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| Quad Low Noise, Precision 16V CMOS Rail-to-Rail Operational Amplifiers Preliminary Technical Data FEATURES Low Offset Voltage: 100 V max Low Input Bias Currents 1pA Max Single-Supply Operation: 5 to 16 Volts Dual-Supply Operation: +/- 2.5 to +/-8 Volts Low Noise: 10 nV/Hz Wide Bandwidth: 4 MHz Unity Gain Stable APPLICATIONS Multi-pole Filters Precision References Physiological Measurements Sensors Medical Equipment Consumer Audio Photodiode amplification Buffer / Level Shifting ADC driver GENERAL DESCRIPTION The AD8664 is a quad rail-to-rail output single supply amplifiers that use Analog Devices' patented DigiTrim(R) trimming technique to achieve low offset voltage. The AD8664 family features an extended operating range with supply voltages up to 16 V. They also feature low input bias currents, wide signal bandwidth, and low input voltage and current noise. The combination of low offsets, very low input bias currents, and wide supply range make these amplifiers useful in a wide variety of applications normally associated with much higher priced JFET amplifiers. Systems utilizing high impedance sensors, such as photo-diodes benefit from the combination of low input bias current, low noise, low offset and bandwidth. The wide operating voltage range matches today's high performance ADCs and DACs. Audio applications and medical monitoring equipment can take advantage of the high input impedance, low voltage and current noise, wide bandwidth and the lack of "popcorn" noise (found in many other low input bias current amplifiers). The AD8664 is specified over the extended industrial (-40 to +125C) temperature range. The AD8664, quad, is available in the 14-lead TSSOP and 14-lead SOIC package. Single Version: AD8661 Dual Version: AD8662 PIN CONFIGURATIONS 14-Lead TSSOP (RU-14) AD8664 AD8664 14-Lead SO (R-14) AD8664 REV. PrA 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. 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 companies. 2/2/2006 One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A. Tel: 781/329-4700 www.analog.com Fax: 781/326-8703 (c) 2006 Analog Devices, Inc. All rights reserved. AD8664 ELECTRICAL CHARACTERISTICS Parameter INPUT CHARACTERISTICS Offset Voltage Symbol VOS Conditions VSY = 8V, VCM = 3V VCM = -0.1V to 3.0V -40< TA < +85C -40< TA < +125C Preliminary Technical Data (VS=+5.0V, VCM = VS/2, TA=+25C unless otherwise noted) Min Typ Max 100 Units V V V V 30 200 1000 Input Bias Current IB -40< TA < +85C -40< TA < +125C 0.3 1 50 300 0.5 20 75 +3.0 pA pA pA pA pA pA V dB dB V/mV V/C V V V Input Offset Current IOS -40< TA < +85C -40< TA < +125C 0.2 Input Voltage Range Common-Mode Rejection Ratio Large Signal Voltage Gain Offset Voltage Drift OUTPUT CHARACTERISTICS Output Voltage High CMRR AVO VOS/T VOH VCM = -0.1V to 3.0V -40< TA < +125C RL = 2 k VO= 0.5V to 4.5V -0.1 85 80 100 100 100 240 3 9 IL = 1mA IL = 10mA -40C < TA < +125C IL = 1mA -40C < TA < +125C f=1 MHz, AV = 1 VS = 5 V to 16 V -40C < TA < +125C VO = 0V -40< TA < +125C RL =2 k 4.85 4.80 4.75 4.93 4.85 Output Voltage Low Short-Circuit Current Closed Loop Output Impedance POWER SUPPLY Power Supply Rejection Ratio Supply Current/Amplifier DYNAMIC PERFORMANCE Slew Rate Gain Bandwidth Product Phase Margin NOISE PERFORMANCE Peak-to-Peak Noise Voltage Noise Density Voltage Noise Density Current Noise Density VOL ISC ZOUT PSRR ISY 50 19 65 95 95 110 115 1.15 100 120 mV mV mA dB dB mA mA V/s MHz degrees 1.4 2.0 SR GBP Oo en p-p en en in 3 4 60 2.5 12 10 0.1 f=0.1Hz to 10 Hz f=1kHz f=10kHz f=1kHz V p-p nV/Hz nV/Hz pA/Hz Rev. PrA | Page 2 of 4 Preliminary Technical Data ELECTRICAL CHARACTERISTICS (V =16V, V S CM AD8664 = VS/2, TA=+25C unless otherwise noted) Min Typ Max 100 30 200 1000 Units V V V V Parameter INPUT CHARACTERISTICS Offset Voltage Symbol VOS Conditions VSY = 8V, VCM = 3V VCM = -0.1V to +14.0V -40< TA < +85C -40< TA < +125C Input Bias Current IB -40< TA < +85C -40< TA < +125C 0.3 1 50 300 0.5 20 75 +14 pA pA pA pA pA pA V dB V/mV Input Offset Current IOS -40< TA < +85C -40< TA < +125C 0.2 Input Voltage Range Common-Mode Rejection Ratio Large Signal Voltage Gain Offset Voltage Drift OUTPUT CHARACTERISTICS Output Voltage High CMRR AVO VOS/T VOH VCM = -0.1V to +14.0V -40< TA < +125C RL=2 k VO= 0.5V to+15.5V -0.1 90 90 200 110 110 420 3 9 V/C V V V IL = 1mA IL = 10mA -40C < TA < +125C IL = 1mA IL = 10mA -40C < TA < +125C f=1 MHz, AV = 1 VS = 5V to 16V -40C < TA < +125C VO = 0V -40< TA < +125C RL =2 k 15.95 15.6 15.5 15.97 15.7 Output Voltage Low VOL 24 210 140 45 95 95 110 115 1.25 50 350 450 Short-Circuit Current Closed Loop Output Impedance POWER SUPPLY Power Supply Rejection Ratio Supply Current/Amplifier DYNAMIC PERFORMANCE Slew Rate Gain Bandwidth Product Phase Margin NOISE PERFORMANCE Peak-to-Peak Noise Voltage Noise Density Voltage Noise Density Current Noise Density ISC ZOUT PSRR ISY mV mV mV mA dB dB mA mA V/s MHz degrees V p-p nV/Hz nV/Hz pA/Hz 1.55 2.1 SR GBP Oo en p-p en en in 3.5 4 65 2.5 12 10 0.1 f=0.1Hz to 10 Hz f=1kHz f=10kHz f=1kHz Rev. PrA | Page 3 of 4 AD8664 ABSOLUTE MAXIMUM RATINGS1 Supply voltage .........................................................................+18V Input Voltage ....................................................................Gnd to Vs Differential Input Voltage .......................................................18V Output Short-Circuit Duration to Gnd2.....Observe Derating Curves Storage Temperature Range R, RU Package...............................................-65C to +150C Operating Temperature Range AD8664 .........................................................-40C to +125C Junction Temperature Range R,RU Package................................................-65C to +150C Lead Temperature Range (Soldering, 60 Sec) ............. +300C Preliminary Technical Data Package Type 14-Pin SOIC (R) 14-Pin TSSOP (RU) NOTES 2 is specified for the worst-case conditions, i.e., is specified for device soldered JA JA in circuit board for surface mount packages. PR06194-0-6/06(PrA) JA 120 180 JC 36 35 Units C/W C/W 1 Absolute maximum ratings apply at 25C, unless otherwise noted. ORDERING GUIDE Temperature Range -40C to +125C -40C to +125C Package Description 14-Pin SOIC 14-Pin TSSOP Package Option R-14 RU-14 Branding Information Model AD8664ARZ AD8664ARUZ CAUTION ESD (electrostatic discharge) sensitive device. Electrostatic charges as high as 1500 V readily accumulate on the human body and test equipment and can discharge without detection. Although this device features proprietary ESD protection circuitry, permanent damage may occur on devices subjected to high-energy electrostatic discharges. Therefore, proper ESD precautions are recommended to avoid performance degradation or loss of functionality. Rev. PrA | Page 4 of 4 |
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