器件名称: OP249
功能描述: Dual, Precision JFET High Speed Operational Amplifier
文件大小: 567.2KB 共20页
简 介:Dual, Precision JFET High Speed Operational Amplifier OP249
FEATURES
Fast slew rate: 22 V/μs typical Settling time (0.01%): 1.2 μs maximum Offset voltage: 300 μV maximum High open-loop gain: 1000 V/mV minimum Low total harmonic distortion: 0.002% typical Improved replacement for AD712, LT1057, OP215, TL072, and MC34082
PIN CONFIGURATIONS
OUT A –IN A +IN A V–
1 2 3 4
OP249
A B
8 7 6 5
V+ OUT B
00296-001
00296-002
–IN B +IN B
Figure 1. 8-Lead CERDIP (Q-8) and 8-Lead PDIP (N-8)
+IN A
1 2 3 4 8
–IN A OUT A V+ OUT B
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
V– +IN B –IN B
A
7 6 5
OP249
B
Figure 2. 8-Lead SOIC (R-8)
GENERAL DESCRIPTION
The OP249 is a high speed, precision dual JFET op amp, similar to the popular single op amp, the OP42. 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.
0.01
Symmetrical slew ……
