OP249

Data Sheet FEATURES Slew rate: 22 V/µs typical Settling time (0.01%): 1.2 µs maximum Offset voltage: 200 µV typical Open-loop gain: 1000 V/mV minimum Total harmonic distortion: 0.002% typical APPLICATIONS Output amplifier for fast DACs Signal processing Instrumentation amplifiers Fast sample-and-holds Active filters Low distortion audio amplifiers Input buffer for ADCs Servo controllers GENERAL DESCRIPTION The OP249 is a high speed, precision dual JFET op amp, similar to the popular single op amp. The OP249 outperforms available dual amplifiers by providing superior speed with excellent dc performance. Ultrahigh open-loop gain (1 kV/mV minimum), low offset voltage, and superb gain linearity makes the OP249 the industry’s first true precision, dual high speed amplifier. With a slew rate of 22 V/µs typical and a fast settling time of less than 1.2 µs maximum to 0.01%, the OP249 is an ideal choice for high speed bipolar DAC and ADC applications. The excellent dc performance of the OP249 allows the full accuracy of high resolution CMOS DACs to be realized. Precision JFET, High Speed, Dual Operational Amplifier OP249 PIN CONFIGURATIONS OUT A 1 –IN A 2 +IN A 3 V– 4 OP249 A B 8 V+ 7 OUT B 6 –IN B 5 +IN B Figure 1. 8-Lead CERDIP (Q-8) and 8-Lead PDIP (N-8) 00296-001 +IN A 1 V– 2 +IN B 3 –IN B 4 8 –IN A A 7 OUT A OP249 6 V+ B 5 OUT B Figure 2. 8-Lead SOIC (R-8) 00296-002 Symmetrical slew rate, even when driving large load, such as, 600 Ω or 200 pF of capacitance and ultral...