OP291GP Analog Devices, OP291GP Datasheet

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OP291GP

Manufacturer Part Number
OP291GP
Description
16V; micropower single-supply rail-to-rail input/output Op amplifier. For industrial process control, battery-powered instrumentation, power supply control and protection, telecom
Manufacturer
Analog Devices
Datasheet

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Manufacturer
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Part Number:
OP291GP
Manufacturer:
PMI
Quantity:
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Part Number:
OP291GP
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ADI/亚德诺
Quantity:
20 000
a
GENERAL DESCRIPTION
The 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
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.
REV. 0
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.
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
Rail-to-Rail Input/Output Op Amps
One Technology Way, P.O. Box 9106, Norwood. MA 02062-9106, U.S.A.
Tel: 617/329-4700
8-Lead Narrow-Body SO
8-Lead Narrow-Body SO
OUTA
OUTB
–INA
+INA
+INB
–INB
14-Lead Epoxy DIP
OP191/OP291/OP491 PIN CONFIGURATIONS
+V
1
2
3
4
5
6
7
Micropower Single-Supply
1
2
3
4
1
2
3
4
(S Suffix)
(S Suffix)
(P Suffix)
OP291
OP191
OP491
OP191/OP291/OP491
7
6
5
8
7
6
5
8
1
2
3
4
5
6
7
14
13
12
11
10
9
8
(RU Suffix)
14-Lead
TSSOP
OUTD
–IND
+IND
–V
+INC
–INC
OUTC
OP491
OUTA
–INA
+INA
–INA
+INA
NC
–V
–V
8-Lead Epoxy DIP
14
13
12
11
10
9
8
OUTA
OUTB
1
2
3
4
8-Lead Epoxy DIP
–INA
+INA
+INB
–INB
1
2
3
4
NC = NO CONNECT
+V
(P Suffix)
14-Lead SO
(P Suffix)
(S Suffix)
1
2
3
4
5
6
7
OP191
Fax: 617/326-8703
OP491
OP291
14
13
12
11
10
9
8
8
7
6
5
8
7
6
5
OUTD
–IND
+IND
–V
+INC
–INC
OUTC
NC
V+
OUTA
NC
+V
OUTB
–INB
+INB

Related parts for OP291GP

OP291GP Summary of contents

Page 1

... Consult factory for OP491 TSSOP availability. REV. 0 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 ...

Page 2

OP191/OP291/OP491–SPECIFICATIONS ELECTRICAL SPECIFICATIONS 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 ...

Page 3

ELECTRICAL SPECIFICATIONS 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 Output ...

Page 4

OP191/OP291/OP491 ELECTRICAL SPECIFICATIONS Parameter INPUT CHARACTERISTICS Offset Voltage OP191 OP291/OP491 Input Bias Current Input Offset Current Input Voltage Range Common-Mode Rejection Large Signal Voltage Gain Offset Voltage Drift Bias Current Drift Offset Current Drift OUTPUT CHARACTERISTICS Output Voltage Swing Short ...

Page 5

... C unless otherwise noted Symbol Conditions CMRR +2 PSRR GND Model OP191GP OP191GS OP191GBC +25 C OP291GP OP291GS OP291GBC +25 C OP491GP OP491GS OP491HRU – +125 C 14-Pin TSSOP Units OP491GBC + C/W 43 C/W 33 C/W 36 C/W 35 C/W is specified for device in socket DICE CHARACTERISTICS OP291 Die Size 0.070 ...

Page 6

OP191/OP291/OP491–Typical Performance Characteristics 180 V = +3V S 160 BASED ON 1200 140 OP AMPS 120 100 –0.18 –0.10 –0.02 0.06 0.14 0.22 INPUT OFFSET VOLTAGE – mV Figure 2. ...

Page 7

–10 –20 –30 –40 –50 10 100 1k 10k 100k 1M 10M FREQUENCY – Hz Figure 11. Closed-Loop Gain vs. Frequency ...

Page 8

OP191/OP291/OP491–Typical Performance Characteristics + + BASED ON 600 OP AMPS –.50 –.30 –.10 .10 .30 .50 INPUT OFFSET VOLTAGE – mV Figure 20. OP291 Input ...

Page 9

–10 –20 –30 –40 –50 10 100 1k 10k 100k 1M 10M FREQUENCY – Hz Figure 29. Closed-Loop Gain vs. Frequency ...

Page 10

OP191/OP291/OP491–Typical Performance Characteristics +9.8Vp 100k L 4 PARTS 0.1 0.5 1 100 ...

Page 11

CMRR 140 +25 C 120 A 100 –20 –40 100 1k 10k 100k 1M 10M FREQUENCY – Hz Figure 47. CMRR vs. Frequency ...

Page 12

OP191/OP291/OP491 FUNCTIONAL DESCRIPTION The OP191/OP291/OP491 are single supply, micropower amplifiers featuring rail-to-rail inputs and outputs. In order to achieve wide input and output ranges, these amplifiers employ unique input and output stages. As the simplified schematic shows (Figure 55), the ...

Page 13

... For more information on general overvoltage characteristics of amplifiers refer to the 1993 System Applications Guide, available from the Analog Devices Literature Center. Output Voltage Phase Reversal Some operational amplifiers designed for single-supply operation exhibit an output voltage phase reversal when their inputs are driven beyond their useful common-mode range ...

Page 14

OP191/OP291/OP491 APPLICATIONS Single +3 V Supply, Instrumentation Amplifier The OP291’s low supply current and low voltage operation make it ideal for battery powered applications such as the instrumentation amplifier shown in Figure 59. The circuit utilizes the classic two op ...

Page 15

A +2.5 V Reference from Supply In many single-supply applications, the need for a 2.5 V reference often arises. Many commercially available monolithic 2.5 V references require at least a minimum operating supply voltage ...

Page 16

OP191/OP291/OP491 Cold Junction Compensated Thermocouple Amplifier The OP291’s low supply operation makes it ideal for +3 V battery powered applications such as the thermocouple amplifier shown in Figure 64. The K-type thermocouple terminates in an isothermal block ...

Page 17

Hz/60 Hz Active Notch Filter with False Ground To process ac signals in a single-supply system often best to use a false-ground biasing scheme. A circuit that uses this approach is illustrated in Figure ...

Page 18

... OP191/OP291/OP491 * OP491 SPICE Macro-model * * * Copyright 1994 by Analog Devices * * Refer to “README.DOC” file for License Statement. Use of * this model indicates your acceptance of the terms and pro- * visions in the License Statement Node assignments * noninverting input * inverting input * positive supply * negative supply * * .SUBCKT OP491 1 ...

Page 19

Epoxy DIP (P Suffix 0.280 (7.11) PIN 1 0.240 (6.10 0.430 (10.92) 0.348 (8.84) 0.060 (1.52) 0.210 0.015 (0.38) (5.33) MAX 0.130 0.160 (4.06) (3.30) MIN 0.115 (2.93) SEATING 0.022 (0.558) 0.100 0.070 (1.77) PLANE ...

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