Overview
The LMP8640MKE-T/NOPB is a precision current sense amplifier manufactured by Texas Instruments. This electronic component is designed for applications requiring accurate current measurement in the presence of high input common-mode voltages. It is particularly suited for automotive electronics, industrial systems, and consumer applications. The LMP8640MKE-T/NOPB stands out for its fixed gain options, low offset voltage, and robust performance over a wide temperature range, making it a competitive choice for high-precision current sensing needs.
Key Specifications
| Parameter | Value | Unit | Notes |
|---|---|---|---|
| Supply Voltage | 2.7 - 12 | V | |
| Input Common Mode Voltage | -2 - 42 | V | |
| Gain | 20, 50, 100 | V/V | Fixed gain options |
| Gain Accuracy | ±0.25 | % | |
| Offset Voltage | 1160 | µV | Max |
| Bandwidth | 0.95 | MHz | |
| Operating Temperature | -40 - 125 | °C | |
| Package | SOT-23-6 | Surface mount |
Key Features
- Precision current sensing with fixed gain options (20 V/V, 50 V/V, 100 V/V).
- Low offset voltage ensures accurate measurements.
- Wide input common-mode voltage range (-2 V to 42 V).
- Robust performance over a wide temperature range (-40°C to 125°C).
- Compact SOT-23-6 package for space-constrained applications.
Applications
The LMP8640MKE-T/NOPB is widely used in automotive electronics for battery management and motor control systems. In industrial applications, it is employed for power supply monitoring and load current sensing. Additionally, it is suitable for consumer electronics, particularly in devices requiring precise current measurement and monitoring.
Q & A
1. What is the supply voltage range of the LMP8640MKE-T/NOPB?
The supply voltage range is 2.7 V to 12 V.
2. What are the fixed gain options available?
The fixed gain options are 20 V/V, 50 V/V, and 100 V/V.
3. What is the maximum offset voltage?
The maximum offset voltage is 1160 µV.
4. What is the operating temperature range?
The operating temperature range is -40°C to 125°C.
5. What package does the LMP8640MKE-T/NOPB come in?
It comes in a SOT-23-6 surface mount package.
6. What is the input common-mode voltage range?
The input common-mode voltage range is -2 V to 42 V.
7. Is the LMP8640MKE-T/NOPB suitable for automotive applications?
Yes, it is particularly suited for automotive electronics.
8. What is the gain accuracy of this amplifier?
The gain accuracy is ±0.25%.
9. Can this amplifier be used in industrial systems?
Yes, it is commonly used in industrial systems for power supply monitoring and load current sensing.
10. What is the bandwidth of the LMP8640MKE-T/NOPB?
The bandwidth is 0.95 MHz.
