Overview
The LMC6462AIMX/NOPB is a dual micropower, rail-to-rail input and output CMOS operational amplifier produced by Texas Instruments. This device is part of the LMC6462/4 series, which combines low power consumption with high performance, making it suitable for a variety of applications, including battery-powered systems and medical devices. The LMC6462 is known for its ultra-low supply current of 20 μA per amplifier, ensuring minimal power consumption while maintaining high accuracy and reliability.
Key Specifications
| Parameter | Typical Value | Units | Conditions |
|---|---|---|---|
| Supply Voltage | 3.0V to 15.5V | V | V+ ≤ V- ≤ 15.5V |
| Input Offset Voltage (VOS) | 0.25 to 3.0 | mV | TJ = 25°C, V+ = 5V, V- = 0V |
| Input Offset Current (IOS) | 0.075 to 5 | pA | TJ = 25°C, V+ = 5V, V- = 0V |
| Common Mode Rejection Ratio (CMRR) | 85 dB | dB | 0V ≤ VCM ≤ 15.0V, V+ = 15V |
| Power Supply Rejection Ratio (PSRR) | 85 dB | dB | 5V ≤ V+ ≤ 15V, V- = 0V |
| Supply Current (IS) | 40 to 55 | μA | Dual, V+ = +5V, VO = V+/2 |
| Output Short Circuit Current (ISC) | 27 to 38 | mA | Sourcing, VO = 0V, V+ = 5V or 15V |
| Junction Temperature | -55°C to +125°C | °C | LMC6462AM, LMC6464AM |
Key Features
- Rail-to-Rail Input and Output: The LMC6462 provides a full rail-to-rail input and output range, allowing it to operate effectively across the entire supply voltage range.
- Ultra Low Supply Current: With a supply current of only 20 μA per amplifier, this device is highly suitable for battery-powered applications where power efficiency is crucial.
- High CMRR and PSRR: The device offers high common mode rejection ratio (CMRR) and power supply rejection ratio (PSRR), ensuring high accuracy and stability in various operating conditions.
- Low Input Offset Voltage: The input offset voltage is typically very low, ranging from 0.25 to 3.0 mV, which is beneficial for precise signal processing.
- Capacitive Load Tolerance: The LMC6462 can drive capacitive loads up to 200 pF without oscillating, making it versatile for different application scenarios.
Applications
- Battery-Powered Systems: The low power consumption makes the LMC6462 ideal for use in battery-powered devices, extending battery life and reducing the need for frequent replacements.
- Medical Devices: The high accuracy and stability of the LMC6462 make it suitable for medical applications where precise signal processing is critical.
- Portable Instruments: The device can be used in portable light measuring instruments and other handheld devices due to its low power and compact design.
- General Analog Circuits: The LMC6462 can be used in a wide range of analog circuits, including amplifiers, filters, and integrators, due to its versatile performance characteristics.
Q & A
- What is the typical supply current of the LMC6462?
The typical supply current of the LMC6462 is 20 μA per amplifier.
- What is the input offset voltage range of the LMC6462?
The input offset voltage range is typically between 0.25 and 3.0 mV.
- What is the common mode rejection ratio (CMRR) of the LMC6462?
The CMRR is typically 85 dB.
- Can the LMC6462 drive capacitive loads?
Yes, the LMC6462 can drive capacitive loads up to 200 pF without oscillating.
- What is the operating temperature range for the LMC6462AM?
The operating temperature range for the LMC6462AM is -55°C to +125°C.
- What is the maximum output short circuit current of the LMC6462?
The maximum output short circuit current is 38 mA sourcing and 27 mA sinking at V+ = 5V.
- Is the LMC6462 suitable for medical applications?
Yes, the LMC6462 is suitable for medical applications due to its high accuracy and stability.
- What is the typical power supply rejection ratio (PSRR) of the LMC6462?
The typical PSRR is 85 dB.
- Can the LMC6462 be used in battery-powered systems?
Yes, the LMC6462 is highly suitable for battery-powered systems due to its ultra-low supply current.
- What is the input common-mode voltage range of the LMC6462?
The input common-mode voltage range is from 0V to the supply voltage (V+).
