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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:4,400
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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 operation. 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 precision signal conditioning in battery-powered 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 status (no SHDN pin), unity-gain stability, 160pF capacitive-load tolerance, and operation from +2.7V to +6.5V single supply.
Technical Context
The MAX4132EUA-T implements a composite rail-to-rail input stage using parallel NPN and PNP differential pairs, extending common-mode range 200mV beyond VEE and VCC. Its output stage employs complementary Class-AB architecture to achieve millivolt-level output swing near both rails under load.
This dual op amp operates with no internal shutdown control - unlike MAX4133 - and is specified for –40°C to +85°C industrial temperature range. It maintains 66dB min large-signal voltage gain at 2.7V supply with 250Ω load and exhibits 22nV/√Hz input voltage noise density at 1kHz.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Gain-Bandwidth Product | 10MHz - supports stable closed-loop operation up to 1MHz at unity gain with adequate phase margin. |
| Supply Current per Amplifier | 1.2mA max (–40°C to +85°C) - enables multi-channel low-power designs without thermal derating concerns. |
| Input Offset Voltage | ±4.7mV max (–40°C to +85°C) - ensures <0.5% error in 1V full-scale 12-bit ADC front-end applications. |
| Output Voltage Swing | VOL ≤ 250mV above VEE, VOH ≥ VCC – 350mV (RL = 250Ω) - delivers >92% of full rail-to-rail dynamic range into moderate loads. |
| Capacitive-Load Stability | Stable with ≤160pF - eliminates need for external isolation resistors when driving ADC input capacitance or long traces. |
| Common-Mode Rejection Ratio | 58dB min (–40°C to +85°C) - suppresses supply ripple and ground noise in single-supply sensor interfaces. |
| Slew Rate | 4V/µs - supports clean 100kHz full-scale sine-wave output at 2Vpp without distortion. |
Pinout & Package
MAX4132EUA-T is housed in an 8-pin µMAX package (package code U8-1), pin-compatible with industry-standard SO-8 but with 3mm × 3mm footprint and exposed pad for thermal enhancement.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | OUT1 | Amplifier 1 output - drives low-impedance loads directly; rail-to-rail swing supports full-scale analog interface. |
| 2 | IN1− | Inverting input for Amp 1 - matched impedance path required to minimize bias-current-induced offset. |
| 3 | IN1+ | Noninverting input for Amp 1 - accepts signals from 200mV below VEE to 200mV above VCC in rail-to-rail mode. |
| 4 | VEE | Negative supply terminal - tied to GND in single-supply systems; establishes reference for rail-to-rail operation. |
| 5 | VCC | Positive supply terminal - accepts 2.7V–6.5V; requires local 0.1µF ceramic + 1µF bulk bypassing. |
| 6 | IN2+ | Noninverting input for Amp 2 - electrically isolated from Amp 1; enables independent dual-channel signal paths. |
| 7 | IN2− | Inverting input for Amp 2 - shares same bias current characteristics and layout rules as IN1−. |
| 8 | OUT2 | Amplifier 2 output - identical AC/DC performance to OUT1; supports dual-sensor or differential pair conditioning. |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail I/O | Input common-mode range extends 200mV beyond supply rails; output swings within 250mV of either rail into 250Ω - maximizes dynamic range in 3V systems. |
| Low quiescent current | 1.2mA max per amplifier across full temperature range - extends battery life in portable instrumentation without sacrificing bandwidth. |
| Unity-gain stable | No external compensation required for gains ≥1 - simplifies design of buffers, followers, and active filters. |
| No phase reversal | Maintains correct polarity even when inputs overdrive beyond rails - prevents latch-up or erroneous ADC readings in transient conditions. |
| High capacitive-load drive | Stable with 160pF loads - directly interfaces with SAR ADC inputs and long PCB traces without added series resistance. |
Applications
| Battery-Powered Instrumentation | Portable Medical Sensors |
|---|---|
Use Scenario: Handheld multimeter front-end amplifying mV-level thermocouple or shunt voltage signals. IC Role / Device Role / Timing Role: Dual-channel precision buffer and level-shifter, converting sensor outputs to ADC-compatible range. Use Value: Rail-to-rail I/O preserves >92% of 3V supply range; 10MHz GBW supports fast sampling without settling delay. | Use Scenario: ECG electrode signal conditioning in wearable patch monitors. IC Role / Device Role / Timing Role: Dual low-noise amplifier for differential lead-off detection and filtered biopotential amplification. Use Value: 22nV/√Hz input noise enables sub-µV signal resolution; 900µA/quiescent current extends 7-day battery life. |
| Data-Acquisition Front-End | Industrial Process Monitoring |
Use Scenario: 12-bit SAR ADC driver in PLC analog input modules with 4–20mA loop receivers. IC Role / Device Role / Timing Role: Dual op amp providing gain, filtering, and rail-to-rail buffering before ADC sampling. Use Value: ±4.7mV max VOS ensures <0.5% full-scale error; 250Ω drive capability matches typical ADC input impedance. | Use Scenario: Temperature and pressure transducer signal conditioning in factory-floor sensors. IC Role / Device Role / Timing Role: Dual-channel amplifier for bridge sensor excitation and differential output amplification. Use Value: 58dB CMRR rejects common-mode noise from 24V DC field wiring; –40°C to +85°C rating ensures reliability in harsh environments. |
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 | Zero-drift architecture; 0.02µV/°C offset drift vs. MAX4132EUA-T's ±2µV/°C; 350kHz GBW vs. 10MHz. | Better DC accuracy for ultra-low-drift sensor bridges; insufficient bandwidth for >10kHz signal chains. | Select OPA2333AIDR only when microvolt-level long-term stability outweighs speed requirements. |
| AD8602ARZ | Higher 10MHz GBW match; 650µA/quiescent current; no guaranteed 250Ω drive spec; 100pF max stable load vs. 160pF. | Lower power draw but reduced robustness driving heavy capacitive loads or low-impedance ADCs. | Choose AD8602ARZ for lower power budgets where load capacitance remains <100pF and output swing margin is acceptable. |
Compared with OPA2333AIDR and AD8602ARZ, MAX4132EUA-T uniquely balances 10MHz bandwidth, 250Ω drive strength, and 160pF capacitive-load stability - making it optimal for high-fidelity, medium-speed data-acquisition channels requiring rail-to-rail operation on 3V supplies.
Availability
MAX4132EUA-T is available at Aetrix Electronics and suitable for battery-powered instrumentation, portable medical sensors, and industrial process monitoring requiring stable component supply across extended temperature ranges and long production lifecycles.
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 precision analog and mixed-signal ICs for demanding industrial, medical, and communications applications.
The MAX4130–MAX4134 family targets low-voltage, single-supply signal-conditioning applications - emphasizing rail-to-rail I/O, low quiescent current, and robust capacitive-load drive for portable and embedded data-acquisition systems.
FAQ
Does MAX4132EUA-T include a shutdown pin?
No, MAX4132EUA-T does not feature a shutdown function. Unlike the MAX4133 (dual with independent SHDN pins) or MAX4131 (single with SHDN), the MAX4132EUA-T is a dual op amp with fixed-enable operation - all pins are signal or supply terminals. Its 8-pin µMAX package contains only two amplifiers, VCC, VEE, and four I/O pins (IN1±, OUT1, IN2±, OUT2). The MAX4132EUA-T draws continuous quiescent current and cannot be externally disabled.
What is the maximum load capacitance MAX4132EUA-T can drive while remaining stable?
MAX4132EUA-T is specified as unity-gain stable with up to 160pF of capacitive load. This value is verified across temperature and supply voltage (2.7V to 6.5V) and applies to both amplifiers. Driving loads exceeding 160pF - such as high-capacitance ADC inputs or long PCB traces - may induce peaking or oscillation unless an isolation resistor (e.g., 10Ω–39Ω) is added in series with the output, as documented in Maxim's Application Note on capacitive-load driving.
Can MAX4132EUA-T operate from a 1.8V supply?
While the absolute minimum recommended supply is +2.7V, MAX4132EUA-T typically functions down to +1.8V per the datasheet's "Minimum Operating Voltage vs. Temperature" curve (Figure MAX4130/34-21). However, performance degrades below 2.7V: gain-bandwidth drops, output swing narrows, and input offset voltage increases. For production designs, Maxim specifies operation only from +2.7V to +6.5V - so MAX4132EUA-T should not be relied upon at 1.8V without full characterization.
What is the input bias current behavior of MAX4132EUA-T near the supply rails?
MAX4132EUA-T uses a composite rail-to-rail input stage with NPN and PNP differential pairs. As the common-mode voltage crosses mid-supply (~VCC/2), the dominant input pair switches, causing input bias current to reverse polarity - reaching ±160nA max across temperature. This transition region is intentionally widened to minimize CMRR degradation. To avoid offset errors, external source impedances at IN+ and IN− must be closely matched, especially in high-gain configurations.
Is MAX4132EUA-T pin-compatible with standard SO-8 op amps?
MAX4132EUA-T uses the 8-pin µMAX package (3mm × 3mm), which shares the same pin count and functional pinout as SO-8 but differs mechanically: µMAX has finer pitch (0.65mm vs. 1.27mm), no gull-wing leads, and an exposed thermal pad. It is not physically or solder-reflow compatible with SO-8 footprints. Layout requires the specific land pattern U8-1 (Maxim drawing 90-0092); direct substitution into SO-8 boards will cause assembly failure.
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:
- Obsolete
- 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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