AD847JN Analog Devices Inc, AD847JN Datasheet - Page 11

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AD847JN

Manufacturer Part Number
AD847JN
Description
IC OPAMP GP 50MHZ LP 32MA 8DIP
Manufacturer
Analog Devices Inc
Datasheet

Specifications of AD847JN

Slew Rate
300 V/µs
Mounting Type
Through Hole
Rohs Status
RoHS non-compliant
Amplifier Type
General Purpose
Number Of Circuits
1
Gain Bandwidth Product
50MHz
Current - Input Bias
3.3µA
Voltage - Input Offset
500µV
Current - Supply
5.3mA
Current - Output / Channel
32mA
Voltage - Supply, Single/dual (±)
±4.5 V ~ 18 V
Operating Temperature
0°C ~ 70°C
Package / Case
8-DIP (0.300", 7.62mm)
Op Amp Type
General Purpose
No. Of Amplifiers
1
Bandwidth
50MHz
No. Of Pins
8
Operating Temperature Range
0°C To +70°C
Settling Time
65ns
Output Type
-
-3db Bandwidth
-
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant

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REV. F
A High Speed, Three Op-Amp In-Amp
The circuit of Figure 26 lends itself well to CCD imaging and
other video speed applications. It uses two high speed CB pro-
cess op-amps: Amplifier A3, the output amplifier, is an AD847.
+V
–V
IN
IN
BANDWIDTH, SETTLING TIME AND TOTAL HARMONIC DISTORTION VS. GAIN
R
G
3
2
6
5
Figure 26. A High Speed In-Amp Circuit for Data Acquisition
A1
A2
COMM
AD827
GAIN R
1
2
10
100
AD827
1k
1k
+15V
–15V
1/2
1/2
7
1
OPEN
2k
226
20
G
5pF
2k
2k
10 F
10 F
C
(pF)
2–8
2–8
2–8
2–8
ADJ
SMALL
SIGNAL
BANDWIDTH
16.1MHz
14.7MHz
4.5MHz
660kHz
0.1 F
0.1 F
1.87k
DC CMR
ADJUST
200
AC CMR ADJUST
SETTLING TIME
2
3
2–8pF
A3
2k
+V
–V
AD847
–11–
S
S
6
CIRCUIT GAIN =
The input amplifier (A1 and A2) is an AD827, which is a dual
version of the AD847. This circuit has the optional flexibility of
both dc and ac trims for common-mode rejection, plus the abil-
ity to adjust for minimum settling time.
AMPLIFIER
SETTLING
TIME
TO 0.1%
200ns
200ns
370ns
2.5 s
V
1 F
EACH
1 F
OUT
0.1 F
0.1 F
R
2k
2000
L
THD + NOISE
BELOW INPUT
LEVEL
@ 10kHz
82dB
82dB
81dB
71dB
R
G
PIN 4
AD847 & AD827
PIN 7 AD847,
PIN 8 AD827
+ 1
INPUT
FREQUENCY
100Hz
1kHz
10kHz
100kHz
1MHz
CMRR
88.3dB
87.4dB
86.2dB
67.4dB
47.1dB
AD847

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