Overview
The LPV821DBVR is a single-channel, nanopower, zero-drift operational amplifier manufactured by Texas Instruments. Designed for 'always-on' sensing applications in wireless and wired devices, this component is particularly suited for scenarios requiring low input offset voltage. The LPV821DBVR stands out in the market for its ultra-low power consumption and high precision, making it ideal for applications in portable electronics, industrial automation, and wireless sensor nodes. Its unique selling points include a zero-drift architecture, which ensures minimal offset voltage and drift over time and temperature, and its ability to operate at a remarkably low quiescent current of 650nA.
Key Specifications
| Parameter | Value | Unit | Notes |
|---|---|---|---|
| Number of Channels | 1 | ||
| Total Supply Voltage (Max) | 3.6 | V | |
| Total Supply Voltage (Min) | 1.7 | V | |
| Offset Voltage @25°C (Max) | 0.01 | mV | |
| Gain Bandwidth Product (Typ) | 0.008 | MHz | |
| Slew Rate (Typ) | 0.0033 | V/µs | |
| Offset Drift (Typ) | 0.02 | µV/°C | |
| Quiescent Current per Channel (Typ) | 0.00065 | mA | |
| Input Noise Voltage @1kHz (Typ) | 215 | nV/√Hz | |
| Common Mode Rejection Ratio (Typ) | 125 | dB | |
| Operating Temperature Range | -40 to 125 | °C | |
| Output Current (Typ) | 21 | mA |
Key Features
- Zero-drift architecture for minimal offset voltage and drift over time and temperature.
- Ultra-low quiescent current of 650nA, making it suitable for battery-powered applications.
- Rail-to-rail input and output for maximum dynamic range.
- EMI-hardened design to ensure reliable operation in noisy environments.
- Industry-standard SOT-23-5 package for ease of integration.
Applications
The LPV821DBVR is widely used in various high-precision applications. In wireless sensor nodes, it enables long battery life with its low power consumption. In industrial automation, it provides accurate sensing and control. Portable electronics benefit from its small form factor and efficiency. Additionally, it is used in home automation and factory automation devices where precision and reliability are critical.
Q & A
1. What is the operating voltage range of the LPV821DBVR?
The operating voltage range is from 1.7V to 3.6V.
2. What is the typical quiescent current of the LPV821DBVR?
The typical quiescent current is 650nA.
3. What is the maximum offset voltage at 25°C?
The maximum offset voltage at 25°C is 10µV.
4. What is the gain bandwidth product of the LPV821DBVR?
The gain bandwidth product is 8kHz.
5. Is the LPV821DBVR suitable for battery-powered applications?
Yes, its ultra-low quiescent current makes it ideal for battery-powered applications.
6. What is the operating temperature range of the LPV821DBVR?
The operating temperature range is from -40°C to 125°C.
7. Does the LPV821DBVR support rail-to-rail operation?
Yes, it supports rail-to-rail input and output.
8. What is the typical slew rate of the LPV821DBVR?
The typical slew rate is 3.3mV/µs.
9. Is the LPV821DBVR EMI-hardened?
Yes, it is designed to be EMI-hardened for reliable operation in noisy environments.
10. What package does the LPV821DBVR come in?
It comes in an industry-standard SOT-23-5 package.
