Overview
The LMV774MTX, part of the LMV771/LMV772/LMV772Q/LMV774 family, is a quad low noise precision operational amplifier produced by Texas Instruments. This device is designed for use in a wide range of applications requiring high precision, low noise, and low voltage operation. The LMV774MTX operates over a voltage range of 2.7V to 5.0V and features rail-to-rail output swing, making it suitable for various precision and low-voltage systems.
The device is available in a TSSOP-14 package and is characterized by its extended operating temperature range of −40°C to 125°C, low input bias current, and high gain-bandwidth product of 3.5 MHz. The LMV774MTX is ideal for applications where precision and low noise are critical, such as in instrumentation amplifiers, transducer amplifiers, and data acquisition systems.
Key Specifications
| Parameter | Condition | Min | Typ | Max | Units |
|---|---|---|---|---|---|
| Input Offset Voltage (VOS) | TA = 25°C, V+ = 2.7V | 0.25 | 0.85 | 1.0 | mV |
| Input Offset Voltage Average Drift (TCVOS) | −0.35 | −0.23 | µV/°C | ||
| Input Bias Current (IB) | VCM = 1V | 100 | 250 | pA | |
| Supply Current (Per Amplifier) (IS) | VO = 0V | 600 | 900 | µA | |
| Slew Rate (SR) | AV = +1, RL = 10 kΩ | 1.4 | V/µs | ||
| Gain-Bandwidth Product (GBW) | 3.5 | MHz | |||
| Input-Referred Voltage Noise (en) | f = 10 kHz | 6.5 | nV/√Hz | ||
| Input-Referred Voltage Noise (en) (l/f) | f = 100 Hz | 12 | nV/√Hz |
Key Features
- Low input offset voltage: Maximum VOS of 1 mV at room temperature and 1.2 mV over the extended temperature range.
- Low noise: Input-referred voltage noise of 6.5 nV/√Hz at 10 kHz and 12 nV/√Hz at 100 Hz.
- Rail-to-rail output swing: Ensures maximum output voltage range.
- Extended operating temperature range: −40°C to 125°C.
- Low input bias current: 100 pA to 250 pA.
- High gain-bandwidth product: 3.5 MHz.
- Low supply current: 600 µA to 900 µA per amplifier.
- Available in TSSOP-14 package.
- AEC-Q100 Grade 1 qualified for automotive applications (LMV772Q).
Applications
- Instrumentation amplifiers: Ideal for measuring small differential signals with high accuracy.
- Transducer amplifiers: Suitable for amplifying signals from transducers.
- Data acquisition systems: Used in precision data acquisition and signal processing.
- Precision current sensing: For accurate current measurement in various systems.
- Active filters and buffers: Utilized in signal conditioning and filtering applications.
- Sample and hold circuits: Essential in analog-to-digital conversion systems.
- Portable/battery-powered electronics: Due to its low power consumption and small package size.
- Automotive systems: Qualified for use in automotive applications with AEC-Q100 Grade 1 certification (LMV772Q).
Q & A
- What is the maximum input offset voltage of the LMV774MTX?
The maximum input offset voltage of the LMV774MTX is 1 mV at room temperature and 1.2 mV over the extended temperature range.
- What is the operating temperature range of the LMV774MTX?
The operating temperature range of the LMV774MTX is −40°C to 125°C.
- What is the gain-bandwidth product of the LMV774MTX?
The gain-bandwidth product of the LMV774MTX is 3.5 MHz.
- What is the typical supply current per amplifier for the LMV774MTX?
The typical supply current per amplifier for the LMV774MTX is 600 µA to 900 µA.
- Does the LMV774MTX have rail-to-rail output swing?
Yes, the LMV774MTX features rail-to-rail output swing.
- What are some common applications of the LMV774MTX?
The LMV774MTX is commonly used in instrumentation amplifiers, transducer amplifiers, data acquisition systems, precision current sensing, active filters and buffers, sample and hold circuits, portable electronics, and automotive systems.
- What package type is the LMV774MTX available in?
The LMV774MTX is available in a TSSOP-14 package.
- Is the LMV774MTX suitable for automotive applications?
Yes, the LMV772Q variant is AEC-Q100 Grade 1 qualified, making it suitable for automotive applications.
- What is the input-referred voltage noise of the LMV774MTX at 10 kHz?
The input-referred voltage noise of the LMV774MTX at 10 kHz is 6.5 nV/√Hz.
- What is the slew rate of the LMV774MTX?
The slew rate of the LMV774MTX is 1.4 V/µs.
