Overview
The STMicroelectronics LM2904WN is a low-power dual operational amplifier designed for use in a variety of applications, including automotive and industrial control systems. This device consists of two independent, high-gain operational amplifiers with internal frequency compensation, allowing it to operate from a single power supply or split power supplies. The LM2904WN is characterized by its wide operating temperature range, low power consumption, and robust performance characteristics.
Key Specifications
| Parameter | Typical Value | Unit |
|---|---|---|
| Supply Voltage (Single) | 3V to 36V | V |
| Supply Voltage (Dual) | ±1.5V to ±18V | V |
| Supply Current per Amplifier | 500µA | A |
| Input Bias Current | 20nA | A |
| Input Offset Voltage (Non-A Version) | 2mV | mV |
| Input Offset Voltage (A Version) | 1mV | mV |
| DC Voltage Gain | 100dB | dB |
| Unity Gain Bandwidth | 1.1MHz | Hz |
| Slew Rate | 0.3V/µs | V/µs |
| Operating Temperature Range | -40°C to +125°C | °C |
| Package Types | SO-8, MSOP-8, TSSOP-8 |
Key Features
- Internally compensated for unity gain stability
- Large DC voltage gain of 100dB
- Wide bandwidth (unity gain) of 1.1MHz (temperature compensated)
- Very low supply current per amplifier, independent of supply voltage
- Low input bias current of 20nA (temperature compensated)
- Low input offset current of 2nA
- Input common-mode voltage range includes the negative rail
- Differential input voltage range equal to the power supply voltage
- Large output voltage swing from 0V to (VCC+ - 1.5V)
- Totally lead-free and fully RoHS compliant
- Halogen and antimony free, 'green' device
Applications
- Transducer amplifiers
- DC gain blocks
- Conventional op-amp circuits
- Automotive and industrial control systems
- Interface electronics in digital systems
Q & A
- What is the typical supply current per amplifier for the LM2904WN?
The typical supply current per amplifier is 500µA, which is independent of the supply voltage.
- What is the operating temperature range of the LM2904WN?
The operating temperature range is from -40°C to +125°C.
- What are the package types available for the LM2904WN?
The LM2904WN is available in SO-8, MSOP-8, and TSSOP-8 packages.
- What is the input bias current of the LM2904WN?
The input bias current is typically 20nA.
- What is the differential input voltage range for the LM2904WN?
The differential input voltage range is equal to the power supply voltage.
- Can the LM2904WN operate from a single power supply or dual supplies?
Yes, the LM2904WN can operate from a single power supply (3V to 36V) or dual supplies (±1.5V to ±18V).
- What is the slew rate of the LM2904WN?
The slew rate is typically 0.3V/µs.
- Is the LM2904WN RoHS compliant?
Yes, the LM2904WN is totally lead-free and fully RoHS compliant.
- What are some typical applications of the LM2904WN?
Typical applications include transducer amplifiers, DC gain blocks, and conventional op-amp circuits.
- What is the DC voltage gain of the LM2904WN?
The DC voltage gain is 100dB.
