OP249 Datasheet, PDF (1/17 Pages) Analog Devices – Dual, Precision JFET High Speed Operational Amplifier

a
Dual, Precision
JFET High Speed Operational Amplifier
OP249
FEATURES
Fast Slew Rate:␣ 22 V/␮s typ
Settling Time (0.01%):␣ 1.2 ␮s max
Offset Voltage:␣ 300 ␮V max
High Open-Loop Gain:␣ 1000 V/mV min
Low Total Harmonic Distortion:␣ 0.002% typ
Improved Replacement for AD712, LT1057, OP215,
TL072 and MC34082
Available in Die Form
APPLICATIONS
Output Amplifier for Fast D/As
Signal Processing
Instrumentation Amplifiers
Fast Sample/Holds
Active Filters
Low Distortion Audio Amplifiers
Input Buffer for A/D Converters
Servo Controllers
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’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
PIN CONNECTIONS
8-Lead Cerdip (Z Suffix),
8-Lead Plastic Mini-DIP
(P Suffix)
OUT A 1
–IN A 2
+IN A 3
V– 4
8 V+
A B ₇ OUT B
–+ +–
6 –IN B
5 +IN B
TO-99 (J Suffix)
V+
8
OUTA 1
–IN A 2
7 OUT B
A _+B–
6 –IN B
+IN A 3
5 +IN B
4
V–
20-Terminal LCC (RC Suffix)
NC 4
–IN A 5
NC 6
+IN A 7
NC 8
3 2 1 20 19
18 NC
17 OUT B
16 NC
15 –IN B
14 NC
9 10 11 12 13
NC = NO CONNECT
8-Lead SO
(S Suffix)
+IN A 1
V– 2 – A
+IN B 3
+
+
–IN B 4 ^{– B}
8 –IN A
7 OUT A
6 V+
5 OUT B
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 Ω 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
870ns
V_O = 10V p-p
100
90
R_L = 10k⍀
A_V = +1
100
90
10
0%
10mV
500ns
10
0%
5V
1µs
Figure 1. Fast Settling (0.01%)
0.001
20
100
1k
10k 20k
Figure 2. Low Distortion A_V = +1,
R_L = 10 kΩ
Figure 3. Excellent Output Drive,
R_L = 600 Ω
REV. C
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