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| 16V, 250 A Low Power, Low Noise Dual Precision CMOS Rail-to-Rail Output Operational Amplifiers Preliminary Technical Data FEATURES Lower Power at High voltage: 250 A typ Low Offset Voltage: 100 V Voltage Noise: 20 nV/Hz Low Input Bias Currents 1pA Max 04 AD8667 PIN CONFIGURATIONS 8-Lead MSOP (RM-8) Single-Supply Operation: 5 to 16 Volts Dual-Supply Operation: +/- 2.5 to +/-8 Volts Output drive: 10mA Unity Gain Stable APPLICATIONS Medical Equipment Physiological Measurement Precision References Buffer / Level Shifting Portable Operated Systems High density Power Budget Systems Multi-pole Filters Sensors Photodiode amplification ADC driver 04 AD8667 8-Lead SO (R-8) AD8667 GENERAL DESCRIPTION The AD8667 is a dual rail-to-rail output single supply and dual supply amplifiers that use Analog Devices' patented DigiTrim(R) trimming technique to achieve low offset voltage, 300V over the common mode range. The AD8667 family features an extended operating range with supply voltages up to 16 V for low power operation with ISY of < 325 over the extended industrial temperature. These devices are designed for low noise at higher voltages, 20 nV/Hz at 10 kHz and 23 nV/Hz at 1 kHz. They also feature low input bias currents of 1pA and 10mA output drive. The combination of low supply currents, low offsets, very low input bias currents, and wide supply range make these amplifiers useful in a wide variety of low power applications. Systems utilizing DC to low frequency measurements, or high impedance sensors, such as photo-diodes benefit from the combination of low input bias current, low noise, low offset and drive current. The wide operating voltage range matches today's high performance ADCs and DACs. Medical monitoring equipment can take advantage of the low voltage noise, high input impedance, low voltage and current noise,. The AD8667 is specified over the extended industrial (-40 to +125C) temperature range. 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. 08/31/2006 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. AD8667 ELECTRICAL CHARACTERISTICS (VS=+5.0V, VCM = VS/2, TA=+25C unless otherwise noted) Parameter INPUT CHARACTERISTICS Offset Voltage Symbol VOS Conditions VSY = 8V, VCM = 3V VCM = - 0.1V to 3.0V -40< TA < +85C -40< TA < +125C Min Preliminary Technical Data Typ Max 100 Units V V V V 30 300 650 750 Input Bias Current IB -40< TA < +85C -40< TA < +125C 0.3 1 50 300 pA pA pA pA Input Offset Current IOS -40< TA < +85C -40< TA < +125C 0.2 20 75 -0.1 80 70 3 95 85 4 IL = 1mA -40C < TA < +125C 4.6 200 250 5 100 80 95 250 325 0.2 550 60 f=0.1Hz to 10 Hz f=10kHz f=1kHz f=1kHz 3.5 20 23 4.8 pA pA V dB V/mV V/C V V mV mV mA dB A A V/s s kHz degrees V p-p nV/Hz nV/Hz pA/Hz Input Voltage Range Common-Mode Rejection Ratio Large Signal Voltage Gain Offset Voltage Drift OUTPUT CHARACTERISTICS Output Voltage High IVR CMRR AVO VOS/T VOH VCM = -0.1V to 3.0V RL = 2 k VO= 0.5V to 4.5V Output Voltage Low Short Circuit Current Closed Loop Output Impedance POWER SUPPLY Power Supply Rejection Ratio Supply Current/Amplifier DYNAMIC PERFORMANCE Slew Rate Settling Time 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 IL = 1mA -40C < TA < +125C f=100kHz, AV = 1 VS = 5 V to 16 V VO = 0V -40< TA < +125C SR ts GBP Oo en p-p en en in RL =2 k To 0.1%, 0 V to 1V step Rev. PrA | Page 2 of 4 Preliminary Technical Data ELECTRICAL CHARACTERISTICS (VS=16V, VCM = VS/2, TA=+25C unless otherwise noted) 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 Input Offset Current IOS -40< TA < +85C -40< TA < +125C Input Voltage Range Common-Mode Rejection Ratio Large Signal Voltage Gain Offset Voltage Drift OUTPUT CHARACTERISTICS Output Voltage High IVR CMRR AVO VOS/T VOH IL = 1mA IL = 10mA -40C < TA < +125C Output Voltage Low VOL IL = 1mA IL = 10mA -40C < TA < +125C Short Circuit Current Closed Loop Output Impedance POWER SUPPLY Power Supply Rejection Ratio Supply Current/Amplifier DYNAMIC PERFORMANCE Slew Rate Settling Time Gain Bandwidth Product Phase Margin NOISE PERFORMANCE Peak-to-Peak Noise Voltage Noise Density Voltage Noise Density Current Noise Density ISC ZOUT PSRR ISY f=100 kHz, AV = 1 VS = 5V to 16V VO = 0V -40< TA < +125C SR ts GBP Oo en p-p en en in f=0.1Hz to 10 Hz f=1kHz f=10kHz f=1kHz RL =2 k To 0.1%, 0 V to 1V step 550 60 3.5 23 20 80 15.8 15 14.7 51 550 900 10 100 95 250 325 0.3 80 VCM = -0.1V to +14.0V RL=2 k VO= 0.5V to+15.5V -0.1 80 70 95 85 3 15.9 15.2 0.2 20 75 14 0.3 30 Min Typ Max 100 300 650 750 1 50 300 AD8667 Units V V V V pA pA pA pA pA pA V dB V/mV V/C V V V mV mV mV mA dB A A V/s s kHz degrees V p-p nV/Hz nV/Hz pA/Hz Rev. PrA | Page 3 of 4 AD8667 Preliminary Technical Data Notes Rev. PrA | Page 4 of 4 PR06276-0-9/06(PrA) |
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