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Analog Devices Inc./Maxim Integrated MAX4327EUB+T
- Part No.:
- MAX4327EUB+T
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 10-TFSOP, 10-MSOP (0.118", 3.00mm Width)
- Datasheet:
-
MAX4327EUB+T.pdf
- Description:
- IC OPAMP GP 2 CIRCUIT 10UMAX
- Quantity:
- Payment:
- Shipping:
Inventory:1,347
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Product details
Overview
MAX4327EUB+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 5MHz gain-bandwidth, 650µA per amplifier quiescent current, ±2.5mV max input offset voltage (TA = +25°C), and drives 250Ω loads - enabling high-fidelity analog front-ends in battery-powered data-acquisition systems.
For engineers reviewing the MAX4327EUB+T datasheet, MAX4327EUB+T pinout, MAX4327EUB+T application, or MAX4327EUB+T equivalent, key selection criteria include shutdown functionality (25µA mode), µMAX-10 package compatibility, rail-to-rail swing at 2.4V–6.5V supply, and verified capacitive-load stability up to 500pF.
Technical Context
The MAX4327EUB+T implements a bipolar-input stage with complementary NPN/PNP differential pairs to achieve rail-to-rail input common-mode range (VEE to VCC) and output swing within 350mV of rails under 250Ω load. Its unity-gain-stable architecture supports capacitive loads up to 500pF without external compensation.
Each amplifier features independent shutdown control (SHDN1/SHDN2), reducing supply current to ≤60µA per channel when disabled while placing outputs in high-impedance state - critical for power-gated multi-channel sensor interfaces and portable instrumentation.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Gain-Bandwidth Product | 5MHz - enables stable closed-loop operation up to 100kHz with gain ≥50, suitable for anti-aliasing and post-ADC buffering. |
| Supply Voltage Range | 2.4V to 6.5V single supply - supports direct interfacing with Li-ion, 3.3V, and 5V logic domains without level-shifting. |
| Quiescent Current | 725µA per amplifier (typ @ 5V) - allows continuous operation in sub-1mA system power budgets. |
| Input Offset Voltage | ±2.5mV max (TA = +25°C) - ensures <0.1% gain error in 12-bit precision signal chains with 2.5V full-scale. |
| Output Drive | 250Ω load drive capability - sustains rail-to-rail swing into typical ADC input impedances and active filter stages. |
| Shutdown Current | ≤60µA per amplifier (max @ TA = +85°C) - enables dynamic channel disabling in multi-sensor nodes without PCB layout changes. |
| Capacitive Load Stability | Stable with ≤500pF - eliminates need for isolation resistors when driving ADC sample-hold inputs or long PCB traces. |
Pinout & Package
The MAX4327EUB+T is housed in a 10-pin µMAX (uMAX) package - 3.0mm × 3.0mm body, 0.5mm pitch, exposed pad for thermal enhancement. Pin 1 marked with dot; pin count confirmed per Maxim package drawing 21-0061.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | OUT1 | Amplifier 1 output - rail-to-rail swing, high-impedance during SHDN1 assert. |
| 2 | IN1− | Inverting input of Amp1 - matched bias current path; requires impedance balancing vs IN1+ for offset minimization. |
| 3 | IN1+ | Noninverting input of Amp1 - rail-to-rail common-mode range (VEE to VCC); accepts signals down to ground in single-supply configs. |
| 4 | VEE | Negative supply / ground reference - shared return for both amplifiers and shutdown logic. |
| 5 | VCC | Positive supply - bypass with 0.1µF ceramic + 1µF tantalum directly at pin for high-frequency PSRR. |
| 6 | IN2+ | Noninverting input of Amp2 - electrically isolated from Amp1; supports independent signal paths. |
| 7 | IN2− | Inverting input of Amp2 - same bias current behavior as IN1−; polarity reversal near VCC/2 must be compensated. |
| 8 | OUT2 | Amplifier 2 output - identical drive strength and swing to OUT1; no crosstalk above 135dB (f = 1kHz). |
| 9 | SHDN2 | Shutdown control for Amp2 - logic-high or open enables; ≤0.8V disables with 25µA ICC reduction. |
| 10 | SHDN1 | Shutdown control for Amp1 - independent of SHDN2; enables per-channel power gating in multi-function analog blocks. |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail I/O | Input CMVR = VEE to VCC and output swing to within 350mV of rails at 250Ω load - preserves dynamic range in 3.3V systems. |
| Independent dual shutdown | SHDN1/SHDN2 pins disable respective amplifiers without affecting the other - enables asymmetric power management in sensor fusion designs. |
| Low input offset drift | ±2µV/°C tempco - maintains calibration integrity across −40°C to +85°C industrial temperature range. |
| No phase reversal | Input overdrive beyond rails does not invert output polarity - prevents latch-up or false triggering in comparator-like configurations. |
| Unity-gain stability | Stable with ≥250pF capacitive load and up to 500pF with minor peaking - simplifies anti-aliasing filter integration. |
Applications
| Battery-Powered Data Acquisition | Portable Instrumentation |
|---|---|
Use Scenario: Continuous 12-bit sampling of thermocouple and RTD sensors in handheld multimeters powered by two AA cells. IC Role / Device Role / Timing Role: Dual op-amp performs cold-junction compensation and programmable gain amplification before SAR ADC conversion. Use Value: 650µA per amplifier enables >100-hour battery life; rail-to-rail I/O captures full sensor voltage range without supply boosting. | Use Scenario: Signal conditioning for MEMS microphone and accelerometer in compact IoT edge node with strict size constraints. IC Role / Device Role / Timing Role: One amplifier buffers mic output; second conditions accelerometer analog output - both independently shut down between wake cycles. Use Value: µMAX-10 footprint (3×3mm) saves board space; shutdown reduces idle current to <130µA for both channels combined. |
| Low-Voltage PA Bias Control | RSSI Signal Processing |
Use Scenario: Closed-loop bias adjustment of RF power amplifier in 3.3V LTE module to maintain linearity across temperature. IC Role / Device Role / Timing Role: Precision op-amp compares sensed PA current against reference and drives gate voltage via DAC feedback loop. Use Value: ±2.5mV offset ensures <±0.5dB gain error; 5MHz GBW supports fast correction response to PA thermal drift. | Use Scenario: Logarithmic conversion of received signal strength in 2.4GHz Wi-Fi receiver front-end. IC Role / Device Role / Timing Role: Dual op-amp configures transdiode circuit for wide-dynamic-range RSSI detection (−70dBm to −10dBm). Use Value: Rail-to-rail input accepts detector diode output near ground; 250Ω drive capability interfaces directly with ADC reference buffer. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual, low-power, rail-to-rail op amp applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| AD8602ARMZ-REEL | FEMTOAMP input bias (1pA), lower noise (12nV/√Hz), but 1.2mA ICC and no shutdown - higher power, no power-gating. | Preferred for ultra-high-impedance sensor interfaces (e.g., pH electrodes); unsuitable for battery-critical designs. | Select AD8602ARMZ-REEL only when input bias current <10pA is mandatory and shutdown is unnecessary. |
| TSV912IDT | Lower cost, 1.1MHz GBW, 160µA ICC, rail-to-rail I/O, but no shutdown and ±4.5mV VOS - reduced speed and accuracy. | Suitable for cost-sensitive consumer-grade signal conditioning where 5MHz bandwidth is not required. | Choose TSV912IDT for non-critical, high-volume applications where power and precision are secondary to BOM cost. |
Compared with AD8602ARMZ-REEL and TSV912IDT, the MAX4327EUB+T uniquely balances 5MHz bandwidth, 650µA quiescent current, independent dual shutdown, and ±2.5mV offset - making it optimal for portable, multi-channel, battery-constrained precision analog systems requiring dynamic power control.
Availability
MAX4327EUB+T is available at Aetrix Electronics and suitable for battery-powered instrumentation, portable medical devices, and industrial sensor nodes requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for MAX4327EUB+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 MAX4322/MAX4323/MAX4326/MAX4327/MAX4329 family targets low-voltage, rail-to-rail signal conditioning in space- and power-constrained systems - emphasizing single-supply operation, shutdown flexibility, and robust capacitive-load drive.
FAQ
What is the operating temperature range for the MAX4327EUB+T?
The MAX4327EUB+T is specified for operation from −40°C to +85°C. This industrial temperature range is validated across all electrical parameters including input offset voltage (±6.0mV max), CMRR (≥54dB), and shutdown current (≤70µA per amplifier), ensuring reliable performance in embedded and portable equipment environments.
Does the MAX4327EUB+T support dual-supply operation?
Yes, the MAX4327EUB+T operates from dual supplies of ±1.2V to ±3.25V, in addition to single supplies from 2.4V to 6.5V. The rail-to-rail input common-mode range extends from VEE to VCC in both configurations, and output swing remains within 350mV of either rail - enabling flexible design in mixed-signal systems with split analog domains.
How does the shutdown feature work on the MAX4327EUB+T?
The MAX4327EUB+T provides independent shutdown control via SHDN1 and SHDN2 pins. Pulling either pin ≤0.8V disables its corresponding amplifier, reducing supply current to ≤60µA and placing the output in high-impedance state. Leaving the pin open or pulling ≥2.0V enables normal operation - internal 1µA pull-up ensures default-enable behavior if unconnected.
Can the MAX4327EUB+T drive an ADC input directly?
Yes, the MAX4327EUB+T can directly drive SAR and sigma-delta ADC inputs. Its 250Ω load drive capability, rail-to-rail output swing, and stability with up to 500pF capacitive load eliminate the need for external isolation resistors. Verified performance includes <0.01% settling to 16-bit accuracy in <2.0µs (AV = +1, 2V step), matching typical ADC acquisition windows.
What package type is used for the MAX4327EUB+T?
The MAX4327EUB+T uses the 10-pin µMAX (uMAX) package - a 3.0mm × 3.0mm surface-mount outline with 0.5mm lead pitch and exposed thermal pad. This compact, thermally enhanced package is pin-compatible with industry-standard uSOP-10 footprints and supports reflow soldering per JEDEC J-STD-020.
MAX4327EUB+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:
- Active
- Amplifier Type:
- General Purpose
- Number of Circuits:
- 2
- Output Type:
- Rail-to-Rail
- Slew Rate:
- 2V/µs
- Gain Bandwidth Product:
- 5 MHz
- -3db Bandwidth:
- -
- Current - Input Bias:
- 50 nA
- Voltage - Input Offset:
- 1.2 mV
- Current - Supply:
- 725µA (x2 Channels)
- Current - Output / Channel:
- 50 mA
- Voltage - Supply Span (Min):
- 2.4 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
MAX4327EUB+T FAQ
1.How can I place an order for MAX4327EUB+T through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX4327EUB+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 MAX4327EUB+T reliable?
The price and inventory of MAX4327EUB+T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX4327EUB+T is usually 5 days.
3.What payment methods are accepted for MAX4327EUB+T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX4327EUB+T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX4327EUB+T?
MAX4327EUB+T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX4327EUB+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 MAX4327EUB+T?
For technical support, including MAX4327EUB+T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX4327EUB+T requirements.
6.How does Aetrix verify that MAX4327EUB+T is sourced from the original manufacturer or authorized distributors?
All MAX4327EUB+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 MAX4327EUB+T meets industry standards.
7.What is the process for return or replacement of MAX4327EUB+T?
All MAX4327EUB+T units undergo pre-shipment inspection (PSI). If there is an issue with MAX4327EUB+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 MAX4327EUB+T part is unused and in its original packaging.
Return procedure for MAX4327EUB+T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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