Overview
The LM2902DTBR2, produced by onsemi, is a low-power quad operational amplifier. This component consists of four independent, high-gain operational amplifiers that are internally frequency compensated for unity gain. The LM2902 series is designed to operate from a single power supply over a wide voltage range, making it versatile for various applications.
The device is suitable for battery operation due to its low power drain and can operate with supply voltages ranging from 3V to 26V (or ±1.5V to ±13V) for the LM2902 model. It features a large output voltage swing and a wide input common-mode voltage range that includes ground, enhancing its usability in different circuit configurations.
Key Specifications
| Parameter | Symbol | Conditions | Min. | Typ. | Max. | Unit |
|---|---|---|---|---|---|---|
| Supply Voltage | VCC | - | 3 | - | 26 | V |
| Input Common-Mode Voltage Range | VICM | 0 to VCC - 1.5V | 0 | - | VCC - 1.5 | V |
| Input Offset Voltage | VIO | VCM = 0V to VCC - 1.5V | - | 1.5 | 7.0 | mV |
| Input Offset Current | IIO | VCM = 0V | - | 3.0 | 50 | nA |
| Input Bias Current | IBIAS | VCM = 0V | - | 40 | 250 | nA |
| Supply Current | ICC | VCC = 30V, RL = ∞ | - | 1.0 | 3 | mA |
| Large Signal Voltage Gain | GV | VCC = 15V, RL ≥ 2kΩ | 25 | - | 100 | V/mV |
| Output Voltage Swing | VO(H) | RL = 2kΩ | - | - | 26 | V |
| Common-Mode Rejection Ratio | CMRR | DC, VCM = 0V to V+ - 1.5V | 65 | - | 85 | dB |
Key Features
- Internally frequency compensated for unity gain.
- Wide power supply range: 3V to 26V (or ±1.5V to ±13V).
- Large DC voltage gain: 100 dB.
- Input common-mode voltage range includes ground.
- Large output voltage swing: 0V to VCC - 1.5V.
- Low power drain suitable for battery operation.
- High common-mode rejection ratio (CMRR): up to 85 dB.
- Wide bandwidth (unity gain): 1 MHz.
Applications
- Transducer amplifiers.
- DC gain blocks.
- Conventional operational amplifier circuits.
- Battery-powered devices due to low power consumption.
- Automotive and industrial control systems.
- Audio and signal processing circuits.
Q & A
- What is the operating voltage range of the LM2902DTBR2?
The LM2902DTBR2 operates from a single power supply over a wide voltage range of 3V to 26V (or ±1.5V to ±13V).
- What is the input common-mode voltage range of the LM2902DTBR2?
The input common-mode voltage range includes ground and extends up to VCC - 1.5V.
- What is the typical input offset voltage of the LM2902DTBR2?
The typical input offset voltage is around 1.5 mV, with a maximum of 7.0 mV.
- What is the supply current of the LM2902DTBR2 at different supply voltages?
The supply current is approximately 1.0 mA to 3 mA at VCC = 30V and 0.7 mA to 1.2 mA at VCC = 5V.
- What is the large signal voltage gain of the LM2902DTBR2?
The large signal voltage gain is typically 100 V/mV at VCC = 15V and RL ≥ 2kΩ.
- What is the output voltage swing of the LM2902DTBR2?
The output voltage swing can reach up to 26V for RL = 2kΩ and up to 28V for RL = 10kΩ.
- What is the common-mode rejection ratio (CMRR) of the LM2902DTBR2?
The CMRR is typically up to 85 dB.
- What are the typical applications of the LM2902DTBR2?
The LM2902DTBR2 is commonly used in transducer amplifiers, DC gain blocks, conventional operational amplifier circuits, and battery-powered devices.
- Is the LM2902DTBR2 suitable for automotive applications?
While the LM2902 itself is not specifically qualified for automotive use, it can be used in various industrial and control systems. For automotive use, consider the NCV2902 variant.
- What is the package type of the LM2902DTBR2?
The LM2902DTBR2 comes in a TSSOP-14 package.
