Overview
The LM2904BAIPWR is a dual operational amplifier (op-amp) produced by Texas Instruments. It is part of the LM2904 series, known for its high gain and low input offset voltage. This IC operates with a single power supply over a wide range of voltages and can also function with split power supplies. The LM2904BAIPWR is available in various packages, including TSSOP, which is highlighted in this specific part number.
This amplifier is internally frequency-compensated, features low power supply current, and includes short circuit protection, making it versatile for various applications. The LM2904BAIPWR is suitable for use in environments requiring low power consumption and high reliability.
Key Specifications
| Parameter | Min | Typ | Max | Unit |
|---|---|---|---|---|
| Input Offset Voltage (Vos) | ±2.0 | ±3.0 | ±4.0 | mV |
| Input Offset Voltage Drift (dVos/dT) | ±3.5 | ±12 | µV/°C | |
| Power Supply Rejection Ratio (PSRR) | 50 | dB | ||
| Common-Mode Rejection Ratio (CMRR) | 65 | 80 | dB | |
| Input Bias Current (Ib) | –20 | –250 | –500 | nA |
| Output Current per Channel | ±30 | mA | ||
| Bandwidth (BW) | 1 | MHz | ||
| Voltage Supply Range | 3 | 26 | V | |
| Operating Current Supply | 0.7 | 1.2 | mA | |
| Slew Rate at Unity Gain | 0.3 | 0.6 | V/µs |
Key Features
- High Gain: The LM2904BAIPWR has a high DC voltage gain of 100 dB.
- Low Input Offset Voltage: The input offset voltage is typically around ±3.0 mV, ensuring high accuracy.
- Internal Frequency Compensation: This feature simplifies the design process by eliminating the need for external compensation components.
- Low Power Supply Current: The IC consumes a low supply current of 0.7 to 1.2 mA, making it energy-efficient.
- Wide Voltage Supply Range: It operates with a single power supply ranging from 3 V to 26 V and can also function with split power supplies.
- Short Circuit Protection: The IC includes short circuit protection to prevent damage from output overloads.
- Low Input Bias Current: The input bias current is typically around –250 nA, reducing the impact on input signals.
- High Common-Mode Rejection Ratio (CMRR): The CMRR is 65 dB to 80 dB, ensuring good rejection of common-mode signals.
Applications
The LM2904BAIPWR is versatile and can be used in a variety of applications:
- Transducer Amplifiers: It is suitable for amplifying signals from transducers due to its high gain and low offset voltage.
- DC Amplification Blocks: It can be used in DC amplification circuits where precision and low power consumption are required.
- Voltage Followers: The IC is free from latch-up issues, making it ideal for voltage follower applications.
- Guitar Amplifiers and Audio Equipment: Its low noise and high fidelity make it a good choice for audio applications.
- DVD Players and Consumer Electronics: It is used in various consumer electronics due to its reliability and low power consumption.
Q & A
- What is the typical input offset voltage of the LM2904BAIPWR?
The typical input offset voltage is around ±3.0 mV.
- What is the operating current supply range for the LM2904BAIPWR?
The operating current supply range is from 0.7 mA to 1.2 mA.
- What is the bandwidth of the LM2904BAIPWR?
The bandwidth is 1 MHz.
- Can the LM2904BAIPWR operate with a single power supply?
Yes, it can operate with a single power supply ranging from 3 V to 26 V and also with split power supplies.
- What is the common-mode rejection ratio (CMRR) of the LM2904BAIPWR?
The CMRR is 65 dB to 80 dB.
- Does the LM2904BAIPWR have short circuit protection?
Yes, it includes short circuit protection.
- What are the typical packages available for the LM2904BAIPWR?
The IC is available in packages such as TSSOP, SOIC, and VSSOP.
- What is the slew rate at unity gain for the LM2904BAIPWR?
The slew rate at unity gain is typically around 0.3 V/µs to 0.6 V/µs.
- Can the LM2904BAIPWR be used in audio applications?
Yes, it is suitable for audio applications due to its low noise and high fidelity.[
- Is the LM2904BAIPWR suitable for use in high-temperature environments?
Yes, it operates over a temperature range of –40°C to 125°C.[
