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
Precision JFET, High Speed,
Dual Operational Amplifier
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
–IN B
+IN B
Figure 1. 8-Lead CERDIP (Q-8) and
8-Lead PDIP (N-8)
+IN A
V–
+IN B
–IN B
1
2
3
4
8
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
–IN A
OUT A
V+
OUT B
00296-002
A
7
6
5
OP249
B
Figure 2. 8-Lead SOIC (R-8)
GENERAL DESCRIPTION
The
is a high speed, precision dual JFET op amp, similar
to the popular single op amp. The
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
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
is an ideal choice for
high speed bipolar DAC and ADC applications. The excellent
dc performance of the
allows the full accuracy of high
resolution CMOS DACs to be realized.
Symmetrical slew rate, even when driving large load, such as,
600 Ω or 200 pF of capacitance and ultralow distortion, make
the
ideal for professional audio applications, active filters,
high speed integrators, servo systems, and buffer amplifiers.
0.01
870ns
100
90
T
A
= 25°C
V
S
= ±15V
V
O
= 10V p-p
R
L
= 10kΩ
A
V
= 1
100
90
00296-003
00296-004
10mV
500ns
5V
1µs
0.001
20
100
1k
10k 20k
Figure 3. Fast Settling (0.01%)
Figure 4. Low Distortion, A
V
= 1, R
L
= 10 kΩ
Figure 5. Excellent Output Drive, R
L
= 600 Ω
Rev. I
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.
Tel: 781.329.4700 ©1989–2015 Analog Devices, Inc. All rights reserved.
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 that may result from its use. Specifications subject to change without notice. No
license is granted by implication or otherwise under any patent or patent rights of Analog Devices.
Trademarks and registered trademarks are the property of their respective owners.
00296-005
10
0%
10
0%
AD [ ANALOG DEVICES ]
