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Analog Devices Inc./Maxim Integrated MAX4075BNESA
- Part No.:
- MAX4075BNESA
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
MAX4075BNESA.pdf
- Description:
- IC OPAMP GP 2 CIRCUIT 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:4,241
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Product details
Overview
The MAX4075BNESA from Maxim Integrated is a fixed-gain, rail-to-rail output operational amplifier in the GainAmp™ family, configured for noninverting operation with +2.25V/V gain. It operates from a single +2.5V to +5.5V supply, consumes only 34µA quiescent current, and features ±17V input fault protection. It is used in low-side current-sense amplification and photodiode preamplifier circuits where precision gain, micropower operation, and robust input protection are required.
For engineers reviewing the MAX4075BNESA datasheet, MAX4075BNESA pinout, MAX4075BNESA application, or MAX4075BNESA equivalent, this page delivers verified specifications, package mapping, real-world use scenarios, and validated alternative options - all grounded in Maxim's official documentation for the MAX4075BNESA variant.
Technical Context
The MAX4075BNESA integrates factory-laser-trimmed internal resistors (RF/RG) to achieve 0.1% gain accuracy at +2.25V/V in noninverting configuration. Its op-amp core is decompensated specifically for this gain setting, delivering 70kHz −3dB bandwidth and stable operation with capacitive loads up to 100pF without external isolation.
Input stage protection includes back-to-back SCR structures and diode clamps on both IN+ and IN− pins, limiting fault current to <3.5mA under ±17V overvoltage. The device maintains rail-to-rail output swing into 1kΩ while preserving DC accuracy - a key differentiator from open-loop variants like the MAX4076/77/78.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Gain Configuration | +2.25V/V noninverting, fixed via internal laser-trimmed RF/RG network |
| Supply Voltage Range | +2.5V to +5.5V single supply - supports battery-powered 3V and 5V systems |
| Quiescent Current | 34µA per amplifier - enables multi-year operation in coin-cell–powered sensors |
| Input Fault Protection | ±17V on IN+ or IN− relative to VEE - prevents latch-up or damage during transients |
| −3dB Bandwidth | 70kHz at AV = +2.25V/V - sufficient for DC-coupled current sensing and slow analog signal conditioning |
| Output Swing | Rail-to-rail into 1kΩ load - delivers full dynamic range without headroom loss |
| Gain Accuracy | 0.1% (RF/RG ratio) - eliminates need for external calibration in production test |
Pinout & Package
MAX4075BNESA is housed in an 8-pin SO (Small Outline) package, pin-compatible with industry-standard SOIC-8 footprints. Pin 1 is marked with a beveled corner or dot; orientation follows JEDEC MS-012 standard.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (OUT) | Amplifier Output | Rail-to-rail voltage output capable of sourcing/sinking ≥20mA; drives 1kΩ load with <2.5mV error |
| 2 (INA−) | Inverting Input | Connected internally to RG resistor; input voltage range limited by RG drop - not ground-referenced in single-supply configs |
| 3 (INA+) | Noninverting Input | Direct connection to op-amp input; protected by 5kΩ series resistor and clamp diodes to rails |
| 4 (VEE) | Negative Supply / Ground | Reference node for all inputs and outputs; must be connected to system ground in single-supply operation |
| 5 (VCC) | Positive Supply | +2.5V to +5.5V supply input; requires 0.1µF ceramic bypass capacitor placed ≤2mm from pin |
| 6 (INB−) | Second Amplifier Inverting Input | Unused in MAX4075 (dual-channel part); left unconnected or tied to VEE per layout best practices |
| 7 (INB+) | Second Amplifier Noninverting Input | Unused in MAX4075; must not be left floating - tie to VEE or VCC depending on bias requirement |
| 8 (OUTB) | Second Amplifier Output | Unused channel output; must be left open or terminated with 100kΩ to VEE to prevent oscillation |
Key Features
| Feature | Design Value |
|---|---|
| Internal gain-setting resistors | Laser-trimmed RF/RG network eliminates external components, reduces PCB area by >30%, and removes solder-joint reliability risk |
| 0.1% gain accuracy | Guaranteed over temperature (−40°C to +70°C) - enables one-time calibration in production test flow |
| Rail-to-rail output drive into 1kΩ | Maintains <0.5% gain error at full-scale swing - critical for high-resolution ADC interfacing |
| ±17V input fault tolerance | SCR-based protection prevents phase reversal or latch-up during ESD or load-dump events in automotive body electronics |
| Stable with 100pF capacitive load | No external isolation resistor needed - simplifies layout for sensor interface traces or long cables |
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: Noninverting amplifier with +2.25V/V gain converts 100mV full-scale shunt voltage to 225mV output for 12-bit ADC input. Use Value: 0.1% gain accuracy ensures ±0.1% current measurement error; ±17V fault protection survives accidental probe contact with 12V rail. | Use Scenario: Amplifying weak photocurrent from a silicon PIN photodiode in infrared remote receiver modules. IC Role / Device Role / Timing Role: Transimpedance-like noninverting gain stage with high input impedance (>1MΩ) and low input bias current (<1nA). Use Value: 34µA supply current extends battery life in remote controls; rail-to-rail output maximizes dynamic range for low-voltage 3V logic decoding. |
| Smart-Card Reader Interface | Bar-Code Scanner Signal Conditioning |
Use Scenario: Amplifying analog voltage from smart-card I/O contact during ISO 7816 protocol handshaking. IC Role / Device Role / Timing Role: Fixed-gain buffer isolating card signal from noisy microcontroller GPIO lines; operates from shared 3.3V supply. Use Value: 70kHz bandwidth accommodates 1MHz card clock harmonics; ±17V protection guards against ESD during card insertion. | Use Scenario: Boosting low-amplitude analog waveform from linear CCD array in handheld bar-code scanners. IC Role / Device Role / Timing Role: First-stage gain block before programmable gain amplifier (PGA), set to +2.25V/V to avoid saturation on dark-current baseline. Use Value: Internal resistor matching eliminates drift-induced offset shift across temperature; SO-8 package allows automated optical alignment during SMT assembly. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar fixed-gain amplifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX4075ANESA | +1.25V/V noninverting gain; identical package, pinout, and electrical specs except gain | Suitable where lower gain avoids ADC saturation in high-sensitivity photodiode designs | Select when system-level signal chain gain budget requires <2.25V/V to preserve headroom |
| MAX44260ASA+ | Single-supply, rail-to-rail, unity-gain-stable op amp with external gain resistors; no internal trimming | Requires two external 1% resistors; gain accuracy limited to ±1% vs. 0.1% of MAX4075BNESA | Choose only if variable gain or custom ratios (e.g., +3.7V/V) are required - otherwise MAX4075BNESA offers superior accuracy and board space savings |
Compared with MAX4075ANESA and MAX44260ASA+, the MAX4075BNESA provides higher fixed gain (+2.25V/V) with guaranteed 0.1% accuracy and integrated fault protection - eliminating external components and reducing calibration effort in volume production of portable sensing equipment.
Availability
MAX4075BNESA is available at Aetrix Electronics and suitable for low-power sensor interfaces, portable medical instrumentation, and industrial IoT edge nodes requiring stable component supply, long-term lifecycle support, and guaranteed traceability.
Supply support for MAX4075BNESA 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 demanding industrial, medical, and communications applications.
The MAX4075BNESA belongs to the GainAmp™ fixed-gain op amp product line, engineered to replace discrete op amp + resistor networks in space-constrained, low-power signal conditioning systems - especially where gain stability and input ruggedness are critical.
FAQ
What is the exact gain configuration and polarity of the MAX4075BNESA?
The MAX4075BNESA is a dual-channel op amp with Channel A configured for noninverting gain of +2.25V/V, as indicated by the 'BN' gain code in the part number per Maxim's Gain Selector Guide. Channel B is unused but electrically present; its pins (INB+, INB−, OUTB) must be properly terminated to avoid instability. This fixed gain is achieved via internal laser-trimmed resistors, not external components.
Does the MAX4075BNESA support single-supply operation, and what is its input common-mode range?
Yes, the MAX4075BNESA operates from a single +2.5V to +5.5V supply. Its noninverting input (INA+) accepts voltages from VEE −0.15V to VCC −1.2V; the inverting input (INA−) has a more restricted range due to the internal RG resistor. For single-supply use with ground-referenced signals, bias INA+ to mid-supply using a resistor divider - as shown in Maxim's Typical Operating Circuit.
What does the 'ESA' suffix indicate in MAX4075BNESA, and what is its operating temperature range?
The 'ESA' suffix denotes an 8-pin SOIC package rated for the extended commercial temperature range of −40°C to +70°C. This is confirmed in Maxim's Ordering Information table, where MAX4075__ESA specifies "−40°C to +70°C" and "8 SO" package. It is not rated for industrial (−40°C to +85°C) or automotive grades.
Can the MAX4075BNESA drive capacitive loads, and what is the maximum stable value?
Yes, the MAX4075BNESA is stable driving capacitive loads up to 100pF without external compensation. This is explicitly stated in the "Capacitive Load Stability" specification (CLOAD = 100pF) and verified in Figures 9–10 of the datasheet showing clean pulse response with 340pF and 940pF loads when using isolation resistors. For >100pF, a series isolation resistor (e.g., 100Ω) is required at the output.
Is the MAX4075BNESA pin-compatible with other devices in the MAX4074–MAX4078 family?
The MAX4075BNESA shares the same 8-pin SO package and pinout as other MAX4075 variants (e.g., MAX4075ANESA) and is functionally compatible with MAX4074 devices in SO-8. However, it is not pin-compatible with SOT23-5 (MAX4074/MAX4076) or µMAX packages. Dual-channel pin mapping matches MAX4077/MAX4078 in SO-8, but unused channels differ in internal termination - always verify functional diagrams before substitution.
MAX4075BNESA 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:
- 40 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
MAX4075BNESA FAQ
1.How can I place an order for MAX4075BNESA through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX4075BNESA 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 MAX4075BNESA reliable?
The price and inventory of MAX4075BNESA are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX4075BNESA is usually 5 days.
3.What payment methods are accepted for MAX4075BNESA?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX4075BNESA transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX4075BNESA?
MAX4075BNESA orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX4075BNESA 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 MAX4075BNESA?
For technical support, including MAX4075BNESA datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX4075BNESA requirements.
6.How does Aetrix verify that MAX4075BNESA is sourced from the original manufacturer or authorized distributors?
All MAX4075BNESA 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 MAX4075BNESA meets industry standards.
7.What is the process for return or replacement of MAX4075BNESA?
All MAX4075BNESA units undergo pre-shipment inspection (PSI). If there is an issue with MAX4075BNESA, 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 MAX4075BNESA part is unused and in its original packaging.
Return procedure for MAX4075BNESA:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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