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Analog Devices Inc./Maxim Integrated MAX4326EUA+TG075
- Part No.:
- MAX4326EUA+TG075
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-TSSOP, 8-MSOP (0.118", 3.00mm Width)
- Datasheet:
-
MAX4326EUA+TG075.pdf
- Description:
- IC OPAMP GP 2 CIRCUIT 8UMAX
- Quantity:
- Payment:
- Shipping:
Inventory:2,500
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Product details
Overview
MAX4326EUA+TG075 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 offset voltage (typ), and drives 250Ω loads - enabling high-fidelity analog front-ends in battery-powered data-acquisition systems.
For engineers reviewing the MAX4326EUA+TG075 datasheet, MAX4326EUA+TG075 pinout, MAX4326EUA+TG075 application, or MAX4326EUA+TG075 equivalent, key selection criteria include rail-to-rail I/O swing at 2.4V–6.5V supply, shutdown capability (not present in MAX4326), unity-gain stability with ≤500pF capacitive load, and µMAX-8 package compatibility with space-constrained PCB layouts.
Technical Context
The MAX4326EUA+TG075 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 12mV of rails (RL = 250Ω). Its 5MHz GBWP and 2V/µs slew rate support fast settling (2.0µs to 0.01%) without phase reversal on overdriven inputs.
Unlike the MAX4323/MAX4327 variants, MAX4326 lacks shutdown control; all pins are active at power-up. The device operates across -40°C to +85°C and maintains DC accuracy with ±6mV max input offset voltage over temperature and 60dB min CMRR at full operating range.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Gain-Bandwidth Product | 5MHz - supports stable unity-gain operation up to 5MHz, suitable for anti-aliasing filters and sensor amplification in 10ksps data-acquisition systems. |
| Supply Voltage Range | 2.4V to 6.5V single supply - enables direct interface with Li-ion (3.0–4.2V), 3.3V logic, and 5V microcontrollers without level-shifting. |
| Quiescent Current | 650µA per amplifier (typ at 2.4V) - allows dual-channel amplification in sub-1mA system power budgets for portable instrumentation. |
| Input Offset Voltage | ±700µV (typ), ±6mV (max over temp) - ensures <0.1% gain error in 12-bit ADC front-ends with 1V full-scale reference. |
| Output Swing | VOL = 12mV above VEE, VOH = 12mV below VCC (RL = 250Ω) - delivers true rail-to-rail dynamic range for maximum ADC utilization in single-supply designs. |
| Capacitive Load Drive | Stable with ≤500pF - eliminates need for isolation resistors when driving ADC input capacitance or long traces in compact layouts. |
| Common-Mode Rejection | 59dB min (–40°C to +85°C) - suppresses supply noise and ground bounce in noisy embedded environments. |
Pinout & Package
The MAX4326EUA+TG075 is housed in an 8-pin µMAX package (3.0mm × 3.0mm, 0.8mm height), pin-compatible with industry-standard SO-8 and µMAX footprints. This thermally enhanced, lead-free package supports reflow soldering and provides improved thermal resistance vs. SOIC.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (OUT1) | Amplifier 1 output | Delivers rail-to-rail buffered signal; capable of sourcing/sinking ≥20mA into 250Ω load. |
| 2 (IN1–) | Amplifier 1 inverting input | Differential node for feedback networks; input bias current ±180nA (max) requires impedance matching to minimize offset. |
| 3 (IN1+) | Amplifier 1 noninverting input | High-impedance sensor interface node; rail-to-rail common-mode range (VEE to VCC) enables direct connection to resistive sensors. |
| 4 (VEE) | Negative supply / ground | Reference for single-supply operation; must be bypassed with 0.1µF ceramic + 1µF tantalum capacitor near pin. |
| 5 (VCC) | Positive supply | Accepts 2.4V–6.5V; internal regulation ensures stable bias under supply ripple; bypassing critical for PSRR >62dB. |
| 6 (IN2+) | Amplifier 2 noninverting input | Independent channel input; identical specs to IN1+; enables dual-sensor conditioning or differential pair amplification. |
| 7 (IN2–) | Amplifier 2 inverting input | Matches IN1– characteristics; channel separation >135dB prevents crosstalk in multi-channel acquisition. |
| 8 (OUT2) | Amplifier 2 output | Electrically isolated from OUT1; supports independent gain configurations without interaction. |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail I/O swing | Enables full dynamic range utilization of 12-bit+ ADCs powered from same 3.3V rail, eliminating level-shifting circuitry. |
| Unity-gain stability | Operates stably with capacitive loads up to 500pF - simplifies anti-aliasing filter design and reduces component count in sensor interfaces. |
| No phase reversal | Prevents output latch-up during input overdrive (e.g., ESD transients or sensor saturation), ensuring robust system behavior without external clamping. |
| Low input bias current | ±180nA max allows high-impedance source interfacing (e.g., pH electrodes, thermistors) without significant voltage drop or offset drift. |
| High channel separation | 135dB minimizes inter-channel interference in dual-signal paths such as stereo audio preamps or differential sensor pairs. |
Applications
| Battery-Powered Data Acquisition | Portable Medical Instrumentation |
|---|---|
Use Scenario: Signal conditioning for 12-bit SAR ADC in handheld multimeter with 3.3V Li-ion supply. IC Role / Device Role / Timing Role: Dual-channel op amp providing gain, filtering, and drive for two independent measurement channels (voltage/current). Use Value: Rail-to-rail output swing maximizes ADC code usage; 650µA per amplifier keeps total analog section current under 1.5mA for >100hr battery life. | Use Scenario: Front-end amplification for ECG electrode signals in wearable patch monitor. IC Role / Device Role / Timing Role: First-stage instrumentation amplifier (configured as difference amp) rejecting common-mode noise while preserving low-frequency biopotential fidelity. Use Value: ±700µV offset ensures baseline stability over temperature; 5MHz GBWP supports >1kHz bandwidth for R-wave detection without phase distortion. |
| Low-Voltage Sensor Interface | Industrial Process Monitoring |
Use Scenario: Amplifying output of 10kΩ NTC thermistor in smart thermostat operating from 3.0V coin cell. IC Role / Device Role / Timing Role: Noninverting amplifier with matched input impedances to cancel bias-current-induced offset. Use Value: Rail-to-rail input range accepts thermistor divider outputs from 0–3.0V; low quiescent current extends battery life beyond 2 years. | Use Scenario: Signal conditioning for 4–20mA loop-powered pressure transmitter with local display. IC Role / Device Role / Timing Role: Dual op amp implementing voltage-to-current conversion and display driver buffer. Use Value: Dual-channel integration reduces board area by 40% vs. discrete solutions; 250Ω drive capability directly sources LCD bias current without external transistors. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual, rail-to-rail I/O op amp applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX4327EUB+ | Dual-channel with independent shutdown pins (SHDN1/SHDN2); 10-pin µMAX; 25µA shutdown current per amp. | Required where dynamic power gating of individual channels is needed (e.g., time-multiplexed sensor arrays). | Select MAX4327EUB+ only if per-channel shutdown is mandatory; otherwise MAX4326EUA+TG075 offers lower cost and smaller footprint. |
| AD8602ARMZ-REEL | Single-supply, rail-to-rail I/O; 8MHz GBWP; 1.2mA quiescent current; SO-8 package; no shutdown. | Higher bandwidth and drive strength but consumes nearly double the supply current - unsuitable for ultra-low-power designs. | Choose AD8602ARMZ-REEL when >5MHz bandwidth or higher output current (>30mA) is required; MAX4326EUA+TG075 preferred for sub-1mA power envelopes. |
Compared with MAX4327EUB+, MAX4326EUA+TG075 saves board space and cost by omitting shutdown logic, while matching DC precision and AC performance for always-on signal chains; versus AD8602ARMZ-REEL, it achieves 46% lower quiescent current at equivalent rail-to-rail functionality, extending battery runtime in portable systems.
Availability
MAX4326EUA+TG075 is available at Aetrix Electronics and suitable for battery-powered instrumentation, portable medical devices, and industrial process monitoring requiring stable component supply and guaranteed long-term availability.
Supply support for MAX4326EUA+TG075 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 space- and power-constrained systems - emphasizing DC accuracy, speed, and supply flexibility without compromising robustness.
FAQ
Does MAX4326EUA+TG075 include a shutdown feature?
No, MAX4326EUA+TG075 does not incorporate a shutdown function. Unlike the MAX4323/MAX4327 variants, it has no SHDN pin and remains fully operational whenever powered. For applications requiring power gating, consider MAX4327EUB+ which provides independent shutdown control for each amplifier channel.
What is the maximum capacitive load the MAX4326EUA+TG075 can drive stably?
The MAX4326EUA+TG075 is unity-gain stable with capacitive loads up to 500pF, as confirmed in the datasheet's Typical Operating Characteristics (Figure 4). Driving larger loads requires an isolation resistor (e.g., 39Ω) in series with the output to maintain phase margin and prevent oscillation.
Can MAX4326EUA+TG075 operate from a 2.4V single supply?
Yes, MAX4326EUA+TG075 is fully specified for 2.4V to 6.5V single-supply operation. At 2.4V, it maintains rail-to-rail input common-mode range (0V to 2.4V) and delivers output swing within 12mV of both rails into 250Ω, enabling accurate signal processing in ultra-low-voltage systems like energy-harvesting sensors.
Is MAX4326EUA+TG075 pin-compatible with standard SO-8 packages?
Yes, MAX4326EUA+TG075 uses the 8-pin µMAX package with 0.050" (1.27mm) lead pitch, matching SO-8 footprint dimensions (3.0mm × 3.0mm body, 5.0mm × 6.2mm overall). PCB land patterns designed for SO-8 are mechanically compatible, though thermal vias and solder paste stencil adjustments may optimize µMAX reflow yield.
What is the typical input offset voltage of MAX4326EUA+TG075 at room temperature?
The typical input offset voltage of MAX4326EUA+TG075 is ±700µV at TA = +25°C, with a maximum of ±2.5mV across the full –40°C to +85°C temperature range. This level of DC precision supports 12-bit ADC accuracy without trimming in most sensor interface applications.
MAX4326EUA+TG075 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Package/Case:
- 8-TSSOP, 8-MSOP (0.118", 3.00mm Width)
- Packaging:
- Bulk
- 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:
- 8-µMAX
MAX4326EUA+TG075 FAQ
1.How can I place an order for MAX4326EUA+TG075 through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX4326EUA+TG075 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 MAX4326EUA+TG075 reliable?
The price and inventory of MAX4326EUA+TG075 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX4326EUA+TG075 is usually 5 days.
3.What payment methods are accepted for MAX4326EUA+TG075?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX4326EUA+TG075 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX4326EUA+TG075?
MAX4326EUA+TG075 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX4326EUA+TG075 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 MAX4326EUA+TG075?
For technical support, including MAX4326EUA+TG075 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX4326EUA+TG075 requirements.
6.How does Aetrix verify that MAX4326EUA+TG075 is sourced from the original manufacturer or authorized distributors?
All MAX4326EUA+TG075 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 MAX4326EUA+TG075 meets industry standards.
7.What is the process for return or replacement of MAX4326EUA+TG075?
All MAX4326EUA+TG075 units undergo pre-shipment inspection (PSI). If there is an issue with MAX4326EUA+TG075, 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 MAX4326EUA+TG075 part is unused and in its original packaging.
Return procedure for MAX4326EUA+TG075:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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