Overview
The LF398MX/NOPB is a monolithic sample and hold circuit produced by Texas Instruments. It is designed for applications requiring precise signal sampling and holding, particularly in analog-to-digital conversion systems. This product is part of Texas Instruments' extensive portfolio of analog and mixed-signal ICs, targeting industries such as industrial automation, instrumentation, and telecommunications. The LF398MX/NOPB stands out for its fast acquisition time, low droop rate, and high accuracy, making it a competitive choice for high-performance systems.
Key Specifications
| Parameter | Value | Unit | Notes |
|---|---|---|---|
| Acquisition Time | 20 | µs | Typical |
| Operating Temperature | 0 to 70 | °C | |
| Supply Voltage | ±5 to ±18 | V | |
| Package | 14-SOIC | ||
| Droop Rate | 1 | mV/ms | Typical |
| Input Bias Current | 10 | nA | Maximum |
| Gain Bandwidth Product | 1.5 | MHz | |
| Output Voltage Swing | ±10 | V | With ±15V supply |
Key Features
- Fast acquisition time of 20 µs for high-speed sampling.
- Low droop rate of 1 mV/ms ensures signal integrity during hold mode.
- Wide supply voltage range of ±5V to ±18V for flexible system integration.
- High input impedance minimizes loading effects on the signal source.
- 14-SOIC package for compact and robust designs.
Applications
The LF398MX/NOPB is widely used in applications requiring precise signal sampling and holding. It is ideal for analog-to-digital converters (ADCs), data acquisition systems, and signal processing circuits. In industrial automation, it ensures accurate measurement and control of analog signals. In telecommunications, it aids in signal conditioning and filtering. Additionally, it is employed in medical instrumentation for high-precision data acquisition and in automotive electronics for sensor signal processing.
Q & A
1. What is the typical acquisition time of the LF398MX/NOPB?
The typical acquisition time is 20 µs.
2. What is the operating temperature range of this component?
It operates within a temperature range of 0 to 70 °C.
3. What is the supply voltage range for the LF398MX/NOPB?
The supply voltage range is ±5V to ±18V.
4. What package does the LF398MX/NOPB come in?
It is available in a 14-SOIC package.
5. What is the droop rate of this sample and hold circuit?
The typical droop rate is 1 mV/ms.
6. What is the input bias current of the LF398MX/NOPB?
The maximum input bias current is 10 nA.
7. What is the gain bandwidth product of this component?
The gain bandwidth product is 1.5 MHz.
8. What is the output voltage swing with a ±15V supply?
The output voltage swing is ±10V.
9. What are the typical applications of the LF398MX/NOPB?
It is used in ADCs, data acquisition systems, and signal processing circuits.
10. How does the LF398MX/NOPB ensure signal integrity during hold mode?
Its low droop rate of 1 mV/ms ensures minimal signal degradation during hold mode.
