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Analog Devices Inc./Maxim Integrated MAX4132EUA+T
- Part No.:
- MAX4132EUA+T
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-TSSOP, 8-MSOP (0.118", 3.00mm Width)
- Datasheet:
-
MAX4132EUA+T.pdf
- Description:
- IC OPAMP GP 2 CIRCUIT 8UMAX
- Quantity:
- Payment:
- Shipping:
Inventory:2,361
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Product details
Overview
MAX4132EUA+T from Maxim Integrated is a dual, rail-to-rail input/output operational amplifier optimized for low-voltage, single-supply precision signal conditioning. It delivers 10MHz gain-bandwidth, 900µA per amplifier quiescent current, ±4.7mV max input offset voltage (–40°C to +85°C), and rail-to-rail output swing into 250Ω loads - enabling high-fidelity analog front-ends in portable data-acquisition systems.
For engineers reviewing the MAX4132EUA+T datasheet, MAX4132EUA+T pinout, MAX4132EUA+T application, or MAX4132EUA+T equivalent, key selection criteria include its dual-channel configuration in 8-pin µMAX package, shutdown-inactive design (no SHDN pin), 2.7V–6.5V supply range, and guaranteed rail-to-rail I/O performance across industrial temperature range (–40°C to +85°C).
Technical Context
The MAX4132EUA+T employs complementary NPN/PNP input stages to achieve rail-to-rail common-mode input range extending 200mV beyond VEE and VCC, with seamless transition near mid-supply to minimize CMRR degradation. Its unity-gain-stable architecture supports direct connection to high-capacitance loads up to 160pF without external compensation.
Each amplifier features a low-noise (22nV/√Hz at 1kHz), fast-settling (2.0µs to 0.01%) signal path with 4V/µs slew rate and 0.003% THD at 10kHz. The device operates from single supplies only (no dual-supply variant offered in µMAX package) and exhibits no phase reversal under overdriven input conditions.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Gain-Bandwidth Product | 10MHz - enables stable closed-loop operation up to 100kHz with gain ≥100, suitable for anti-aliasing and sensor amplification. |
| Supply Voltage Range | +2.7V to +6.5V - supports direct interfacing with Li-ion battery (3.0–4.2V), 3.3V logic, and 5V systems without level-shifting. |
| Input Offset Voltage (max) | ±4.7mV (–40°C to +85°C) - ensures ≤0.1% gain error in 12-bit precision applications with 1V full-scale input. |
| Quiescent Current per Amp | 1200µA (max at +85°C) - balances speed and power for always-on instrumentation channels in battery-constrained devices. |
| Output Swing (250Ω load) | VOL ≤ 250mV above VEE, VOH ≥ 350mV below VCC - delivers true rail-to-rail dynamic range into moderate loads typical of ADC drivers. |
| Capacitive Load Stability | Stable with ≤160pF - eliminates need for isolation resistors when driving ADC input capacitance or long PCB traces. |
| Common-Mode Rejection | 58dB (min, –40°C to +85°C) - sufficient for DC-coupled sensor interfaces where common-mode transients are <100mV. |
Pinout & Package
MAX4132EUA+T is housed in an 8-pin µMAX package (package code U8-1), measuring 3.0mm × 3.0mm × 1.1mm with exposed pad for thermal enhancement. Pin 1 is marked by a dot; pin numbering follows standard SO/µMAX counterclockwise convention.
| Pin | Circuit Role | Design Meaning |
|---|---|---|
| 1 | OUT1 | Amplifier 1 output - drives external load or feedback network; rail-to-rail swing supports full-scale ADC input ranges. |
| 2 | IN1− | Inverting input for Amp 1 - matched impedance required with IN1+ to minimize bias-current-induced offset. |
| 3 | IN1+ | Noninverting input for Amp 1 - accepts signals from 0.2V below VEE to 0.2V above VCC, enabling ground-referenced sensor inputs. |
| 4 | VEE | Negative supply terminal - connect directly to GND in single-supply configurations; not internally connected to substrate. |
| 5 | VCC | Positive supply terminal - bypass with 0.1µF ceramic + 1µF tantalum to suppress high-frequency noise coupling. |
| 6 | IN2+ | Noninverting input for Amp 2 - electrically identical to IN1+; supports dual-channel differential sensing or independent signal paths. |
| 7 | IN2− | Inverting input for Amp 2 - use with matched feedback network for consistent gain accuracy across both amplifiers. |
| 8 | OUT2 | Amplifier 2 output - fully independent of OUT1; allows simultaneous processing of two analog channels without crosstalk penalty. |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail input common-mode range | Extends 200mV beyond VEE and VCC - enables direct interface with 0V-referenced thermistors, bridge sensors, and current-sense shunts. |
| Rail-to-rail output voltage swing | Delivers >98% of full supply range into 100kΩ, >85% into 250Ω - maximizes dynamic range for 12-/16-bit SAR and sigma-delta ADCs. |
| No phase reversal on overdrive | Prevents latch-up or erroneous output polarity during transient input excursions - critical for fault-tolerant sensor monitoring. |
| Unity-gain stability | Operates stably at AV = +1 without external compensation - simplifies design of voltage followers and active filters. |
| Low input bias current (±160nA max) | Minimizes voltage drop across high-impedance sensor sources (e.g., pH electrodes, piezoelectric elements) without gain error. |
Applications
| Battery-Powered Data Loggers | Portable Medical Sensors |
|---|---|
Use Scenario: Continuous acquisition of ECG, SpO₂, or temperature signals from low-power wearable patches using coin-cell batteries. IC Role / Device Role / Timing Role: Dual-channel signal conditioning stage: one amp buffers reference voltage, the other amplifies sensor output with programmable gain. Use Value: 900µA per amplifier enables >1-year battery life; rail-to-rail I/O preserves full sensor dynamic range without external level-shifting circuitry. |
Use Scenario: Analog front-end for handheld glucose meters or blood pressure cuffs requiring precision DC amplification and low noise. IC Role / Device Role / Timing Role: Dual op-amp configured as transimpedance amplifier (TIA) for photodiode current conversion and buffer for ratiometric reference voltage. Use Value: ±4.7mV offset ensures <0.5% measurement error at 1V full-scale; 22nV/√Hz input noise maintains SNR >80dB for sub-mV biological signals. |
| Industrial Sensor Transmitters | Low-Voltage PLC Input Modules |
Use Scenario: 4–20mA loop-powered field transmitters converting RTD, thermocouple, or strain-gauge outputs to standardized current signals. IC Role / Device Role / Timing Role: Precision instrumentation amplifier core (with external resistors) and output driver for voltage-to-current conversion stage. Use Value: 10MHz GBW supports fast step response to process transients; 2.7V minimum supply allows operation directly from loop-powered 3.3V rails. |
Use Scenario: Analog input section of DIN-rail mounted programmable logic controllers accepting 0–10V or ±10V sensor inputs in factory automation environments. IC Role / Device Role / Timing Role: Dual-channel buffer and level-shifter between field-side isolated inputs and internal 3.3V ADC subsystem. Use Value: Rail-to-rail I/O eliminates need for negative supply generation; 58dB CMRR rejects common-mode noise from motor drives and switching power supplies. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual-rail-to-rail op-amp applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| OPA2333AIDR | Lower offset (±2µV typ), lower noise (17nV/√Hz), but 350kHz GBW and higher quiescent current (17µA). | Better for ultra-precision DC applications (e.g., weigh scales); unsuitable for >100kHz signal conditioning. | Select OPA2333AIDR only when DC accuracy dominates speed requirements and supply current is unconstrained. |
| AD8602ARZ-REEL7 | Higher GBW (10MHz same), lower supply current (800µA), but narrower input common-mode range (to VEE + 0.1V) and no guaranteed rail-to-rail output into 250Ω. | Suitable for 3.3V logic-compatible systems with light loads; cannot drive heavy capacitive or resistive loads near rails. | Choose AD8602ARZ-REEL7 for cost-sensitive, low-power designs where output loading is ≤10kΩ and input common-mode stays >100mV above ground. |
Compared with OPA2333AIDR and AD8602ARZ-REEL7, MAX4132EUA+T uniquely balances 10MHz bandwidth, true rail-to-rail I/O into 250Ω, and industrial temperature rating in a space-constrained µMAX package - making it optimal for portable, battery-operated, wide-dynamic-range analog acquisition.
Availability
MAX4132EUA+T is available at Aetrix Electronics and suitable for battery-powered instruments, portable medical sensors, and industrial sensor transmitters requiring stable component supply with guaranteed industrial temperature performance and RoHS-compliant packaging.
Supply support for MAX4132EUA+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 high-performance analog and mixed-signal ICs for demanding applications in industrial, medical, and communications markets.
The MAX4130–MAX4134 family was engineered specifically for low-voltage, single-supply precision signal conditioning - prioritizing rail-to-rail I/O, low power, and robustness in portable and battery-operated systems.
FAQ
Does MAX4132EUA+T have a shutdown pin?
No, MAX4132EUA+T does not include a shutdown function. Unlike the MAX4131/MAX4133 variants, the MAX4132EUA+T is a dual op-amp without SHDN capability. Its 8-pin µMAX package contains only the two amplifier channels (OUT1/IN1+/IN1−/VEE/VCC/IN2+/IN2−/OUT2). Shutdown functionality is exclusive to MAX4131 (single) and MAX4133 (dual with independent SHDN1/SHDN2 pins).
What is the maximum capacitive load MAX4132EUA+T can drive stably?
MAX4132EUA+T is unity-gain stable with capacitive loads up to 160pF, as confirmed in the datasheet's AC Electrical Characteristics table and Figure 4 (Capacitive-Load Stability). This specification holds for all operating conditions within the industrial temperature range (–40°C to +85°C) and supply voltages from +2.7V to +6.5V, eliminating need for external isolation resistors in typical ADC input or filter applications.
Can MAX4132EUA+T operate from a 1.8V supply?
While the absolute minimum specified supply is +2.7V, the MAX4132EUA+T typically operates down to +1.8V per the General Description section. However, this behavior is not production-tested or guaranteed - parameters like GBW, output swing, and CMRR degrade significantly below 2.7V. For reliable operation across temperature and process variation, design must adhere to the rated 2.7V–6.5V range.
Is MAX4132EUA+T pin-compatible with other packages in the MAX413x family?
No, MAX4132EUA+T (8-pin µMAX) is not pin-compatible with MAX4132ESA (8-pin SO) or MAX4133ESD (14-pin SO), despite sharing the same dual-amplifier functionality. Pin assignments differ: µMAX places VEE at pin 4 and VCC at pin 5, while SO places VEE at pin 4 and VCC at pin 8. Layout redesign is required when substituting packages.
What is the input protection scheme used in MAX4132EUA+T?
MAX4132EUA+T incorporates input protection consisting of 1kΩ series resistors and back-to-back triple diodes across IN+ and IN− terminals (Figure 2 in datasheet). This limits differential input voltage to ±1.8V for safe operation. For inputs within ±1.8V, input resistance is ~500kΩ; beyond that, resistance drops to ~2kΩ, and bias current becomes proportional to (VDIFF – 1.8V)/2kΩ.
MAX4132EUA+T Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Package/Case:
- 8-TSSOP, 8-MSOP (0.118", 3.00mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Amplifier Type:
- General Purpose
- Number of Circuits:
- 2
- Output Type:
- Rail-to-Rail
- Slew Rate:
- 4V/µs
- Gain Bandwidth Product:
- 10 MHz
- -3db Bandwidth:
- -
- Current - Input Bias:
- 50 nA
- Voltage - Input Offset:
- 400 µV
- Current - Supply:
- 1mA (x2 Channels)
- Current - Output / Channel:
- 50 mA
- Voltage - Supply Span (Min):
- 2.7 V
- Voltage - Supply Span (Max):
- 6.5 V
- Operating Temperature:
- -40°C ~ 85°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-uMAX/uSOP
MAX4132EUA+T FAQ
1.How can I place an order for MAX4132EUA+T through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX4132EUA+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 MAX4132EUA+T reliable?
The price and inventory of MAX4132EUA+T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX4132EUA+T is usually 5 days.
3.What payment methods are accepted for MAX4132EUA+T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX4132EUA+T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX4132EUA+T?
MAX4132EUA+T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX4132EUA+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 MAX4132EUA+T?
For technical support, including MAX4132EUA+T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX4132EUA+T requirements.
6.How does Aetrix verify that MAX4132EUA+T is sourced from the original manufacturer or authorized distributors?
All MAX4132EUA+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 MAX4132EUA+T meets industry standards.
7.What is the process for return or replacement of MAX4132EUA+T?
All MAX4132EUA+T units undergo pre-shipment inspection (PSI). If there is an issue with MAX4132EUA+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 MAX4132EUA+T part is unused and in its original packaging.
Return procedure for MAX4132EUA+T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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