Datasheet OP249 (Analog Devices)

Precision JFET, High Speed, Dual Operational Amplifier Data Sheet OP249 FEATURES PIN CONFIGURATIONS Slew rate: 22 V/µs typical OUT A 1 8 V+ OP249 Settling time (0.01%): 1.2 µs maximum –IN A 2 A 7 OUT B Offset voltage: 200 µV typical +IN A 3 B 6 –IN B Open-loop gain: 1000 V/mV minimum
001
V– 4 5 +IN B Total harmonic distortion: 0.002% typical
00296- Figure 1. 8-Lead CERDIP (Q-8) and 8-Lead PDIP (N-8)
APPLICATIONS Output amplifier for fast DACs +IN A 1 8 –IN A Signal processing V– 2 A 7 OUT A Instrumentation amplifiers +IN B 3 6 V+ OP249 Fast sample-and-holds –IN B 4 B 5 OUT B
002
Active filters
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Low distortion audio amplifiers
Figure 2. 8-Lead SOIC (R-8)
Input buffer for ADCs Servo controllers GENERAL DESCRIPTION
The OP249 is a high speed, precision dual JFET op amp, similar Symmetrical slew rate, even when driving large load, such as, to the popular single op amp. The OP249 outperforms available 600 Ω or 200 pF of capacitance and ultralow distortion, make dual amplifiers by providing superior speed with excellent dc the OP249 ideal for professional audio applications, active filters, performance. Ultrahigh open-loop gain (1 kV/mV minimum), high speed integrators, servo systems, and buffer amplifiers. 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 870ns TA = 25°C VS = ±15V 100 VO = 10V p-p 100 90 RL = 10kΩ 90 AV = 1 10 10 0% 0%
003 004 005
10mV 500ns 5V 1µs
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0.001
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20 100 1k 10k 20k
Figure 3. Fast Settling (0.01%) Figure 4. Low Distortion, AV = 1, RL = 10 kΩ Figure 5. Excellent Output Drive, RL = 600 Ω
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Document Outline Features Applications Pin Configurations General Description Table of Contents Revision History Specifications Electrical Characteristics Absolute Maximum Ratings ESD Caution Typical Performance Characteristics Applications Information Open-Loop Gain Linearity Offset Voltage Adjustment Settling Time DAC Output Amplifier Discussion on Driving ADCs Outline Dimensions Ordering Guide