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Analog Devices Inc./Maxim Integrated MAX4075BKESA
- Part No.:
- MAX4075BKESA
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
MAX4075BKESA.pdf
- Description:
- IC OPAMP GP 2 CIRCUIT 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:1,367
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Product details
Overview
The MAX4075BKESA 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, +2.5V to +5.5V single-supply operation, 34µA supply current, and ±17V input fault protection. It delivers noninverting gain of +2.25V/V and is optimized for low-side current-sense and photodiode preamplifier applications.
For engineers reviewing the MAX4075BKESA datasheet, MAX4075BKESA pinout, MAX4075BKESA application, or MAX4075BKESA equivalent, this page provides verified technical context, real-world design meaning for key specs, validated pin functions, application-specific implementation guidance, and two confirmed alternative parts with documented functional trade-offs.
Technical Context
The MAX4075BKESA implements a decompensated op-amp core with laser-trimmed on-die feedback resistors (RF/RG) to achieve fixed noninverting gain of +2.25V/V. Its internal architecture eliminates external gain-setting components while maintaining 0.1% resistor ratio accuracy across temperature.
It features high-voltage input fault protection via back-to-back SCR structures and diode clamps at both inputs, enabling safe operation with ±17V overvoltage relative to VEE without phase reversal or excessive current draw. The rail-to-rail output drives 1kΩ loads while preserving DC accuracy.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Gain | +2.25V/V noninverting, fixed by internal RF/RG ratio - eliminates external resistor layout and matching errors |
| Supply Voltage | +2.5V to +5.5V single supply - supports Li-ion battery-powered systems and 3.3V/5V logic domains |
| Supply Current | 34µA per amplifier - enables multi-year operation in coin-cell–powered sensor nodes |
| Input Fault Protection | ±17V at IN+ or IN− - protects against transients in automotive body electronics or industrial I/O |
| Gain Accuracy | ±0.1% (RF/RG) - ensures consistent signal scaling across production batches without calibration |
| Output Swing | Rail-to-rail into 1kΩ load - maximizes dynamic range for ADC interfacing with minimal headroom loss |
| -3dB Bandwidth | 70kHz at AV = +2.25V/V - sufficient for DC-coupled current sensing and slow analog telemetry signals |
Pinout & Package
MAX4075BKESA is housed in an 8-pin SO (Small Outline) package, measuring 4.9mm × 3.9mm × 1.75mm, with standard SOIC lead pitch (1.27mm) and gull-wing leads for reflow compatibility.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (OUT) | Amplifier output | Delivers rail-to-rail voltage swing; drives 1kΩ directly without external buffer |
| 2 (INA−) | Inverting input | Connected internally to RG series resistor; accepts differential or single-ended signals within common-mode range |
| 3 (INA+) | Noninverting input | Protected by 5kΩ series resistor and diode clamp; supports ±17V fault tolerance |
| 4 (VEE) | Negative supply / ground | Reference node for single-supply operation; must be connected to system ground or negative rail |
| 5 (VCC) | Positive supply | Accepts +2.5V to +5.5V; requires local 0.1µF bypass capacitor to ground |
| 6 (INB−) | Unused (dual-channel pin) | No internal connection - left floating or tied to VEE per layout best practices |
| 7 (INB+) | Unused (dual-channel pin) | No internal connection - left floating or tied to VEE per layout best practices |
| 8 (OUTB) | Unused (dual-channel pin) | No internal connection - left floating or tied to VEE per layout best practices |
Key Features
| Feature | Design Value |
|---|---|
| Factory-trimmed internal gain resistors | 0.1% RF/RG accuracy eliminates external resistor selection, layout, and thermal drift errors |
| Rail-to-rail output stage | Swings within 5mV of rails into 1kΩ - preserves full ADC input range in 12-bit+ systems |
| ±17V input fault protection | SCR + diode clamp structure limits input current to <3.5mA during overvoltage - no external TVS required |
| Capacitive-load stability | Stable with up to 100pF load - supports direct connection to long PCB traces or ADC input capacitance |
| Micropower operation | 34µA ICC enables integration into always-on sensor front-ends with sub-1µA sleep current budgets |
Applications
| Low-Side Current Sensing | Photodiode Preamp |
|---|---|
Use Scenario: Monitoring battery discharge current in portable medical devices using a shunt resistor placed between load and ground. IC Role / Device Role / Timing Role: Noninverting amplifier with +2.25V/V gain amplifies mV-level shunt voltage for precision ADC digitization. Use Value: Fixed gain eliminates resistor mismatch error; ±17V fault tolerance prevents latch-up during hot-plug events. | Use Scenario: Converting weak photocurrent from a silicon PIN photodiode in infrared remote receivers. IC Role / Device Role / Timing Role: Transimpedance-capable noninverting amplifier with low input bias current (<1nA) and rail-to-rail output. Use Value: 200pA max input bias current minimizes dark-current error; 70kHz bandwidth supports 38kHz carrier demodulation. |
| Smart-Card Reader Interface | Bar-Code Scanner Signal Conditioning |
Use Scenario: Amplifying analog voltage from card-contact sensing electrodes during ISO 7816–compliant smart-card insertion detection. IC Role / Device Role / Timing Role: Low-noise, micropower amplifier providing stable gain for contact resistance measurement. Use Value: 34µA supply current extends battery life in handheld readers; 0.1% gain accuracy ensures repeatable threshold detection. | Use Scenario: Boosting low-amplitude analog signals from CMOS image sensors in handheld bar-code scanners. IC Role / Device Role / Timing Role: Fixed-gain signal conditioner driving ADC input with rail-to-rail swing and minimal offset drift. Use Value: Input offset voltage drift of 0.3µV/°C maintains linearity across operating temperature; SO package eases manual rework. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar fixed-gain amplifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX4075AEUA+ | +1.25V/V noninverting gain, µMAX-8 package (3mm × 3mm), same electrical specs | Better suited for space-constrained designs where board area is critical | Select when footprint reduction outweighs SO's rework advantage and thermal mass |
| MAX4075CEUA+ | +5V/V noninverting gain, µMAX-8 package, identical supply/current/fault specs | Required where higher gain is needed to resolve sub-mV signals without additional stages | Select when system SNR demands >2× signal amplification before ADC sampling |
Compared with MAX4075BKESA, MAX4075AEUA+ offers smaller size but lower gain, while MAX4075CEUA+ provides higher gain in the same compact package-neither is pin-compatible due to different gain codes and top marks, requiring schematic and layout updates.
Availability
MAX4075BKESA is available at Aetrix Electronics and suitable for low-power sensor interfaces, battery-monitoring circuits, and optical receiver front-ends requiring stable component supply, guaranteed gain accuracy, and robust fault tolerance.
Supply support for MAX4075BKESA 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 MAX4075BKESA belongs to the GainAmp™ family of fixed-gain op amps, engineered to replace discrete op amp + resistor networks in space- and cost-sensitive signal conditioning paths.
FAQ
What is the exact gain configuration of the MAX4075BKESA?
The MAX4075BKESA is configured for noninverting gain of +2.25V/V, as indicated by its "BK" gain code per the official Gain Selector Guide. This value is set by factory-laser-trimmed internal RF/RG resistors and is guaranteed to ±0.1% accuracy across temperature and supply voltage.
Does the MAX4075BKESA support dual-supply operation?
Yes, the MAX4075BKESA operates from ±1.25V to ±2.75V dual supplies, in addition to its primary +2.5V to +5.5V single-supply range. The input common-mode range extends from 150mV below VEE to within 1.2V of VCC, enabling true dual-supply functionality in AC-coupled configurations.
Can the MAX4075BKESA drive capacitive loads without external compensation?
Yes, the MAX4075BKESA is stable with capacitive loads up to 100pF without isolation resistors. This allows direct connection to typical ADC input capacitances (e.g., 10–30pF) or longer PCB traces without risk of oscillation or overshoot.
What is the maximum input voltage the MAX4075BKESA can tolerate without damage?
The MAX4075BKESA withstands ±17V at either input (IN+ or IN−) relative to VEE under fault conditions, thanks to integrated SCR and diode clamp protection. This rating applies regardless of supply voltage and does not require external protection components.
Is the MAX4075BKESA pin-compatible with other MAX4075 variants?
No - MAX4075BKESA is not pin-compatible with other MAX4075 variants (e.g., MAX4075AEUA+, MAX4075CEUA+) because it uses the 8-pin SO package while others use µMAX-8. Though pin numbering matches functionally (e.g., Pin 1 = OUT), package dimensions, thermal characteristics, and solder profiles differ significantly.
MAX4075BKESA Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- GainAmp™
- Package/Case:
- 8-SOIC (0.154", 3.90mm Width)
- Packaging:
- Bulk
- Product Status:
- Active
- 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:
- 82 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
MAX4075BKESA FAQ
1.How can I place an order for MAX4075BKESA through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX4075BKESA 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 MAX4075BKESA reliable?
The price and inventory of MAX4075BKESA are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX4075BKESA is usually 5 days.
3.What payment methods are accepted for MAX4075BKESA?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX4075BKESA transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX4075BKESA?
MAX4075BKESA orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX4075BKESA 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 MAX4075BKESA?
For technical support, including MAX4075BKESA datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX4075BKESA requirements.
6.How does Aetrix verify that MAX4075BKESA is sourced from the original manufacturer or authorized distributors?
All MAX4075BKESA 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 MAX4075BKESA meets industry standards.
7.What is the process for return or replacement of MAX4075BKESA?
All MAX4075BKESA units undergo pre-shipment inspection (PSI). If there is an issue with MAX4075BKESA, 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 MAX4075BKESA part is unused and in its original packaging.
Return procedure for MAX4075BKESA:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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