Overview
The LMV821SQ3T2G is a single-channel, low-voltage, rail-to-rail operational amplifier produced by onsemi. This device is part of the LMV821 and LMV824 family, known for their low input voltage offset and drift versus temperature. Despite their low quiescent current requirements, these amplifiers offer a 5 MHz bandwidth and a 1.4 V/μs slew rate, making them suitable for a variety of applications requiring high performance and low power consumption.
The LMV821SQ3T2G is available in a space-saving SC70-5 package, which is Pb-free and RoHS compliant. This amplifier is designed to operate over a supply voltage range of 2.7 V to 5.5 V, making it versatile for different system designs.
Key Specifications
| Parameter | Symbol | Conditions | Min | Typ | Max | Unit |
|---|---|---|---|---|---|---|
| Supply Voltage (Operating Range) | VS | 2.7 | 5.5 | V | ||
| Input Offset Voltage | VIO | TA = −40°C to +85°C | 1 | 3.5 | 4 | mV |
| Input Offset Voltage Average Drift | TCVOS | TA = −40°C to +85°C | 1 | μV/°C | ||
| Bandwidth | GBWP | 5.6 | MHz | |||
| Slew Rate | SR | 1.4 | V/μs | |||
| Output Swing (RL = 600 Ω) | VOH/VOL | RL = 600 Ω, VO = 0.5 V to 2.5 V | 1.35/0.13 | 2.58/0.21 | 2.4/0.3 | V |
| Output Current | IO | Sourcing, VO = 0 V | 12 | 20 | 45 | mA |
| Supply Current | ICC | TA = −40°C to +85°C | 0.242 | 0.3 | 0.5 | mA |
Key Features
- Low Offset Voltage: 3.5 mV maximum, ensuring high accuracy in signal processing.
- Low Offset Drift: 1 μV/°C, providing stability over a wide temperature range.
- High Bandwidth: 5 MHz, suitable for high-frequency applications.
- Rail-to-Rail Output Swing: Capable of driving loads with output swing from 0 V to V+.
- Capacitive Load Driving: Can drive highly capacitive loads with the addition of a pull-up or isolation resistor.
- Small Packages: Available in SC70-5 package, which is Pb-free and RoHS compliant.
- Low Power Consumption: Low quiescent current requirements, making it energy-efficient.
Applications
- Notebook Computers: Ideal for battery-powered devices due to low power consumption.
- PDAs and Handheld Devices: Suitable for portable electronics requiring low voltage and high performance.
- Modem Transmitter/Receivers: Used in communication systems where high bandwidth and low noise are critical.
- Voltage References and Oscillators: Can be used in various circuit configurations such as voltage references and Wien bridge oscillators.
- Comparators with Hysteresis: Useful in applications requiring precise threshold detection and hysteresis.
Q & A
- What is the operating supply voltage range of the LMV821SQ3T2G?
The operating supply voltage range is from 2.7 V to 5.5 V.
- What is the typical input offset voltage of the LMV821SQ3T2G?
The typical input offset voltage is 3.5 mV.
- What is the bandwidth of the LMV821SQ3T2G?
The bandwidth is 5.6 MHz.
- Can the LMV821SQ3T2G drive highly capacitive loads?
Yes, it can drive highly capacitive loads by adding a pull-up or isolation resistor.
- What is the maximum output current of the LMV821SQ3T2G?
The maximum output current is 45 mA when sourcing and 40 mA when sinking.
- Is the LMV821SQ3T2G Pb-free and RoHS compliant?
Yes, it is Pb-free and RoHS compliant.
- What are the typical applications of the LMV821SQ3T2G?
Typical applications include notebook computers, PDAs, modem transmitter/receivers, and various analog circuits.
- What is the slew rate of the LMV821SQ3T2G?
The slew rate is 1.4 V/μs.
- What is the input common-mode voltage range of the LMV821SQ3T2G?
The input common-mode voltage range is from −0.5 V to (V+) + 0.5 V.
- What is the thermal resistance of the SC70-5 package?
The thermal resistance of the SC70-5 package is 280 °C/W.
