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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 CIRC 10UMAX/USOP
- Quantity:
- Payment:
- Shipping:
Inventory:4,086
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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, ±700µV input offset voltage (typ), and 25µA shutdown current - enabling high-accuracy amplification in battery-powered data-acquisition systems.
For engineers reviewing the MAX4327EUB-T datasheet, MAX4327EUB-T pinout, MAX4327EUB-T application, or MAX4327EUB-T equivalent, this page provides verified electrical parameters, µMAX-10 package mapping, dual-channel shutdown control behavior, and design-critical load-driving capability up to 250Ω with rail-to-rail swing.
Technical Context
The MAX4327EUB-T integrates two independent high-speed op-amps sharing a common supply domain but featuring separate SHDN1/SHDN2 control inputs. Its bipolar input stage combines NPN and PNP differential pairs to achieve rail-to-rail input common-mode range (VEE to VCC) and output swing within 350mV of rails under 500Ω load.
Each amplifier is unity-gain stable with capacitive loads up to 500pF and supports operation from 2.4V to 6.5V single supply (or ±1.2V to ±3.25V dual). Shutdown mode reduces ICC to 25µA per channel while placing outputs in high-impedance state - critical for power-gated sensor front-ends.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Gain-Bandwidth Product | 5MHz - enables stable closed-loop gain ≥10 at 500kHz for anti-aliasing filter interfaces. |
| Supply Current per Amplifier | 650µA at VCC = 2.4V - supports >100-hour runtime on coin-cell batteries in portable instrumentation. |
| Input Offset Voltage | ±700µV (typ) - ensures ≤3.5mV total error in 5V full-scale 12-bit ADC driver applications. |
| Rail-to-Rail Output Swing | Within 350mV of VCC/VEE into 500Ω - preserves dynamic range in 3V single-supply systems driving resistive loads. |
| Shutdown Current | 25µA per amplifier - allows selective channel disable without PCB layout changes in multi-sensor nodes. |
| Capacitive Load Stability | Stable with up to 500pF - eliminates need for isolation resistors when driving ADC input capacitance or long traces. |
| Slew Rate | 2V/µs - supports 10-bit accuracy for 100kHz full-scale sine wave output without distortion. |
Pinout & Package
The MAX4327EUB-T is housed in a 10-pin µMAX (uMAX) package - a miniature 3mm × 3mm surface-mount outline with exposed thermal pad, compatible with standard SOIC-14 reflow profiles but occupying ~40% less board area.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | OUT1 | Amplifier 1 output - drives external load directly; high-impedance during SHDN1 assertion. |
| 2 | IN1− | Inverting input for Amp1 - matched impedance required with IN1+ to minimize bias-current-induced offset. |
| 3 | IN1+ | Noninverting input for Amp1 - accepts signals from VEE to VCC with no phase reversal on overdrive. |
| 4 | VEE | Negative supply / ground reference - must be bypassed with 0.1µF ceramic + 1µF bulk capacitor. |
| 5 | VCC | Positive supply - operates from 2.4V–6.5V; supplies both amplifiers and internal bias circuitry. |
| 6 | IN2+ | Noninverting input for Amp2 - independently configurable; shares VCC/VEE with Amp1. |
| 7 | IN2− | Inverting input for Amp2 - polarity-sensitive; mismatched source impedances cause differential offset. |
| 8 | OUT2 | Amplifier 2 output - electrically isolated from OUT1; enables dual-path signal conditioning. |
| 9 | SHDN1 | Shutdown control for Amp1 - logic-low (≤0.8V) disables Amp1; floating or high enables. |
| 10 | SHDN2 | Shutdown control for Amp2 - independent of SHDN1; allows asymmetric power gating per channel. |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail I/O | Enables full 0–VCC input range and near-rail output swing in 3V systems - maximizes ADC utilization without level-shifting. |
| Dual independent shutdown | Per-amplifier SHDN pins allow selective channel disable - essential for dynamic power management in multi-sensor DAQ. |
| 5MHz GBW at 650µA | Delivers 10× higher bandwidth-per-mA than legacy low-power op-amps - suitable for active filtering up to 100kHz. |
| No phase reversal on overdrive | Prevents latch-up or erroneous output states when inputs exceed common-mode range - improves system robustness. |
| Unity-gain stable to 500pF | Drives ADC input capacitance and PCB trace capacitance directly - eliminates series resistor compensation. |
Applications
| Battery-Powered Data Acquisition | Portable Instrumentation |
|---|---|
Use Scenario: Simultaneous analog sensing of temperature, pressure, and humidity in handheld environmental monitors powered by CR2032 cells. IC Role / Device Role / Timing Role: Dual-channel signal conditioner - one amp buffers sensor output, the other drives SAR ADC input with rail-to-rail swing. Use Value: 25µA shutdown per channel extends battery life by >30% during idle intervals without sacrificing wake-up latency. | Use Scenario: Low-noise front-end for portable oscilloscope probes with 10MHz bandwidth requirement and 3.3V supply constraint. IC Role / Device Role / Timing Role: High-speed buffer isolating probe tip from ADC input - maintains signal integrity while driving 10pF+ trace capacitance. Use Value: 2V/µs slew rate and 5MHz GBW preserve rise time <350ns for 10%–90% transitions in 10MHz square waves. |
| PA Bias Control in RF Modules | Low-Voltage Sensor Signal Conditioning |
Use Scenario: Closed-loop bias voltage generation for GaAs FET power amplifiers in IoT cellular transceivers operating from 3.6V Li-ion. IC Role / Device Role / Timing Role: Precision current-source controller - converts DAC output to stable PA gate voltage with <1mV drift. Use Value: ±700µV offset and 60dB CMRR ensure <0.5% bias error across temperature - critical for EVM compliance. | Use Scenario: Amplifying mV-level thermocouple outputs in industrial wireless sensor nodes with 2.4V minimum supply voltage. IC Role / Device Role / Timing Role: Cold-junction-compensated instrumentation amplifier front-end - rejects common-mode noise on long sensor leads. Use Value: Rail-to-rail input range down to VEE allows direct connection to grounded thermocouple junctions without level shifters. |
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 |
|---|---|---|---|
| AD8602ARZ | Higher 10MHz GBW but 1.2mA ICC; no shutdown function; SO-8 only | Requires higher supply current; unsuitable for duty-cycled sensor nodes needing ultra-low sleep current | Select when bandwidth >5MHz is mandatory and shutdown is not required |
| TSV912IDT | Lower 8MHz GBW; 850µA ICC; shutdown available only on TSV912IYDT variant; different pinout | Not pin-compatible; requires PCB redesign; lower drive strength into 250Ω loads | Select when cost sensitivity outweighs layout reuse and 25µA shutdown is noncritical |
Compared with AD8602ARZ and TSV912IDT, the MAX4327EUB-T uniquely balances 5MHz bandwidth, 25µA shutdown, dual independent control, and µMAX-10 compactness - making it optimal for space-constrained, battery-operated dual-channel signal chains where per-channel power gating matters.
Availability
MAX4327EUB-T is available at Aetrix Electronics and suitable for battery-powered data acquisition, portable instrumentation, and low-voltage sensor signal conditioning requiring stable component supply across extended 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 and mixed-signal ICs for demanding industrial, medical, and communications applications.
The MAX432x family targets low-voltage, rail-to-rail signal conditioning in portable and energy-conscious systems - emphasizing micropower operation, wide supply range, and robust input/output stages.
FAQ
What is the maximum capacitive load the MAX4327EUB-T can drive stably?
The MAX4327EUB-T is unity-gain stable with capacitive loads up to 500pF without external compensation. This specification is verified across temperature and supply voltage ranges per the manufacturer's AC Electrical Characteristics table. Driving larger loads may require an isolation resistor (e.g., 39Ω) in series with the output, as demonstrated in Figure 6 of the MAX4327EUB-T datasheet. The 500pF limit applies to each amplifier independently.
Does the MAX4327EUB-T support dual-supply operation?
Yes, the MAX4327EUB-T operates from dual supplies ranging from ±1.2V to ±3.25V, in addition to its primary single-supply range of 2.4V to 6.5V. When using dual supplies, VEE connects to the negative rail and VCC to the positive rail. The rail-to-rail input common-mode range extends from VEE to VCC, and output swing remains within 350mV of either rail under 500Ω load - preserving performance in split-rail configurations like audio line drivers or bipolar sensor interfaces.
How does shutdown mode affect the output state of the MAX4327EUB-T?
When SHDN1 or SHDN2 is pulled low (≤0.8V), the corresponding amplifier enters shutdown mode: supply current drops to 25µA, and its output is placed in a high-impedance state - effectively disconnecting it from the load. The output does not short to rail or clamp; it floats. This behavior is confirmed in the Applications Information section and Figures 11–12 of the MAX4327EUB-T datasheet. Both channels can be controlled independently.
What is the typical input offset voltage of the MAX4327EUB-T at room temperature?
The typical input offset voltage of the MAX4327EUB-T is ±700µV at TA = +25°C, as specified in the DC Electrical Characteristics table under "MAX432_ESA/MAX4327ESD" package group. This value represents the median measured offset across production lots and is valid for VCC = 5.0V, VEE = 0V, and VCM = 0V. Over the full –40°C to +85°C range, the maximum guaranteed offset is ±3.0mV.
Is the MAX4327EUB-T pin-compatible with other devices in the MAX432x family?
No, the MAX4327EUB-T (µMAX-10) is not pin-compatible with other MAX432x variants. The MAX4322/4323 use SOT23-5/6 or UCSP-6; MAX4326/4329 use SO-8/SO-14. Only the MAX4327ESD (SO-14) shares functional pin equivalence but differs in package size and thermal pad configuration. The µMAX-10 pinout is unique to the MAX4327EUB-T and MAX4327EUD-T variants - confirmed in the Pin Configurations section of the datasheet.
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:
- Obsolete
- 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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