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OP292N/a19avaiDual Single Supply Operational Amplifier
OP292PMIN/a60avaiDual Single Supply Operational Amplifier
OP492ADN/a6avaiQuad Single Supply Operational Amplifier


OP292 ,Dual Single Supply Operational AmplifierCHARACTERISTICSOffset VoltageOP292 V 1.0 2.0 mVOS–40∞C £ T £ +85∞C 1.2 2.5 mVA–40∞C £ T £ +125∞C 1. ..
OP292 ,Dual Single Supply Operational AmplifierCHARACTERISTICSOutput Voltage Swing V R = 2 k to GND 11 12.2 VO L–40∞C £ T £ +125∞C 10 11 VAR ..
OP292GP ,DUAL/QUAD SINGLE SUPPLY OPERATIONAL AMPLIFIERCHARACTERISTICS Output Voltage Swing Vo RL = 2 kn to GND tll t 12.2 V --40T 5 TA 5 + 125°C t10 tl ..
OP292GP ,DUAL/QUAD SINGLE SUPPLY OPERATIONAL AMPLIFIERCHARACTERISTICS Offset Voltage VOS OP292 1.0 2.0 mV -400C 5 TA S +85°C 1.2 2.5 mV -4()0C 3 TA 5 ..
OP292GP ,DUAL/QUAD SINGLE SUPPLY OPERATIONAL AMPLIFIERCHARACTERISTICS Offset Voltage Vos OP292 0.1 0.8 mV 740°C S TA S +85°C 0.3 1.2 mV 740°C S TA S ..
OP292GS ,DUAL/QUAD SINGLE SUPPLY OPERATIONAL AMPLIFIERCHARACTERISTICS Output Voltage Swing High VOUT RL = 100 kn to GND 740°C 3 TA S +125°C 4.0 4.3 V ..
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OP292-OP492
Dual Single Supply Operational Amplifier
REV.B
FEATURES
Dual/Quad Single-Supply
Operational Amplifiers
Single-Supply Operation: 4.5 V to 33 V
Input Common-Mode Includes Ground
Output Swings to Ground
High Slew Rate: 3 V/�s
High Gain Bandwidth: 4 MHz
Low Input Offset Voltage
High Open-Loop Gain
No Phase Inversion
Low Cost
APPLICATIONS
Disk Drives
Mobile Phones
Servo Controls
Modems and Fax Machines
Pagers
Power Supply Monitors and Controls
Battery-Operated Instrumentation
GENERAL DESCRIPTION

The OP292/OP492 are low cost, general purpose dual and quad
operational amplifiers designed for single-supply applications
and are ideal for 5 olt systems.
Fabricated on Analog Devices’ CBCMOS process, the OP292/
OP492 series has a PNP input stage that allows the input voltage
range to include ground. A BiCMOS output stage enables the
output to swing to ground while sinking current.
The OP292/OP492 series is unity-gain stable and features an
outstanding combination of speed and performance for single-
or dual-supply operation. The OP292/OP492 provide high slew
rate, high bandwidth, with open-loop gain exceeding 40,000
and offset voltage under 800 � (OP292) and 1 mV (OP492).
With these combinations of features and low supply current, the
OP292/OP492 series is an excellent choice for battery-operated
applications.
The OP292/OP492 series performance is specified for single- or
dual-supply voltage operation over the extended industrial tem-
perature range (–40∞C to +125∞C).
Package options for the OP292 and OP492 include plastic DIP,
SO-8 (OP292) and SO-14.
PIN CONNECTIONS
8-Lead Narrow-Body SOIC8-Lead Epoxy DIP
(S-Suffix)(P-Suffix)
14-Lead Narrow-Body SOIC14-Lead Epoxy DIP
(S-Suffix)(P-Suffix)
OP292/OP492–SPECIFICATIONS
ELECTRICAL CHARACTERISTICS(@ VS = 5V, VCM = OV, VO = 2V, TA = 25�C unless otherwise noted.)
OP292/OP492
ELECTRICAL CHARACTERISTICS(@ VS = 5V, VCM = OV, VO = 2V, TA = 25∞C unless otherwise noted.)

NOTESInput voltage range is guaranteed by CMRR tests.
Specifications subject to change without notice.
OP292/OP492
ABSOLUTE MAXIMUM RATINGS1

Supply Voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .33 V
Input Voltage2 . . . . . . . . . . . . . . . . . . . . . . . .–15 V to +14 V
Differential Input Voltage2 . . . . . . . . . . . . . . . . . . . . . . . . . .V
Output Short-Circuit Duration . . . . . . . . . . . .UNLIMITED
Storage Temperature Range
P, S Package . . . . . . . . . . . . . . . . . . . . .–65∞C to +150∞C
Operating Temperature Range
OP292/OP492 P, S . . . . . . . . . . . . . . . .–40∞C to +125∞C
Junction Temperature Range
P, S Package . . . . . . . . . . . . . . . . . . . . .–65∞C to +125∞C
Lead Temperature Range (Soldering, 60 sec) . . . . . . .300∞C
NOTESAbsolute maximum ratings apply to both DICE and packaged parts, unless otherwise
noted.For supply voltages less than 36V, the absolute maximum input voltage is equal
to the supply voltage.�JA is specified for the worst-case conditions, i.e., �JA is specified for device in socket
for P-DIP package; �JA is specified for device soldered in circuit board for SOIC
package.
ORDERING GUIDE

*Not for new design, obsolete April 2002.
Typical Performance Characteristics–OP292/OP492
TPC 4. OP492 Input Offset Voltage Distribution @ 5V
TPC 5. OP492 Input Offset Voltage Distribution @ ±15V
TPC 6. OP492 Temperature Drift (TCVOS) Distribution @ 5V
TPC 1. OP292 Input Offset Voltage Distribution @ 5V
TPC 2. OP292 Input Offset Voltage Distribution @ ±15V
TPC 3. OP292 Temperature Drift (TCVOS) Distribution @ 5V
OP292/OP492
TPC 7. OP292 Temperature Drift (TCVOS) Distribution @ ±15 V
TPC 8. OP292 Open-Loop Gain vs. Temperature @ 5 V
TPC 9. OP292 Open-Loop Gain vs. Temperature @ ±15 V
TPC 10. OP492 Temperature Drift (TCVOS) Distribution @ ±15 V
TPC 11. OP492 Open-Loop Gain vs. Temperature @ 5 V
TPC 12. OP492 Open-Loop Gain vs. Temperature @ ±15 V
TPC 13. OP292 Supply Current per Amplifier
vs. Temperature
TPC 14. OP292 Slew Rate vs. Temperature
TPC 15. OP292/OP492 Open-Loop Gain and Phase vs.
Frequency @ 5 V
TPC 16. OP492 Supply Current per Amplifier
vs. Temperature
TPC 17. OP492 Slew Rate vs. Temperature
TPC 18. OP292/OP492 Open-Loop Gain/Phase vs.
Frequency @ ±15 V
OP292/OP492
TPC 19. OP292/OP492 Closed-Loop Gain/Phase vs.
Frequency @ 5 V
TPC 20. OP292/OP492 CMR vs. Frequency @ 5 V
TPC 21. OP292/OP492 PSR vs. Frequency @ 5 V
TPC 22. OP292/OP492 Closed-Loop Gain/Phase vs.
Frequency @ ±15 V
TPC 23. OP292/OP492 CMR vs. Frequency @ ±15 V
TPC 24. OP292/OP492 PSR vs. Frequency @ ±15 V
TPC 25. OP292/OP492 VOUT Swing vs. Temperature @ 5V
TPC 26. OP292/OP492 Input Bias Current vs.
Temperature @ 5 V
TPC 27. OP292/OP492 Channel Separation
TPC 28. OP292/OP492 VOUT Swing vs. Temperature @ ±15V
TPC 29. OP292/OP492 Input Bias Current vs. Temperature
@ ±15 V
TPC 30. OP292/OP492 IB Current vs. Common-Mode Voltage
OP292/OP492
TPC 31.Voltage Noise Density
APPLICATION INFORMATION
Phase Reversal

The OP492 has built-in protection against phase reversal when
the input voltage goes to either supply rail. In fact, it is safe for
the input to exceed either supply rail by up to 0.6 V with no risk
of phase reversal. However, the input should not go beyond the
positive supply rail by more than 0.9 V, otherwise the output
will reverse phase. If this condition can occur, the problem can
be fixed by adding a 5 k� current limiting resistor in series with
the input pin. With this addition, the input can go to more than
5 V beyond the positive rail without phase reversal.
An input voltage that is as much as 5 V below the negative rail
will not result in phase reversal.
Figure 1.Output Phase Reverse If Input Exceeds the Posi-
tive Supply (V+) by More Than 0.9V
Figure 2.No Negative Rail Phase Reversal, Even with Input
Power Supply Considerations

The OP292/OP492 are designed to operate equally well at single 5V
or �15 V supplies. The lowest supply voltage recommended is 4.5V.
It is a good design practice to bypass the supply pins with a 0.1 mF
ceramic capacitor. It helps improve filtering of high frequency noise.
For dual supply operation, the negative supply (V–) must be applied
at the same time, or before V�. If V� is applied before V–, or in
the case of a loss of V– supply, while either input is connected to
ground or other low impedance source, excessive input current
may result. Potentially damaging levels of input current can de-
stroy the amplifier. If this condition can exist, simply add a l k�
or larger resistor in series with the input to eliminate the problem.
TYPICAL APPLICATIONS
Direct Access Arrangement for Telephone Line Interface

Figure 3 shows a 5 V- only transmit/receive telephone line inter-
face for a modem circuit. It allows full duplex transmission of modem
signals on a transformer-coupled 600 V line in a differential man-
ner. The transmit section gain can be set for the specific modem
device output. Similarly the receive amplifier gain can be appro-
priately selected based on the modem device input requirements.
The circuit operates on a single 5V supply. The standard value
resistors allow the use of a SIP-packaged resistor array; coupled
with a quad op amp in a single package, this offers a compact,
low part-count solution.
Figure 3. A Universal Direct Access Arrangement for
Telephone Line Interface
A Single-Supply Instrumentation Amplifier

A low-cost, single-supply instrumentation amplifier can be built
as shown in Figure 4. The circuit utilizes two op amps to form a
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