OP495GSZ 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 OP295 IN A 2 7 OUT B TOP VIEW Low offset voltage: 300 V +IN A 3 6 IN B (Not to Scale) Gain bandwidth product: 75 kHz V 4 5 +IN B High open-loop gain: 1000 V/mV Figure 1. 8-Lead Narrow-Body SOIC N Unity-gain stable S Suffix (R-8) Low supply current/per amplifier: 150 A maximum OUT A 1 8 V+ OP295 APPLICATIONS IN A 2 7 OUT B Battery-operated instrumentation +IN A 3 6 IN B Servo amplifiers V 4 5 +IN B Actuator drives Figure 2. 8-Lead PDIP Sensor conditioners P Suffix (N-8) Power supply control OUT A 1 14 OUT D GENERAL DESCRIPTION 2 IN A 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 7 achieved. Both input and output ranges include the negative OUT B 8 OUT C supply, providing the user with zero-in/zero-out capability. For 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 V 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 OP495 even in single-supply designs. V+ 4 13 V TOP VIEW (Not to Scale) +IN B 5 12 +IN C The ability to swing rail-to-rail and supply 15 mA to the load IN B 6 11 IN C makes the OP295/OP495 ideal drivers for power transistors and OUT B 7 10 OUT C H bridges. This allows designs to achieve higher efficiencies and NC 8 9 NC to transfer more power to the load than previously possible NC = NO CONNECT without the use of discrete components. 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. The OP295 and OP495 are specified over the extended indus- Stability while driving capacitive loads is another benefit of this trial (40C to +125C) temperature range. The OP295 is design over CMOS rail-to-rail amplifiers. This is useful for available in 8-lead PDIP and 8-lead SOIC N surface-mount driving coax cable or large FET transistors. The OP295/OP495 packages. The OP495 is available in 14-lead PDIP and 16-lead are stable with loads in excess of 300 pF. 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 Tel: 781.329.4700 www.analog.com license is granted by implication or otherwise under any patent or patent rights of Analog Devices. Fax: 781.461.3113 2009 Analog Devices, Inc. All rights reserved. Trademarks and registered trademarks are the property of their respective owners. 00331-001 00331-004 00331-003 00331-002OP295/OP495 TABLE OF CONTENTS Features .............................................................................................. 1 Direct Access Arrangement ...................................................... 10 Applications ....................................................................................... 1 Single-Supply Instrumentation Amplifier .............................. 10 General Description ......................................................................... 1 Single-Supply RTD Thermometer Amplifier ......................... 11 Pin Configurations ........................................................................... 1 Cold Junction Compensated, Battery-Powered Thermocouple Amplifier .......................................................... 11 Revision History ............................................................................... 2 5 V Only, 12-Bit DAC That Swings 0 V to 4.095 V .................... 11 Specif icat ions ..................................................................................... 3 4 mA to 20 mA Current-Loop Transmitter ............................ 12 Electrical Characteristics ............................................................. 3 3 V Low Dropout Linear Voltage Regulator ............................. 12 Absolute Maximum Ratings ............................................................ 5 Low Dropout, 500 mA Voltage Regulator with Foldback Thermal Resistance ...................................................................... 5 Current Limiting ........................................................................ 12 ESD Caution .................................................................................. 5 Square Wave Oscillator .............................................................. 13 Typical Performance Characteristics ............................................. 6 Single-Supply Differential Speaker Driver .............................. 13 Applications ....................................................................................... 9 High Accuracy, Single-Supply, Low Power Comparator ...... 13 Rail-to-Rail Application Information ........................................ 9 Outline Dimensions ....................................................................... 14 Low Drop-Out Reference ............................................................ 9 Ordering Guide .......................................................................... 16 Low Noise, Single-Supply Preamplifier ..................................... 9 Driving Heavy Loads ................................................................. 10 REVISION HISTORY 3/02Rev. B to Rev. C 8/09Rev. F to Rev. G Figure changes to Pin Connections ................................................ 1 Added Figure 18 ................................................................................ 8 Deleted OP295GBC and OP495GBC from Ordering Guide ...... 3 Updated Outline Dimensions ....................................................... 17 Deleted Wafer Test Limits Table ...................................................... 3 3/08Rev. E to Rev. F Changes to Absolute Maximum Ratings ........................................ 4 Changes to Offset Voltage Unit in Table 1 .................................... 3 Deleted Dice Characteristics ............................................................ 4 Updated Outline Dimensions ....................................................... 14 Changes to Ordering Guide .......................................................... 16 5/06Rev. D to Rev. E Updated Format .................................................................. Universal Changes to Features .......................................................................... 1 Changes to Pin Connections ........................................................... 1 Updated Outline Dimensions ....................................................... 14 Changes to Ordering Guide .......................................................... 15 2/04Rev. C to Rev. D Changes to General Description .................................................... 1 Changes to Specifications ................................................................ 2 Changes to Absolute Maximum Ratings ....................................... 4 Changes to Ordering Guide ............................................................ 4 Updated Outline Dimensions ....................................................... 12 Rev. G Page 2 of 16