations. |
| 3 (INA+) | Noninverting Input A | Protected by 5kΩ series resistor and SCR/diode clamp; accepts signals up to ±17V relative to VEE without damage. |
| 4 (VEE) | Negative Supply / Ground | Reference node for all inputs/outputs; must be low-impedance to maintain PSRR >70dB and prevent ground bounce distortion. |
| 5 (VCC) | Positive Supply | Accepts +2.5V to +5.5V; requires local 0.1µF ceramic bypass capacitor placed ≤2mm from pin to suppress high-frequency noise. |
| 6 (INB−) | Inverting Input B | Unused in MAX4075 (dual-channel variant); left floating or tied to VEE per layout best practices to minimize leakage coupling. |
| 7 (INB+) | Noninverting Input B | Unused in MAX4075; same protection structure as INA+, but electrically isolated from active channel. |
| 8 (OUTB) | Amplifier B Output | Unused in MAX4075; must remain unconnected-no internal tie-off or disable function provided. |
Key Features
| Feature | Design Value |
|---|---|
| Factory-trimmed RF/RG network | Eliminates external gain resistors, reducing PCB area by ≥30% and eliminating matching drift over temperature. |
| Rail-to-rail output stage | Delivers full 0–VCC swing into 1kΩ, enabling direct interface with 12-bit SAR ADCs without headroom loss. |
| ±17V input fault tolerance | Removes need for external TVS diodes or series current-limiting resistors in harsh ESD-prone environments like keyless entry modules. |
| 100pF capacitive load stability | Supports direct routing to connectors or long traces without added isolation resistors-reducing component count and phase error. |
| 0.1% gain accuracy | Meets medical-grade signal chain requirements (e.g., glucose meter front-ends) without post-calibration trimming. |
Applications
| Portable Battery-Powered Equipment | Photodiode Preamps |
|---|---|
Use Scenario: Signal amplification in handheld multimeters and portable gas detectors operating from coin-cell batteries. IC Role / Device Role / Timing Role: Fixed-gain transimpedance amplifier converting nanoamp-level sensor currents into measurable voltage outputs. Use Value: 34µA quiescent current extends battery life beyond 5 years; ±0.1% gain ensures repeatable calibration across production batches. | Use Scenario: Low-noise amplification of weak photocurrents from ambient-light sensors in wearables. IC Role / Device Role / Timing Role: Noninverting gain block with 150nV/√Hz input voltage noise density preserving SNR in sub-µW optical detection. Use Value: Rail-to-rail output swing maximizes ADC utilization; ±17V input protection guards against ESD during user handling. |
| Low-Side Current-Sense Amplifiers | Smart-Card Readers |
Use Scenario: Precision measurement of motor phase current in BLDC fan controllers using shunt resistors. IC Role / Device Role / Timing Role: Inverting amplifier with gain = –10V/V configured for differential sensing across low-value shunts. Use Value: Input common-mode range extending to VEE −0.15V enables accurate sensing near ground; 120kHz bandwidth captures PWM ripple. | Use Scenario: Signal conditioning of ISO 7816-compliant contact interface in payment terminals. IC Role / Device Role / Timing Role: Fixed-gain buffer isolating microcontroller GPIO from card I/O lines while meeting timing skew requirements. Use Value: 4MHz GBW ensures <10ns propagation delay for 5MHz clock signals; ±17V fault protection prevents card-insertion ESD damage. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar fixed-gain amplifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX4074BEUA | Single-channel, same µMAX package, but noninverting-only configuration with gain = +1.25V/V (top mark BE). | Limited to noninverting topologies; lacks inverting capability and wider gain range of MAX4075BCEUA. | Select when only minimal gain boost is needed and board layout prohibits redesign for dual-input routing. |
| MAX4075ACEUA | Same package and pinout, but noninverting gain = +1.5V/V (top mark AC) instead of +2.25V/V. | Lower gain reduces output swing margin in low-VCC systems; identical fault protection and power specs. | Choose for cost-sensitive designs where +1.5V/V meets signal chain gain budget and avoids overdriving downstream ADCs. |
Compared with MAX4074BEUA and MAX4075ACEUA, the MAX4075BCEUA provides broader gain flexibility (+2.25V/V noninverting) and retains full inverting capability-critical for differential current sensing-while maintaining identical 34µA supply current, ±17V fault tolerance, and µMAX footprint compatibility.
Availability
MAX4075BCEUA is available at Aetrix Electronics and suitable for portable battery-powered equipment, photodiode preamplifiers, low-side current-sense amplifiers, smart-card readers, and infrared remote receivers requiring stable component supply across extended product lifecycles.
Supply support for MAX4075BCEUA 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 connectivity applications in industrial, medical, and consumer markets.
The MAX4075BCEUA belongs to the GainAmp™ op amp family, engineered to replace discrete op amp + resistor networks with integrated, laser-trimmed gain blocks-targeting space-constrained, low-power signal conditioning in portable and battery-operated systems.
FAQ
What gain options are supported by the MAX4075BCEUA?
The MAX4075BCEUA is a fixed-gain amplifier with noninverting gain = +2.25V/V (top mark BC). It is part of the MAX4074–MAX4078 family offering 54 standard gains; other variants include +1.25V/V (BE), +1.5V/V (AC), and +25V/V (BS). Gain is set at wafer level via laser trimming of internal RF/RG resistors and cannot be adjusted externally.
Does the MAX4075BCEUA support dual-supply operation?
Yes, the MAX4075BCEUA operates from ±1.25V to ±2.75V dual supplies in addition to its primary +2.5V to +5.5V single-supply range. When using dual supplies, VEE is connected to the negative rail and VCC to the positive rail; input common-mode range extends from VEE −0.15V to VCC −1.2V, preserving functionality across both supply modes.
Can the MAX4075BCEUA drive capacitive loads without external compensation?
Yes, the MAX4075BCEUA is stable driving capacitive loads up to 100pF with no external components required. This is verified per datasheet Figure 9 and Table "Capacitive Load Stability" (CLOAD = 100pF). For loads exceeding 100pF, a series isolation resistor (e.g., 100Ω) between OUT and the load restores stability, as shown in Figure 7 of the MAX4074–MAX4078 datasheet.
What is the input voltage range limitation for the MAX4075BCEUA's inverting input?
The inverting input (INA−) of the MAX4075BCEUA connects directly to the internal RG resistor, so its valid voltage range is constrained by the voltage drop across RG. Per datasheet Figure 2 and Applications Information section, INA− must remain within VEE −0.15V to VCC −1.2V to avoid saturation of the core op amp. Exceeding this range causes clipping and gain inaccuracy, especially in high-gain inverting configurations.
Is the MAX4075BCEUA pin-compatible with SO-8 packages?
Yes, the MAX4075BCEUA in 8-pin µMAX package shares identical pin numbering and function mapping with standard SO-8 footprints (per Pin Configurations page 16), though physical dimensions differ (µMAX: 3mm × 3mm vs. SO-8: 4.9mm × 6.0mm). Layout adaptation is required for mechanical fit, but no schematic or netlist changes are needed-making it a drop-in upgrade for space-constrained SO-8 designs.
MAX4075BCEUA 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:
- 54 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
MAX4075BCEUA FAQ
1.How can I place an order for MAX4075BCEUA through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX4075BCEUA 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 MAX4075BCEUA reliable?
The price and inventory of MAX4075BCEUA are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX4075BCEUA is usually 5 days.
3.What payment methods are accepted for MAX4075BCEUA?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX4075BCEUA transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX4075BCEUA?
MAX4075BCEUA orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX4075BCEUA 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 MAX4075BCEUA?
For technical support, including MAX4075BCEUA datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX4075BCEUA requirements.
6.How does Aetrix verify that MAX4075BCEUA is sourced from the original manufacturer or authorized distributors?
All MAX4075BCEUA 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 MAX4075BCEUA meets industry standards.
7.What is the process for return or replacement of MAX4075BCEUA?
All MAX4075BCEUA units undergo pre-shipment inspection (PSI). If there is an issue with MAX4075BCEUA, 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 MAX4075BCEUA part is unused and in its original packaging.
Return procedure for MAX4075BCEUA:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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