Overview
The LMV797MM/NOPB, produced by Texas Instruments, is a dual, low-noise, CMOS input operational amplifier. This device is part of the LMV796/LMV796Q/LMV797 family, known for its high performance in low voltage and low noise systems. The LMV797 operates with a supply voltage range of 1.8V to 5.5V and is unity gain stable with a gain bandwidth of 17 MHz. It features a rail-to-rail output stage capable of driving a 600Ω load and sourcing up to 60 mA of current. The device is ideal for applications requiring low power consumption and high signal integrity, such as photodiode amplifiers, active filters, and sensor interface applications.
Key Specifications
| Parameter | Value | Units |
|---|---|---|
| Input Referred Voltage Noise | 5.8 nV/√Hz | nV/√Hz |
| Input Bias Current | 100 fA | fA |
| Unity Gain Bandwidth | 17 MHz | MHz |
| Supply Current per Channel | 1.30 mA | mA |
| Rail-to-Rail Output Swing @ 10 kΩ Load | 25 mV from Rail | mV |
| Rail-to-Rail Output Swing @ 2 kΩ Load | 45 mV from Rail | mV |
| Guaranteed Performance at 2.5V and 5.0V | Yes | |
| Total Harmonic Distortion @ 1kHz, 600Ω | 0.01% | % |
| Temperature Range | −40°C to 125°C | °C |
| Package | VSSOP (DGK) with 8 pins |
Key Features
- Low input voltage noise density of 5.8 nV/√Hz
- Low input bias current of 100 fA
- Unity gain bandwidth of 17 MHz
- Rail-to-rail output swing capable of driving a 600Ω load
- Guaranteed performance at 2.5V and 5.0V supply voltages
- Total harmonic distortion of 0.01% @ 1kHz, 600Ω
- Operating temperature range of −40°C to 125°C
- CMOS input stage with input common mode voltage range including ground
Applications
- Photodiode Amplifiers
- Active Filters and Buffers
- Low Noise Signal Processing
- Medical Instrumentation
- Sensor Interface Applications
- Automotive applications (LMV796Q is AEC-Q100 Grade 1 Qualified)
Q & A
- What is the input referred voltage noise of the LMV797?
The input referred voltage noise of the LMV797 is 5.8 nV/√Hz. - What is the input bias current of the LMV797?
The input bias current of the LMV797 is 100 fA. - What is the unity gain bandwidth of the LMV797?
The unity gain bandwidth of the LMV797 is 17 MHz. - What is the supply current per channel for the LMV797?
The supply current per channel for the LMV797 is 1.30 mA. - What is the rail-to-rail output swing capability of the LMV797?
The LMV797 has a rail-to-rail output swing capable of driving a 600Ω load with 25 mV from rail at 10 kΩ load and 45 mV from rail at 2 kΩ load. - What are the guaranteed supply voltages for the LMV797?
The LMV797 has guaranteed performance at 2.5V and 5.0V supply voltages. - What is the total harmonic distortion of the LMV797 at 1kHz, 600Ω?
The total harmonic distortion of the LMV797 at 1kHz, 600Ω is 0.01%. - What is the operating temperature range of the LMV797?
The operating temperature range of the LMV797 is −40°C to 125°C. - In what package is the LMV797 available?
The LMV797 is available in an 8-pin VSSOP (DGK) package. - What are some typical applications of the LMV797?
The LMV797 is typically used in photodiode amplifiers, active filters, low noise signal processing, medical instrumentation, sensor interface applications, and automotive applications.
