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Details, datasheet, quote on part number:OP-491
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Datasheet text preview:
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FEATURES Single-Supply Operation: 2.7 V to 12 V Wide Input Voltage Range Rail-to-Rail Output Swing Low Supply Current: 300 µA/Amp Wide Bandwidth: 3 MHz Slew Rate: 0.5 V/µs Low Offset Voltage: 700 µV 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
Micropower Single-Supply Rail-to-Rail Input/Output Op Amps OP191/OP291/OP491
OP191/OP291/OP491 PIN CONFIGURATIONS 8-Lead Narrow-Body SO (S Suffix)
1 2 3 4 8
8-Lead Epoxy DIP (P Suffix)
NC INA +INA V
1 2 3 4
OP191
7 6 5
OP191
8 7 6 5
NC V+ OUTA NC
NC = NO CONNECT
8-Lead Narrow-Body SO (S Suffix)
1 2 3 4 8
8-Lead Epoxy DIP (P Suffix)
OUTA INA +INA V
1 2 3 4
OP291
7 6 5
OP291
8 7 6 5
+V OUTB INB +INB
GENERAL DESCRIPTION
The OP191, OP291 and OP491 are single, dual and quad micropower, single-supply, 3 MHz bandwidth amplifiers featuring rail-to-rail inputs and outputs. All are guaranteed to operate from a 3 volt single supply as well as ± 5 volt 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 volts beyond either supply without any phase inversion 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-pin plastic DIPs and SO surface mount packages. The OP491 quad is available in 14-pin DIPs and narrow 14-pin SO packages. Consult factory for OP491 TSSOP availability.
14-Lead Epoxy DIP (P Suffix)
OUTA 1 INA 2 14 OUTD 13 IND 12 +IND
14-Lead SO (S Suffix)
OUTA 1 INA 2 4 6 +INA 3 +V INB 14 OUTD 13 IND 12 +IND
+INA 3 +V 4
OP491
11 V 10 +INC 9 INC 8 OUTC
OP491
11 V 10 +INC 9 8 INC OUTC
+INB 5 OUTB 7
+INB 5 INB 6
OUTB 7
14-Lead TSSOP (RU Suffix)
1 2 3 4 5 6 7 14 13 12
OP491
11 10 9 8
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Information furnished by Analog Devices is believed to be accurate and reliable. However, no responsibility is assumed by Analog Devices for its use, nor for any infringements of patents or other rights of third parties which may result from its use. No license is granted by implication or otherwise under any patent or patent rights of Analog Devices.
One Technology Way, P.O. Box 9106, Norwood. MA 02062-9106, U.S.A. Tel: 617/329-4700 Fax: 617/326-8703
OP191/OP291/OP491SPECIFICATIONS
ELECTRICAL SPECIFICATIONS (@ V = +3.0 V, V
S CM
= 0.1 V, VO = 1.4 V, TA = +25°C unless otherwise noted)
Min Typ 80 80 30 0.1 0 70 65 25 Max 500 1 700 1.25 50 70 8 16 3 Units µV mV µV mV nA nA nA nA V dB dB V/mV V/mV µV/°C pA/°C pA/°C V V V V mV mV mV mV mA mA dB dB µA µA V/µs V/µs kHz µs MHz Degrees dB µV p-p nV/H z pA/Hz
Parameter INPUT CHARACTERISTICS Offset Voltage OP191G OP291/OP491G Input Bias Current Input Offset Current Input Voltage Range Common-Mode Rejection Ratio Large Signal Voltage Gain Offset Voltage Drift Bias Current Drift Offset Current Drift OUTPUT CHARACTERISTICS Output Voltage High
Symbol VOS V OS IB IO S CMRR AVO VOS/T IB/T IOS/T V OH
Conditions
40 TA +125°C 40 TA +125°C 40 TA +125°C 40 TA +125°C VCM = 0 V to 2.9 V 40 TA +125°C RL = 10 k , VO = 0.3 V to 2.7 V 40 TA +125°C
90 87 70 50 1.1 100 20 2.99 2.98 2.9 2.8 4.5 40
Output Voltage Low
V OL
Short Circuit Limit Open Loop Impedance POWER SUPPLY Power Supply Rejection Ratio Supply Current/Amplifier DYNAMIC PERFORMANCE Slew Rate Slew Rate Full-Power Bandwidth Settling Time Gain Bandwidth Product Phase Margin Channel Separation NOISE PERFORMANCE Voltage Noise Voltage Noise Density Current Noise Density
Specifications subject to change without notice.
IS C ZO U T PSRR ISY
RL = 100 k to GND 40°C to +125°C RL = 2 k to GND 40°C to +125°C RL = 100 k to V+ 40°C to +125°C RL = 2 k to V+ 40°C to +125°C Sink/Source 40°C to +125°C f = 1 MHz, AV = 1 VS = 2.7 V to 12 V 40°C TA +125°C VO = 0 V 40°C TA +125°C RL = 10 k RL = 10 k 1% Distortion To 0.01%
2.95 2.90 2.8 2.70
± 8.75 ± 6.0
± 13.5 ± 10.5 200 110 110 200 330 0.4 0.4 1.2 22 3 45 145 2 35 0.8
10 35 75 130
80 75
350 480
+SR SR B WP tS GBP O CS en p-p en in
f = 1 kHz, RL = 10 k 0.1 Hz to 10 Hz f = 1 kHz
2
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OP191/OP291/OP491 ELECTRICAL SPECIFICATIONS (@ V = +5.0 V, V
S CM
= 0.1 V, VO = 1.4 V, TA = +25°C unless otherwise noted)
Min Typ 80 80 30 0.1 0 70 65 25 Max 500 1.0 700 1.25 50 60 8 16 5 Units µV mV µV mV nA nA nA nA V dB dB V/mV V/mV µV/°C pA/°C pA/°C V V V V mV mV mV mV mA mA dB dB µA µA V/µs V/µs kHz µs MHz Degrees dB µV p-p nV/H z pA/Hz
Parameter INPUT CHARACTERISTICS Offset Voltage OP191 OP291/OP491 Input Bias Current Input Offset Current Input Voltage Range Common-Mode Rejection Ratio Large Signal Voltage Gain Offset Voltage Drift Bias Current Drift Offset Current Drift OUTPUT CHARACTERISTICS Output Voltage High
Symbol VO S V OS IB IO S CMRR AVO VOS/T IB/T IOS/T V OH
Conditions
40 TA +125°C 40 TA +125°C 40 TA +125°C 40 TA +125°C VCM = 0 V to 4.9 V 40 TA +125°C RL = 10 k , VO = 0.3 V to 4.7 V 40 TA +125°C 40 TA +125°C
93 90 70 50 1.1 100 20 4.99 4.98 4.85 4.75 4.5 40
Output Voltage Low
V OL
Short Circuit Limit Open Loop Impedance POWER SUPPLY Power Supply Rejection Ratio Supply Current/Amplifier DYNAMIC PERFORMANCE Slew Rate Slew Rate Full-Power Bandwidth Settling Time Gain Bandwidth Product Phase Margin Channel Separation NOISE PERFORMANCE Voltage Noise Voltage Noise Density Current Noise Density
IS C ZO U T PSRR IS Y
RL = 100 k to GND 40°C to +125°C RL = 2 k to GND 40°C to +125°C RL = 100 k to V+ 40°C to +125°C RL = 2 k to V+ 40°C to +125°C Sink/Source 40°C to +125°C f = 1 MHz, AV = 1 VS = 2.7 V to 12 V 40 TA +125°C VO = 0 V 40 TA +125°C RL = 10 k RL = 10 k 1% Distortion To 0.01%
4.95 4.90 4.8 4.65
± 8.75 ± 6.0
± 13.5 ± 10.5 200 110 110 220 350 0.4 0.4 1.2 22 3 45 145 2 35 0.8
10 35 75 155
80 75
400 500
+SR SR B WP tS GBP O CS en p-p en in
f = 1 kHz, RL = 10 k 0.1 Hz to 10 Hz f = 1 kHz
NOTES +5 V specifications are guaranteed by +3 V and ± 5 V testing. Specifications subject to change without notice.
REV. 0
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