Overview
The LMV821M7X/NOPB is a low-voltage, low-power operational amplifier (op-amp) produced by Texas Instruments. This device is part of the LMV82x series, which includes single, dual, and quad op-amp configurations. The LMV821 is specifically a single op-amp designed for applications requiring low power consumption and high performance in a small package. It operates over a wide supply voltage range from 2.5V to 5.5V and is suitable for various analog signal processing tasks.
Key Specifications
| Parameter | Min | Max | Unit | |
|---|---|---|---|---|
| Supply Voltage | 2.5 | 5.5 | V | |
| Temperature Range | -40 | 85 | °C | |
| Input Offset Voltage (VOS) | 1 | 3.5 | 4 | mV |
| Input Bias Current (IB) | 30 | 90 | 140 | nA |
| Common Mode Rejection Ratio (CMRR) | 70 | 85 | dB | |
| Positive Power Supply Rejection Ratio (+PSRR) | 75 | 85 | dB | |
| Slew Rate (SR) | 1.4 | 2.0 | V/μs | |
| Gain-Bandwidth Product (GBW) | 5 | MHz | ||
| Output Current (IO) | 12 | 16 | mA | |
| Supply Current (IS) | 0.22 | 0.3 | 0.5 | mA |
Key Features
- Low Power Consumption: The LMV821 operates with a supply current as low as 0.22 mA, making it suitable for battery-powered devices.
- Wide Supply Voltage Range: It can operate from 2.5V to 5.5V, allowing flexibility in various application scenarios.
- High Performance: Features a high gain-bandwidth product of 5 MHz and a slew rate of 1.4 V/μs to 2.0 V/μs.
- Low Input Offset Voltage: With a typical input offset voltage of 3.5 mV, it ensures high accuracy in signal processing.
- High Common Mode Rejection Ratio (CMRR): Offers a CMRR of 70 dB to 85 dB, enhancing the ability to reject common-mode signals.
- Compact Package: Available in small packages such as SC70-5 and SOT23-5, making it ideal for space-constrained designs.
Applications
- Portable Electronics: Suitable for battery-powered devices due to its low power consumption.
- Medical Devices: Can be used in medical equipment requiring high accuracy and low noise.
- Automotive Systems: The LMV821-Q1 versions are qualified for automotive applications, operating over a temperature range of -40°C to 125°C.
- Industrial Control Systems: Useful in various industrial control and monitoring applications where low power and high performance are required.
- Audio Equipment: Can be used in audio circuits due to its low noise and high fidelity characteristics.
Q & A
- What is the supply voltage range of the LMV821?
The LMV821 operates over a supply voltage range from 2.5V to 5.5V.
- What is the typical input offset voltage of the LMV821?
The typical input offset voltage is 3.5 mV.
- What is the gain-bandwidth product of the LMV821?
The gain-bandwidth product is 5 MHz.
- What is the slew rate of the LMV821?
The slew rate is 1.4 V/μs to 2.0 V/μs.
- What is the common mode rejection ratio (CMRR) of the LMV821?
The CMRR is 70 dB to 85 dB.
- What are the typical applications of the LMV821?
It is suitable for portable electronics, medical devices, automotive systems, industrial control systems, and audio equipment.
- What are the available package types for the LMV821?
It is available in SC70-5 and SOT23-5 packages.
- What is the temperature range for the LMV821?
The temperature range is -40°C to 85°C for standard versions and -40°C to 125°C for Q1 versions.
- What is the output current capability of the LMV821?
The output current is 12 mA to 16 mA.
- What is the supply current of the LMV821?
The supply current is 0.22 mA to 0.3 mA.
