Overview
The LF412CN is a high-performance dual operational amplifier produced by Texas Instruments. It features JFET input stages, which provide low input bias and offset currents. These amplifiers are known for their low cost, high speed, and very low input offset voltage and drift. They are designed to operate with low supply current while maintaining a large gain bandwidth product and fast slew rate, making them suitable for a variety of applications requiring high precision and speed.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Input Offset Voltage | 1 mV (Max) | mV |
| Input Offset Voltage Drift | 7 µV/°C (Typ) | µV/°C |
| Input Bias Current | 50 pA | pA |
| Input Noise Current | 0.01 pA / √Hz | pA / √Hz |
| Gain Bandwidth Product | 3 MHz (Min) | MHz |
| Slew Rate | 10 V/µs (Min) | V/µs |
| Supply Current per Amplifier | 1.8 mA | mA |
| Input Impedance | 10^12 Ω | Ω |
| Total Harmonic Distortion | ≤0.02% | % |
| 1/f Noise Corner | 50 Hz | Hz |
| Settling Time to 0.01% | 2 µs | µs |
| Supply Voltage Range | 10 V to 36 V | V |
| Operating Temperature Range | 0°C to 70°C | °C |
| Package Type | DIP (8 Pins) |
Key Features
- Internally trimmed offset voltage: 1 mV (Max)
- Low input offset voltage drift: 7 µV/°C (Typ)
- Low input bias current: 50 pA
- Low input noise current: 0.01 pA / √Hz
- Wide gain bandwidth: 3 MHz (Min)
- High slew rate: 10 V/µs (Min)
- Low supply current: 1.8 mA per amplifier
- High input impedance: 10^12 Ω
- Low total harmonic distortion: ≤0.02%
- Low 1/f noise corner: 50 Hz
- Fast settling time to 0.01%: 2 µs
Applications
The LF412CN dual operational amplifiers are suitable for various high-performance applications, including:
- High speed integrators
- Fast D/A converters
- Sample and hold circuits
- Circuits requiring low input offset voltage and drift, low input bias current, high input impedance, high slew rate, and wide bandwidth.
Q & A
- What is the input offset voltage of the LF412CN?
The input offset voltage of the LF412CN is 1 mV (Max).
- What is the input bias current of the LF412CN?
The input bias current of the LF412CN is 50 pA.
- What is the gain bandwidth product of the LF412CN?
The gain bandwidth product of the LF412CN is 3 MHz (Min).
- What is the slew rate of the LF412CN?
The slew rate of the LF412CN is 10 V/µs (Min).
- What is the supply voltage range for the LF412CN?
The supply voltage range for the LF412CN is 10 V to 36 V.
- What is the operating temperature range for the LF412CN?
The operating temperature range for the LF412CN is 0°C to 70°C.
- What package type is the LF412CN available in?
The LF412CN is available in a DIP (8 Pins) package.
- Is the LF412CN RoHS compliant?
The RoHS compliance status of the LF412CN is not explicitly stated, but it is often available in RoHS-compliant versions.
- What are some typical applications for the LF412CN?
The LF412CN is typically used in high speed integrators, fast D/A converters, sample and hold circuits, and other circuits requiring low input offset voltage and drift, low input bias current, high input impedance, high slew rate, and wide bandwidth.
- How should the power supplies be decoupled for the LF412CN?
For proper operation, the power supplies should be properly decoupled using 0.1µF capacitors placed as close as possible to the op amp power pins.
