Overview
The LM2904AN is a high-gain operational amplifier (op-amp) produced by onsemi. It is part of the LM2904 series, which includes dual independent and internally frequency-compensated op-amps. These amplifiers are known for their low input offset voltage and low power supply current, making them suitable for a wide range of applications. The LM2904AN operates with a single power supply over a wide voltage range (3 volts to 26 volts) and can also function with split power supplies.
Key Specifications
| Parameter | Min | Typ | Max | Unit |
|---|---|---|---|---|
| DC Voltage Gain | - | - | 100 dB | - |
| Voltage Supply Range | 3 V | - | 26 V | V |
| Power Supply Rejection Ratio (PSRR) | - | - | 50 dB | - |
| Operating Current Supply | - | - | 250 µA | - |
| Input Offset Voltage (Vos) | - | 2 mV | 7 mV | mV |
| Output Current per Channel | - | - | 30 mA | - |
| Bandwidth (BW) | - | - | 1 MHz | - |
| Input Bias Current (Ib) | - | 250 nA | - | nA |
| Common Mode Rejection Ratio (CMRR) | - | - | 70 dB | - |
| Slew Rate | 0.3 V/µs | - | - | V/µs |
Key Features
- Voltage Supplies: Wide range of operation from 3 volts to 26 volts, and can operate with single or split power supplies.
- Low Input Biasing Current: Typically 250 nA.
- Internal Frequency Compensation: Reduces the need for external components.
- Low Input Offset Voltage and Offset Current: Ensures high accuracy and stability.
- Differential Input Voltage Range: Equivalent to the power supply voltage.
- Common-Mode Voltage Input Range: Includes ground, making it suitable for single supply operation.
- Output Protection: Short circuit protection.
- Packages: Available in SO-8 (dual) and SO-14 (quad) packages, and are lead-free and RoHS compliant.
Applications
The LM2904AN is commonly used in various applications due to its high gain, low power consumption, and robust features. Some typical applications include:
- Guitar Amplifiers: Due to its low noise and high gain characteristics.
- DVD Players and Other Consumer Electronics: Where low power consumption and high reliability are essential.
- Voltage Follower Applications: The LM2904AN is free from latch-up issues, making it ideal for such applications.
- General Purpose Amplification: In circuits requiring high gain and low input offset voltage.
Q & A
- What is the voltage supply range of the LM2904AN?
The LM2904AN operates with a voltage supply range of 3 volts to 26 volts.
- What is the typical input offset voltage of the LM2904AN?
The typical input offset voltage is 2 mV, with a maximum of 7 mV.
- What is the slew rate of the LM2904AN?
The slew rate is typically 0.3 V/µs.
- Can the LM2904AN operate with a single power supply?
Yes, the LM2904AN can operate with a single power supply as well as with split power supplies.
- What are the available packages for the LM2904AN?
The LM2904AN is available in SO-8 (dual) and SO-14 (quad) packages.
- Does the LM2904AN have short circuit protection?
Yes, the LM2904AN includes short circuit protection for its outputs.
- What is the common-mode rejection ratio (CMRR) of the LM2904AN?
The CMRR is typically 70 dB.
- Is the LM2904AN lead-free and RoHS compliant?
Yes, the LM2904AN is lead-free and fully RoHS compliant.
- What is the bandwidth of the LM2904AN at unity gain?
The bandwidth at unity gain is typically 1 MHz.
- Can the LM2904AN be used in automotive applications?
Yes, an automotive-compliant version of the LM2904 is available under separate part numbers.
