Precision 20 MHz CMOS Rail-to-Rail Input/Output Operational Amplifiers Preliminary Technical Data AD8615/AD8616/AD8618 FEATURES Low Offset Voltage: 80µV typ. 300 µV max Single-Supply Operation: 2.7 to 6 Volts Low Noise: 8 nV/√Hz Wide Bandwidth: 20 MHz Slew Rate: 12 V/µs Low Distortion No Phase Reversal Low Input Bias Currents Unity Gain Stable APPLICATIONS Barcode Scanners Battery Powered Instrumentation Multi-pole Filters Sensors ASIC Input or Output Amplifier Audio Photodiode amplification GENERAL DESCRIPTION The AD8615, AD8616 and AD8618 are single, dual and quad rail-to-rail input and output single supply amplifiers featuring very low offset voltage, wide signal bandwidth, and low input voltage and current noise. These amplifiers use a patented trimming technique that achieves superior precision without laser trimming. All are fully specified to operate from +3V to +5V single supply. The combination of low offsets, low noise, very low input bias currents, and high speed make these amplifiers useful in a wide variety of applications. Filters, integrators, photo-diode amplifiers and high impedance sensors all benefit from the combination of performance features. Audio and other AC applications benefit from the wide bandwidth and low distortion. AD8618, quad, is available in 14-lead TSSOP and narrow 14pin SOIC packages. SOT, MSOP and TSSOP versions are available in tape and reel only. PIN CONFIGURATIONS 5-Lead SOT (RJ-5) AD8615 8-Lead SO (R-8) 8-Lead MSOP (RM-8) AD8616 14-Lead TSSOP (RU-14) AD8616 AD8618 14-Lead SO (R-14) AD8618 Applications for these amplifiers include Portable and looppowered instrumentation, audio amplification for portable devices, portable phone headsets, bar code scanners, and multi-pole filters. 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 single supply systems. The AD8615, AD8616 and AD8618 are specified over the extended industrial (-40° to +125°C) temperature range. The AD8615, single, is available in the tiny 5-lead SOT-23 package. The AD8616, dual, is available in the 8-lead microSOIC and narrow SOIC surface mount packages. The 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. One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A. 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Preliminary Technical Data ELECTRICAL CHARACTERISTICS AD8615/AD8616/AD8618 (VS=+3.0V, VCM = VS/2, TA=+25°C unless otherwise noted) Parameter Symbol Conditions Min INPUT CHARACTERISTICS Offset Voltage VOS VCM = 0V to 3V Typ Max Units 80 300 µV 750 µV 0.2 60 100 100 pA pA pA 0.1 30 50 500 3 -40°< TA < +125°C Input Bias Current IB -40°< TA < +85°C -40°< TA < +125°C Input Offset Current IOS Input Voltage Range Common-Mode Rejection Ratio CMRR VCM = 0V to 3V 0 68 83 pA pA pA V dB Large Signal Voltage Gain AVO RL = 2 kΩ VO= 0.5V to 2.5V 30 100 V/mV Offset Voltage Drift ∆VOS/∆T 2 µV/°C OUTPUT CHARACTERISTICS Output Voltage High VOH IL = 1mA -40°C < TA < +125°C Output Voltage Low VOL IL = 1mA -40°C < TA < +125°C Output Current IOUT Closed Loop Output Impedance ZOUT f=1 MHz, AV = 1 POWER SUPPLY Power Supply Rejection Ratio Supply Current/Amplifier PSRR ISY VS = 2.7 V to 5.5 V VO = 0V -40°< TA < +125°C DYNAMIC PERFORMANCE Slew Rate -40°< TA < +85°C -40°< TA < +125°C 2.92 2.88 2.95 20 V V 35 50 ±150 mA Ω 12 67 80 1.6 mV mV 2.0 TBD dB mA mA SR RL =2 kΩ 12 Settling Time Gain Bandwidth Product Phase Margin NOISE PERFORMANCE Voltage Noise Density ts GBP Øo To 0.01% <0.25 20 40 µs MHz degrees en f=1kHz 8 nV/√Hz Voltage Noise Density en f=10kHz 6 nV/√Hz Current Noise Density in f=1kHz 0.05 pA/√Hz -2- V/µs Rev PrA 6/2/03 Preliminary Technical Data AD8615/AD8616/AD8618 ELECTRICAL CHARACTERISTICS Parameter Symbol (@ VS=+5.0V, VCM = VS/2, TA=+25°C unless otherwise noted) Conditions Min Typ Max Units INPUT CHARACTERISTICS Offset Voltage VOS VCM = 0V to 5V 300 µV 750 µV 0.2 60 100 1000 pA pA pA 0.1 30 50 500 pA pA pA 5 80 -40°< TA < +125°C Input Bias Current IB -40°< TA < +85°C -40°< TA < +125°C Input Offset Current IOS -40°< TA < +85°C -40°< TA < +125°C Input Voltage Range Common-Mode Rejection Ratio CMRR VCM = 0V to 5V 0 74 89 V dB Large Signal Voltage Gain AVO VO= 0.5V to 4.5V, 30 70 V/mV Offset Voltage Drift ∆VOS/∆T 2 µV/°C OUTPUT CHARACTERISTICS Output Voltage High VOH IL = 1mA IL = 10mA -40°C to +125°C Output Voltage Low Output Voltage High VOL VOL IL = 1mA IL = 10mA -40°C to +125°C Output Current IOUT Closed Loop Output Impedance ZOUT f=1 MHz, AV = 1 POWER SUPPLY Power Supply Rejection Ratio PSRR VS = 2.7 V to 5.5 V Supply Current/Amplifier ISY VO = 0V -40°< TA < +125°C DYNAMIC PERFORMANCE Slew Rate RL = 2 kΩ , VCM= 0V 4.925 4.7 4.6 4.975 4.77 15 125 V V V 30 175 250 ±50 SR RL =2 kΩ Settling Time Full Power Bandwidth Gain Bandwidth Product Phase Margin NOISE PERFORMANCE Voltage Noise Density ts BWp GBP Øo To 0.01% <1% Distortion en Voltage Noise Density Current Noise Density 67 mV mV mV mA 10 Ω 80 dB 1.3 12 2.0 TBD mA mA V/µs <.5 TBD 20 40 µs kHz MHz degrees f=1kHz 8 nV/√Hz en f=10kHz 6 nV/√Hz in f=1kHz 0.05 pA/√Hz -3- Rev PrA 6/2/03 Preliminary Technical Data AD8615/AD8616/AD8618 ABSOLUTE MAXIMUM RATINGS1 Supply voltage ...........................................................................+6V Input Voltage....................................................................Gnd to Vs Differential Input Voltage .........................................................±6V Output Short-Circuit Duration to Gnd2 ....Observe Derating Curves Storage Temperature Range R, RT, RM, RU Package ............................... -65°C to +150°C Operating Temperature Range AD8615/AD8616/AD8618............................ -40°C to +125°C Junction Temperature Range R, RT, RM, RU Package ............................... -65°C to +150°C Lead Temperature Range (Soldering, 60 Sec) ...............+300°C Package Type θJA θJC Units 5-Pin SOT-23 (RT) 8-Pin microSOIC (RM) 8-Pin SOIC (R) 230 210 158 -45 43 °C/W °C/W °C/W 14-Pin SOIC (R) 120 36 °C/W 14-Pin TSSOP (RU) 180 35 °C/W NOTES 1 Absolute maximum ratings apply at 25°C, unless otherwise noted. 2 θ is specified for the worst-case conditions, i.e., θ is specified for device soldered in JA JA circuit board for surface mount packages. ORDERING GUIDE Model AD8615ARJ AD8616ARM AD8616AR AD8618AR AD8618ARU Temperature Range -40°C to +125°C -40°C to +125°C -40°C to +125°C -40°C to +125°C -40°C to +125°C Package Description 5-Pin SOT-23 8-Pin micro-SOIC 8-Pin SOIC 16-Pin SOIC 16-Pin TSSOP Package Option RT-5 RM-8 R-8 R-16 RU-16 Branding Information CAUTION ESD (electrostatic discharge) sensitive device. Electrostatic charges as high as 4000 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. -4- Rev PrA 6/2/03 Preliminary Technical Data AD8615/AD8616/AD8618 OUTLINE DIMENSIONS 5-Lead SOT-23 (RJ Suffix) 8-Lead ?SOIC (RM-8) 14-Lead TSSOP (RU-14) 8-Lead SO (R-8) 14-Lead SO (R-14) -5- Rev PrA 6/2/03