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MAX4428CSA from MAX,MAXIM - Dallas Semiconductor

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MAX4428CSA

Manufacturer: MAX, MAXIM

Dual High-Speed 1.5A MOSFET Drivers

Partnumber Manufacturer Quantity Availability
MAX4428CSA MAX, MAXIM 738 In Stock

Description and Introduction

Dual High-Speed 1.5A MOSFET Drivers The MAX4428CSA is a high-speed, low-power operational amplifier (op-amp) manufactured by Maxim Integrated. Below are its key specifications, descriptions, and features:

### **Specifications:**
- **Manufacturer:** Maxim Integrated  
- **Part Number:** MAX4428CSA  
- **Package:** 8-Pin SOIC  
- **Supply Voltage Range:** ±2.25V to ±6V (Dual Supply), 4.5V to 12V (Single Supply)  
- **Input Offset Voltage:** 0.5mV (max)  
- **Input Bias Current:** 2nA (max)  
- **Gain Bandwidth Product (GBWP):** 50MHz  
- **Slew Rate:** 100V/µs  
- **Quiescent Current:** 5.5mA per amplifier  
- **Operating Temperature Range:** 0°C to +70°C  
- **Output Current:** ±50mA  
- **Common-Mode Rejection Ratio (CMRR):** 80dB (min)  
- **Power Supply Rejection Ratio (PSRR):** 80dB (min)  

### **Descriptions:**
- The MAX4428CSA is a dual, high-speed, low-power op-amp designed for precision applications.  
- It features rail-to-rail output swing and high slew rate, making it suitable for signal conditioning, active filters, and data acquisition systems.  
- The device operates from a single or dual power supply and is optimized for low distortion and high-speed performance.  

### **Features:**
- **High Speed:** 50MHz GBWP and 100V/µs slew rate  
- **Low Power Consumption:** 5.5mA per amplifier  
- **Rail-to-Rail Output Swing**  
- **Low Input Offset Voltage (0.5mV max)**  
- **Low Input Bias Current (2nA max)**  
- **Wide Supply Range:** ±2.25V to ±6V (dual), 4.5V to 12V (single)  
- **Stable with Capacitive Loads up to 100pF**  
- **Available in 8-Pin SOIC Package**  

This information is based solely on the manufacturer's datasheet for the MAX4428CSA.

Application Scenarios & Design Considerations

Dual High-Speed 1.5A MOSFET Drivers# Technical Documentation: MAX4428CSA High-Speed, Low-Power Op-Amp

 Manufacturer : Maxim Integrated (now part of Analog Devices)
 Component : MAX4428CSA
 Description : Single, 200MHz, Low-Power, Current-Feedback Operational Amplifier
 Package : 8-Pin SOIC (CSA denotes the SOIC package)

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## 1. Application Scenarios

### Typical Use Cases
The MAX4428CSA is a current-feedback operational amplifier (CFA) optimized for applications requiring high speed, wide bandwidth, and low power consumption in a single-supply or dual-supply configuration. Its architecture provides nearly constant bandwidth independent of closed-loop gain, making it distinct from voltage-feedback amplifiers (VFAs).

*    High-Speed Signal Conditioning:  Ideal for amplifying and buffering fast analog signals from sensors, photodiodes, or RF stages before analog-to-digital conversion. Its 200MHz bandwidth supports video, imaging, and communication signals.
*    Active Filtering:  Suitable for implementing high-frequency active filters (e.g., Sallen-Key configurations) in signal processing chains, such as anti-aliasing filters for ADCs or reconstruction filters for DACs.
*    Video Line Driving:  Commonly used to drive 75Ω coaxial cables in professional and broadcast video equipment (e.g., driving RGB components, composite video). Its high slew rate ensures minimal distortion of fast video edges.
*    ADC/DAC Buffering:  Acts as an effective buffer or driver for high-speed analog-to-digital converters (ADCs) and digital-to-analog converters (DACs), isolating the sensitive converter front-end from the preceding or following stages.
*    Test and Measurement Equipment:  Employed in the analog signal paths of oscilloscope front-ends, arbitrary waveform generators, and high-speed data acquisition systems where signal fidelity at high frequencies is critical.

### Industry Applications
*    Professional Video & Broadcasting:  Distribution amplifiers, video switchers, production equipment.
*    Medical Imaging:  Ultrasound analog front-ends, portable imaging devices where low power is beneficial.
*    Communications Infrastructure:  Intermediate frequency (IF) amplification stages in transceivers, clock buffer/distribution.
*    Industrial Automation:  High-speed data acquisition systems, laser diode drivers, precision instrumentation.

### Practical Advantages and Limitations
 Advantages: 
*    Gain-Bandwidth Independence:  As a current-feedback amp, its closed-loop bandwidth remains relatively constant over a wide range of gains, simplifying high-gain, high-frequency design.
*    High Slew Rate:  Typically >400V/µs, enabling excellent large-signal handling and minimal distortion for fast pulses or signals.
*    Low Power Consumption:  Typically draws 3.5mA per amplifier, making it suitable for portable or power-sensitive applications.
*    Single/Dual Supply Operation:  Can operate from a single +5V supply up to dual ±5V supplies, offering design flexibility.
*    Disable Function (Shutdown):  The `SHDN` pin allows the amplifier to be placed in a low-power shutdown mode, reducing supply current to microamps—crucial for battery-powered devices.

 Limitations: 
*    Current-Feedback Topology:  Requires careful attention to feedback resistor selection. The feedback resistor (`R_F`) value sets stability and bandwidth; using values significantly outside the recommended range (see datasheet) can cause oscillation or peaking.
*    Limited Output Current:  While capable of driving video loads, it is not designed as a power amplifier. Driving very low impedances (< 50Ω) may require an external buffer.
*    Input Bias Current:  Has higher and less predictable input bias currents compared to precision voltage-feedback op-amps, making it less suitable for DC-coupled applications requiring very high input impedance (e.g., photodiode transim

Alternative Part Number

  • TC4428AEPA --: Dual inverting/non-inverting MOSFET driver with similar function and pinout, widely available and cost-effective.
  • ICL7667CPA --: Dual high-speed MOSFET driver offering comparable drive capability and logic compatibility.
  • UCC27424P --: Dual low-side gate driver with similar current rating and inverting/non-inverting configuration options.
  • TC4428AEOA --: Dual high-speed MOSFET driver with inverting/non-inverting channels, functionally equivalent to MAX4428 and available in SOIC-8.
  • ICL7667CBA --: Dual CMOS power MOSFET driver with similar drive capability and pin-compatible SOIC-8 package, suitable direct replacement.
  • MC34152P --: Dual high-speed MOSFET driver offering comparable peak output current and logic compatibility for MAX4428 applications.

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