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Analog Devices Inc./Maxim Integrated MAX4043EUB+
- Part No.:
- MAX4043EUB+
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 10-TFSOP, 10-MSOP (0.118", 3.00mm Width)
- Datasheet:
-
MAX4043EUB+.pdf
- Description:
- IC OPAMP GP 2 CIRC 10UMAX/USOP
- Quantity:
- Payment:
- Shipping:
Inventory:200
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Product details
Overview
MAX4043EUB+ from Maxim Integrated is a dual, micropower, rail-to-rail input/output operational amplifier optimized for battery-powered systems. It operates from a single +2.4V to +5.5V supply, draws only 10µA per amplifier, delivers 90kHz gain-bandwidth, and features shutdown mode reducing current to <1µA. It is used in portable sensor signal conditioning where ultra-low power and full-rail swing are critical.
For engineers reviewing the MAX4043EUB+ datasheet, MAX4043EUB+ pinout, MAX4043EUB+ application, or MAX4043EUB+ equivalent, key selection criteria include shutdown functionality, 200µV input offset voltage, rail-to-rail output swing within 10mV of rails (100kΩ load), unity-gain stability with up to 200pF capacitive loads, and guaranteed operation over –40°C to +85°C.
Technical Context
The MAX4043EUB+ integrates two independent amplifiers in a 10-pin µMAX package, each with separate shutdown control (SHDNA/SHDNB) and rail-to-rail input stage using complementary NPN/PNP differential pairs. Its input common-mode range extends from VEE to VCC, and output swing reaches within 10mV of both rails under 100kΩ load.
It employs internal 2.2kΩ series input resistors and back-to-back diode clamps for ±1.8V differential input protection. The output stage behaves as a current source/sink, delivering up to 240µA while maintaining linearity near the rails - enabling precision low-voltage sensing without external level-shifting.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | +2.4V to +5.5V single supply - supports direct connection to decaying Li-ion or alkaline battery stacks without regulation. |
| Supply Current per Amp | 10µA typical - enables multi-year operation in coin-cell–powered IoT sensors. |
| Gain-Bandwidth Product | 90kHz - sufficient for DC-coupled sensor amplification (e.g., strain gauges, thermistors) with stable unity-gain response. |
| Input Offset Voltage | ±200µV max - ensures sub-1mV error in 5V full-scale 12-bit ADC interfaces. |
| Rail-to-Rail Output Swing | Within 10mV of VEE/VCC at 100kΩ - maximizes dynamic range in low-voltage systems (e.g., 2.4V supply yields >2.38V usable swing). |
| Shutdown Current | <1µA per amplifier - reduces system standby power to nanoampere levels when inactive. |
| Capacitive Load Stability | Stable with ≤200pF - eliminates need for isolation resistors in most PCB trace and filter capacitor scenarios. |
Pinout & Package
MAX4043EUB+ is housed in a 10-pin µMAX package (3.05mm × 3.05mm × 0.8mm), pin-compatible with industry-standard 10-lead µSOP footprints and optimized for space-constrained portable designs.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 7 | VCC | Positive supply input - must be bypassed with 100nF capacitor to VEE for noise immunity. |
| 2, 6 | SHDNA / SHDNB | Independent shutdown control for Amp A/B - logic low (≤0.3×VCC) disables amplifier and forces high-Z output. |
| 3, 5 | INA− / INB− | Inverting inputs - internally protected by 2.2kΩ series resistors and diode clamps. |
| 4, 8 | INA+ / INB+ | Noninverting inputs - common-mode range spans VEE to VCC; polarity reversal avoided across full range. |
| 9, 10 | OUTA / OUTB | Amplifier outputs - enter high-impedance state during shutdown; drive ≥25kΩ load to mid-supply. |
Key Features
| Feature | Design Value |
|---|---|
| No phase reversal on overdriven inputs | Prevents latch-up or erratic behavior when input exceeds rails - critical for unbuffered sensor front-ends. |
| Rail-to-rail input common-mode range | VEE to VCC - enables direct interfacing with ground-referenced or rail-referenced transducers without biasing networks. |
| 200µV input offset voltage | Minimizes DC error in precision gain stages - supports accurate 12-bit measurement resolution at 5V full scale. |
| Unity-gain stable with 200pF load | Eliminates need for external compensation in most layout conditions - simplifies design and reduces BOM count. |
| Low-power shutdown (<1µA) | Enables duty-cycled operation in energy-harvesting nodes - extends battery life by orders of magnitude during idle periods. |
Applications
| Battery-Powered Sensor Amplifier | Portable Medical Device Front-End |
|---|---|
|
Use Scenario: Amplifying low-level signals from wearable ECG electrodes powered by a 3.0V coin cell. IC Role / Device Role / Timing Role: Dual-channel signal conditioning amplifier with independent shutdown for lead-off detection circuitry. Use Value: 10µA per channel and rail-to-rail swing preserve >98% of 3.0V dynamic range while extending battery life beyond 3 years. |
Use Scenario: Signal conditioning for temperature and oxygen saturation sensors in handheld pulse oximeters. IC Role / Device Role / Timing Role: Dual op amp providing programmable gain and offset correction prior to 12-bit SAR ADC sampling. Use Value: 200µV offset and 90kHz GBW ensure <0.1% gain error and distortion-free acquisition of physiological waveforms up to 10Hz. |
| Digital Scale Load Cell Interface | IoT Node Strain Gauge Amplifier |
|
Use Scenario: Amplifying mV-level Wheatstone bridge output in battery-operated kitchen scales. IC Role / Device Role / Timing Role: Precision instrumentation amplifier front-end (with external resistors) rejecting common-mode noise from AC mains. Use Value: Rail-to-rail I/O and 85dB PSRR maintain accuracy despite ±10% battery voltage drop during discharge cycle. |
Use Scenario: Low-power amplification of microstrain signals in structural health monitoring nodes deployed for years. IC Role / Device Role / Timing Role: Dual-channel sensor interface with one amp active for measurement and second in shutdown for wake-on-event triggering. Use Value: <1µA shutdown current and 200pF capacitive load tolerance enable reliable operation with long PCB traces and embedded filtering. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual micropower rail-to-rail op amp applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TLV2462IDR | Higher supply current (220µA/amp), no shutdown, 6.4MHz GBW - trades power for bandwidth. | Suitable for higher-speed sensor interfaces but incompatible with multi-year battery life requirements. | Select only if >100kHz signal bandwidth is required and power budget allows >20× higher quiescent current. |
| LPV521MG/NOPB | Lower supply current (320nA/amp), 15.5kHz GBW, no shutdown - ultra-low power but reduced speed. | Fits extreme-energy-constrained applications (e.g., passive RFID sensors), but insufficient for 10Hz+ biomedical waveforms. | Choose when sub-microamp operation dominates over bandwidth and shutdown control is unnecessary. |
Compared with TLV2462IDR and LPV521MG/NOPB, the MAX4043EUB+ uniquely balances 10µA supply current, 90kHz bandwidth, dual independent shutdown, and rail-to-rail I/O - making it optimal for portable precision analog systems requiring both longevity and responsiveness.
Availability
MAX4043EUB+ is available at Aetrix Electronics and suitable for battery-powered medical devices, portable instrumentation, and industrial IoT sensor nodes requiring stable component supply across extended product lifecycles.
Supply support for MAX4043EUB+ 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) is a semiconductor company specializing in high-performance analog and mixed-signal ICs for power, sensing, and communication applications.
The MAX4040–MAX4044 family was designed specifically for ultra-low-power, rail-to-rail signal conditioning in portable and battery-operated systems - emphasizing micropower operation, wide supply range, and robust input/output swing.
FAQ
What is the operating temperature range for MAX4043EUB+?
The MAX4043EUB+ is specified and guaranteed over the extended industrial temperature range of –40°C to +85°C. All electrical characteristics - including supply current, input offset voltage, and output swing - are tested and validated across this full range, ensuring reliability in outdoor, automotive cabin, and portable equipment environments.
Does MAX4043EUB+ support single-supply operation?
Yes, MAX4043EUB+ fully supports single-supply operation from +2.4V to +5.5V. Its rail-to-rail input and output stages allow the entire supply voltage range to be used for signal swing, eliminating the need for virtual ground or level-shifting circuits in low-voltage systems such as 3V battery-powered devices.
How does the shutdown feature work on MAX4043EUB+?
MAX4043EUB+ provides independent shutdown pins (SHDNA and SHDNB) for each amplifier. Driving either pin low (≤0.3×VCC) reduces its amplifier's supply current to <1µA and places its output in a high-impedance state. Pulling the pin high (≥0.7×VCC) or leaving it floating enables normal operation - though floating is discouraged due to leakage sensitivity.
Can MAX4043EUB+ drive capacitive loads without oscillation?
Yes, MAX4043EUB+ is unity-gain stable with capacitive loads up to 200pF, as confirmed in the datasheet's "Load Resistor vs. Capacitive Load" graph. For loads exceeding 200pF, an isolation resistor (e.g., 1kΩ) between output and capacitance restores stability - though this introduces gain error due to voltage division with the load resistor.
What is the input offset voltage specification for MAX4043EUB+?
The MAX4043EUB+ has a maximum input offset voltage of ±200µV at +25°C and ±3.5mV over the full –40°C to +85°C temperature range. Its offset drift is 2µV/°C, enabling predictable error compensation in precision DC-coupled applications like digital weight scales and medical sensor front-ends.
MAX4043EUB+ Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Package/Case:
- 10-TFSOP, 10-MSOP (0.118", 3.00mm Width)
- Packaging:
- Tube
- Product Status:
- Active
- Amplifier Type:
- General Purpose
- Number of Circuits:
- 2
- Output Type:
- Rail-to-Rail
- Slew Rate:
- 0.04V/µs
- Gain Bandwidth Product:
- 90 kHz
- -3db Bandwidth:
- -
- Current - Input Bias:
- 2 nA
- Voltage - Input Offset:
- 250 µV
- Current - Supply:
- 14µA (x2 Channels)
- Current - Output / Channel:
- 2.5 mA
- Voltage - Supply Span (Min):
- 2.4 V
- Voltage - Supply Span (Max):
- 5.5 V
- Operating Temperature:
- -40°C ~ 85°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 10-uMAX/uSOP
MAX4043EUB+ FAQ
1.How can I place an order for MAX4043EUB+ through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX4043EUB+ 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 MAX4043EUB+ reliable?
The price and inventory of MAX4043EUB+ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX4043EUB+ is usually 5 days.
3.What payment methods are accepted for MAX4043EUB+?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX4043EUB+ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX4043EUB+?
MAX4043EUB+ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX4043EUB+ 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 MAX4043EUB+?
For technical support, including MAX4043EUB+ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX4043EUB+ requirements.
6.How does Aetrix verify that MAX4043EUB+ is sourced from the original manufacturer or authorized distributors?
All MAX4043EUB+ 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 MAX4043EUB+ meets industry standards.
7.What is the process for return or replacement of MAX4043EUB+?
All MAX4043EUB+ units undergo pre-shipment inspection (PSI). If there is an issue with MAX4043EUB+, 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 MAX4043EUB+ part is unused and in its original packaging.
Return procedure for MAX4043EUB+:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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