Ultraprecision, 36 V, 2.8 nV/√Hz Dual Rail-to-Rail …

1 Ultraprecision, 36 V, nV/ Hz Dual Rail-to-Rail Output Op Amp Data Sheet AD8676. FEATURES PIN CONFIGURATIONS. Very low voltage noise nV/ Hz @ 1 kHz OUT A 1 8 V+. Rail-to-Rail output swing IN A 2 AD8676 7 OUT B. Low input bias current: 2 nA maximum +IN A 3 TOP VIEW 6 IN B. 06487-001. (Not to Scale). Very low offset voltage: 12 V typical V 4 5 +IN B. Low input offset drift: V/ C maximum Figure 1. 8-Lead SOIC_N (R-8). Very high gain: 120 dB. Wide bandwidth: 10 MHz typical OUT A 1 8 V+. 5 V to 18 V operation IN A 2 AD8676 7 OUT B. +IN A 3 TOP VIEW 6 IN B. 06487-002. APPLICATIONS (Not to Scale). V 4 5 +IN B. Precision instrumentation Figure 2. 8-Lead MSOP (RM-8). PLL filters Laser diode control loops Strain gage amplifiers Medical instrumentation Thermocouple amplifiers GENERAL DESCRIPTION.

2 The AD8676 precision operational amplifier offers ultralow The smaller packages and low power consumption afforded by offset, drift, and voltage noise combined with very low input the AD8676 allow maximum channel density or minimum bias currents over the full operating temperature range. The board size for space-critical equipment. AD8676 is a precision, wide bandwidth op amp featuring rail- to-rail output swings and very low noise. Operation is fully The AD8676 is specified for the extended industrial temperature specified from 5 V to 15 V. range ( 40 C to +125 C). The AD8676 is available in the 8-lead MSOP, and the popular 8-lead, narrow SOIC; both of which are The AD8676 features a Rail-to-Rail output like that of the OP184, lead-free packages.

3 MSOP packaged devices are only available but with wide bandwidth and even lower voltage noise, com- in tape and reel format. bined with the precision and low power consumption like that of the industry-standard OP07 amplifier. Unlike other low For the single version of this ultraprecision, Rail-to-Rail op amp, noise, Rail-to-Rail op amps, the AD8676 has very low input bias see the AD8675 data sheet. current and low input current noise. The AD8675 and AD8676 are members of a growing series of With typical offset voltage of only 12 V, offset drift of V/ C, low noise op amps offered by analog devices , Inc. and noise of only V p-p ( Hz to 10 Hz), the AD8676 is perfectly suited for applications where large error sources Table 1. Voltage Noise cannot be tolerated.

4 Precision instrumentation, PLL and other Package nV nV nV nV nV. precision filter circuits, position and pressure sensors, medical Single AD797 AD8597 ADA4004-1 AD8675 AD8671. Dual AD8599 ADA4004-2 AD8676 AD8672. instrumentation, and strain gage amplifiers benefit greatly from the very low noise, low input bias current, and wide bandwidth. Quad ADA4004-4 AD8674. Many systems can take advantage of the low noise, dc precision, and Rail-to-Rail output swing provided by the AD8676 to maxi- mize SNR and dynamic range. Rev. C. 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.

5 Specifications subject to change without notice. No One Technology Way, Box 9106, Norwood, MA 02062-9106, license is granted by implication or otherwise under any patent or patent rights of analog devices . Tel: Trademarks and registered trademarks are the property of their respective owners. Fax: 2006 2011 analog devices , Inc. All rights reserved. AD8676 Data Sheet TABLE OF CONTENTS. Features .. 1 Absolute Maximum Ratings ..5 Applications .. 1 Thermal Resistance ..5 Pin Configurations .. 1 Power Sequencing ..5 General Description .. 1 ESD Revision History .. 2 Typical Performance Characteristics ..6 3 Outline Dimensions .. 11 Electrical Specifications .. 3 Ordering Guide .. 11 REVISION HISTORY. 8/11 Rev. B to Rev. C 4/08 Rev. 0 to Rev.

6 A. Change to Y-Axis Label, Figure 9 .. 7 Changes to Table Changes to Table 11/09 Rev. A to Rev. B. Changes to Figure 6, Figure 7, Figure 8 ..6. Changes to General Description Section .. 1. Changes to Figure 9 through Figure 12 ..7. Added Table 1; Renumbered Sequentially .. 1. Changes to Figure 21, Figure 22, and Figure 25 ..9. Updated Outline Dimensions .. 11. Added Figure 26, Renumbered Sequentially ..9. Changes to Ordering Guide .. 11. Changes to Figure 10. Added Figure 28, Renumbered Sequentially .. 10. 10/06 Revision 0: Initial Version Rev. C | Page 2 of 12. Data Sheet AD8676. SPECIFICATIONS. ELECTRICAL SPECIFICATIONS. VS = V, VCM = 0 V, VO = 0 V, TA = +25 C, unless otherwise specified. Table 2. Parameter Symbol Conditions Min Typ Max Unit INPUT CHARACTERISTICS.

7 Offset Voltage VOS. B Grade (SOIC) 12 50 V. B Grade (MSOP) 60 V. A Grade (SOIC, MSOP) 100 V. Offset Voltage VOS 40 C TA +125 C. B Grade (SOIC, MSOP) 15 160 V. A Grade (SOIC, MSOP) 250 V. Input Bias Current IB 2 +2 nA. 40 C TA +125 C + nA. Input Offset Current IOS 1 +1 nA. 40 C TA +125 C + nA. Input Voltage Range + V. Common-Mode Rejection Ratio CMRR VCM = V to + V 105 130 dB. 40 C TA +125 C 105 dB. Open-Loop Gain AVO RL = 2 k to ground, 120 126 dB. VO = V to + V. 40 C TA +125 C 117 dB. Offset Voltage Drift VOS/ T 40 C TA +125 C V/ C. OUTPUT CHARACTERISTICS. Output Voltage High VOH RL = 10 k to ground + + V. 40 C TA +125 C + V. RL = 2 k to ground + + V. 40 C TA +125 C + V. Output Voltage Low VOL RL = 10 k to ground V. 40 C TA +125 C V. RL = 2 k to ground V.

8 40 C TA +125 C V. Short-Circuit Limit ISC +40 mA. Output Current IO 20 mA. POWER SUPPLY. Power Supply Rejection Ratio PSRR VS = V to V 106 120 dB. 40 C TA +125 C 106 120 dB. Supply Current/Amplifier ISY VO = 0 V mA. 40 C TA +125 C mA. DYNAMIC PERFORMANCE. Slew Rate SR RL = 2 k V/ s Gain Bandwidth Product GBP 10 MHz NOISE PERFORMANCE. Voltage Noise en p-p Hz to 10 Hz V p-p Voltage Noise Density en f = 1 kHz nV/ Hz Current Noise Density in f = 10 Hz pA/ Hz Rev. C | Page 3 of 12. AD8676 Data Sheet VS = 15 V, VCM = 0 V, VO = 0 V, TA = +25 C, unless otherwise specified. Table 3. Parameter Symbol Conditions Min Typ Max Unit INPUT CHARACTERISTICS. Offset Voltage VOS. B Grade (SOIC) 12 50 V. B Grade (MSOP) 60 V. A Grade (SOIC, MSOP) 100 V. Offset Voltage VOS 40 C TA +125 C.

9 B Grade (SOIC, MSOP) 15 160 V. A Grade (SOIC, MSOP) 250 V. Input Bias Current IB 2 +2 nA. 40 C TA +125 C + nA. Input Offset Current IOS 1 +1 nA. 40 C TA +125 C + nA. Input Voltage Range + V. Common-Mode Rejection Ratio CMRR VCM = V to + V 111 130 dB. 40 C TA +125 C 107 130 dB. Open-Loop Gain AVO RL = 2 k to ground, 123 132 dB. VO = V to + V. 40 C TA +125 C 117 dB. Offset Voltage Drift VOS/ T 40 C TA +125 C V/ C. OUTPUT CHARACTERISTICS. Output Voltage High VOH RL = 10 k to ground + + V. 40 C TA +125 C + V. RL = 2 k to ground + + V. 40 C TA +125 C + V. Output Voltage Low VOL RL = 10 k to ground V. 40 C TA +125 C V. RL = 2 k to ground V. 40 C TA +125 C V. Short-Circuit Limit ISC +40 mA. Output Current IO 20 mA. POWER SUPPLY. Power Supply Rejection Ratio PSRR VS = V to V 106 120 dB.

10 40 C TA +125 C 106 dB. Supply Current/Amplifier ISY VO = 0 V mA. 40 C TA +125 C mA. DYNAMIC PERFORMANCE. Slew Rate SR RL =10 k V/ s Gain Bandwidth Product GBP 10 MHz NOISE PERFORMANCE. Voltage Noise en p-p Hz to 10 Hz V p-p Voltage Noise Density en f = 1 kHz nV/ Hz Current Noise Density in f = 10 Hz pA/ Hz Rev. C | Page 4 of 12. Data Sheet AD8676. ABSOLUTE MAXIMUM RATINGS. THERMAL RESISTANCE. Table 4. Parameter Rating Table 5. Thermal Resistance Supply Voltage 18 V Package Type JA JC Unit Input Voltage V supply 8-Lead MSOP (RM) 210 45 C/W. Differential Input Voltage V 8-Lead SOIC_N (R) 158 43 C/W. Output Short-Circuit Duration to GND Indefinite Storage Temperature Range RM, R Packages 65 C to +150 C POWER SEQUENCING. Operating Temperature Range 40 C to +125 C The op amp supplies must be established simultaneously with, Junction Temperature Range or before, any input signals are applied.