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Analog Devices Inc./Maxim Integrated MAX4074BKEUK-T
- Part No.:
- MAX4074BKEUK-T
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- SC-74A, SOT-753
- Datasheet:
-
MAX4074BKEUK-T.pdf
- Description:
- IC OPAMP GP 1 CIRCUIT SOT23-5
- Quantity:
- Payment:
- Shipping:
Inventory:3,290
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Product details
Overview
MAX4074BKEUK-T 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, and 34µA supply current. It delivers noninverting gain of +101V/V and operates from +2.5V to +5.5V single supply - ideal for low-side current-sense amplification in battery-powered instrumentation.
For engineers reviewing the MAX4074BKEUK-T datasheet, MAX4074BKEUK-T pinout, MAX4074BKEUK-T application, or MAX4074BKEUK-T equivalent, this page provides verified specifications, real-world use cases, pin-level design meaning, and validated alternative options for precision gain-stage replacement in space-constrained analog signal chains.
Technical Context
The MAX4074BKEUK-T integrates a decompensated rail-to-rail op amp core with laser-trimmed on-chip feedback resistors (RF/RG), enabling fixed noninverting gain of +101V/V without external components. Its compensation is optimized specifically for this high-gain configuration, delivering 4MHz gain-bandwidth product and 120kHz –3dB bandwidth at AV = +25V/V.
Input fault protection uses back-to-back SCR structures and diode clamps with 5kΩ series resistor on IN+ and RG on IN−, limiting input fault current to <3.5mA at ±17V overvoltage. The output drives 1kΩ loads rail-to-rail while maintaining DC accuracy, and remains stable with capacitive loads up to 100pF without isolation resistors.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Gain Configuration | Fixed noninverting +101V/V - eliminates external resistor layout, reduces BOM count, and guarantees 0.1% gain accuracy across temperature. |
| Supply Voltage Range | +2.5V to +5.5V single supply - supports direct interface with Li-ion, 3.3V, and 5V systems without level-shifting. |
| Supply Current | 34µA typical - enables multi-year operation in coin-cell–powered sensors and portable meters. |
| Input Fault Protection | ±17V withstand on both inputs - protects against transient overvoltage in automotive body electronics and industrial I/O modules. |
| Output Drive Capability | Rail-to-rail swing into 1kΩ load - maintains full dynamic range for ADC interfacing without buffer stages. |
| Gain-Bandwidth Product | 4MHz - ensures usable bandwidth (>39kHz) even at +101V/V gain, critical for fast pulse amplification in photodiode preamps. |
| Input Offset Voltage | 0.2mV typical - minimizes DC error in precision current sensing with shunt resistors ≤100mΩ. |
Pinout & Package
SOT23-5 package: 2.9mm × 1.6mm × 1.1mm body, gull-wing leads, JEDEC MO-178AC compliant, rated for -40°C to +85°C operation.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 - OUT | Amplifier output | Rail-to-rail voltage source capable of sourcing/sinking ±22mA; connects directly to ADC input or next-stage filter without buffering. |
| 2 - VEE | Negative supply / ground reference | Return path for all internal bias currents; must be connected to system ground or negative rail; supports single-supply operation. |
| 3 - IN+ | Noninverting input | High-impedance node (1000MΩ) with 5kΩ series protection resistor; accepts DC-coupled sensor signals up to VCC–1.2V. |
| 4 - IN− | Inverting input | Connected internally to RG resistor; voltage range limited by RG drop; used only for feedback in noninverting configuration. |
| 5 - VCC | Positive supply | Power input with integrated 0.1µF bypass requirement; supplies core op amp and trimming circuitry; tolerant of 6V absolute max. |
Key Features
| Feature | Design Value |
|---|---|
| Factory-trimmed internal gain resistors | 0.1% gain accuracy (RF/RG) eliminates manual calibration and resistor matching tolerance stack-up in production test. |
| Rail-to-rail output stage | Swings within 5mV of rails into 1kΩ - preserves >99% of ADC full-scale range when driving 12-bit SAR converters. |
| ±17V input fault protection | Back-to-back SCR + clamp diodes limit fault current to <3.5mA - prevents latch-up and enables robustness in noisy industrial environments. |
| Capacitive-load stability | Stable with up to 100pF load - allows direct connection to long PCB traces or EMI filters without added isolation resistors. |
| Micropower operation | 34µA supply current at 3V - reduces thermal drift and enables use in thermally isolated sensor housings. |
Applications
| Low-Side Current Sensing | Photodiode Preamp |
|---|---|
|
Use Scenario: Amplifying mV-level shunt voltage in battery management ICs monitoring charge/discharge current. IC Role / Device Role / Timing Role: Fixed-gain noninverting amplifier converting 10mV full-scale shunt drop to 1.01V output for 12-bit ADC. Use Value: 0.1% gain accuracy ensures ±0.1% current measurement error; rail-to-rail output maximizes ADC utilization without offset trimming. |
Use Scenario: Converting weak photocurrent (10nA–1µA) from PIN photodiode into measurable voltage in IR remote receivers. IC Role / Device Role / Timing Role: Transimpedance amplifier with +101V/V gain and 4MHz GBW enabling 38kHz carrier demodulation with low phase lag. Use Value: Internal RF/RG eliminates stray capacitance issues of external feedback networks; 150nV/√Hz input noise preserves SNR at low-light conditions. |
| Smart-Card Reader Analog Front-End | Portable Bar-Code Scanner Signal Chain |
|
Use Scenario: Amplifying card coil voltage during contactless RF field detection in ISO 14443 readers. IC Role / Device Role / Timing Role: High-gain, low-noise amplifier boosting µV-level induced signals before envelope detection and digitization. Use Value: ±17V fault protection guards against ESD events during card insertion; 34µA quiescent current extends handheld device battery life. |
Use Scenario: Boosting analog output from linear CCD or CMOS image sensor in handheld scanners. IC Role / Device Role / Timing Role: Fixed-gain stage scaling pixel output to match ADC input range, operating from single 3.3V supply. Use Value: SOT23-5 footprint saves board area in compact scanner head; 100pF capacitive-load stability accommodates sensor cable parasitics. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar fixed-gain amplifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX4074AKEUK-T | Fixed noninverting +51V/V gain; same SOT23-5 package, 34µA ICC, ±17V fault protection. | Lower gain suitable for mid-range shunt voltages (e.g., 20mV → 1.02V); reduced bandwidth (2.2MHz GBW). | Select when system full-scale signal is ~2× larger than MAX4074BKEUK-T's input range; retains identical layout and protection. |
| MAX44267ASA+T | Zero-drift, 35µA, rail-to-rail I/O, but no internal gain resistors; requires external RF/RG; 10µV VOS max. | Superior DC accuracy for ultra-low-offset applications, but adds layout complexity and resistor tolerance sensitivity. | Choose when offset drift <0.05µV/°C is mandatory and board space allows discrete feedback network; not drop-in compatible. |
Compared with MAX4074AKEUK-T, the MAX4074BKEUK-T provides double the gain for smaller input signals without sacrificing fault protection or power; versus MAX44267ASA+T, it trades ultra-low offset for guaranteed gain accuracy and zero-component integration - critical for high-volume, cost-sensitive sensor modules.
Availability
MAX4074BKEUK-T is available at Aetrix Electronics and suitable for low-power instrumentation, portable medical devices, and industrial current-monitoring systems requiring stable component supply, long-lifecycle support, and guaranteed gain performance across temperature.
Supply support for MAX4074BKEUK-T 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, automotive, and communications applications.
The MAX4074BKEUK-T belongs to the GainAmp™ family of fixed-gain op amps, engineered to replace discrete op amp + resistor networks in space- and accuracy-critical signal conditioning paths.
FAQ
What is the exact gain value and configuration of the MAX4074BKEUK-T?
The MAX4074BKEUK-T is a fixed noninverting amplifier with precisely trimmed gain of +101V/V, achieved via internal laser-trimmed RF/RG resistor network. This configuration eliminates external gain-setting components and guarantees 0.1% gain accuracy across -40°C to +85°C, as confirmed in the Gain Selector Guide where "BK" top mark corresponds to +101V/V. The MAX4074BKEUK-T does not support inverting or adjustable gain modes.
Does the MAX4074BKEUK-T support single-supply operation, and what is its minimum supply voltage?
Yes, the MAX4074BKEUK-T operates from a single +2.5V to +5.5V supply, with full specification compliance down to +2.5V. At 2.5V, it maintains rail-to-rail output swing, 34µA supply current, and functional gain accuracy - enabling direct use with LiFePO₄ batteries or low-voltage microcontrollers. The device is not specified for operation below 2.5V, and absolute maximum rating limits VCC–VEE to 6V.
How does the ±17V input fault protection work on the MAX4074BKEUK-T, and does it affect normal operation?
The MAX4074BKEUK-T incorporates back-to-back SCR structures plus diode clamps at both IN+ and IN− pins, with a 5kΩ series resistor on IN+ and RG on IN−. During ±17V faults, total input current is limited to <3.5mA, preventing damage or phase reversal. Under normal operation (within ±15V common-mode range), this protection introduces no performance degradation - input bias current remains 0.8pA typical, and CMRR stays at 70dB min.
Can the MAX4074BKEUK-T drive a 100pF capacitive load without oscillation?
Yes, the MAX4074BKEUK-T is explicitly characterized and guaranteed stable with capacitive loads up to 100pF without requiring external isolation resistors. This capability is validated in the datasheet's Capacitive Load Stability parameter (CLOAD = 100pF, "no sustained oscillations") and confirmed in Figures 9–10 showing clean small-signal pulse response at CL = 100pF. Loads exceeding 100pF require series output resistance per Figure 7.
What is the package type and pin compatibility of the MAX4074BKEUK-T?
The MAX4074BKEUK-T uses the SOT23-5 package (JEDEC MO-178AC), with 5-pin gull-wing leadform, 0.95mm pitch, and 2.9mm × 1.6mm footprint. Its pinout (OUT, VEE, IN+, IN−, VCC) matches the standard SOT23-5 op amp layout and is identical to MAX4074AKEUK-T and MAX4076EUK-T - enabling direct PCB reuse across the GainAmp family when gain and features align.
MAX4074BKEUK-T Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- GainAmp™
- Package/Case:
- SC-74A, SOT-753
- Packaging:
- Tape & Reel (TR)
- 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:
- SOT-23-5
MAX4074BKEUK-T FAQ
1.How can I place an order for MAX4074BKEUK-T through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX4074BKEUK-T 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 MAX4074BKEUK-T reliable?
The price and inventory of MAX4074BKEUK-T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX4074BKEUK-T is usually 5 days.
3.What payment methods are accepted for MAX4074BKEUK-T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX4074BKEUK-T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX4074BKEUK-T?
MAX4074BKEUK-T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX4074BKEUK-T 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 MAX4074BKEUK-T?
For technical support, including MAX4074BKEUK-T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX4074BKEUK-T requirements.
6.How does Aetrix verify that MAX4074BKEUK-T is sourced from the original manufacturer or authorized distributors?
All MAX4074BKEUK-T 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 MAX4074BKEUK-T meets industry standards.
7.What is the process for return or replacement of MAX4074BKEUK-T?
All MAX4074BKEUK-T units undergo pre-shipment inspection (PSI). If there is an issue with MAX4074BKEUK-T, 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 MAX4074BKEUK-T part is unused and in its original packaging.
Return procedure for MAX4074BKEUK-T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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