AD8613

Low Cost Micropower, Low Noise CMOS Rail-toRail, Input/Output Operational Amplifiers AD8613/AD8617/AD8619 FEATURES Offset voltage: 2.2 mV max Low input bias current: 1 pA max Single-supply operation: 1.8 V to 5 V Low noise: 22 nV/√Hz Micropower: 38 μA No phase reversal Unity gain stable PIN CONFIGURATIONS OUT V– +IN 1 2 3 AD8613 TOP VIEW (Not to Scale) 5 V+ 05622-037 4 –IN Figure 1. 5-Lead SC70 and 5-Lead TSOT-23 OUT A 1 –IN A 2 8 V+ OUT B 05622-001 AD8617 TOP VIEW (Not to Scale) 7 6 5 APPLICATIONS Battery-powered instrumentation Multipole filters Current shunt sense Sensors ADC predrivers DAC drivers/level shifters Low power ASIC input or output amplifiers +IN A 3 V– 4 –IN B +IN B Figure 2. 8-Lead MSOP OUT A 1 –IN A 2 +IN A 3 8 V+ OUT B 05622-002 05622-036 AD8617 7 6 5 TOP VIEW V– 4 (Not to Scale) –IN B +IN B Figure 3. 8-Lead SOIC_N OUT A 1 2 3 4 5 6 7 14 OUT D 13 GENERAL DESCRIPTION The AD8613/AD8617/AD8619 are single, dual, and quad micropower, rail-to-rail input and output amplifiers that feature low supply current, low input voltage, and low current noise. The parts are fully specified to operate from 1.8 V to 5.0 V single supply, or ±0.9 V and ±2.5 V dual supply. The combination of low noise, very low input bias currents, and low power consumption make the AD8613/AD8617/AD8619 especially useful in portable and loop-powered instrumentation. The ability to swing rail-to-rail at both the input and output enables designers to buffer CMOS ADCs, DACs, ASICs, and other wide output swing devices in low power, single-supply systems. The AD8613 is available in a 5-lead SC70 package and a 5-lead TSOT-23 package. The AD8617 is available in 8-lead MSOP and 8-lead SOIC packages. The AD8619 is available in 14-lead TSSOP and 14-lead SOIC packages. –IN A +IN A V+ –IN D AD8619 TOP VIEW (Not to Scale) 12 +IN D 11 V– 10 9 8 +IN B –IN B OUT B +IN C –IN C OUT C 05622-035 Figure 4. 14-Lead TSSOP OUT A 1 14 13 OUT D –IN D +IN D –IN A 2 +IN A 3 V+ 4 AD8619 12 TOP VIEW 11 V– (Not to Scale) +IN B 5 10 +IN C –IN B 6 OUT B 7 9 8 –IN C OUT C Figure 5. 14-Lead SOIC_N Rev. B 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 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. Trademarks and registered trademarks are the property of their respective owners. One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A. Tel: 781.329.4700 www.analog.com Fax: 781.461.3113 ©2006 Analog Devices, Inc. All rights reserved. AD8613/AD8617/AD8619 TABLE OF CONTENTS Features .............................................................................................. 1 Applications....................................................................................... 1 General Description ......................................................................... 1 Pin Configurations ........................................................................... 1 Revision History ............................................................................... 2 Specifications..................................................................................... 3 Absolute Maximum Ratings............................................................ 5 Thermal Resistance .......................................................................5 ESD Caution...................................................................................5 Typical Performance Characteristics ..............................................6 Outline Dimensions ....................................................................... 12 Ordering Guide .......................................................................... 13 REVISION HISTORY 1/06—Rev. A to Rev. B Added AD8613 ...................................................................Universal Changes to Features.......................................................................... 1 Changes to Table 1............................................................................ 3 Changes to Table 2............................................................................ 4 Updated Outline Dimensions ....................................................... 12 Changes to Ordering Guide .......................................................... 13 10/05—Rev. 0 to Rev. A Added AD8619 ...................................................................Universal Change to Specifications Section ....................................................3 Updated Outline Dimensions....................................................... 12 Changes to Ordering Guide .......................................................... 13 9/05—Revision 0: Initial Version Rev. B | Page 2 of 16 AD8613/AD8617/AD8619 SPECIFICATIONS Electrical characteristics @ VS = 5 V, VCM = VS/2, TA = 25°C, unless otherwise noted. Table 1. Parameter INPUT CHARACTERISTICS Offset Voltage Offset Voltage Drift AD8613 Input Bias Current Symbol VOS ∆VOS/∆T IB −40°C < TA < +85°C −40°C < TA < +125°C Input Offset Current IOS −40°C < TA < +85°C −40°C < TA < +125°C 0 V < VCM < 5 V −40°C < TA < +125°C RL = 10 kΩ, 0.5 V < VO < 4.5 V 0.1 Conditions −0.3 V < VCM < +5.3 V −40°C < TA < +125°C, −0.3 V < VCM < +5.2 V −40°C < TA < +125°C Min Typ 0.4 1 2.5 0.2 Max 2.2 2.2 4.5 7.0 1 110 780 0.5 50 250 Unit mV mV μV/°C μV/°C pA pA pA pA pA pA dB dB V/mV pF pF V V V V mV mV mV mV mA Ω dB dB μA μA V/μs μs kHz kHz Degrees 3.5 μV nV/√Hz nV/√Hz pA/√Hz Common-Mode Rejection Ratio Large Signal Voltage Gain Input Capacitance OUTPUT CHARACTERISTICS Output Voltage High CMRR AVO CDIFF CCM VOH 95 68 235 500 1.9 2.5 4.98 4.7 4.50 20 190 ±80 15 67 64 94 38 50 0.1 23 400 350 70 2.3 25 22 0.05 30 50 275 335 Output Voltage Low VOL I L = 1 mA −40°C to +125°C IL = 10 mA −40°C to +125°C IL = 1 mA −40°C to +125°C IL = 10 mA −40°C to +125°C f = 10 kHz, AV = 1 1.8 V < VS < 5 V −40°C < TA < +125°C VO = VS/2 −40°C