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MAX4163ESA from MAXIM,MAXIM - Dallas Semiconductor

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MAX4163ESA

Manufacturer: MAXIM

SOT23 / Micropower / Single-Supply / Rail-to-Rail I/O Op Amps

Partnumber Manufacturer Quantity Availability
MAX4163ESA MAXIM 150 In Stock

Description and Introduction

SOT23 / Micropower / Single-Supply / Rail-to-Rail I/O Op Amps The MAX4163ESA is a low-power, single-supply operational amplifier (op-amp) manufactured by Maxim Integrated. Below are its specifications, descriptions, and features based on factual information from Ic-phoenix technical data files:

### **Specifications:**
- **Manufacturer:** Maxim Integrated  
- **Part Number:** MAX4163ESA  
- **Package:** 8-pin SOIC (Small Outline Integrated Circuit)  
- **Supply Voltage (Single Supply):** +2.7V to +6V  
- **Supply Voltage (Dual Supply):** ±1.35V to ±3V  
- **Input Offset Voltage:** 0.5mV (max)  
- **Input Bias Current:** 1pA (typ)  
- **Gain Bandwidth Product (GBWP):** 1MHz (typ)  
- **Slew Rate:** 0.5V/µs (typ)  
- **Quiescent Current:** 50µA (typ) per amplifier  
- **Operating Temperature Range:** -40°C to +85°C  
- **Output Current:** ±20mA (min)  
- **Common-Mode Rejection Ratio (CMRR):** 80dB (typ)  
- **Power Supply Rejection Ratio (PSRR):** 80dB (typ)  

### **Descriptions:**
The MAX4163ESA is a precision, low-power, single-supply operational amplifier designed for battery-powered and portable applications. It features rail-to-rail output swing and operates efficiently with a single supply voltage as low as +2.7V. The device is optimized for low-power consumption while maintaining high precision and performance.  

### **Features:**
- **Low Power Consumption:** 50µA (typ) per amplifier quiescent current  
- **Single-Supply Operation:** +2.7V to +6V  
- **Rail-to-Rail Output Swing**  
- **Low Input Offset Voltage:** 0.5mV (max)  
- **Low Input Bias Current:** 1pA (typ)  
- **Wide Operating Temperature Range:** -40°C to +85°C  
- **Stable with Capacitive Loads up to 300pF**  
- **High Output Drive:** ±20mA (min)  
- **Available in 8-pin SOIC Package**  

This information is strictly based on the manufacturer's datasheet and technical documentation.

Application Scenarios & Design Considerations

SOT23 / Micropower / Single-Supply / Rail-to-Rail I/O Op Amps# Technical Documentation: MAX4163ESA Low-Power, Precision, Single-Supply Op-Amp

 Manufacturer : Maxim Integrated (now part of Analog Devices Inc.)
 Component : MAX4163ESA
 Description : Low-Power, Precision, Single-Supply Operational Amplifier
 Package : 8-SOIC (ESA)

---

## 1. Application Scenarios

### Typical Use Cases
The MAX4163ESA is a precision, low-power operational amplifier optimized for single-supply operation from +2.7V to +6.5V. Its design makes it particularly suitable for applications where power consumption, precision, and single-supply compatibility are critical constraints.

 Primary use cases include: 
*    Portable and Battery-Powered Equipment:  The device's low supply current (typically 750µA) and wide single-supply range make it ideal for handheld meters, medical monitors, and portable data loggers where extended battery life is essential.
*    Sensor Signal Conditioning:  Effectively amplifies weak signals from transducers such as thermocouples, strain gauges, pressure sensors, and photodiodes. Its low offset voltage (max. 250µV) and low drift (2µV/°C) ensure accurate measurement.
*    Active Filter Circuits:  Suitable for implementing low-power, single-supply Sallen-Key or multiple-feedback (MFB) filter topologies in audio processing or signal bandwidth limiting applications.
*    Voltage Followers/Buffers:  Provides high input impedance and low output impedance to isolate stages without loading sensitive signal sources.
*    Analog-to-Digital Converter (ADC) Drivers:  Its rail-to-rail output swing maximizes dynamic range when interfacing with single-supply ADCs in data acquisition systems.

### Industry Applications
*    Industrial Automation & Control:  Used in 4-20mA transmitter loops, process control instrumentation, and condition monitoring systems for its precision and robustness.
*    Medical Electronics:  Found in portable diagnostic devices, patient monitoring sensors (SpO₂, ECG front-ends), and wearable health monitors due to low power and reliable performance.
*    Consumer Electronics:  Employed in audio pre-amplifiers, touch-screen interface circuits, and battery management system (BMS) sensing circuits.
*    Automotive Systems:  Applicable in non-critical sensor interfaces within the cabin or body control modules, given its operating temperature range (-40°C to +85°C).
*    Test & Measurement:  Used as a front-end amplifier in portable multimeters and low-frequency signal generators.

### Practical Advantages and Limitations
 Advantages: 
*    Single-Supply Operation:  Eliminates the need for a negative voltage rail, simplifying power supply design and reducing system cost.
*    Low Power Consumption:  Typical supply current of 750µA minimizes heat generation and extends battery life.
*    Rail-to-Rail Output:  The output swings to within 50mV of either supply rail, maximizing signal headroom in low-voltage systems.
*    High Precision:  Features low input offset voltage, low input bias current (1nA max), and high open-loop gain (120dB min), ensuring accuracy in DC and low-frequency applications.
*    Stability:  Unity-gain stable, simplifying design by not requiring external compensation.

 Limitations: 
*    Limited Bandwidth:  Gain-bandwidth product (GBWP) of 1MHz restricts use to low-frequency or DC applications. Unsuitable for video, RF, or high-speed data conversion.
*    Moderate Slew Rate:  0.5V/µs limits the full-power response to high-frequency signals, potentially causing distortion in fast transient applications.
*    Input Common-Mode Range:  Does  not  include the negative rail (ground). The input voltage must remain above (V- + 1.1

Alternative Part Number

  • OPA2340UA --: Rail-to-rail CMOS op-amp in SO-8 with similar bandwidth and supply range, widely available and pin-compatible in function.
  • LMV358IDGKR --: Low-voltage rail-to-rail dual op-amp in SO-8, good drop-in functional substitute for general-purpose applications.
  • AD8606ARZ --: Precision low-noise rail-to-rail CMOS dual op-amp in SO-8, suitable when better DC accuracy is needed.
  • LMV321M5 --: Single low-voltage rail-to-rail op-amp in SOT-23-5, similar supply range and bandwidth, widely available and pin-compatible in function.
  • OPA340NA --: Rail-to-rail CMOS op-amp with comparable supply voltage and speed, suitable drop-in functional replacement in SOT-23-5.
  • AD8541ARTZ --: Low-power rail-to-rail single op-amp with similar electrical characteristics, good alternative when MAXIM parts are unavailable.

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