V鈥?/div>
5 +IN B
GENERAL DESCRIPTION
The OP249 is a high speed, precision dual JFET op amp, simi-
lar to the popular single op amp, the OP42. The OP249 outper-
forms 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鈥檚 first true precision, dual high speed
amplifier.
With a slew rate of 22 V/碌s typical, and a fast settling time of
less than 1.2
碌s
maximum to 0.01%, the OP249 is an ideal
choice for high speed bipolar D/A and A/D converter applica-
tions. The excellent dc performance of the OP249 allows the
full accuracy of high resolution CMOS D/As to be realized.
Symmetrical slew rate, even when driving large load, such as
600
鈩?/div>
or 200 pF of capacitance, and ultralow distortion, make
the OP249 ideal for professional audio applications, active fil-
ters, high speed integrators, servo systems and buffer amplifiers.
The OP249 provides significant performance upgrades to the
TL072, AD712, OP215, MC34082 and the LT1057.
0.010
T
A
= +25 C
V
S
= 15V
V
O
= 10V p-p
R
L
= 10k
A
V
= +1
870ns
100
90
100
90
10
0%
10
0%
10mV
500ns
5V
1碌s
0.001
20
100
1k
10k 20k
Figure 1. Fast Settling (0.01%)
Figure 2. Low Distortion A
V
= +1,
R
L
= 10 k
鈩?/div>
Figure 3. Excellent Output Drive,
R
L
= 600
鈩?/div>
REV. C
Information furnished by Analog Devices is believed to be accurate and
reliable. However, no responsibility is assumed by Analog Devices for its
use, nor for any infringements of patents or other rights of third parties
which may result from its use. No license is granted by implication or
otherwise under any patent or patent rights of Analog Devices.
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.
Tel: 781/329-4700
World Wide Web Site: http://www.analog.com
Fax: 781/326-8703
漏 Analog Devices, Inc., 1998
NC
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