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Analog Devices Inc./Maxim Integrated MAX4329ESD+T
- Part No.:
- MAX4329ESD+T
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 14-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
MAX4329ESD+T.pdf
- Description:
- IC OPAMP GP 4 CIRCUIT 14SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:1,963
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Product details
Overview
MAX4329ESD+T from Maxim Integrated is a quad, rail-to-rail input/output operational amplifier optimized for precision low-voltage data-acquisition systems. It delivers 5MHz gain-bandwidth, 650µA per amplifier quiescent current, ±700µV input offset voltage (typ), and drives 250Ω loads - enabling high-fidelity signal conditioning in battery-powered portable instrumentation.
For engineers reviewing the MAX4329ESD+T datasheet, MAX4329ESD+T pinout, MAX4329ESD+T application, or MAX4329ESD+T equivalent, key selection criteria include its 14-pin SO package, dual independent shutdown control (SHDN1/SHDN2), rail-to-rail operation from 2.4V to 6.5V single supply, and guaranteed performance across –40°C to +85°C.
Technical Context
The MAX4329ESD+T implements a bipolar-input stage with complementary NPN/PNP differential pairs to achieve rail-to-rail common-mode input range (VEE to VCC) and output swing within 350mV of either rail under 500Ω load. Its unity-gain stability extends to 500pF capacitive loads without external compensation.
Each of its four amplifiers features independent shutdown control (pins 1 & 13), allowing selective power gating. The device operates from single supplies (2.4V–6.5V) or dual supplies (±1.2V–±3.25V), with shutdown current reduced to ≤60µA per amplifier when SHDN is pulled low.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Gain-Bandwidth Product | 5MHz - supports stable closed-loop operation up to 100kHz at AV = +100 with adequate phase margin. |
| Supply Current per Amplifier | 650µA at VCC = 2.4V - enables ultra-low-power operation in always-on sensor front-ends. |
| Input Offset Voltage | ±700µV (typ) at TA = +25°C - ensures <1mV total error in 12-bit ADC driver applications at room temperature. |
| Output Voltage Swing | VOL − VEE ≤ 300mV, VCC − VOH ≤ 400mV (RL = 250Ω) - delivers >90% of full-scale dynamic range with 3V supply. |
| Common-Mode Input Range | VEE to VCC - accepts input signals from ground to supply rail, eliminating level-shifting in single-supply systems. |
| Shutdown Supply Current | ≤60µA per amplifier - reduces system standby power by >90% versus active mode. |
| Slew Rate | 2V/µs - supports clean 100kHz sine-wave output with <1% distortion into 250Ω. |
Pinout & Package
The MAX4329ESD+T is housed in a 14-pin SO (Small Outline) package with standard 0.150" body width and 0.050" lead pitch. Pin 1 is located at the top-left corner adjacent to the index notch.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | SHDN1 | Active-low shutdown control for amplifier 1; floating or high enables operation. |
| 2 | IN1− | Inverting input of amplifier 1; matched impedance critical for bias-current cancellation. |
| 3 | IN1+ | Noninverting input of amplifier 1; rail-to-rail common-mode range supports direct sensor interfacing. |
| 4 | VEE | Negative supply pin; connected to ground in single-supply configurations. |
| 5 | OUT1 | Amplifier 1 output; capable of sourcing/sinking ≥20mA into 250Ω load. |
| 6 | OUT2 | Amplifier 2 output; electrically isolated from OUT1 for multi-channel signal routing. |
| 7 | IN2+ | Noninverting input of amplifier 2; identical DC/AC specs to IN1+. |
| 8 | IN2− | Inverting input of amplifier 2; polarity reversal avoided even with overdriven inputs. |
| 9 | IN3− | Inverting input of amplifier 3; shares same internal architecture as IN1−/IN2−. |
| 10 | IN3+ | Noninverting input of amplifier 3; supports common-mode voltages down to VEE. |
| 11 | VCC | Positive supply pin; requires 0.1µF ceramic + 1µF bulk bypassing for stability. |
| 12 | OUT3 | Amplifier 3 output; rail-to-rail swing enables full utilization of 3V ADC reference. |
| 13 | SHDN2 | Active-low shutdown control for amplifiers 3 and 4; independent of SHDN1. |
| 14 | OUT4 | Amplifier 4 output; fully specified for driving capacitive loads up to 500pF. |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail I/O | Enables direct interface with 3V microcontrollers and 12-bit ADCs without level-shifting circuitry. |
| Independent dual shutdown | Allows selective power-down of channel pairs (1&2 vs 3&4), optimizing power in multi-sensor systems. |
| 500pF capacitive-load stability | Eliminates need for isolation resistors when driving ADC input capacitance or long PCB traces. |
| No phase reversal on overdrive | Prevents latch-up or erroneous output states during transient input excursions beyond rails. |
| Low 700µV offset (typ) | Reduces calibration overhead in precision analog front-ends for medical or industrial sensors. |
Applications
| Battery-Powered Portable Instruments | Multi-Channel Data Acquisition |
|---|---|
Use Scenario: Handheld multimeter measuring mV-level thermocouple outputs while operating from two AA cells. IC Role / Device Role / Timing Role: Precision signal-conditioning amplifier buffering and gain-setting stage before 16-bit SAR ADC. Use Value: Rail-to-rail input accepts 0–100mV thermocouple signal directly; 650µA quiescent current extends battery life to >500 hours. | Use Scenario: Industrial PLC module digitizing four 4–20mA current-loop sensor inputs simultaneously. IC Role / Device Role / Timing Role: Quad op-amp providing isolated I/V conversion and filtering for each channel. Use Value: Independent SHDN1/SHDN2 pins allow dynamic power management - disabling unused channels cuts system supply current by 50%. |
| RSSI Signal Conditioning | PA Bias Control in RF Modules |
Use Scenario: Cellular base station receiver measuring received signal strength across multiple frequency bands. IC Role / Device Role / Timing Role: Logarithmic amplifier front-end converting RF detector diode output to linear voltage. Use Value: 5MHz GBW and 2V/µs slew rate preserve fast RSSI envelope dynamics; ±700µV offset minimizes measurement drift. | Use Scenario: GaN power amplifier module requiring precise, temperature-stable bias voltage tuning. IC Role / Device Role / Timing Role: Low-drift buffer generating adjustable gate bias from DAC output. Use Value: Rail-to-rail output swings to within 300mV of ground and 400mV of VCC, enabling full 0–5V DAC range utilization. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar quad rail-to-rail op amp applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TLV2464IDR | Lower GBW (6.4MHz), higher ICC (600µA per amp), no shutdown pins | Lacks independent shutdown; unsuitable for dynamic channel power gating | Preferred where higher bandwidth is critical and shutdown is unnecessary |
| AD8604ARUZ | Higher precision (60µV VOS), lower drive capability (15mA), no shutdown | Optimized for ultra-low-offset applications, not for driving 250Ω loads | Chosen when nanovolt-level offset stability outweighs output drive and power control needs |
Compared with TLV2464IDR and AD8604ARUZ, the MAX4329ESD+T uniquely combines quad-channel integration, independent dual shutdown, 250Ω load drive, and rail-to-rail operation in a single 14-pin SO package - making it optimal for space-constrained, battery-sensitive multi-sensor systems requiring selective power management.
Availability
MAX4329ESD+T is available at Aetrix Electronics and suitable for battery-powered instrumentation, multi-channel data acquisition, and RF signal conditioning requiring stable component supply and guaranteed long-term availability.
Supply support for MAX4329ESD+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 was engineered specifically for low-voltage, rail-to-rail signal conditioning in portable and power-sensitive systems - emphasizing quiescent current efficiency, input/output voltage range, and robustness in single-supply configurations.
FAQ
What is the operating supply voltage range for the MAX4329ESD+T?
The MAX4329ESD+T operates from a single supply of 2.4V to 6.5V or dual supplies of ±1.2V to ±3.25V. This wide range allows direct compatibility with common battery chemistries (e.g., two alkaline or Li-ion cells) and legacy ±3V systems. Operation below 2.4V is not guaranteed, and absolute maximum supply is 7.5V (VCC − VEE).
Does the MAX4329ESD+T support rail-to-rail input and output operation?
Yes, the MAX4329ESD+T supports true rail-to-rail input common-mode voltage range (VEE to VCC) and rail-to-rail output voltage swing. At VCC = 3V and RL = 250Ω, the output typically swings from within 300mV of VEE to within 400mV of VCC - delivering >90% of the full supply range for maximum dynamic range in low-voltage systems.
How does the shutdown functionality work on the MAX4329ESD+T?
The MAX4329ESD+T features two independent shutdown pins: SHDN1 (pin 1) controls amplifiers 1 and 2, while SHDN2 (pin 13) controls amplifiers 3 and 4. Pulling either pin low reduces the respective pair's supply current to ≤60µA and places their outputs in high-impedance state. Leaving the pins unconnected or tied high enables normal operation.
Can the MAX4329ESD+T drive a 250Ω load effectively?
Yes, the MAX4329ESD+T is explicitly characterized to drive 250Ω loads with rail-to-rail swing and minimal distortion. At VCC = 5V, it maintains large-signal voltage gain ≥70dB into 250Ω, and its output stage delivers ≥20mA source/sink current - sufficient for direct interface with ADC reference buffers or low-impedance transducer drivers.
What package type is used for the MAX4329ESD+T?
The MAX4329ESD+T is supplied in a 14-pin SO (Small Outline) package with 0.150" body width and standard JEDEC MS-012AC outline. It is RoHS-compliant, Pb-free, and rated for operation from –40°C to +85°C. The package uses gull-wing leads compatible with standard reflow soldering profiles.
MAX4329ESD+T Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Package/Case:
- 14-SOIC (0.154", 3.90mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Amplifier Type:
- General Purpose
- Number of Circuits:
- 4
- 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 (x4 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:
- 14-SOIC
MAX4329ESD+T FAQ
1.How can I place an order for MAX4329ESD+T through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX4329ESD+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 MAX4329ESD+T reliable?
The price and inventory of MAX4329ESD+T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX4329ESD+T is usually 5 days.
3.What payment methods are accepted for MAX4329ESD+T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX4329ESD+T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX4329ESD+T?
MAX4329ESD+T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX4329ESD+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 MAX4329ESD+T?
For technical support, including MAX4329ESD+T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX4329ESD+T requirements.
6.How does Aetrix verify that MAX4329ESD+T is sourced from the original manufacturer or authorized distributors?
All MAX4329ESD+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 MAX4329ESD+T meets industry standards.
7.What is the process for return or replacement of MAX4329ESD+T?
All MAX4329ESD+T units undergo pre-shipment inspection (PSI). If there is an issue with MAX4329ESD+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 MAX4329ESD+T part is unused and in its original packaging.
Return procedure for MAX4329ESD+T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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