PRELIMINARY TECHNICAL DATA a Precision Very Low Noise Low Input Bias Current Wide Bandwidth JFET Operational Amplifiers Pr el i m i n ar y Technical Data FEATURES Low noise: 6nV/√ √ Hz Low Offset Voltage: 100µ µ V max. Low input Bias current 10pA max. Fast settling: 600ns to 0.01% Low Distortion Unity Gain Stable No Phase Reversal Dual supply operation: ±5V to ±13V AD8610 The AD8610 is specified over the extended industrial (-40° to +125°C) temperature range. The AD8610 is available in the 8-lead SOIC and the tiny MSOP8 surface mount packages. MSOP8 packaged devices are available only in Tape-and-Reel. APPLICATIONS Photodiode Amplifier ATE Instrumentation Sensors and Controls Precision filters High Fidelity Audio GENERAL DESCRIPTION The AD8610 is a precision JFET input amplifier featuring very low offset voltage and drift, very low input voltage and current noise, very low input bias current and wide bandwidth. Outputs are stable with capacitive loads of over 500pF in non-inverting unity gain. Output swings to within 1.2V of the supplies even with a 1kohm load, maximizing dynamic range with limited supply voltages. Applications for these amplifiers include electronic instruments, ATE front-end amplification and integrator circuits, CAT/MRI/Ultrasound medical instrumentation, photodiode amplification, fast precision filters and professional quality audio. REV. Pr0 9/27/01 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 which may result from its use. No license is granted by implication or otherwise under any patent or patent rights of Analog Dev ices. —1— One Technology Way, PO Box 9106, Norwood, MA 02062-9106, USA Tel: 617/329-4700 World Wide Web Site:http://www.analog.com Fax: 617/326-8703 © Analog Devices, Inc., 1997 PRELIMINARY TECHNICAL DATA AD8610 ELECTRICAL CHARACTERISTICS Parameter Symbol INPUT CHARACTERISTICS Offset Voltage AD8610B VOS (@ VS= ±5.0V, VCM = 0V, T A =+25°C unless noted Conditions Min Typ -40°C < T A < +125°C Offset Voltage AD8610A VOS +25C°< T A < +125°C Input Offset Current Units 100 µV 200 µV 250 µV 350 µV 850 µV -10 10 pA -40°C < T A < +85°C -250 250 pA -40°C < T A < +125°C -2.5 2.5 nA -10 10 pA -40°C < T A < +125°C Input Bias Current Max IB IOS -40°C < T A < +85°C -75 75 pA -40°C < T A < +125°C -150 150 pA 3 Input Voltage Range Common-Mode Rejection Ratio CMRR VCM = -1.5V to 2.5V -2 90 95 V dB Large Signal Voltage Gain AVO RL = 1 kΩ , Vo= -3V to 3V 100 200 V/mV Offset Voltage Drift AD8610B ∆VOS/∆T -40°C < T A < +125°C 0.3 1 µV/°C Offset Voltage Drift AD8610A ∆VOS/∆T -40°C < T A < +125°C 0.3 3.5 µV/°C OUTPUT CHARACTERISTICS Output Voltage High VOH RL = 1 kΩ, -40°C < T A < +125°C Output Voltage Low VOL RL = 1 kΩ, -40°C < T A < +125°C Output Current IOUT VDropout < 1.2V POWER SUPPLY Power Supply Rejection Ratio PSRR VS = ±5 V to ±13 V Supply Current/Amplifier ISY 3.8 V -3.8 100 V ±15 mA 110 dB VO = 0V 3000 µA -40°C <TA < +125°C 3500 µA DYNAMIC PERFORMANCE Slew Rate SR RL =2 kΩ Gain Bandwidth Product Settling time GBP tS NOISE PERFORMANCE Voltage Noise Voltage Noise Density Current Noise Density 50 V/µs AV=+1, 4V step, to 0.01% 25 350 MHz ns en p-p 0.1 Hz to 10 Hz 1.2 µV p-p en f = 1 kHz 6 nV/√Hz in f = 1 kHz 5 fA/√Hz —2— 40 REV. Pr0 9/27/01 PRELIMINARY TECHNICAL DATA AD8610 ELECTRICAL CHARACTERISTICS Parameter Symbol INPUT CHARACTERISTICS Offset Voltage AD8610B VOS Offset Voltage AD8610A VOS (@ VS= ±13V, VCM = 0V, T A =+25°C unless noted) Conditions Min Typ -40°C < T A < +125°C +25°C < T A < +125°C Input Offset Current IB Units 100 µV 200 µV 250 µV 350 µV 850 µV -10 10 pA -40°C < T A < +125°C Input Bias Current Max IB -40°C < T A < +85°C -250 250 pA IB -40°C < T A < +125°C -2.5 2.5 nA -10 10 pA -75 75 pA IOS IOS -40°C < T A < +85°C IOS -40°C < T A < +125°C -150 150 pA 10.5 110 V dB 200 V/mV Input Voltage Range Common-Mode Rejection Ratio CMRR VCM = -10V to 10V -10.5 90 Large Signal Voltage Gain AVO RL = 1 kΩ , Vo= -10V to 10V 100 Offset Voltage Drift AD8610B ∆VOS/∆T -40°C < T A < +125°C 0.5 1 µV/°C Offset Voltage Drift AD8610A ∆VOS/∆T -40°C < T A < +125°C 0.5 3.5 µV/°C OUTPUT CHARACTERISTICS Output Voltage High VOH RL = 1 kΩ, -40°C < T A < +125°C Output Voltage Low VOL RL = 1 kΩ, -40°C < T A < +125°C Output Current IOUT ±15 mA Short Circuit Current ISC ±65 mA POWER SUPPLY Power Supply Rejection Ratio PSRR VS = ±5 V to ±13 V Supply Current/Amplifier ISY VO = 0V 3000 µA -40°C < T A < +125°C 4000 µA DYNAMIC PERFORMANCE Slew Rate SR RL =2 kΩ Gain Bandwidth Product Settling time GBP tS NOISE PERFORMANCE Voltage Noise Voltage Noise Density Current Noise Density -11.75 V 11.75 100 dB 60 V/µs AV=+1, 10V step, to 0.01% 25 600 MHz ns en p-p 0.1 Hz to 10 Hz 1.2 µV p-p en f = 1 kHz 6 nV/√Hz in f = 1 kHz 5 fA/√Hz —3— 40 110 V REV. Pr0 9/27/01 PRELIMINARY TECHNICAL DATA AD8610 ABSOLUTE MAXIMUM RATINGS 1 Package Type θJA θJC Units Supply voltage .........................................................................27.3V Input Voltage....................................................................Vs- to Vs+ Differential Input Voltage ...................................... ±Supply Voltage Output Short-Circuit Duration .......................................... Indefinite Storage Temperature Range R, RM Package...............................................-65°C to +150°C Operating Temperature Range AD8610............................................................-40°C to +85°C Junction Temperature Range R, RM Package...............................................-65°C to +150°C Lead Temperature Range (Soldering, 60 Sec)........................+300°C 8-Pin MSOP (RM) 8-Pin SOIC (R) 190 158 44 43 °C/W °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 JA JA in circuit board for surface mount packages. ORDERING GUIDE Model AD8610ARM AD8610AR AD8610BR Temperature Range -40°C to +125°C -40°C to +125°C -40°C to +125°C Package Description 8-Pin MSOP 8-Pin SOIC 8-Pin SOIC —4— Package Option RM-8 R-8 R-8 REV. Pr0 9/27/01