特点
Supply Current per Amplifier: 50μA Max
Offset Voltage: 70μV Max
Offset Current: 250pA Max
Voltage Noise: 0.6μV
P-P
, 0.1Hz to 10Hz
Current Noise: 3pA
P-P
, 0.1Hz to 10Hz
Offset Voltage Drift: 0.4μV/°C
Gain Bandwidth Product: 200kHz
Slew Rate: 0.07V/μs
Single Supply Operation
Input Voltage Range Includes Ground
Output Swings to Ground while Sinking Current
No Pull-Down Resistors Needed
Output Sources and Sinks 5mA Load Current
SO Package with Standard Pinout
典型应用
典型应用
描述
The LT?2078 is a micropower dual op amp in 8-pin small outline, standard surface mount package, and LT2079 is a micropower quad op amp offered in the standard 14-pin surface mount package. Both devices are optimized for single supply operation at 5V. ±15V specifications are also provided.
Micropower performance of competing devices is achieved at the expense of seriously degrading precision, noise, speed and output drive specifications. The design effort of the LT2078/LT2079 was concentrated on reducing supply current without sacrificing other parameters. The offset voltage achieved is the lowest on any dual or quad nonchopper stabilized op amp––micropower or otherwise. Offset current, voltage and current noise, slew rate and gain bandwidth product are all two to ten times better than on previous micropower op amps.
Both the LT2078/LT2079 can be operated from a single supply (as low as one lithium cell or two NiCd batteries). The input range goes below ground. The all NPN output stage swings to within a few millivolts of ground while sinking current––no power consuming pull-down resistors are needed. For applications requiring DIP packages refer to the LT1078/LT1079.