Description
NSC National Semiconductor – TI LF442CN IC OP AMP DUAL LO PWR JFET 8-DIP
The LF442CN/NOPB is a dual low power JFET-input Operational Amplifier provide many of the same AC characteristics as the industry standard LM1458 while greatly improving the DC characteristics of the LM1458. The amplifier have the same bandwidth, slew rate and gain (10kΩ load) as the LM1458 and only draw one tenth the supply current of the LM1458. In addition the well matched high voltage JFET input devices of the LF442 reduce the input bias and offset currents by a factor of 10000 over the LM1458. A combination of careful layout design and internal trimming ensures very low input offset voltage and voltage drift. The LF442 also has a very low equivalent input noise voltage for a low power amplifier. The LF442 is pin compatible with the LM1458 allowing an immediate 10 times reduction in power drain in many applications. The LF442 should be used where low power dissipation and good electrical characteristics are the major considerations.
Part Specification:
- Type : General Purpose
- Rail/Rail I/O Type : No
- Number of Elements : Dual
- Unity Gain Bandwidth Product (Typ) : 1MHz
- Slew Rate : 1V/us
- Common Mode Rejection Ratio : 70dB
- Input Offset Voltage : 5@±15VmV
- Input Bias Current : 0.1nA
- Single Supply Voltage (Typ) : Not RequiredV
- Voltage Gain in dB : 106.02dB
- Power Supply Rejection Ratio : 70dB
- Power Supply Requirement : Dual
- Shut Down Feature : No
- Single Supply Voltage (Min) : Not RequiredV
- Single Supply Voltage (Max) : Not RequiredV
- Dual Supply Voltage (Max) : ±18V
- Technology : BiFET
- Operating Temp Range : 0C to 70C
- Operating Temperature Classification : Commercial
- Mounting : Through Hole
- Pin Count : 8
- Package Type : MDIP
- Packaging : Rail
The LF442 dual low power operational amplifiers provide many of the same AC characteristics as the industry stan- dard LM1458 while greatly improving the DC characteristics of the LM1458. The amplifiers have the same bandwidth, slew rate, and gain (10 k ? load) as the LM1458 and only draw one tenth the supply current of the LM1458. In addition the well matched high voltage JFET input devices of the LF442 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 guarantees very low input offset voltage and voltage drift. The LF442 also has a very low equivalent input noise voltage for a low power amplifier. The LF442 is pin compatible with the LM1458 allowing an immediate 10 times reduction in power drain in many appli- cations. The LF442 should be used where low power dissi- pation and good electrical characteristics are the major con- siderations.
Manufacturer:National Semiconductor
Datasheet:Others/LF442.pdf
