OP491GRU ,16V; micropower single-supply rail-to-rail input/output Op amplifier. For industrial process control, battery-powered instrumentation, power supply control and protection, telecomApplications for these amplifiers include portable telecom–INA 2 13 –IND312equipment, power supply ..
OP491GRUZ-REEL , Micropower Single-Supply Rail-to-Rail Input/Output Op Amps
OP491GS ,Micropower Single-Supply Rail-to-Rail Input/Output Op AmpsCHARACTERISTICSOffset Voltage OP191G V 80 500 μVOS–40 ≤ T ≤ +125°C1mVAOP291/OP491G V 80 700 μVOS–40 ..
OP491GSZ-REEL7 , Micropower Single-Supply Rail-to-Rail Input/Output Op Amps
OP491HRU ,Micropower Single-Supply Rail-to-Rail Input/Output Op AmpsCHARACTERISTICSOffset Voltage OP191 V 80 500 μVOS–40 ≤ T ≤ +125°C 1.0 mVAOP291/OP491 V 80 700 μVOS– ..
OP492 ,Quad Single Supply Operational AmplifierCHARACTERISTICSOutput Voltage SwingHigh V R = 100 k to GNDOUT L–40∞C £ T £ +125∞C 4.0 4.3 VAR = 2 ..
P4SMA11CA , Silicon Avalanche Diodes - 400W Surface Mount Transient Voltage Supressors
P4SMA11CA , Silicon Avalanche Diodes - 400W Surface Mount Transient Voltage Supressors
P4SMA120A ,ARK Electronics - Surface Mount Transient Voltage Suppressors Peak Pulse Power 400W Breakdown Voltage 6.8 to 550V
P4SMA120CA , Silicon Avalanche Diodes - 400W Surface Mount Transient Voltage Supressors
P4SMA120CA , Silicon Avalanche Diodes - 400W Surface Mount Transient Voltage Supressors
P4SMA12A ,ARK Electronics - Surface Mount Transient Voltage Suppressors Peak Pulse Power 400W Breakdown Voltage 6.8 to 550V
OP491GRU
16V; micropower single-supply rail-to-rail input/output Op amplifier. For industrial process control, battery-powered instrumentation, power supply control and protection, telecom
REV.A
GENERAL DESCRIPTIONThe OP191, OP291, and OP491 are single, dual and quad
micropower, single-supply, 3 MHz bandwidth amplifiers fea-
turing rail-to-rail inputs and outputs. All are guaranteed to
operatefroma 3Vsinglesupply as well as ±5 V dual supplies.
Fabricated on Analog Devices’ CBCMOS process, the OP191
family has a unique input stage that allows the input voltage to
safely extend 10 V beyond either supply without any phase inver-
sion or latch-up. The output voltage swings to within millivolts
of the supplies and continues to sink or source current all the
way to the supplies.
Applications for these amplifiers include portable telecom
equipment, power supply control and protection, and interface
for transducers with wide output ranges. Sensors requiring a
rail-to-rail input amplifier include Hall effect, piezo electric, and
resistive transducers.
The ability to swing rail-to-rail at both the input and output
enables designers to build multistage filters in single-supply
systems and maintain high signal-to-noise ratios.
The OP191/OP291/OP491 are specified over the extended
industrial (–40°C to +125°C) temperature range. The OP191
single and OP291 dual amplifiers are available in 8-lead plastic
SO surface mount packages*. The OP491 quad is available in
14-lead DIPs and narrow 14-lead SO packages. Consult factory
for OP491 TSSOP availability.
*The OP291 dual is also available in 8-lead Plastic Dip.
Micropower Single-Supply
Rail-to-Rail Input/Output Op Amps
PIN CONFIGURATIONS
8-Lead Narrow-Body SO 8-Lead Narrow-Body SO
8-Lead Plastic DIP 14-Lead Plastic DIP
14-Lead SO 14-Lead TSSOP
FEATURES
Single-Supply Operation: 2.7 V to 12 V
Wide Input Voltage Range
Rail-to-Rail Output Swing
Low Supply Current: 300 �A/Amp
Wide Bandwidth: 3 MHz
Slew Rate: 0.5 V/�s
Low Offset Voltage: 700 �V
No Phase Reversal
APPLICATIONS
Industrial Process Control
Battery-Powered Instrumentation
Power Supply Control and Protection
Telecom
Remote Sensors
Low-Voltage Strain Gage Amplifiers
DAC Output Amplifier
OUTD
–IND
+IND
+INC
–INC
OUTC
OUTA
–INA
+INA
+INB
–INB
OUTB
OP191/OP291/OP491–SPECIFICATIONS
ELECTRICAL SPECIFICATIONSPOWER SUPPLY
DYNAMIC PERFORMANCE
Specifications subject to change without notice.
(@ VS = +3.0 V, VCM = 0.1 V, VO = 1.4 V, TA = 25�C unless otherwise noted.)
ELECTRICAL SPECIFICATIONS(@ VS = +5.0 V, VCM = 0.1 V, VO = 1.4 V, TA = 25�C unless otherwise noted.)POWER SUPPLY
DYNAMIC PERFORMANCE
NOTE
+5 V specifications are guaranteed by +3 V and ±5 V testing.
Specifications subject to change without notice.
OP191/OP291/OP491
OP191/OP291/OP491
ELECTRICAL SPECIFICATIONS(@ VO = �5.0 V, –4.9 V ≤ VCM ≤ +4.9 V, TA = 25�C unless otherwise noted.)POWER SUPPLY
Specifications subject to change without notice.
ABSOLUTE MAXIMUM RATINGS1SupplyVoltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .16V
Input Voltage . . . . . . . . . . . . . . . . . . . . . . . . .GND to VS 10 V
Differential Input Voltage . . . . . . . . . . . . . . . . . . . . . . . . . .7 V
Output Short-Circuit Duration to GND . . . . . . . . . .Indefinite
Storage Temperature Range
P, S, RU Packages . . . . . . . . . . . . . . . . . . .–65°C to +150°C
Operating Temperature Range
OP191/OP291/OP491G . . . . . . . . . . . . . . .–40°C to +125°C
Junction Temperature Range
P, S, RU Packages . . . . . . . . . . . . . . . . . . .–65°C to +150°C
Lead Temperature Range (Soldering60sec) . . . . . . . .+300°C
8-Lead Plastic DIP (P)
8-Lead SOIC (S)
14-Lead Plastic DIP (P)
14-Lead SOIC (S)
NOTESAbsolute maximum ratings apply to both DICE and packaged parts, unless
otherwise noted.θJA is specified for the worst case conditions; i.e., θJA is specified for device in socket
for P-DIP packages; θJA is specified for device soldered in circuit board for TSSOP
and SOIC packages.
ORDERING GUIDE*Not for new design; obsolete April 2002.
CAUTIONESD (electrostatic discharge) sensitive device. Electrostatic charges as high as 4000V readily
accumulate on the human body and test equipment and can discharge without detection.
Although the OP191/OP291/OP491 feature proprietary ESD protection circuitry, permanent
damage may occur on devices subjected to high-energy electrostatic discharges. Therefore, proper
ESD precautions are recommended to avoid performance degradation or loss of functionality.
OP191/OP291/OP491–Typical Performance CharacteristicsTPC 3.Input Offset Voltage vs.
Temperature, VS = +3 V
TPC 6.Input Bias Current vs. Com-
mon-Mode Voltage, VS = +3 V
TPC 9.Open-Loop Gain vs.
Temperature, VS = +3 V
TPC 2.OP291 Input Offset Volt-
age Drift Distribution, VS = +3 V
TPC 5.Input Offset Current vs. Tem-
perature, VS = +3 V
TPC 8.Open-Loop Gain and Phase
vs. Frequency, VS = +3 V
TPC 1.OP291 Input Offset Voltage
Distribution, VS = +3 V
TPC 4.Input Bias Current vs.
Temperature, VS = +3 V
TPC 7.Output Voltage Swing vs.
Temperature, VS = +3 V
TPC 10.Closed-Loop Gain vs.
Frequency, VS = +3 V
TPC 13.PSRR vs. Frequency,
VS = +3 V
TPC 16.Supply Current vs.
Temperature, VS = +3 V, +5 V, ±5 V
TPC 11.CMRR vs. Frequency,
VS = +3 V
TPC 14.PSRR vs. Temperature,
VS = +3 V
TPC 17.Maximum Output Swing vs.
Frequency, VS = +3 V
TPC 12.CMRR vs. Temperature,
VS = +3 V
TPC 15.Slew Rate vs. Tempera-
ture, VS = +3 V
TPC 18.Voltage Noise Density,
VS = +3V to ±5V, AVO = 1000
TPC 21.Input Offset Voltage vs.
Temperature, VS = +5 V
TPC 24.Input Bias Current vs.
Common-Mode Voltage, VS = +5 V
TPC 27.Open-Loop Gain vs.
Temperature, VS = +5 V
OP191/OP291/OP491TPC 19.OP291 Input Offset Voltage
Distribution, VS = +5 V
TPC 22.Input Bias Current vs.
Temperature, VS = +5 V
TPC 25.Output Voltage Swing vs.
Temperature, VS = +5 V
TPC 20.OP291 Input Offset
Voltage Drift Distribution, VS = +5 V
TPC 23.Input Offset Current vs.
Temperature, VS = +5 V
TPC 26.Open-Loop Gain and Phase
vs.Frequency,VS = +5 V
TPC 28.Closed-Loop Gain vs.
Frequency, VS = +5 V
TPC 31.PSRR vs. Frequency,
VS = +5 V
TPC 34.Short Circuit Current vs.
Temperature, VS = +3 V, +5 V,±5V
TPC 29.CMRR vs. Frequency,
VS = +5 V
TPC 32.OP291 Slew Rate vs.
Temperature, VS = +5 V
TPC 35.Channel Separation,=±5 V
TPC 30.CMRR vs. Temperature,
VS = +5 V
TPC 33.OP491 Slew Rate vs.
Temperature, VS = +5 V
TPC 36.Maximum Output Swing
vs. Frequency, VS = +5 V
OP191/OP291/OP491TPC 37.Maximum Output Swing vs.
Frequency, VS=±5V
TPC 40.Input Offset Current vs.
Temperature, VS=±5V
TPC 43.Open-Loop GainandPhase
vs.Frequency, VS = ±5 V
TPC 38.Input Offset Voltage vs.
Temperature, VS=±5V
TPC 41.Input Bias Current vs. Com-
mon-Mode Voltage, VS=±5V
TPC 44.Open-Loop Gain vs.
Temperature, VS=±5V
TPC 39.Input Bias Current vs.
Temperature, VS = ±5 V
TPC 42.Output Voltage Swing vs.
Temperature, VS=±5V
TPC 45.Closed-Loop Gain vs.
Frequency, VS=±5V
