Overview
The LF347MX/NOPB is a wide bandwidth quad JFET input operational amplifier produced by Texas Instruments. This device is part of the LF347 series and is known for its high speed, low input bias current, and internally trimmed offset voltage. It is designed to offer high performance in various analog circuits, making it suitable for applications requiring low noise, high slew rate, and wide bandwidth.
Key Specifications
| Parameter | Conditions | Min | Typ | Max |
|---|---|---|---|---|
| Supply Voltage | ±15V | - | - | ±18V |
| Differential Input Voltage | - | - | ±30V | |
| Input Offset Voltage | RS=10 kΩ, TA=25°C | 1 mV | 5 mV | 10 mV |
| Input Bias Current | Tj=25°C | 25 pA | 50 pA | 200 pA |
| Input Resistance | Tj=25°C | - | 10^12 Ω | - |
| Slew Rate | VS=±15V, TA=25°C | 8 V/μs | 13 V/μs | - |
| Gain-Bandwidth Product | VS=±15V, TA=25°C | 2.2 MHz | 4 MHz | - |
| Total Harmonic Distortion | AV=+10, RL=10k, VO=20 Vp-p, BW=20 Hz−20 kHz | - | <0.02% | - |
| Supply Current | - | 7.2 mA | 11 mA | - |
Key Features
- Internally trimmed input offset voltage: 5 mV max
- Low input bias current: 50 pA
- Low input noise current: 0.01 pA/√Hz
- Wide gain bandwidth: 4 MHz
- High slew rate: 13 V/μs
- Low supply current: 7.2 mA
- High input impedance: 10^12 Ω
- Low total harmonic distortion: ≤0.02%
- Fast settling time to 0.01%: 2 μs
Applications
The LF347MX/NOPB is suitable for a variety of high-speed analog applications, including:
- High-speed integrators
- Fast D/A converters
- Sample-and-hold circuits
- Circuits requiring low input offset voltage, low input bias current, high input impedance, and wide bandwidth
Q & A
- What is the maximum supply voltage for the LF347MX/NOPB?
The maximum supply voltage is ±18V. - What is the typical input offset voltage of the LF347MX/NOPB?
The typical input offset voltage is 5 mV. - What is the input bias current of the LF347MX/NOPB?
The input bias current is typically 50 pA. - What is the gain-bandwidth product of the LF347MX/NOPB?
The gain-bandwidth product is typically 4 MHz. - What is the slew rate of the LF347MX/NOPB?
The slew rate is typically 13 V/μs. - What is the total harmonic distortion of the LF347MX/NOPB?
The total harmonic distortion is less than or equal to 0.02%. - What is the typical supply current of the LF347MX/NOPB?
The typical supply current is 7.2 mA. - What is the input impedance of the LF347MX/NOPB?
The input impedance is 10^12 Ω. - What are some common applications of the LF347MX/NOPB?
Common applications include high-speed integrators, fast D/A converters, and sample-and-hold circuits. - What is the operating temperature range for the LF347MX/NOPB?
The operating temperature range is 0°C to 70°C.
