Overview
The STMicroelectronics LM2904WHD is a low-power dual operational amplifier designed for use in automotive and industrial control systems. This device consists of two independent, high-gain operational amplifiers (op-amps) with internal frequency compensation. It operates from a single power supply and is known for its high performance and reliability in various applications.
Key Specifications
| Parameter | Value | Conditions |
|---|---|---|
| DC Voltage Gain | 100 dB | - |
| Bandwidth (Unity Gain) | 1.1 MHz | - |
| Supply Voltage | 3 V to 30 V, ±1.5 V to ±15 V | - |
| Supply Current per Amplifier | 700 µA | - |
| Input Bias Current | 20 nA | - |
| Input Offset Current | 2 nA | - |
| Input Common-Mode Voltage Range | Includes the negative rail | - |
| Differential Input Voltage Range | Equal to the power supply voltage | - |
| Output Voltage Swing | 0 V to (VCC+ - 1.5 V) | RL = 2 kΩ |
| Slew Rate | 0.6 V/µs | VCC+ = 15 V, Vi = 0.5 to 3 V, RL = 2 kΩ, CL = 100 pF |
| Gain Bandwidth Product | 1.1 MHz | f = 100 kHz, VCC+ = 30 V, Vin = 10 mV, RL = 2 kΩ, CL = 100 pF |
Key Features
- Frequency compensation implemented internally
- Large DC voltage gain of 100 dB
- Wide bandwidth (unity gain) of 1.1 MHz (temperature compensated)
- Very low supply current per amplifier, essentially independent of supply voltage
- Low input bias current of 20 nA (temperature compensated)
- Low input offset current of 2 nA
- Input common-mode voltage range includes the negative rail
- Differential input voltage range equal to the power supply voltage
- Large output voltage swing from 0 V to (VCC+ - 1.5 V)
Applications
- Transducer amplifiers
- DC gain blocks
- Conventional op-amp circuits
Q & A
- What is the LM2904WHD used for? The LM2904WHD is used in automotive and industrial control systems as a low-power dual operational amplifier.
- What is the DC voltage gain of the LM2904WHD? The DC voltage gain is 100 dB.
- What is the bandwidth of the LM2904WHD at unity gain? The bandwidth at unity gain is 1.1 MHz.
- What is the supply voltage range for the LM2904WHD? The supply voltage range is from 3 V to 30 V, and ±1.5 V to ±15 V.
- How much current does each amplifier in the LM2904WHD consume? Each amplifier consumes approximately 700 µA.
- What is the input bias current of the LM2904WHD? The input bias current is 20 nA.
- What is the slew rate of the LM2904WHD? The slew rate is 0.6 V/µs.
- What is the gain bandwidth product of the LM2904WHD? The gain bandwidth product is 1.1 MHz.
- What are some common applications of the LM2904WHD? Common applications include transducer amplifiers, DC gain blocks, and conventional op-amp circuits.
- Is the LM2904WHD suitable for single power supply systems? Yes, the LM2904WHD is designed for use in single power supply systems.
