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Analog Devices Inc./Maxim Integrated MAX4127ESD
- Part No.:
- MAX4127ESD
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 14-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
MAX4127ESD.pdf
- Description:
- IC OPAMP GP 2 CIRCUIT 14SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:2,899
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Product details
Overview
MAX4127ESD from Maxim Integrated is a dual, rail-to-rail input/output operational amplifier with 5MHz gain-bandwidth product, 650µA quiescent current per amplifier, ±200µV input offset voltage (max), and integrated shutdown mode reducing supply current to 25µA per amplifier. It operates from +2.7V to +6.5V single supply and drives 250Ω loads - ideal for precision signal conditioning in battery-powered data-acquisition systems.
For engineers reviewing the MAX4127ESD datasheet, MAX4127ESD pinout, MAX4127ESD application, or MAX4127ESD equivalent, key selection criteria include dual-channel rail-to-rail I/O performance at low supply current, verified shutdown functionality, SO-14 package compatibility, and guaranteed operation across –40°C to +85°C industrial temperature range.
Technical Context
The MAX4127ESD implements a composite NPN/PNP rail-to-rail input stage enabling common-mode voltage range from VEE – 0.2V to VCC + 0.2V, with seamless transition near VCC/2 to minimize CMRR degradation. Its unity-gain stable architecture supports closed-loop gains of 1V/V with 5MHz bandwidth and 1.3µs settling time to 0.01%.
Shutdown control is implemented via dedicated SHDN1 and SHDN2 pins that place each amplifier's output in high-impedance state while reducing quiescent current to ≤25µA per channel. The device maintains stability with up to 500pF capacitive loads and delivers rail-to-rail output swing within 25mV of rails into 100kΩ loads.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Gain-Bandwidth Product | 5MHz - enables stable unity-gain operation with sufficient phase margin for precision DC-coupled signal paths |
| Supply Current per Amplifier | 650µA (typ) - supports ultra-low-power operation in portable instrumentation without sacrificing bandwidth |
| Input Offset Voltage | ±200µV (max) - ensures <0.5mV error in 2.5V full-scale sensor interfaces at room temperature |
| Output Voltage Swing | VOL = VEE + 25mV, VOH = VCC – 25mV (RL = 100kΩ) - delivers true rail-to-rail dynamic range for 3.3V ADC drivers |
| Shutdown Current | 25µA per amplifier - reduces system standby power by >96% versus active mode |
| Common-Mode Input Range | VEE – 0.2V to VCC + 0.2V - accepts inputs beyond supply rails for direct connection to transducer outputs |
| Capacitive Load Stability | Stable with 500pF - eliminates need for external isolation resistors in DAC buffer applications |
Pinout & Package
MAX4127ESD is housed in a 14-pin SO (Small Outline) package with exposed pad for thermal enhancement. Pin 1 is OUT1, pin 2 is IN1–, pin 3 is IN1+, pin 4 is VEE, pin 5 is VCC, pin 6 is IN2+, pin 7 is IN2–, pin 8 is OUT2, pin 9 is N.C., pin 10 is SHDN1, pin 11 is N.C., pin 12 is SHDN2, pin 13 is N.C., pin 14 is N.C.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| OUT1, OUT2 | Amplifier outputs | High-impedance during shutdown; rail-to-rail swing into ≥100kΩ loads |
| IN1+, IN2+ | Noninverting inputs | Accept signals from VEE – 0.2V to VCC + 0.2V; low input bias current minimizes offset error |
| IN1–, IN2– | Inverting inputs | Support standard op-amp feedback configurations; matched to noninverting inputs for common-mode rejection |
| VEE | Negative supply / ground reference | Connected to system ground in single-supply operation; defines lower rail for input/output swing |
| VCC | Positive supply | Accepts +2.7V to +6.5V; requires 0.1µF ceramic + 1µF bulk bypassing for stability |
| SHDN1, SHDN2 | Independent shutdown controls | Pull low (<0.8V) to disable respective amplifier; high-impedance state prevents loading of downstream circuitry |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail input common-mode range | Extends 200mV beyond supplies - enables direct interfacing with sensors operating near supply rails |
| Dual independent shutdown controls | SHDN1/SHDN2 allow selective power gating of each amplifier - critical for multi-channel power management |
| 5MHz unity-gain bandwidth | Supports 10-bit ADC sampling at 1MSPS with <0.1% gain error - suitable for medium-speed data acquisition |
| 250Ω load drive capability | Delivers full rail-to-rail swing into 250Ω - eliminates need for external buffers in driving transmission lines or analog switches |
| No phase reversal on overdrive | Prevents latch-up or erroneous output states when inputs exceed common-mode range - improves system robustness |
Applications
| Battery-Powered Instrumentation | Portable Medical Sensors |
|---|---|
Use Scenario: Handheld multimeter front-end amplifying mV-level thermocouple outputs under 3.3V battery supply. IC Role / Device Role / Timing Role: Precision DC-coupled signal conditioner with rail-to-rail input accepting 0–100mV sensor range and rail-to-rail output driving 12-bit SAR ADC. Use Value: 200µV max offset ensures <0.2% full-scale error; 650µA quiescent current extends battery life to >500 hours at 100ms sampling interval. | Use Scenario: ECG electrode amplifier in wearable patch monitoring heart rate variability with motion artifact rejection. IC Role / Device Role / Timing Role: Dual-channel instrumentation amplifier first stage with independent shutdown for lead-off detection cycles. Use Value: Dual SHDN pins enable alternating channel activation to halve average current; rail-to-rail I/O accommodates ±100mV differential bio-potential signals. |
| Data-Acquisition System Front-End | Low-Voltage Industrial Control Loop |
Use Scenario: 16-channel PLC analog input module digitizing 4–20mA current loops using precision shunt amplification. IC Role / Device Role / Timing Role: Dual op-amp providing gain-of-10 transimpedance conversion and level-shifting for 3.3V ADC interface. Use Value: 5MHz bandwidth supports anti-alias filtering at 100kHz; 500pF capacitive load stability eliminates external compensation components. | Use Scenario: Temperature controller in smart HVAC actuator using PT100 RTD with 2-wire configuration. IC Role / Device Role / Timing Role: Dual amplifier implementing constant-current excitation and ratiometric measurement amplifier. Use Value: Independent shutdown allows disabling excitation amplifier during measurement phase - reduces self-heating error in RTD sensing. |
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 |
|---|---|---|---|
| TLV2462IDR | 3MHz GBW, 550µA IQ, no shutdown, SO-8 package | Lacks independent shutdown and rail-to-rail input beyond supplies | Select when cost sensitivity outweighs shutdown requirement and 3MHz bandwidth suffices |
| AD8602ARZ | 10MHz GBW, 800µA IQ, no shutdown, SO-8 package | Higher bandwidth but no shutdown and narrower input common-mode range (VEE to VCC – 1.2V) | Select when higher speed is critical and shutdown is managed externally |
Compared with TLV2462IDR and AD8602ARZ, MAX4127ESD uniquely combines 5MHz bandwidth, true rail-to-rail input beyond supplies, and dual independent shutdown in SO-14 - making it optimal for space-constrained, multi-channel, battery-sensitive designs requiring precise low-voltage signal conditioning.
Availability
MAX4127ESD is available at Aetrix Electronics and suitable for battery-powered instrumentation, portable medical sensors, and data-acquisition system front-ends requiring stable component supply across industrial temperature ranges and long-term production continuity.
Supply support for MAX4127ESD 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 industrial, medical, and communications applications with emphasis on low-power, high-accuracy performance.
The MAX4122–MAX4129 family was engineered specifically for low-voltage, single-supply data-acquisition systems requiring rail-to-rail I/O, low quiescent current, and robust shutdown functionality - targeting portable test equipment and sensor interface modules.
FAQ
What is the operating temperature range for MAX4127ESD?
The MAX4127ESD is specified for operation from –40°C to +85°C. This industrial temperature range is confirmed in the Ordering Information table where MAX4127ESD is explicitly listed with "–40°C to +85°C" under TEMP. RANGE. All DC and AC electrical characteristics in the datasheet are guaranteed across this full range unless otherwise noted.
Does MAX4127ESD support true rail-to-rail input operation?
Yes, MAX4127ESD supports true rail-to-rail input operation with a common-mode voltage range extending from VEE – 0.2V to VCC + 0.2V. This is explicitly stated in the General Description and verified in the DC Electrical Characteristics tables, where "Common-Mode Input Voltage Range" is specified as "VEE – 0.2V to VCC + 0.2V" for MAX4126ESA/MAX4127ESD/MAX4128ESA.
How does the shutdown function work on MAX4127ESD?
MAX4127ESD features two independent shutdown pins: SHDN1 (pin 10) and SHDN2 (pin 12). Pulling either pin below 0.8V disables the corresponding amplifier, reducing its supply current to ≤25µA and placing its output in high-impedance state. This is documented in the Pin Description table and confirmed in the DC Electrical Characteristics section under "Shutdown Supply Current per Amplifier".
What package type is used for MAX4127ESD?
MAX4127ESD uses a 14-pin SO (Small Outline) package. This is unambiguously specified in the Ordering Information table where "MAX4127ESD" is listed with "14 SO" under PIN-PACKAGE, and visually confirmed in the Pin Configurations diagram on page 14 showing the SO footprint with pin 1 labeled "OUT1".
Is MAX4127ESD unity-gain stable?
Yes, MAX4127ESD is unity-gain stable. The General Description explicitly states "Unity-Gain Stable (MAX4122/3/6/7/9)" and the Selection Table confirms MAX4127 has "5MHz Gain-Bandwidth Product", which applies to the unity-gain stable variants. Phase margin measurements in the AC Electrical Characteristics section (1.3µs settling time, >60° phase margin at unity gain) further validate this behavior.
MAX4127ESD Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Package/Case:
- 14-SOIC (0.154", 3.90mm Width)
- Packaging:
- Tube
- 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:
- 250 µV
- Current - Supply:
- 725µA (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:
- 14-SOIC
MAX4127ESD FAQ
1.How can I place an order for MAX4127ESD through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX4127ESD 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 MAX4127ESD reliable?
The price and inventory of MAX4127ESD are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX4127ESD is usually 5 days.
3.What payment methods are accepted for MAX4127ESD?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX4127ESD transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX4127ESD?
MAX4127ESD orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX4127ESD 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 MAX4127ESD?
For technical support, including MAX4127ESD datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX4127ESD requirements.
6.How does Aetrix verify that MAX4127ESD is sourced from the original manufacturer or authorized distributors?
All MAX4127ESD 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 MAX4127ESD meets industry standards.
7.What is the process for return or replacement of MAX4127ESD?
All MAX4127ESD units undergo pre-shipment inspection (PSI). If there is an issue with MAX4127ESD, 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 MAX4127ESD part is unused and in its original packaging.
Return procedure for MAX4127ESD:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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