Overview
The LM2904WHDT is a dual general-purpose operational amplifier produced by STMicroelectronics. This component consists of two independent, high-gain operational amplifiers with internal frequency compensation. It is designed for use in automotive and industrial control systems, operating from a single power supply over a wide range of voltages (3V to 30V). The low power supply drain is independent of the magnitude of the power supply voltage, making it suitable for various applications, including transducer amplifiers, DC gain blocks, and conventional op-amp circuits in single-power supply systems.
Key Specifications
| Parameter | Value | Conditions |
|---|---|---|
| Supply Voltage Range | 3V to 30V | |
| DC Voltage Gain | 100 dB | |
| Bandwidth (Unity Gain) | 1.1 MHz (temperature compensated) | |
| Supply Current per Op-Amp | 500 µA | |
| Input Bias Current | 20 nA (temperature compensated) | |
| Input Offset Current | 2 nA | |
| Input Common-Mode Voltage Range | 0 to (VCC+) - 1.5 V | |
| Differential Input Voltage Range | Equal to the power supply voltage | |
| Output Voltage Swing | 0 V to VCC - 1.5 V | |
| Internal ESD Protection | 2 kV HBM, 200 V MM | |
| Operating Temperature Range | -40°C to 150°C |
Key Features
- Frequency compensation implemented internally
- Large DC voltage gain: 100 dB
- Wide bandwidth (unity gain: 1.1 MHz temperature compensated)
- Very low-supply current per operator (500 µA)
- Low input bias current: 20 nA (temperature compensated)
- Low input offset current: 2 nA
- Input common-mode voltage range includes ground
- Differential input voltage range equal to the power supply voltage
- Large output voltage swing 0 V to VCC - 1.5 V
- Internal ESD protection: 2 kV HBM, 200 V MM
Applications
The LM2904WHDT is suitable for a variety of applications, including:
- Transducer amplifiers
- DC gain blocks
- Conventional op-amp circuits in single-power supply systems
- Automotive control systems
- Industrial control systems
- Interface electronics in logic systems
Q & A
- What is the supply voltage range of the LM2904WHDT?
The supply voltage range is from 3V to 30V.
- What is the DC voltage gain of the LM2904WHDT?
The DC voltage gain is 100 dB.
- What is the bandwidth of the LM2904WHDT at unity gain?
The bandwidth at unity gain is 1.1 MHz (temperature compensated).
- How much current does each op-amp in the LM2904WHDT consume?
Each op-amp consumes 500 µA.
- What is the input bias current of the LM2904WHDT?
The input bias current is 20 nA (temperature compensated).
- What is the input offset current of the LM2904WHDT?
The input offset current is 2 nA.
- What is the input common-mode voltage range of the LM2904WHDT?
The input common-mode voltage range includes ground and up to (VCC+) - 1.5 V.
- What is the differential input voltage range of the LM2904WHDT?
The differential input voltage range is equal to the power supply voltage.
- What is the output voltage swing of the LM2904WHDT?
The output voltage swing is from 0 V to VCC - 1.5 V.
- Does the LM2904WHDT have internal ESD protection?
Yes, it has internal ESD protection of 2 kV HBM and 200 V MM.
