AD841JNZ Analog Devices Inc, AD841JNZ Datasheet - Page 8

IC OPAMP GP 40MHZ 50MA 14DIP

AD841JNZ

Manufacturer Part Number
AD841JNZ
Description
IC OPAMP GP 40MHZ 50MA 14DIP
Manufacturer
Analog Devices Inc
Datasheet

Specifications of AD841JNZ

Slew Rate
300 V/µs
Amplifier Type
General Purpose
Number Of Circuits
1
Gain Bandwidth Product
40MHz
Current - Input Bias
3.5µA
Voltage - Input Offset
800µV
Current - Supply
11mA
Current - Output / Channel
50mA
Voltage - Supply, Single/dual (±)
±5 V ~ 18 V
Operating Temperature
0°C ~ 75°C
Mounting Type
Through Hole
Package / Case
14-DIP (0.300", 7.62mm)
Op Amp Type
Unity Gain Stable
No. Of Amplifiers
1
Bandwidth
40MHz
Supply Voltage Range
± 5V To ± 18V
Amplifier Case Style
DIP
No. Of Pins
14
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Output Type
-
-3db Bandwidth
-
Lead Free Status / RoHS Status
Lead free / RoHS Compliant, Lead free / RoHS Compliant

Available stocks

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Manufacturer
Quantity
Price
Part Number:
AD841JNZ
Manufacturer:
ADI
Quantity:
1 038
AD841
USING A HEAT SINK
The AD841 draws less quiescent power than most precision
high speed amplifiers and is specified for operation without a
heat sink. However, when driving low impedance loads, the cur-
rent to the load can be 4 to 5 times the quiescent current. This
will create a noticeable temperature rise. Improved performance
can be achieved by using a small heat sink such as the Aavid
Engineering #602B.
TERMINATED LINE DRIVER
The AD841 functions very well as a high speed line driver of ei-
ther terminated or unterminated cables. Figure 26 shows the
AD841 driving a doubly terminated cable in a follower configu-
ration. The AD841 maintains a typical slew rate of 300 V/ s,
impedance of the cable) minimizes reflections from the far end
of the cable. A back-termination resistor (R
characteristic impedance of the cable) may be placed between
the AD841 output and the cable in order to damp any stray sig-
nals caused by a mismatch between R
teristic impedance. This will result in a “cleaner” signal, but
since 1/2 the output voltage will be dropped across R
amp must supply double the output signal required if there is no
back termination. Therefore the full power bandwidth is cut in
half.
If termination is not used, cables appear as capacitive loads. If
this capacitive load is large, it should be decoupled from the
AD841 by a resistor in series with the output (see above:
Driving a Capacitive Load).
OVERDRIVE RECOVERY
Figure 27 shows the overdrive recovery capability of the AD841.
Typical recovery time is 200 ns from negative overdrive and
700 ns from positive overdrive.
which means it can drive a 10 V, 4.7 MHz signal or a 3 V,
15.9 MHz signal.
The termination resistor, R
Figure 25. Circuit for Driving a Large Capacitive Load
Figure 26. Line Driver Configuration
T
, (when equal to the characteristic
T
and the cable’s charac-
BT
, also equal to the
BT
, the op
–8–
14-Pin Plastic (N) Package
12-Lead Metal Can Package
Figure 28. Overdrive Recovery Test Circuit
(TO-8 Style)
Figure 27. Overdrive Recovery
Dimensions shown in inches and (mm).
OUTLINE DIMENSIONS
14-Pin Cerdip (Q) Package
Ceramic Chip Carrier
20-Terminal Leadless
E-20A
REV. B

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