Overview
The LM2902N-MAND, produced by Texas Instruments, is a low-power, quad-operational amplifier designed for a wide range of applications, particularly in automotive and industrial control systems. This device features four independent, high-gain operational amplifiers with internal frequency compensation, ensuring stability and performance across various operating conditions.
The LM2902N-MAND operates from a single power supply with a wide voltage range of 3 V to 26 V, and it can also function with split power supplies. The device is known for its low power supply current drain, which is independent of the power supply voltage magnitude, making it efficient for power-sensitive applications.
Key Specifications
| Specification | Value | Conditions |
|---|---|---|
| Operating Temperature Range | −40°C to +85°C | |
| Supply Voltage Range | 3 V to 26 V | |
| Bandwidth (Unity Gain) | 1.2 MHz | |
| Large Signal Voltage Gain | 50 V/mV (V+ = 15 V, RL ≥ 2 kΩ) | VO = 1 V to 11 V, TA = 25°C |
| Common-Mode Rejection Ratio | 70 dB | DC, VCM = 0 V to V+ − 1.5 V, TA = 25°C |
| Power Supply Rejection Ratio | 10 dB | V+ = 5 V to 26 V, TA = 25°C |
| Input Bias Current | 40 nA to 500 nA | IIN(+) or IIN(−), TA = 25°C |
| Input Common-Mode Voltage Range | 0 V to V+ − 1.5 V | V+ = 26 V, TA = 25°C |
| Output Voltage Swing | 22 V to 26 V (VOH), 5 mV to 100 mV (VOL) | V+ = 26 V, RL = 2 kΩ to 10 kΩ, TA = 25°C |
| Output Current | 10 mA (Source), 5 mA (Sink) | VO = 2 V, VIN+ = 1 V, VIN− = 0 V, V+ = 15 V |
Key Features
- Low Power Consumption: The device has a low power supply current drain, independent of the power supply voltage magnitude.
- Wide Supply Voltage Range: Operates from a single supply of 3 V to 26 V or split power supplies.
- High Gain and Bandwidth: Features a large DC voltage gain of 100 dB and a bandwidth of 1.2 MHz.
- Internal Frequency Compensation: Ensures stability and performance across various operating conditions.
- ESD Protection: Offers high ESD ratings of 2 kV (HBM) and 1.5 kV (CDM).
- Integrated EMI and RF Filters: Enhances the device's ability to reject electromagnetic interference and radio-frequency noise.
- Low Input Offset Voltage: Maximum offset voltage of 3 mV (typical) for the B version.
- High Common-Mode Input Range: Input common-mode voltage range includes ground and can be driven up to the supply voltage.
Applications
- Automotive Systems: Suitable for various automotive control systems due to its robust specifications and wide operating temperature range.
- Industrial Control Systems: Ideal for industrial applications requiring high reliability and performance in harsh environments.
- General-Purpose Amplification: Can be used in a variety of general-purpose amplification tasks where low power consumption and high gain are required.
- Signal Conditioning: Useful in signal conditioning circuits where stability and low noise are critical.
Q & A
- What is the operating temperature range of the LM2902N-MAND?
The operating temperature range is −40°C to +85°C.
- What is the supply voltage range for the LM2902N-MAND?
The device operates from a single supply of 3 V to 26 V or split power supplies.
- What is the bandwidth of the LM2902N-MAND at unity gain?
The bandwidth at unity gain is 1.2 MHz.
- What is the typical input bias current of the LM2902N-MAND?
The typical input bias current is 40 nA to 500 nA.
- What is the common-mode rejection ratio of the LM2902N-MAND?
The common-mode rejection ratio is 70 dB.
- Does the LM2902N-MAND have ESD protection?
Yes, it offers high ESD ratings of 2 kV (HBM) and 1.5 kV (CDM).
- What is the maximum output voltage swing of the LM2902N-MAND?
The maximum output voltage swing is 22 V to 26 V (VOH) and 5 mV to 100 mV (VOL) for different load resistances.
- Can the LM2902N-MAND be used in automotive applications?
Yes, it is suitable for various automotive control systems due to its robust specifications and wide operating temperature range.
- What is the typical quiescent current per amplifier for the LM2902N-MAND?
The typical quiescent current per amplifier is 240 µA.
- Does the LM2902N-MAND have integrated EMI and RF filters?
Yes, it has integrated EMI and RF filters to enhance its ability to reject electromagnetic interference and radio-frequency noise.
