Overview
The LMV321AIDCKR is a single 1MHz operational amplifier from Texas Instruments, designed for low-voltage applications with high performance and precision. This device is part of the LMV3xxA family, which includes single, dual, and quad-channel low-voltage operational amplifiers with rail-to-rail output swing capabilities. It operates within a supply voltage range of 2.5V to 5.5V, making it ideal for space-constrained applications where low-voltage operation and high capacitive-load drive are required.
Key Specifications
Parameter | Value |
---|---|
Number of channels | 1 |
Total supply voltage (max) | 5.5V |
Total supply voltage (min) | 2.5V |
Unity-gain bandwidth (typ) | 1 MHz |
Slew rate (typ) | 1.7 V/µs |
Input offset voltage (max) | ±4 mV |
Quiescent current per channel (typ) | 0.08 mA |
Broadband noise (typ) | 30 nV/√Hz |
Operating temperature range | -40°C to 125°C |
Input bias current (typ) | 10 pA |
Output current (typ) | 0.04 A |
CMRR (typ) | 77 dB |
Package | SOT-SC70 (DCK)-5 |
Key Features
- Low Input Offset Voltage: ±1mV, ensuring accurate and precise amplification.
- Rail-to-Rail Output: Enables high-performance applications with minimal distortion.
- Unity-Gain Bandwidth: Up to 1MHz for reliable and efficient signal processing.
- Low Broadband Noise: 30nV/√Hz, reducing unwanted noise in electronic circuits.
- Low Input Bias Current: 10pA, making it suitable for applications where low current is required.
- Low Quiescent Current: 70µA per channel, suitable for low-power applications.
- Unity-Gain Stable: Ensures stability in unity-gain configurations.
- Internal RFI and EMI Filter: Enhances signal integrity by rejecting radio-frequency interference and electromagnetic interference.
- No Phase Reversal in Overdrive Conditions: Maintains signal integrity even in overdrive situations).
Applications
The LMV321AIDCKR is suitable for a wide range of applications, including:
- High-Performance Audio Systems: Where low noise and high signal fidelity are critical.
- Medical Devices: For precise signal conditioning and low-power consumption).
- Automotive Electronics: Including engine controls and audio systems).
- Sensors and Transducers: For accurate signal amplification and conditioning).
- Data Acquisition Systems: And analog-to-digital converters (ADCs) where precision is key).
- Digital Signal Processing (DSP) Applications: Where low noise and high stability are essential).
Q & A
- What is the LMV321AIDCKR?
The LMV321AIDCKR is a low-voltage, low-power, single operational amplifier from Texas Instruments, designed for applications requiring precision signal conditioning, low supply voltage, and low input bias current).
- How does the LMV321AIDCKR work?
The LMV321AIDCKR functions as a single precision operational amplifier with low input bias current and low offset voltage. It amplifies analog signals with high accuracy and stability, ideal for tasks that demand precise signal processing).
- How many pins does the LMV321AIDCKR have and what are the functions of the pinout configuration?
The LMV321AIDCKR has 5 pins in the SOT23 package. The pin configuration includes: OUT (output), VIN+ (non-inverting input), VIN- (inverting input), VCC (positive power supply), and GND (ground)).
- What are the pros and cons of the LMV321AIDCKR?
Pros:
- Low power consumption, suitable for battery-operated devices).
- Precision with low offset voltage and low drift).
- Rail-to-rail I/O for maximum signal swing).
- Compact package for space-efficient designs).
- Low input bias current for high input impedance applications).
- Single channel, limiting applications that require multiple channels).
- Limited bandwidth, may not be suitable for high-frequency applications).
- May require additional external components for optimal performance).
- Are there any equivalents or alternatives to the LMV321AIDCKR?
Alternatives include the MCP6001 from Microchip Technology, the TS912 from STMicroelectronics, and the MAX4274 from Maxim Integrated).
- What is the operating temperature range of the LMV321AIDCKR?
The operating temperature range is -40°C to 125°C).
- What is the typical quiescent current of the LMV321AIDCKR?
The typical quiescent current is 70µA per channel).
- Does the LMV321AIDCKR have any built-in filters?
Yes, it has an integrated RFI and EMI rejection filter).
- What is the maximum capacitive load drive of the LMV321AIDCKR?
The maximum capacitive load drive is 500 pF).