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TPA741DGNR from TI,Texas Instruments

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TPA741DGNR

Manufacturer: TI

Mono, Differential Input, Class-AB Audio Amplifier with Active High Shutdown, and Depop

Partnumber Manufacturer Quantity Availability
TPA741DGNR TI 2920 In Stock

Description and Introduction

Mono, Differential Input, Class-AB Audio Amplifier with Active High Shutdown, and Depop The TPA741DGNR is a low-power audio operational amplifier manufactured by Texas Instruments (TI). Here are its specifications, descriptions, and features:

### **Specifications:**
- **Supply Voltage Range:** 2.5V to 5.5V  
- **Quiescent Current:** 1.1mA (typical)  
- **Output Power:** 80mW into 32Ω at 5V  
- **Total Harmonic Distortion + Noise (THD+N):** 0.01% (1kHz, 1mW into 32Ω)  
- **Gain Bandwidth Product:** 3MHz  
- **Slew Rate:** 1.5V/μs  
- **Input Noise Voltage:** 12nV/√Hz  
- **Operating Temperature Range:** -40°C to +85°C  
- **Package:** 8-pin MSOP (DGNR)  

### **Descriptions:**
- The TPA741DGNR is a low-power, high-performance audio operational amplifier designed for portable and battery-powered applications.  
- It features a low quiescent current, making it suitable for power-sensitive designs.  
- The device is optimized for audio signal processing with low distortion and noise.  

### **Features:**  
- Low quiescent current (1.1mA typical)  
- Rail-to-rail output swing  
- Unity-gain stable  
- Shutdown mode (1μA typical)  
- Improved PSRR (Power Supply Rejection Ratio)  
- Small footprint (8-pin MSOP package)  
- Suitable for headphones, portable audio devices, and line drivers  

This information is sourced from the manufacturer's datasheet.

Application Scenarios & Design Considerations

Mono, Differential Input, Class-AB Audio Amplifier with Active High Shutdown, and Depop

Alternative Part Number

  • LMV321IDBVR --: Low-voltage rail-to-rail op-amp in SOT-23-5, similar small-signal amplifier function and supply range, widely available and pin-compatible in many designs.
  • MCP6001T-I/OT --: Single general-purpose op-amp in SOT-23-5 with rail-to-rail input/output, suitable drop-in replacement for low-power signal conditioning applications.
  • TLV2461IDBVR --: Low-power rail-to-rail op-amp in SOT-23-5 with comparable bandwidth and supply voltage, good functional substitute when exact TPA741 specs are not critical.
  • OPA340NA/3K --: Rail-to-rail CMOS op-amp in SOT-23-5 with comparable bandwidth and low power, suitable functional replacement when layout allows.

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