AD712JRZ Analog Devices Inc, AD712JRZ Datasheet - Page 16
AD712JRZ
Manufacturer Part Number
AD712JRZ
Description
IC OPAMP BIFET DUAL PREC 8SOIC
Manufacturer
Analog Devices Inc
Datasheet
1.AD712JNZ.pdf
(20 pages)
Specifications of AD712JRZ
Slew Rate
20 V/µs
Amplifier Type
J-FET
Number Of Circuits
2
-3db Bandwidth
4MHz
Current - Input Bias
25pA
Voltage - Input Offset
300µV
Current - Supply
5mA
Current - Output / Channel
25mA
Voltage - Supply, Single/dual (±)
9 V ~ 36 V, ±4.5 V ~ 20 V
Operating Temperature
0°C ~ 70°C
Mounting Type
Surface Mount
Package / Case
8-SOIC (3.9mm Width)
Op Amp Type
High Speed
No. Of Amplifiers
2
Bandwidth
4MHz
Supply Voltage Range
± 4.5V To ± 18V
Amplifier Case Style
SOIC
No. Of Pins
8
Operating Temperature Range
0°C To +70°C
Rail/rail I/o Type
No
Number Of Elements
2
Unity Gain Bandwidth Product
3MHz
Common Mode Rejection Ratio
70dB
Input Offset Voltage
3@±15VmV
Input Bias Current
100pA
Single Supply Voltage (typ)
Not RequiredV
Dual Supply Voltage (typ)
±15V
Voltage Gain In Db
112.04dB
Power Supply Requirement
Dual
Shut Down Feature
No
Single Supply Voltage (min)
Not RequiredV
Single Supply Voltage (max)
Not RequiredV
Dual Supply Voltage (min)
±4.5V
Dual Supply Voltage (max)
±18V
Technology
BiFET
Operating Temp Range
0C to 70C
Operating Temperature Classification
Commercial
Mounting
Surface Mount
Pin Count
8
Package Type
SOIC N
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Output Type
-
Gain Bandwidth Product
-
Lead Free Status / Rohs Status
Compliant
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Quantity
Price
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AD712
DRIVING A LARGE CAPACITIVE LOAD
The circuit in Figure 46 uses a 100 Ω isolation resistor that enables
the amplifier to drive capacitive loads exceeding 1500 pF; the
resistor effectively isolates the high frequency feedback from
the load and stabilizes the circuit. Low frequency feedback is
returned to the amplifier summing junction via the low-pass filter
formed by the 100 Ω series resistor and the Load Capacitance C
Figure 47 shows a typical transient response for this connection.
TYPICAL CAPACITANCE
LIMIT FOR VARIOUS
LOAD RESISTORS
2kΩ
10kΩ
20Ω
R
1
INPUT
C
1500pF
1500pF
1000pF
1
4.99kΩ
Figure 46. Circuit for Driving a Large Capacitive Load
UP TO
30pF
+
–
AD712
+V
1/2
–V
4.99kΩ
IN
IN
0.1µF
+
–
0.1µF
–
+
100Ω
C1
R1
OUTPUT
Rev. H | Page 16 of 20
L
.
100
90
0%
10
Figure 47. Transient Response R
5V
L
= 2 kΩ, C
1µs
L
= 500 pF