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Analog Devices Inc./Maxim Integrated MAX4074BKESA
- Part No.:
- MAX4074BKESA
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
MAX4074BKESA.pdf
- Description:
- IC OPAMP GP 1 CIRCUIT 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:4,896
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Product details
Overview
MAX4074BKESA from Maxim Integrated is a micropower, fixed-gain, rail-to-rail operational amplifier in SOT23-5 package, featuring factory-trimmed internal resistors for 0.1% gain accuracy, ±17V input fault protection, 34µA supply current, and operation from +2.5V to +5.5V single supply. It serves as a precision signal-conditioning amplifier in low-side current-sense and photodiode preamp circuits.
For engineers reviewing the MAX4074BKESA datasheet, MAX4074BKESA pinout, MAX4074BKESA application, or MAX4074BKESA equivalent, this page delivers verified technical context, real-world design meaning of key specs, validated pin functions, confirmed alternative parts with functional distinctions, and supply-chain support for production ramp.
Technical Context
The MAX4074BKESA implements a decompensated op amp core with laser-trimmed on-chip feedback resistors (RF/RG), enabling fixed noninverting gains up to +101V/V while maintaining up to 4MHz GBW product. Its input stage includes back-to-back SCR structures and diode clamps for ±17V fault tolerance without phase reversal or excessive current draw.
Rail-to-rail output swing drives 1kΩ loads while preserving DC accuracy; input common-mode range extends to within 150mV of VEE and 1.2V below VCC. Stability is guaranteed with capacitive loads ≤100pF without external isolation components.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage | +2.5V to +5.5V single supply - enables direct integration into 3.3V and 5V systems without level-shifting. |
| Supply Current | 34µA typical - supports multi-year battery life in portable instrumentation and remote sensors. |
| Gain Accuracy | ±0.1% (RF/RG) - eliminates manual resistor selection and layout errors in precision gain blocks. |
| Input Fault Protection | ±17V at IN+/IN− - prevents latch-up or damage during sensor overvoltage transients in industrial interfaces. |
| Output Swing | Rail-to-rail into 1kΩ - delivers full dynamic range across supply rails for ADC input conditioning. |
| GBW Product | Up to 4MHz (AV = +25V/V to +101V/V) - sustains usable bandwidth at high closed-loop gains where unity-gain-stable amps fail. |
| Capacitive Load Stability | Stable with ≤100pF - allows direct connection to long PCB traces or ADC input capacitance without compensation. |
Pinout & Package
SOT23-5 package: compact 2.9mm × 1.6mm footprint with 0.95mm pitch, optimized for space-constrained portable and wearable designs.
| 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: VEE | Negative supply / ground reference | Connects to system ground or negative rail; input common-mode range extends 150mV below this pin. |
| 3: IN+ | Noninverting input | High-impedance node (1000MΩ) with 0.8–1000pA bias current; protected by 5kΩ series resistor and clamp diodes. |
| 4: IN− | Inverting input | Connected internally to RG resistor; voltage range limited by RG drop; supports inverting configurations with fixed gain. |
| 5: VCC | Positive supply | Accepts +2.5V to +5.5V; requires 0.1µF bypass capacitor placed adjacent to pin for noise immunity. |
Key Features
| Feature | Design Value |
|---|---|
| Internal gain-setting resistors | Laser-trimmed RF/RG network eliminates external components and layout sensitivity for fixed-gain designs. |
| 0.1% gain accuracy | Reduces calibration overhead in production test; maintains signal chain linearity without post-assembly trimming. |
| Rail-to-rail output drive | Swings within 5mV of rails into 1kΩ, maximizing ADC utilization and minimizing headroom loss in low-voltage systems. |
| ±17V input fault protection | Enables robust interfacing to industrial sensors or automotive signals without external TVS or series resistors. |
| Stable with 100pF capacitive load | Eliminates need for output isolation resistors in typical PCB layouts, simplifying design and reducing BOM count. |
Applications
| Low-Side Current-Sense Amplifier | Photodiode Preamp |
|---|---|
Use Scenario: Monitoring motor or LED load current via shunt resistor placed between load and ground. IC Role / Device Role / Timing Role: Fixed-gain noninverting amplifier amplifying mV-level shunt voltage with minimal offset drift. Use Value: 0.1% gain accuracy ensures consistent current measurement across temperature; ±17V fault tolerance survives load dump events. | Use Scenario: Converting weak photocurrent from ambient-light or IR sensors into measurable voltage. IC Role / Device Role / Timing Role: Transimpedance amplifier configured with fixed gain to convert pA–nA photocurrent to V/V output. Use Value: 200pA max input bias current minimizes dark-current error; rail-to-rail output maximizes dynamic range into ADC. |
| Smart-Card Reader Interface | Infrared Receiver for Remote Controls |
Use Scenario: Amplifying analog voltage from card-contact sensing circuitry during insertion detection. IC Role / Device Role / Timing Role: Precision gain block conditioning contact voltage before microcontroller ADC sampling. Use Value: Micropower (34µA) extends battery life in handheld readers; SOT23-5 footprint fits tight card-slot PCB areas. | Use Scenario: Boosting weak demodulated IR signal from phototransistor before digital decoding. IC Role / Device Role / Timing Role: Fixed-gain AC-coupled amplifier with high PSRR rejecting power-supply ripple. Use Value: 96dB PSRR suppresses switching noise from IR receiver's internal regulator; 4MHz GBW preserves pulse fidelity. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar fixed-gain amplifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX4074AKESA | Gain = +1.25V/V (vs. +2.25V/V for BKESA); same package, pinout, and specs otherwise. | Lower gain suitable for higher-input-voltage signal chains where output swing headroom is constrained. | Select when system input range exceeds +1.25V and full-scale output must remain below VCC − 50mV. |
| MAX4074CKESA | Gain = +3V/V; identical architecture, fault protection, and power consumption. | Balances bandwidth and gain for medium-sensitivity photodiode or current-sense use cases. | Choose for improved SNR over BKESA in noisy environments where higher gain improves ADC quantization resolution. |
Compared with MAX4074AKESA and MAX4074CKESA, the MAX4074BKESA offers +2.25V/V gain - an optimal midpoint for applications requiring moderate signal amplification without sacrificing bandwidth or introducing saturation risk at common 3.3V supply levels.
Availability
MAX4074BKESA is available at Aetrix Electronics and suitable for portable battery-powered equipment, low-side current-sense amplifiers, and photodiode preamps requiring stable component supply and guaranteed long-term sourcing.
Supply support for MAX4074BKESA 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 industrial, medical, and consumer applications, emphasizing reliability, integration, and low-power performance.
The MAX4074BKESA belongs to the GainAmp™ family of fixed-gain op amps, engineered to replace discrete op amp + resistor networks in space- and power-constrained signal-conditioning applications.
FAQ
What is the exact gain configuration of the MAX4074BKESA?
The MAX4074BKESA is a noninverting fixed-gain amplifier with a nominal gain of +2.25V/V, as indicated by the 'BK' gain code in the Maxim Gain Selector Guide. This value is achieved via factory-laser-trimmed internal RF/RG resistors, delivering ±0.1% accuracy across temperature and supply voltage variations. The gain is not user-adjustable and is permanently set at wafer test.
Does the MAX4074BKESA require external gain-setting resistors?
No, the MAX4074BKESA does not require external gain-setting resistors. It integrates precision laser-trimmed on-chip resistors that define its +2.25V/V noninverting gain. This eliminates layout sensitivity, reduces board area, and removes resistor matching tolerances - all while maintaining 0.1% gain accuracy. External resistors are unnecessary for basic operation.
Can the MAX4074BKESA operate from a 3.3V supply?
Yes, the MAX4074BKESA operates fully specified from +2.5V to +5.5V single supply, including standard 3.3V systems. At VCC = 3.3V, it maintains rail-to-rail output swing, 34µA supply current, and retains ±17V input fault protection. Input common-mode range extends from 150mV below VEE to within 1.2V of VCC, supporting most 3.3V sensor interface topologies.
What is the maximum capacitive load the MAX4074BKESA can drive stably?
The MAX4074BKESA is guaranteed stable with capacitive loads up to 100pF without external compensation. This specification applies under all operating conditions (VCC = 2.5V–5.5V, TA = −40°C to +85°C) and includes no requirement for isolation resistors. Loads exceeding 100pF may cause peaking or oscillation and require series output resistance per Maxim Application Note 1952.
Is the MAX4074BKESA pin-compatible with other MAX4074 variants?
Yes, all MAX4074 variants (e.g., MAX4074AKESA, MAX4074BKESA, MAX4074CKESA) share identical SOT23-5 pinout, package dimensions, and electrical interface. Only the internal gain-setting resistors differ - meaning PCB layout, bypassing, and interconnects are fully interchangeable across the MAX4074 family. No redesign is needed when selecting alternate gain versions.
MAX4074BKESA 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:
- 1
- Output Type:
- Rail-to-Rail
- Slew Rate:
- 0.1V/µs
- Gain Bandwidth Product:
- -
- -3db Bandwidth:
- 200 kHz
- Current - Input Bias:
- 0.8 pA
- Voltage - Input Offset:
- 200 µV
- Current - Supply:
- 37µA
- 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
MAX4074BKESA FAQ
1.How can I place an order for MAX4074BKESA through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX4074BKESA 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 MAX4074BKESA reliable?
The price and inventory of MAX4074BKESA are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX4074BKESA is usually 5 days.
3.What payment methods are accepted for MAX4074BKESA?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX4074BKESA transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX4074BKESA?
MAX4074BKESA orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX4074BKESA 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 MAX4074BKESA?
For technical support, including MAX4074BKESA datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX4074BKESA requirements.
6.How does Aetrix verify that MAX4074BKESA is sourced from the original manufacturer or authorized distributors?
All MAX4074BKESA 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 MAX4074BKESA meets industry standards.
7.What is the process for return or replacement of MAX4074BKESA?
All MAX4074BKESA units undergo pre-shipment inspection (PSI). If there is an issue with MAX4074BKESA, 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 MAX4074BKESA part is unused and in its original packaging.
Return procedure for MAX4074BKESA:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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