PIN CONFIGURATIONS Very low offset voltage: 125 μV maximum Supply current: 250 μA maximum Input bias current: 200 pA maximum Low input offset voltage drift: 0.5 μV/°C Very low voltage noise: 11 nV/√Hz Operating temperature: −40°C to +125°C Rail-to-rail output swing ±2.5 V to ±18 V operation OUT A 1 14 OUT D –IN A 2 13 –IN D +IN A 3 12 +IN D V+ 4 +IN B 5 –IN B 6 9 –IN C OUT B 7 8 OUT C AD8508 TOP VIEW 11 V– (Not to Scale) 10 +IN C 06900-045 FEATURES OUT D NC 16 15 14 13 –IN A 1 +IN A 2 VCC 3 12 –IN D ADA4004-4 11 +IN D TOP VIEW (Not to Scale) 10 VEE 9 +IN C 5 6 7 8 –IN B OUT C –IN C +IN B 4 NC = NO CONNECT 05577-090 Portable precision instrumentation Laser diode control loops Strain gage amplifiers Medical instrumentation Thermocouple amplifiers OUT A APPLICATIONS NC Figure 1. 14-Lead TSSOP (RU-14) OUT B Preliminary Technical Data Quad, Low Power, Precision Rail-to-Rail Output Op Amp AD8624 Figure 2. 16-Lead LFCSP (CP-16-4 Suffix) GENERAL DESCRIPTION The AD8624 is a quad, precision rail-to-rail output operational amplifier with a low supply current of only 350 μA maximum over temperature and supply voltages. It offers low offset, drift, and voltage noise combined with very low input bias currents over the full operating temperature range. Table 1. Low Power Op Amps With typical offset voltage of only 10 μV, offset drift of 0.5 μV/°C, and noise of only 11nV/√Hz, it is perfectly suited for applications where large error sources cannot be tolerated. Many systems can take advantage of the low noise, dc precision, and rail-to-rail output swing provided by the ADA8624 to maximize the signal-to-noise ratio and dynamic range for low power operation. Supply 40 V 36 V 12 V to 16 V 5V Single OP97 OP297 OP196 AD8663 OP296 AD8667 AD8603 Dual The AD8624 is specified over the extended industrial temperature range of −40°C to +125°C. The AD8624 is available in an 14-lead TSSOP and 16-lead LFCSP (4x4x0.85mm) surface-mount package. The AD8624 is part of a growing family of 36 V, low power op amps from Analog Devices. Quad OP497 OP777 OP1177 OP727 OP2177 AD706 AD8622 OP747 OP4177 AD704 OP496 AD8669 AD8607 AD8609 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. 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 ©2009 Analog Devices, Inc. All rights reserved. AD8624 Preliminary Technical Data SPECIFICATIONS ELECTRICAL CHARACTERISTICS—±2.5 V OPERATION VS = ±2.5 V, VCM = 0 V, VO = 0 V, TA = +25°C, unless otherwise specified. Table 2. Parameter INPUT CHARACTERISTICS Offset Voltage Symbol Conditions Min VOS Offset Voltage Drift Input Bias Current ΔVOS/ΔT IB Input Offset Current IOS −40°C ≤ TA ≤ +125°C −40°C ≤ TA ≤ +125°C Typ Max Unit 10 125 230 1.2 200 400 200 300 +1.3 μV μV μV/°C pA pA pA pA V dB dB dB dB GΩ TΩ pF pF 0.5 30 −40°C ≤ TA ≤ +125°C Input Voltage Range Common-Mode Rejection Ratio CMRR Open-Loop Gain AVO Input Resistance, Differential Mode Input Resistance, Common Mode Input Capacitance, Differential Mode Input Capacitance, Common Mode OUTPUT CHARACTERISTICS Output Voltage High 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 Voltage Noise Voltage Noise Density Uncorrelated Current Noise Density Correlated Current Noise Density 25 −40°C ≤ TA ≤ +125°C −40°C ≤ TA ≤ +125°C VCM = −1.3 V to +1.3 V −40°C ≤ TA ≤ +125°C RL = 10 kΩ, VO = −2.0 V to +2.0 V −40°C ≤ TA ≤ +125°C −1.3 110 107 118 109 RINDM RINCM CINDM CINCM VOH VOL ISC ZOUT PSRR ISY 120 135 1 1 5.5 3 RL = 100 kΩ to ground −40°C ≤ TA ≤ +125°C RL = 10 kΩ to ground −40°C ≤ TA ≤ +125°C RL = 100 kΩ to ground −40°C ≤ TA ≤ +125°C RL = 10 kΩ to ground −40°C ≤ TA ≤ +125°C 2.45 2.41 2.40 2.36 2.45 −2.49 −2.45 −2.45 −2.41 −2.40 −2.36 ±30 2 F = 1 kHz, Av = 1 VS = ±2.0 V to ±18.0 V −40°C ≤ TA ≤ +125°C IO = 0 mA −40°C ≤ TA ≤ +125°C 2.49 125 120 145 175 225 310 V V V V V V V V mA Ω dB dB μA μA SR GBP ΦM RL = 10 kΩ, CL = 20 pF, AV = 1 CL = 20 pF, AV = 1 CL = 20 pF, AV = 1 0.4 580 72 V/μs kHz Degrees en p-p en in in f = 0.1 Hz to 10 Hz f = 1 kHz f = 1 kHz f = 1 kHz 0.2 12 0.15 0.07 μV p-p nV/√Hz pA/√Hz pA/√Hz Rev. PrA | Page 2 of 4 Preliminary Technical Data AD8624 ELECTRICAL CHARACTERISTICS—±15 V OPERATION VS = ±15 V, VCM = 0 V, VO = 0 V, TA = +25°C, unless otherwise specified. Table 3. Parameter INPUT CHARACTERISTICS Offset Voltage Symbol Conditions Min VOS Offset Voltage Drift Input Bias Current ΔVOS/ΔT IB Input Offset Current IOS −40°C ≤ TA ≤ +125°C −40°C ≤ TA ≤ +125°C Typ Max Unit 10 125 230 1.2 200 500 200 500 +13.8 μV μV μV/°C pA pA pA pA V dB dB dB dB GΩ TΩ pF pF 0.5 45 −40°C ≤ TA ≤ +125°C 35 −40°C ≤ TA ≤ +125°C Input Voltage Range Common-Mode Rejection Ratio CMRR Open-Loop Gain AVO Input Resistance, Differential Mode Input Resistance, Common Mode Input Capacitance, Differential Mode Input Capacitance, Common Mode OUTPUT CHARACTERISTICS Output Voltage High 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 Voltage Noise Voltage Noise Density Uncorrelated Current Noise Density Correlated Current Noise Density VCM = −13.8 V to +13.8 V −40°C ≤ TA ≤ +125°C RL = 10 kΩ, VO = −13.5 V to +13.5 V −40°C ≤ TA ≤ +125°C −13.8 125 112 125 120 RINDM RINCM CINDM CINCM VOH VOL ISC ZOUT PSRR ISY 135 137 1 1 5.5 3 RL = 10 kΩ to ground −40°C ≤ TA ≤ +125°C RL = 100 kΩ to ground −40°C ≤ TA ≤ +125°C RL = 10 kΩ to ground −40°C ≤ TA ≤ +125°C RL = 100 kΩ to ground −40°C ≤ TA ≤ +125°C 14.94 14.84 14.86 14.75 14.89 −14.97 −14.89 −14.94 −14.92 −14.90 −14.80 ±40 1.5 f = 1kHz, Av = 1 VS = ±2.0 V to ±18.0 V −40°C ≤ TA ≤ +125°C IO = 0 mA IO = 0 mA, −40°C ≤ TA ≤ +125°C 14.97 125 120 145 215 250 350 V V V V V V V V mA Ω dB dB μA μA SR GBP ΦM RL = 10 kΩ, CL = 20 pF, AV = 1 CL = 20 pF, AV = 1 CL = 20 pF, AV = 1 0.48 600 72 V/μs kHz Degrees en p-p en in in f = 0.1 Hz to 10 Hz f = 1 kHz f = 1 kHz f = 1 kHz 0.2 11 0.15 0.06 μV p-p nV/√Hz pA/√Hz pA/√Hz Rev. PrA | Page 3 of 4 AD8624 Preliminary Technical Data ABSOLUTE MAXIMUM RATINGS Table 4. Parameter Supply Voltage Input Voltage Input Current1 Differential Input Voltage Output Short-Circuit Duration to GND Storage Temperature Range Operating Temperature Range Junction Temperature Range Lead Temperature (Soldering, 60 sec) 1 Rating ± 18 V ±V supply ±10 mA ±10 V Indefinite −65°C to +150°C −40°C to +125°C −65°C to +150°C 300°C The input pins have clamp diodes to power the supply pins. The input current should be limited to 10 mA or less whenever input signals exceed the power supply rail by 0.5 V. THERMAL RESISTANCE θJA is specified for the worst-case conditions, that is, a device soldered in a circuit board for surface-mount packages. This was measured using a standard 2-layer board. Table 5. Thermal Resistance Package Type 14-Lead TSSOP (RU-14) 16-Lead LFCSP (CP-16) ESD CAUTION Stresses above those listed under Absolute Maximum Ratings may cause permanent damage to the device. This is a stress rating only; functional operation of the device at these or any other conditions above those indicated in the operational section of this specification is not implied. Exposure to absolute maximum rating conditions for extended periods may affect device reliability. ©2009 Analog Devices, Inc. All rights reserved. Trademarks and registered trademarks are the property of their respective owners. PR08573-0-9/09(PrA) Rev. PrA | Page 4 of 4 θJA TBD TBD θJC TBD TBD Unit °C/W °C/W