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Analog Devices Inc./Maxim Integrated MAX4333EUB-T
- Part No.:
- MAX4333EUB-T
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 10-TFSOP, 10-MSOP (0.118", 3.00mm Width)
- Datasheet:
-
MAX4333EUB-T.pdf
- Description:
- IC OPAMP GP 2 CIRC 10UMAX/USOP
- Quantity:
- Payment:
- Shipping:
Inventory:3,502
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Product details
Overview
MAX4333EUB-T from Maxim Integrated is a dual, low-power, rail-to-rail input/output operational amplifier with shutdown control, designed for precision signal conditioning in single-supply systems. It delivers 3MHz gain-bandwidth, 245µA per amplifier quiescent current, ±0.25mV typical input offset voltage, and operates from +2.3V to +6.5V. It is used in portable data-acquisition front-ends where rail-to-rail swing and low supply current are critical.
For engineers reviewing the MAX4333EUB-T datasheet, MAX4333EUB-T pinout, MAX4333EUB-T application, or MAX4333EUB-T equivalent, key selection considerations include its dual-channel configuration, 10-pin µMAX package, shutdown functionality (9µA per amp), rail-to-rail I/O performance down to 2.3V, and verified operation with 2kΩ loads.
Technical Context
The MAX4333EUB-T integrates two independent amplifiers sharing a common shutdown control (SHDN) pin. Each amplifier features a composite NPN/PNP input stage enabling rail-to-rail common-mode input range extending 250mV beyond VEE and VCC, with no phase reversal on overdriven inputs. Its output stage drives 2kΩ loads while maintaining rail-to-rail swing - typically within 125mV of either rail at VCC = 3V.
It supports stable unity-gain operation and tolerates capacitive loads up to 150pF without external compensation. Shutdown mode disables both amplifiers simultaneously, reducing total supply current to 18µA (9µA per amp) and placing outputs in high-impedance state - confirmed across –40°C to +85°C operating range.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Gain-Bandwidth Product | 3MHz - supports stable unity-gain buffers and low-noise signal chains up to audio frequencies. |
| Quiescent Current per Amplifier | 245µA - enables multi-hour battery life in portable instrumentation with dual active channels. |
| Input Offset Voltage | ±0.25mV (typ) - ensures <0.5% error in 12-bit ADC front-end applications at room temperature. |
| Rail-to-Rail Input Range | VEE – 0.25V to VCC + 0.25V - allows direct sensing of signals near ground or supply rails without level-shifting. |
| Shutdown Supply Current | 9µA per amplifier - reduces system standby power by >96% versus active mode, critical for duty-cycled sensors. |
| Output Swing into 2kΩ | Within 125mV of rails (VCC = 3V) - preserves dynamic range in low-voltage, single-supply data acquisition. |
| Common-Mode Rejection Ratio | 71dB (min) - suppresses noise coupling in noisy industrial sensor interfaces. |
Pinout & Package
MAX4333EUB-T is housed in a 10-pin µMAX package (3.099mm × 3.200mm, 0.5mm pitch), thermally enhanced for compact PCB layouts and compatible with standard surface-mount reflow processes.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | OUT1 | Inverting amplifier output channel 1 - high-impedance during shutdown, rail-to-rail capable. |
| 2 | IN1− | Inverting input for amplifier 1 - protected by internal 1kΩ series resistors and diode clamps. |
| 3 | IN1+ | Noninverting input for amplifier 1 - supports common-mode range beyond rails (VEE–0.25V to VCC+0.25V). |
| 4 | VEE | Negative supply / ground reference - substrate tied to VEE; must be bypassed with 0.1µF capacitor. |
| 5 | VCC | Positive supply input - accepts +2.3V to +6.5V; requires local 0.1µF decoupling to VEE. |
| 6 | IN2+ | Noninverting input for amplifier 2 - electrically identical to IN1+, fully independent channel. |
| 7 | IN2− | Inverting input for amplifier 2 - matched bias and offset characteristics to IN1−. |
| 8 | OUT2 | Inverting amplifier output channel 2 - identical drive capability and shutdown behavior as OUT1. |
| 9 | SHDN1 | Shutdown control for both amplifiers - logic-low (<0.8V) enables high-impedance output and 9µA/amp current draw. |
| 10 | SHDN2 | Redundant shutdown terminal - internally tied to SHDN1; must be connected to same logic node. |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail input common-mode range | Extends 250mV beyond VEE and VCC - eliminates need for input biasing networks in single-supply sensor interfaces. |
| No phase reversal on overdrive | Prevents latch-up or erroneous output transitions when inputs exceed common-mode limits - improves robustness in transient-prone environments. |
| Capacitive load stability | Stable with up to 150pF - avoids oscillation when driving ADC input capacitance or long traces without isolation resistors. |
| Low input bias current mismatch | ±1nA max input offset current - minimizes voltage error across matched source impedances in differential configurations. |
| Unity-gain stable | Operates reliably as buffer or gain-of-one stage - simplifies design of anti-aliasing filters and sensor interface buffers. |
Applications
| Portable ECG Front-End | Industrial 4–20mA Loop Receiver |
|---|---|
Use Scenario: Amplifying microvolt-level biopotential signals from dry electrodes in battery-powered wearable monitors. IC Role / Device Role / Timing Role: Dual-channel instrumentation amplifier front-end providing gain, filtering, and rail-to-rail buffering before 12-bit SAR ADC sampling. Use Value: 245µA per amp quiescent current extends battery life to >72 hours; rail-to-rail swing maximizes ADC utilization at 3.3V supply. |
Use Scenario: Converting 4–20mA loop current to 0–2.5V analog signal for PLC analog input modules in factory automation. IC Role / Device Role / Timing Role: Precision current-to-voltage converter and level-shifter, referenced to isolated system ground. Use Value: ±0.25mV offset ensures <0.01% full-scale error; 71dB CMRR rejects common-mode noise from motor drives and switching power supplies. |
| Handheld Gas Sensor Signal Chain | Low-Power RTD Bridge Amplifier |
Use Scenario: Conditioning low-amplitude, high-impedance outputs from electrochemical gas sensors in portable air quality analyzers. IC Role / Device Role / Timing Role: Transimpedance amplifier and programmable gain stage feeding low-power microcontroller ADC. Use Value: Shutdown mode (9µA/amp) enables 99% power reduction between 10s measurement intervals - critical for coin-cell operation. |
Use Scenario: Amplifying µV-level resistance changes from 3-wire Pt100 RTD bridges in battery-operated temperature loggers. IC Role / Device Role / Timing Role: Low-drift, low-noise bridge amplifier with matched input impedance and rail-to-rail output swing. Use Value: 250µV offset and ±3µV/°C tempco ensure ±0.1°C accuracy over –20°C to +70°C without calibration. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual op-amp with shutdown applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TLV2462IDR | Higher quiescent current (550µA/amp), no shutdown, wider supply range (2.7–6V), lower GBW (6.4MHz) | Suitable where shutdown is unnecessary and higher speed is prioritized over power | Select TLV2462IDR only if system lacks shutdown control logic and requires >3MHz bandwidth. |
| AD8602ARZ | No shutdown, lower offset (60µV typ), higher supply current (800µA/amp), rail-to-rail I/O, 8MHz GBW | Better DC precision but incompatible with ultra-low-power sleep modes | Choose AD8602ARZ when offset-critical sensor applications demand sub-100µV performance and shutdown is not required. |
Compared with TLV2462IDR and AD8602ARZ, MAX4333EUB-T uniquely balances sub-250µA quiescent current, integrated shutdown, rail-to-rail I/O, and 3MHz bandwidth - making it the only option among the three qualified for battery-powered, duty-cycled precision analog front-ends.
Availability
MAX4333EUB-T is available at Aetrix Electronics and suitable for portable medical devices, industrial loop receivers, and handheld environmental sensors requiring stable component supply, extended temperature support (–40°C to +85°C), and long-term production continuity.
Supply support for MAX4333EUB-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) is a semiconductor company specializing in high-performance analog, mixed-signal, and power-management ICs for industrial, communications, and consumer applications.
The MAX4330–MAX4334 family was designed specifically for low-voltage, single-supply precision signal conditioning - targeting portable instrumentation, sensor interfaces, and battery-constrained data acquisition where rail-to-rail operation and micropower shutdown are mandatory.
FAQ
What is the operating supply voltage range for MAX4333EUB-T?
The MAX4333EUB-T operates from a single +2.3V to +6.5V supply or dual ±1.15V to ±3.25V supplies. Its minimum specified voltage is +2.3V, though it typically functions down to +2.0V. This wide range supports compatibility with Li-ion, alkaline, and regulated 3.3V/5V systems - all while maintaining rail-to-rail input/output performance and 3MHz bandwidth in the MAX4333EUB-T.
Does MAX4333EUB-T support true rail-to-rail input and output operation?
Yes, the MAX4333EUB-T supports rail-to-rail input common-mode voltage range (VEE – 0.25V to VCC + 0.25V) and rail-to-rail output voltage swing (within 125mV of rails into 2kΩ at VCC = 3V). This is achieved via complementary NPN/PNP input stages and a Class AB output stage - confirmed in the MAX4333EUB-T datasheet's Typical Operating Characteristics and Pin Description sections.
How does the shutdown feature work on MAX4333EUB-T?
The MAX4333EUB-T enters shutdown when the SHDN1 (Pin 9) and SHDN2 (Pin 10) pins are driven below 0.8V (relative to VEE). In this state, each amplifier draws just 9µA supply current, and both outputs go high-impedance. Pulling SHDN ≥2V or leaving it open enables normal operation. The MAX4333EUB-T datasheet specifies this behavior across –40°C to +85°C and confirms no phase reversal during transition.
Can MAX4333EUB-T drive a 2kΩ load while maintaining rail-to-rail swing?
Yes - the MAX4333EUB-T is explicitly characterized to drive 2kΩ loads while delivering rail-to-rail output swing. At VCC = 3V, typical output swing is within 70mV of VEE and 100mV of VCC under full load (2kΩ to mid-supply), as shown in Figure 3 of the MAX4333EUB-T datasheet. This capability is guaranteed across temperature and supply voltage variations.
What is the input offset voltage specification for MAX4333EUB-T?
The MAX4333EUB-T has a maximum input offset voltage of ±0.65mV over temperature (–40°C to +85°C), with a typical value of ±0.25mV at +25°C. Its offset voltage tempco is ±3µV/°C, ensuring predictable drift in precision applications. These values are measured per amplifier and are fully specified in the DC Electrical Characteristics table of the MAX4333EUB-T datasheet.
MAX4333EUB-T Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Package/Case:
- 10-TFSOP, 10-MSOP (0.118", 3.00mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Amplifier Type:
- General Purpose
- Number of Circuits:
- 2
- Output Type:
- Rail-to-Rail
- Slew Rate:
- 1.5V/µs
- Gain Bandwidth Product:
- 3 MHz
- -3db Bandwidth:
- -
- Current - Input Bias:
- 25 nA
- Voltage - Input Offset:
- 650 µV
- Current - Supply:
- 275µA (x2 Channels)
- Current - Output / Channel:
- 20 mA
- Voltage - Supply Span (Min):
- 2.3 V
- Voltage - Supply Span (Max):
- 6.5 V
- Operating Temperature:
- -40°C ~ 85°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 10-uMAX/uSOP
MAX4333EUB-T FAQ
1.How can I place an order for MAX4333EUB-T through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX4333EUB-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 MAX4333EUB-T reliable?
The price and inventory of MAX4333EUB-T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX4333EUB-T is usually 5 days.
3.What payment methods are accepted for MAX4333EUB-T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX4333EUB-T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX4333EUB-T?
MAX4333EUB-T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX4333EUB-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 MAX4333EUB-T?
For technical support, including MAX4333EUB-T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX4333EUB-T requirements.
6.How does Aetrix verify that MAX4333EUB-T is sourced from the original manufacturer or authorized distributors?
All MAX4333EUB-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 MAX4333EUB-T meets industry standards.
7.What is the process for return or replacement of MAX4333EUB-T?
All MAX4333EUB-T units undergo pre-shipment inspection (PSI). If there is an issue with MAX4333EUB-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 MAX4333EUB-T part is unused and in its original packaging.
Return procedure for MAX4333EUB-T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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