LF412CN Dual JFET Input Operational Amplifier 18V 1.8mA DIP-8
The LF412CN is a low-cost, high-speed, JFET input operational amplifier designed with internally trimmed input offset voltage and low input offset voltage drift. This dual op-amp requires a low supply current while maintaining a large gain bandwidth product and a fast slew rate. Featuring well-matched high-voltage JFET input devices, it provides exceptionally low input bias and offset currents.
Features
- Internally Trimmed Offset Voltage: 1 mV (Max)
- Low Input Offset Voltage Drift: 7 μV/°C (Typ)
- Low Input Bias Current: 50 pA
- Wide Gain Bandwidth: 3 MHz (Min)
- High Slew Rate: 10 V/μs (Min)
- Low Supply Current: 1.8 mA per amplifier
- High Input Impedance:
- Low Total Harmonic Distortion: ≤ 0.02%
- Low 1/f Noise Corner: 50 Hz
- Fast Settling Time (to 0.01%): 2 μs
Specifications
| Parameter | Conditions / Category | Value (Typical/Limit) | Unit |
|---|---|---|---|
| Absolute Maximum Ratings | |||
| Supply Voltage | Maximum Limit | ±18 | V |
| Differential Input Voltage | Maximum Limit | ±30 | V |
| Power Dissipation | PDIP Package | 670 | mW |
| Operating Temperature | Commercial (C) | 0 to 70 | °C |
| DC Electrical Characteristics (VS = ±15V, TA = 25°C) | |||
| Input Offset Voltage (VOS) | RS = 10 kΩ | 1.0 (Typ) / 3.0 (Max) | mV |
| Input Offset Current (IOS) | Tj = 25°C | 25 (Typ) / 100 (Max) | pA |
| Input Bias Current (IB) | Tj = 25°C | 50 (Typ) / 200 (Max) | pA |
| Input Resistance (RIN) | – | 1012 | Ω |
| Large Signal Voltage Gain (AVOL) | RL = 2 kΩ, VO = ±10V | 200 (Typ) / 25 (Min) | V/mV |
| Output Voltage Swing (VO) | RL = 10 kΩ | ±13.5 (Typ) / ±12 (Min) | V |
| Common-Mode Rejection Ratio (CMRR) | RS ≤ 10 kΩ | 100 (Typ) / 70 (Min) | dB |
| Supply Current (IS) | VO = 0V, Both Amplifiers | 3.6 (Typ) / 6.5 (Max) | mA |
| AC Electrical Characteristics (VS = ±15V, TA = 25°C) | |||
| Slew Rate (SR) | – | 15 (Typ) / 8 (Min) | V/µs |
| Gain-Bandwidth Product (GBW) | – | 4 (Typ) / 2.7 (Min) | MHz |
| Total Harmonic Distortion (THD) | AV = +10, RL = 10 kΩ | ≤ 0.02 | % |
| Equivalent Input Noise Voltage (en) | f = 1 kHz | 25 | nV/√Hz |
| Equivalent Input Noise Current (in) | f = 1 kHz | 0.01 | pA/√Hz |
Applications
- High-Speed Integrators
- Fast D/A Converters
- Sample and Hold Circuits
- Circuits requiring low input offset voltage and drift
- High input impedance and wide bandwidth applications
Package Content
- 1 x LF412CN Dual JFET Input Operational Amplifier 18V 1.8mA DIP-8