JFET-Input Operational Amplifiers Low Supply Current High Speed The LF155H is a JFET-input operational amplifier manufactured by National Semiconductor (NSC). Below are its specifications, descriptions, and features based on factual information from Ic-phoenix technical data files:
### **Specifications:**
- **Supply Voltage Range:** ±5V to ±18V
- **Input Offset Voltage:** 3 mV (max)
- **Input Bias Current:** 30 pA (typ)
- **Input Offset Current:** 3 pA (typ)
- **Input Resistance:** 10^12 Ω (typ)
- **Large Signal Voltage Gain:** 25 V/mV (min)
- **Slew Rate:** 3 V/µs (typ)
- **Gain Bandwidth Product:** 3 MHz (typ)
- **Common Mode Rejection Ratio (CMRR):** 100 dB (typ)
- **Power Supply Rejection Ratio (PSRR):** 100 dB (typ)
- **Operating Temperature Range:** -55°C to +125°C
- **Package Options:** TO-99 metal can, DIP-8
### **Descriptions:**
- The LF155H is a high-performance JFET-input operational amplifier designed for precision applications.
- It features low input bias current, high input impedance, and low noise, making it suitable for instrumentation and audio applications.
- The device is internally compensated for stable operation in unity-gain configurations.
### **Features:**
- **JFET Input:** Provides very high input impedance and low input bias current.
- **Low Noise:** Optimized for low-noise performance in sensitive circuits.
- **Wide Bandwidth:** 3 MHz gain bandwidth product for high-frequency applications.
- **High Slew Rate:** 3 V/µs ensures fast signal response.
- **Low Power Consumption:** Operates efficiently across a wide supply range.
- **Robust Design:** Suitable for military and industrial temperature ranges.
This information is based on the manufacturer's datasheet and technical documentation.
