Overview
The LM2904WPT, produced by STMicroelectronics, is a low-power dual operational amplifier designed for a wide range of applications, particularly in automotive and industrial control systems. This device features two independent, high-gain, internally frequency-compensated operational amplifiers. It operates from a single power supply over a broad voltage range, making it versatile for various electronic circuits. The LM2904WPT is available in several package types, including DIP8, TSSOP8, and SO-8, catering to different design requirements.
Key Specifications
| Parameter | Min. | Typ. | Max. | Unit |
|---|---|---|---|---|
| Input Offset Voltage (Tamb = 25°C) | 2 | 7 | 9 | mV |
| Input Offset Current (Tamb = 25°C) | 2 | - | 30 | nA |
| Supply Current (VCC = 5 V, No Load) | - | 0.7 | 1.2 | mA |
| Large Signal Bandwidth (Unity Gain) | - | 1.1 | - | MHz |
| Slew Rate (VCC = 15 V, RL = 2 kΩ, CL = 100 pF) | 0.2 | 0.6 | - | V/μs |
| Output Voltage Swing (VCC = 15 V, RL = 2 kΩ) | - | - | VCC - 1.5 V | V |
| Operating Temperature Range | -40 | - | 125 | °C |
| ESD Protection | - | - | 2 kV | - |
Key Features
- Internally frequency compensated
- Large DC voltage gain: 100 dB
- Wide bandwidth (unity gain): 1.1 MHz
- Very low supply current per operational amplifier: 500 µA
- Low input bias current: 20 nA
- Low input offset current: 2 nA
- Input common-mode voltage range includes negative rail
- Differential input voltage range equal to the power supply voltage
- Large output voltage swing: 0 V to (VCC - 1.5 V)
- ESD internal protection: 2 kV
Applications
The LM2904WPT is suitable for a variety of applications, including:
- Transducer amplifiers
- DC gain blocks
- Conventional op-amp circuits in single power supply systems
- Interface electronics in digital systems without additional power supplies
- Automotive and industrial control systems
Q & A
- What is the typical supply current of the LM2904WPT?
The typical supply current is 0.7 mA per operational amplifier. - What is the input offset voltage of the LM2904WPT at 25°C?
The input offset voltage is typically 7 mV. - What is the slew rate of the LM2904WPT?
The slew rate is typically 0.6 V/μs at unity gain. - What is the operating temperature range of the LM2904WPT?
The operating temperature range is from -40°C to 125°C. - What types of packages are available for the LM2904WPT?
The device is available in DIP8, TSSOP8, and SO-8 packages. - What is the ESD protection level of the LM2904WPT?
The device has an internal ESD protection level of 2 kV. - Can the LM2904WPT operate from a single power supply?
Yes, it can operate from a single power supply over a wide range of voltages. - What is the bandwidth of the LM2904WPT at unity gain?
The bandwidth at unity gain is typically 1.1 MHz. - What are some common applications of the LM2904WPT?
Common applications include transducer amplifiers, DC gain blocks, and conventional op-amp circuits in single power supply systems. - How does the input common-mode voltage range of the LM2904WPT compare to the power supply voltage?
The input common-mode voltage range includes the negative rail and is equal to the power supply voltage.
