LF442 Dual Low Power JFET Input Operational Amplifier
The LF442-MIL dual low power operational amplifiers provide many of the same AC characteristics as the industry standard LM1458 while greatly improving the DC characteristics of the LM1458. The amplifiers have the same bandwidth, slew rate, and gain (10 kΩ load) as the LM1458 and only draw one-tenth of the supply current of the LM1458. In addition, the well-matched high voltage JFET input devices of the LF442-MIL reduce the input bias and offset currents by a factor of 10,000 over the LM1458. A combination of careful layout design and internal trimming ensures very low input offset voltage and voltage drift. The LF442-MIL also has a very low equivalent input noise voltage for a low power amplifier. The LF442-MIL is pin-compatible with the LM1458 allowing an immediate 10 times reduction in power drain in many applications. The LF442-MIL should be used where low power dissipation and good electrical characteristics are the major considerations.
Application:
- High-Speed Integrators
- Fast D/A Converters
- Sample and Hold Circuits
Features/Specs:
- Supply Voltage: ±18V
- Differential Input Voltage: ±30V
- Input Voltage Range: ±15V
- Low Input Bias Current: 50 pA (Max)
- Low Input Offset Voltage: 1 mV (Max)
- Low Input Offset Voltage Drift: 7 μV/°C (Typ)
- High Gain Bandwidth: 1 MHz
- High Slew Rate: 1 V/μs
- Low Noise Voltage for Low Power: 35 nV/√Hz
- Low Input Noise Current: 0.01 pA/√Hz
- High Input Impedance: 1012Ω
- High Gain VO = ±10V, RL = 10k: 50k (Min)
Datasheet: LF442 Dual Low Power JFET Input Operational Amplifier
Note: Product Images are shown for illustrative purposes only and may differ from actual product.
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