Overview
The LM6142AIM/NOPB is a high-performance, dual operational amplifier (op-amp) produced by Texas Instruments. It is part of the LM6142/LM6144 series, known for its rail-to-rail input and output capabilities, making it highly versatile for various applications. This op-amp is designed to operate over a wide range of supply voltages from 1.8V to 24V, making it suitable for both low-voltage and high-voltage systems. The LM6142AIM/NOPB is particularly useful in battery-powered systems, portable instrumentation, and other applications where low power consumption and high performance are critical.
Key Specifications
| Parameter | Conditions | Typical Value | Units |
|---|---|---|---|
| Supply Voltage | 1.8V to 24V | - | V |
| Input Common-Mode Voltage Range | -0.25V to 5.25V | - | V |
| Output Swing | 0.005V to 4.995V (RL = 100kΩ) | - | V |
| Gain-Bandwidth Product | f = 50 kHz | 17 MHz | MHz |
| Slew Rate (Small Signal) | - | 5 V/μs | V/μs |
| Slew Rate (Large Signal) | - | 30 V/μs | V/μs |
| Input Offset Voltage | - | 0.3 mV to 2.5 mV | mV |
| Input Bias Current | - | 170 nA to 300 nA | nA |
| Common Mode Rejection Ratio (CMRR) | 0V ≤ VCM ≤ 5V | 82 dB to 107 dB | dB |
| Power Supply Rejection Ratio (PSRR) | 5V ≤ V+ ≤ 24V | 78 dB to 87 dB | dB |
| Operating Temperature Range | -40°C to +85°C | - | °C |
| Junction Temperature | -65°C to +150°C | - | °C |
Key Features
- Rail-to-Rail Input and Output: The LM6142AIM/NOPB features a greater than rail-to-rail input voltage range and rail-to-rail output swing, providing maximum dynamic range at the output, especially in low-voltage applications.
- High Gain-Bandwidth Product: With a gain-bandwidth product of 17 MHz at 50 kHz, this op-amp is suitable for high-frequency applications.
- Low Power Consumption: Operating with supply currents as low as 750 μA per amplifier, it is ideal for battery-powered systems.
- Enhanced Slew Rate: The unique input stage design ensures a high slew rate that is a function of the input signal amplitude, reducing phase lag and improving stability when driving capacitive loads.
- Driving Capacitive Loads: The LM6142AIM/NOPB can drive capacitive loads up to 1000 pF without oscillation, thanks to its improved slew rate and phase margin.
- Wide Operating Temperature Range: It operates over a temperature range of -40°C to +85°C, making it suitable for a variety of environmental conditions.
Applications
- Battery-Powered Systems: Its low power consumption makes it an excellent choice for battery-operated devices.
- Portable Instrumentation: The high performance and low power characteristics are beneficial in portable instrumentation applications.
- Audio and Video Equipment: The rail-to-rail input and output capabilities and high gain-bandwidth product make it suitable for audio and video signal processing.
- Medical Devices: The wide operating temperature range and stability in driving capacitive loads are advantageous in medical device applications.
- Industrial Control Systems: It can be used in various industrial control systems where high accuracy and stability are required.
Q & A
- What is the supply voltage range for the LM6142AIM/NOPB?
The supply voltage range is from 1.8V to 24V.
- What is the input common-mode voltage range for this op-amp?
The input common-mode voltage range is from -0.25V to 5.25V.
- What is the gain-bandwidth product of the LM6142AIM/NOPB?
The gain-bandwidth product is 17 MHz at 50 kHz.
- How much current does the LM6142AIM/NOPB typically consume per amplifier?
The typical supply current per amplifier is 750 μA.
- Can the LM6142AIM/NOPB drive capacitive loads?
Yes, it can drive capacitive loads up to 1000 pF without oscillation.
- What is the operating temperature range for this op-amp?
The operating temperature range is from -40°C to +85°C.
- What are the typical slew rates for the LM6142AIM/NOPB?
The small signal slew rate is 5 V/μs, and the large signal slew rate is 30 V/μs.
- What is the common mode rejection ratio (CMRR) of the LM6142AIM/NOPB?
The CMRR ranges from 82 dB to 107 dB.
- What is the power supply rejection ratio (PSRR) of the LM6142AIM/NOPB?
The PSRR ranges from 78 dB to 87 dB.
- What are some typical applications for the LM6142AIM/NOPB?
Typical applications include battery-powered systems, portable instrumentation, audio and video equipment, medical devices, and industrial control systems.
