Datasheet OP295, OP495 (Analog Devices)

Dual/Quad Rail-to-Rail Operational Amplifiers OP295/OP495 FEATURES PIN CONFIGURATIONS Rail-to-rail output swing OUT A 1 8 V+ Single-supply operation: 3 V to 36 V –IN A 2 OP295 7 OUT B Low offset voltage: 300 μV TOP VIEW +IN A 3 (Not to Scale) 6 –IN B
1
Gain bandwidth product: 75 kHz V– 4 5 +IN B
-00 1 33
High open-loop gain: 1000 V/mV
00 Figure 1. 8-Lead Narrow-Body SOIC_N
Unity-gain stable
S Suffix (R-8)
Low supply current/per amplifier: 150 μA maximum OUT A APPLICATIONS 1 8 V+ OP295 –IN A 2 7 OUT B Battery-operated instrumentation +IN A 3 6 –IN B
2
Servo amplifiers
-00
V– 4 5 +IN B
31 03
Actuator drives
0 Figure 2. 8-Lead PDIP
Sensor conditioners
P Suffix (N-8)
Power supply control OUT A 1 14 OUT D GENERAL DESCRIPTION –IN A 2 13 –IN D
Rail-to-rail output swing combined with dc accuracy are the
+IN A 3 12 +IN D
key features of the OP495 quad and OP295 dual CBCMOS
V+ 4 OP495 11 V–
operational amplifiers. By using a bipolar front end, lower noise
+IN B 5 10 +IN C
and higher accuracy than those of CMOS designs have been
–IN B 6 9 –IN C
03 0 achieved. Both input and output ranges include the negative
OUT B 7 8 OUT C
1- 33 supply, providing the user with zero-in/zero-out capability. For 00 Figure 3. 14-Lead PDIP users of 3.3 V systems such as lithium batteries, the OP295/OP495 P Suffix (N-14) are specified for 3 V operation. Maximum offset voltage is specified at 300 μV for 5 V operation,
OUT A 1 16 OUT D
and the open-loop gain is a minimum of 1000 V/mV. This yields
–IN A 2 15 –IN D
performance that can be used to implement high accuracy systems,
+IN A 3 14 +IN D
even in single-supply designs.
OP495 V+ 4 TOP VIEW 13 V– (Not to Scale)
The ability to swing rail-to-rail and supply 15 mA to the load
+IN B 5 12 +IN C
makes the OP295/OP495 ideal drivers for power transistors and
–IN B 6 11 –IN C
H bridges. This allows designs to achieve higher efficiencies and
OUT B 7 10 OUT C
to transfer more power to the load than previously possible
NC 8 9 NC
4 00 1- without the use of discrete components.
NC = NO CONNECT
33 00 Figure 4. 16-Lead SOIC_W For applications such as transformers that require driving S Suffix (RW-16) inductive loads, increases in efficiency are also possible. Stability while driving capacitive loads is another benefit of this The OP295 and OP495 are specified over the extended indus- design over CMOS rail-to-rail amplifiers. This is useful for trial (−40°C to +125°C) temperature range. The OP295 is driving coax cable or large FET transistors. The OP295/OP495 available in 8-lead PDIP and 8-lead SOIC_N surface-mount are stable with loads in excess of 300 pF. packages. The OP495 is available in 14-lead PDIP and 16-lead SOIC_W surface-mount packages.
Rev. G 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 One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A. rights of third parties that may result from its use. Specifications subject to change without notice. No license is granted by implication or otherwise under any patent or patent rights of Analog Devices. Tel: 781.329.4700 www.analog.com Trademarks and registered trademarks are the property of their respective owners. Fax: 781.461.3113 ©2009 Analog Devices, Inc. All rights reserved.
Document Outline FEATURES APPLICATIONS GENERAL DESCRIPTION PIN CONFIGURATIONS TABLE OF CONTENTS REVISION HISTORY SPECIFICATIONS ELECTRICAL CHARACTERISTICS ABSOLUTE MAXIMUM RATINGS THERMAL RESISTANCE ESD CAUTION TYPICAL PERFORMANCE CHARACTERISTICS APPLICATIONS RAIL-TO-RAIL APPLICATION INFORMATION LOW DROP-OUT REFERENCE LOW NOISE, SINGLE-SUPPLY PREAMPLIFIER DRIVING HEAVY LOADS DIRECT ACCESS ARRANGEMENT SINGLE-SUPPLY INSTRUMENTATION AMPLIFIER SINGLE-SUPPLY RTD THERMOMETER AMPLIFIER COLD JUNCTION COMPENSATED, BATTERY-POWERED THERMOCOUPLE AMPLIFIER 5 V ONLY, 12-BIT DAC THAT SWINGS 0 V TO 4.095 V 4 mA TO 20 mA CURRENT-LOOP TRANSMITTER 3 V LOW DROPOUT LINEAR VOLTAGE REGULATOR LOW DROPOUT, 500 mA VOLTAGE REGULATOR WITH FOLDBACK CURRENT LIMITING SQUARE WAVE OSCILLATOR SINGLE-SUPPLY DIFFERENTIAL SPEAKER DRIVER HIGH ACCURACY, SINGLE-SUPPLY, LOW POWER COMPARATOR OUTLINE DIMENSIONS ORDERING GUIDE