Overview
The LMP7731MF/NOPB is a single, low noise, rail-to-rail input and output operational amplifier produced by Texas Instruments. It is part of the LMP™ precision amplifier family and is ideal for precision and low noise applications with low voltage requirements. This amplifier is characterized by its low voltage noise of 2.9 nV/√Hz and a high gain bandwidth of 22 MHz, making it suitable for applications that demand accurate signal conditioning.
Key Specifications
| Parameter | Typical Value | Units |
|---|---|---|
| Input Voltage Noise | 2.9 nV/√Hz @ f = 1 kHz | nV/√Hz |
| Common Mode Rejection Ratio (CMRR) | 130 dB | dB |
| Open Loop Gain | 130 dB | dB |
| Gain Bandwidth Product (GBW) | 22 MHz | MHz |
| Slew Rate | 2.4 V/μs | V/μs |
| Supply Voltage Range | 1.8V to 5.5V | V |
| Operating Temperature Range | −40°C to 125°C | °C |
| Input Bias Current | ±1.5 nA | nA |
| Supply Current per Channel | 2.2 mA | mA |
| Total Harmonic Distortion + Noise (THD+N) | 0.002% @ f = 1 kHz, AV = 1, RL = 2 kΩ | % |
Key Features
- Low voltage noise of 2.9 nV/√Hz at 1 kHz.
- High gain bandwidth product of 22 MHz.
- Low input bias current of ±1.5 nA.
- Rail-to-rail input and output capability.
- Wide supply voltage range from 1.8V to 5.5V.
- Low power consumption with a supply current of 2.2 mA per channel.
- High common mode rejection ratio (CMRR) of 130 dB.
- Available in space-saving 5-Pin SOT-23 and 8-Pin SOIC packages.
Applications
- Gas Analysis Instruments
- Photometric Instrumentation
- Medical Instrumentation
- Battery-operated portable applications
Q & A
- What is the typical input voltage noise of the LMP7731? The typical input voltage noise is 2.9 nV/√Hz at 1 kHz.
- What is the gain bandwidth product (GBW) of the LMP7731? The GBW is 22 MHz.
- What is the input bias current of the LMP7731? The input bias current is ±1.5 nA.
- What is the supply voltage range of the LMP7731? The supply voltage range is from 1.8V to 5.5V.
- What is the operating temperature range of the LMP7731? The operating temperature range is from −40°C to 125°C.
- What are the typical applications of the LMP7731? Typical applications include gas analysis instruments, photometric instrumentation, medical instrumentation, and battery-operated portable applications.
- What are the available packages for the LMP7731? The LMP7731 is available in 5-Pin SOT-23 and 8-Pin SOIC packages.
- What is the slew rate of the LMP7731? The slew rate is 2.4 V/μs.
- What is the total harmonic distortion + noise (THD+N) of the LMP7731? The THD+N is 0.002% at f = 1 kHz, AV = 1, RL = 2 kΩ.
- How much current does the LMP7731 consume per channel? The supply current per channel is 2.2 mA.
