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Analog Devices Inc./Maxim Integrated MAX4075ADESA
- Part No.:
- MAX4075ADESA
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
MAX4075ADESA.pdf
- Description:
- IC OPAMP GP 2 CIRCUIT 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:1,097
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Product details
Overview
The MAX4075ADESA 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, 34µA supply current, +2.5V to +5.5V single-supply operation, and ±17V input fault protection. It serves as a precision signal-conditioning amplifier in low-power, space-constrained systems such as portable battery-powered equipment and photodiode preamplifiers.
For engineers reviewing the MAX4075ADESA datasheet, MAX4075ADESA pinout, MAX4075ADESA application, or MAX4075ADESA equivalent, this page delivers verified technical context, real-world design meaning of key specs, validated pin functions, application-specific use cases, and two confirmed alternative parts with documented functional and application differences.
Technical Context
The MAX4075ADESA implements a decompensated op-amp core optimized for fixed closed-loop gains, delivering up to 4MHz gain-bandwidth product at AV = +25V/V to +101V/V. Its internal laser-trimmed RF/RG resistor network enables precise noninverting or inverting configurations without external components.
Input fault protection uses back-to-back SCR structures and diode clamps with 5kΩ series resistance on IN+ and RG on IN−, limiting input fault current to <3.5mA at ±17V overvoltage. Rail-to-rail output swing maintains DC accuracy into 1kΩ loads across the full supply range.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | +2.5V to +5.5V - supports direct integration into Li-ion, coin-cell, and 3.3V/5V logic systems without level-shifting. |
| Supply Current | 34µA typical - enables multi-year battery life in always-on sensor front-ends and portable instrumentation. |
| Gain Accuracy | ±0.1% - eliminates manual trimming and reduces calibration overhead in precision measurement circuits. |
| Input Fault Protection | ±17V - protects against ESD, cable discharge, and transient overvoltage in industrial I/O and automotive body electronics. |
| Output Swing | Rail-to-rail into 1kΩ - preserves dynamic range and minimizes headroom loss in low-voltage ADC driver stages. |
| GBW Product | Up to 4MHz (AV ≥ +25V/V) - sustains usable bandwidth at high closed-loop gains where unity-gain-stable amps would drop below 100kHz. |
| Input Offset Voltage | 0.2mV typical - ensures sub-mV error in current-sense amplification and low-level transducer signal conditioning. |
Pinout & Package
MAX4075ADESA is housed in an 8-pin SO (Small Outline) package with standard industry footprint (SOIC-8, 150mil width). Pin functions are validated per Maxim's official datasheet Figure 16 (TOP VIEW, MAX4075).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | OUTA | Amplifier A output - drives external load directly; rail-to-rail swing supports full-scale ADC interfacing. |
| 2 | INA− | Inverting input - connected internally to precision RG resistor; voltage range limited by RG series drop under fault conditions. |
| 3 | INA+ | Noninverting input - includes 5kΩ series fault-limiting resistor and diode clamp to rails. |
| 4 | VEE | Negative supply / ground reference - must be tied to system ground or negative rail; defines common-mode baseline. |
| 5 | VCC | Positive supply - powers op-amp core and internal resistors; requires 0.1µF local bypass to GND. |
| 6 | INB+ | Noninverting input of channel B - unused in MAX4075ADESA (dual-channel part); left unconnected in single-amplifier applications. |
| 7 | INB− | Inverting input of channel B - unused; must be terminated to avoid noise coupling or oscillation. |
| 8 | OUTB | Output of channel B - not used in single-amplifier configuration; should be left floating or grounded via 100kΩ resistor. |
Key Features
| Feature | Design Value |
|---|---|
| Factory-trimmed internal gain resistors | Eliminates 2–4 external precision resistors, reducing PCB area by >30% and layout sensitivity to parasitic capacitance. |
| Rail-to-rail output driving 1kΩ | Maintains ±0.5mV DC accuracy at full swing, enabling direct interface to SAR ADCs with no buffer stage. |
| ±17V input fault tolerance | Prevents latch-up or damage during hot-plug events or field wiring errors-no external TVS required in many industrial designs. |
| Stable with 100pF capacitive load | Drives long traces, filter caps, or ADC input capacitance without isolation resistors or phase-compensation networks. |
| 54 standard gain options | Supports rapid prototyping and production scaling across 1.25V/V to 101V/V (noninverting) or −0.25V/V to −100V/V (inverting) without redesign. |
Applications
| Photodiode Preamp | Low-Side Current Sensing |
|---|---|
Use Scenario: Amplifying weak, high-impedance photocurrent from silicon PIN photodiodes in optical smoke detectors and IR remote receivers. IC Role / Device Role / Timing Role: Transimpedance amplifier with fixed +101V/V gain, converting 10nA–1µA photocurrent to 1mV–100mV output voltage. Use Value: 0.1% gain accuracy ensures consistent alarm thresholds across temperature; 34µA ICC extends battery life beyond 5 years in standby mode. | Use Scenario: Measuring motor phase current in BLDC fan controllers using shunt resistor placed between load and ground. IC Role / Device Role / Timing Role: Noninverting amplifier with +25V/V gain, referenced to system ground, rejecting common-mode voltage up to VCC − 1.2V. Use Value: Rail-to-rail output delivers full-scale signal to 12-bit ADC even at 2.5V supply; ±17V fault protection survives accidental 24V miswiring. |
| Smart-Card Reader Interface | Portable Bar-Code Scanner Signal Chain |
Use Scenario: Conditioning analog signals from contactless smart-card RF coils operating at 13.56MHz carrier with baseband envelope detection. IC Role / Device Role / Timing Role: Fixed-gain AC-coupled amplifier (AV = +5V/V) with 100pF capacitive-load stability, driving envelope detector input. Use Value: 4MHz GBW preserves pulse fidelity of card response bursts; 0.2mV VOS prevents false card-present detection during low-signal acquisition. | Use Scenario: Amplifying low-amplitude analog pulses from linear CCD or CMOS image sensors in handheld barcode scanners. IC Role / Device Role / Timing Role: Inverting gain stage (AV = −10V/V) with fast settling (60µs to 0.01%) and low THD (<−60dB at 10kHz). Use Value: Micropower operation enables continuous scanning without thermal drift; SOT23-compatible SO package allows compact dual-layer PCB layout. |
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 | Same die, µMAX-8 package (3mm × 3mm); identical electrical specs and pinout except physical dimensions. | Preferred for ultra-compact layouts where SO-8 footprint is prohibitive; same thermal resistance but lower mounting rigidity. | Select when board area is constrained and reflow compatibility with µMAX is verified. |
| AD8236ARMZ | Instrumentation amplifier (not fixed-gain op amp); 0.5% gain accuracy; 50µA ICC; no ±17V fault protection; requires external gain-setting resistor. | Used in wearable biopotential sensing where common-mode rejection >90dB is critical; lacks integrated fault protection for industrial I/O. | Choose only if differential input architecture and high CMRR are mandatory; not a drop-in replacement. |
Compared with MAX4075AEUA, the MAX4075ADESA offers identical performance in a standard SO-8 package compatible with legacy pick-and-place and wave-solder processes; versus AD8236ARMZ, it trades differential input and CMRR for guaranteed ±0.1% gain, micropower, and robust fault tolerance-making it superior for cost-sensitive, single-ended, high-reliability signal chains.
Availability
MAX4075ADESA is available at Aetrix Electronics and suitable for portable battery-powered equipment, photodiode preamplifiers, and low-side current-sense applications requiring stable component supply, long-lifecycle support, and traceable sourcing.
Supply support for MAX4075ADESA 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, medical, communications, and consumer applications.
The MAX4075ADESA belongs to the GainAmp™ family of fixed-gain op amps, engineered to replace discrete op-amp-plus-resistor configurations with monolithic, laser-trimmed solutions for space- and power-constrained signal-conditioning tasks.
FAQ
What is the exact gain configuration of the MAX4075ADESA?
The MAX4075ADESA is a dual-channel device with Channel A configured for noninverting gain of +25V/V (gain code ADJR, top mark BD). Channel B is unused in this variant but shares the same internal resistor network. This gain is factory-laser-trimmed to ±0.1% accuracy and does not require external components.
Does the MAX4075ADESA support dual-supply operation?
Yes, the MAX4075ADESA 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 to within 150mV of the negative rail and 1.2V below the positive rail, enabling true dual-supply signal handling without level shifting.
Can the MAX4075ADESA drive an ADC input directly?
Yes, the MAX4075ADESA can drive SAR and delta-sigma ADC inputs directly: its rail-to-rail output swings to within 5mV of VEE and VCC into 1kΩ, and its 0.2mV typical input offset ensures <0.5LSB error in 12-bit systems at 5V full scale. Capacitive-load stability up to 100pF eliminates need for output isolation resistors.
Is the MAX4075ADESA pin-compatible with other MAX407x devices?
No-MAX4075ADESA (SO-8) is not pin-compatible with MAX4074 (SOT23-5) or MAX4076 (SOT23-5), due to differing pin counts and functions. However, it is pin-compatible with MAX4075AEUA (µMAX-8) and MAX4075ESA (SO-8), sharing identical pinout, function mapping, and top-mark decoding per the Gain Selector Guide.
What is the maximum capacitive load the MAX4075ADESA can drive without oscillation?
The MAX4075ADESA remains stable with capacitive loads up to 100pF without external compensation. This is verified per datasheet Figure 10 and Electrical Characteristics table (CLOAD = 100pF, "No sustained oscillations"). Loads exceeding 100pF require a series isolation resistor (e.g., 100Ω) between OUT and CL to maintain phase margin.
MAX4075ADESA 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:
- 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-SOIC
MAX4075ADESA FAQ
1.How can I place an order for MAX4075ADESA through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX4075ADESA 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 MAX4075ADESA reliable?
The price and inventory of MAX4075ADESA are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX4075ADESA is usually 5 days.
3.What payment methods are accepted for MAX4075ADESA?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX4075ADESA transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX4075ADESA?
MAX4075ADESA orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX4075ADESA 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 MAX4075ADESA?
For technical support, including MAX4075ADESA datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX4075ADESA requirements.
6.How does Aetrix verify that MAX4075ADESA is sourced from the original manufacturer or authorized distributors?
All MAX4075ADESA 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 MAX4075ADESA meets industry standards.
7.What is the process for return or replacement of MAX4075ADESA?
All MAX4075ADESA units undergo pre-shipment inspection (PSI). If there is an issue with MAX4075ADESA, 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 MAX4075ADESA part is unused and in its original packaging.
Return procedure for MAX4075ADESA:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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