Overview
The LMV931SQ3T2G from onsemi is a single-channel, low-voltage, CMOS operational amplifier designed for a wide range of applications. It features rail-to-rail input and output swing, making it ideal for battery-operated and portable devices. This amplifier operates on single-sided power supplies ranging from 1.8 V to 5.0 V and is known for its low quiescent current, which enhances its suitability for power-sensitive designs. The LMV931SQ3T2G is packaged in a compact SC70-5 package, contributing to its space-saving and noise-reducing capabilities.
Key Specifications
| Parameter | Symbol | Condition | Min | Typ | Max | Unit |
|---|---|---|---|---|---|---|
| Supply Voltage | VS | 1.8 | 5.0 | V | ||
| Input Offset Voltage | VIO | −40°C to +125°C | 1 | 6 | 7.5 | mV |
| Input Offset Voltage Average Drift | TCVIO | 5.5 | μV/°C | |||
| Input Bias Current | IB | −40°C to +125°C | < 1 | nA | ||
| Input Offset Current | IIO | −40°C to +125°C | < 1 | nA | ||
| Supply Current (per Channel) | ICC | In Active Mode, VS = 1.8 V | 75 | 185 | 205 | μA |
| Slew Rate | SR | 0.48 | V/μs | |||
| Gain Bandwidth Product | GBWP | 1.5 | MHz | |||
| Output Swing (VOH) | VOH | RL = 600 Ω, VIN = ±100 mV | 2.55 | 2.62 | 2.53 | V |
| Output Swing (VOL) | VOL | RL = 600 Ω, VIN = ±100 mV | 0.083 | 0.11 | 0.13 | V |
Key Features
- Rail-to-rail input and output swing, enhancing signal-to-noise performance.
- Low quiescent current (typically 185 μA per channel), suitable for battery-operated devices.
- Compact SC70-5 package, reducing noise pickup and saving space.
- Wide operating temperature range (−40°C to +125°C).
- Low input offset voltage (typically 6 mV) and low input bias current (< 1 nA).
- High common mode rejection ratio (CMRR) of 50 dB to 70 dB.
- Low total harmonic distortion (THD) of 0.022% at 1 kHz.
Applications
- Battery-operated and portable devices such as notebook computers and handheld instruments.
- Low-power audio and video circuits.
- Medical devices requiring low noise and high accuracy.
- Automotive and industrial control systems where low voltage and low power consumption are critical.
- General-purpose analog signal processing where rail-to-rail operation is beneficial.
Q & A
- What is the operating voltage range of the LMV931SQ3T2G?
The LMV931SQ3T2G operates on single-sided power supplies ranging from 1.8 V to 5.0 V. - What is the typical input offset voltage of the LMV931SQ3T2G?
The typical input offset voltage is 6 mV. - What is the quiescent current of the LMV931SQ3T2G?
The typical quiescent current is 185 μA per channel. - What is the slew rate of the LMV931SQ3T2G?
The slew rate is 0.48 V/μs. - What is the gain bandwidth product of the LMV931SQ3T2G?
The gain bandwidth product is 1.5 MHz. - What are the typical output swing values for the LMV931SQ3T2G?
The typical output swing values are VOH = 2.55 V and VOL = 0.083 V for RL = 600 Ω. - What is the common mode rejection ratio (CMRR) of the LMV931SQ3T2G?
The CMRR is between 50 dB and 70 dB. - What is the total harmonic distortion (THD) of the LMV931SQ3T2G?
The THD is 0.022% at 1 kHz. - In what package is the LMV931SQ3T2G available?
The LMV931SQ3T2G is available in a compact SC70-5 package. - What are some typical applications of the LMV931SQ3T2G?
Typical applications include battery-operated devices, low-power audio and video circuits, medical devices, and automotive and industrial control systems.
