AD8519

8 MHz Rail-to-Rail Operational Amplifiers AD8519/AD8529 FEATURES Space-saving SC70 and SOT-23 packaging Wide bandwidth: 8 MHz @ 5 V Low offset voltage: 1.2 mV maximum Rail-to-rail output swing 2.9 V/μs slew rate Unity gain stable Single-supply operation: 2.7 V to 12 V PIN CONFIGURATIONS NC –IN A +IN A V– 1 2 3 4 8 7 6 NC V+ OUT A 01756-001 01756-002 AD8519 NC = NO CONNECT 5 NC Figure 1. 8-Lead SOIC (R Suffix) AD8519 APPLICATIONS Portable communications Microphone amplifiers Portable phones Sensor interface Active filters PCMCIA cards ASIC input drivers Wearable computers Battery-powered devices Voltage reference buffers Personal digital assistants OUT A 1 V– 2 +IN A 3 5 V+ 4 –IN A Figure 2. 5-Lead SC70 and SOT-23 (KS and RJ Suffixes) OUT A –IN A +IN A V– 1 2 3 4 AD8529 8 7 6 5 V+ OUT B 01756-003 –IN B +IN B Figure 3. 8-Lead SOIC and MSOP (R and RM Suffixes) GENERAL DESCRIPTION The AD8519 and AD8529 are rail-to-rail output bipolar amplifiers with a unity gain bandwidth of 8 MHz and a typical voltage offset of less than 1 mV. The AD8519 brings precision and bandwidth to the SC70 and SOT-23 packages. The low supply current makes the AD8519/AD8529 ideal for batterypowered applications. The rail-to-rail output swing of the AD8519/AD8529 is larger than standard video op amps, making them useful in applications that require greater dynamic range than standard video op amps. The 2.9 V/μs slew rate makes the AD8519/AD8529 a good match for driving ASIC inputs such as voice codecs. The small SC70 package makes it possible to place the AD8519 next to sensors, reducing external noise pickup. The AD8519/AD8529 is specified over the extended industrial (−40°C to +125°C) temperature range. The AD8519 is available in 5-lead SC70 and 5-lead SOT-23 packages, and an 8-lead SOIC surface-mount package. The AD8529 is available in 8-lead SOIC and 8-lead MSOP packages. Rev. D 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 ©1998–2007 Analog Devices, Inc. All rights reserved. AD8519/AD8529 TABLE OF CONTENTS Features .............................................................................................. 1 Applications....................................................................................... 1 Pin Configurations ........................................................................... 1 General Description ......................................................................... 1 Revision History ............................................................................... 2 Specifications..................................................................................... 3 Electrical Characteristics............................................................. 3 Absolute Maximum Ratings............................................................ 7 Thermal Resistance ...................................................................... 7 ESD Caution...................................................................................7 Typical Performance Characteristics ..............................................8 Applications Information .............................................................. 12 Maximum Power Dissipation ................................................... 12 Precision Full-Wave Rectifier ................................................... 12 10× Microphone Preamp Meets PC99 Specifications ........... 13 Two-Element Varying Bridge Amplifier ................................. 13 Outline Dimensions ....................................................................... 14 Ordering Guide .......................................................................... 15 REVISION HISTORY 5/07—Rev. C to Rev. D Changes to Features.......................................................................... 1 Changes to General Description .................................................... 1 Changes to Two-Element Bridge Amplifier Section.................. 13 Updated Outline Dimensions ....................................................... 14 2/03—Rev. B to Rev. C Changed μSOIC to MSOP.................................................Universal Changed SO-8 to R-8 .........................................................Universal Changes to Precision Full-Wave Rectifier section ....................... 9 Changes to 10× Microphone Preamp Meets PC99 Specifications section................................................................... 9 Updated Outline Dimensions ....................................................... 12 Rev. D | Page 2 of 16 AD8519/AD8529 SPECIFICATIONS ELECTRICAL CHARACTERISTICS VS = 5.0 V, V− = 0 V, VCM = 2.5 V, TA = 25°C, unless otherwise noted. Table 1. Parameter INPUT CHARACTERISTICS Offset Voltage Symbol VOS Conditions AD8519AKS, AD8519ART −40°C ≤ TA ≤ +125°C AD8519AR (R-8), AD8529 −40°C ≤ TA ≤ +125°C −40°C ≤ TA ≤ +125°C Input Offset Current Input Voltage Range Common-Mode Rejection Ratio Large Signal Voltage Gain IOS −40°C ≤ TA ≤ +125°C VCM CMRR AVO 0 V ≤ VCM ≤ 4.0 V, −40°C ≤ TA ≤ +125°C RL = 2 kΩ, 0.5 V < VOUT < 4.5 V RL = 10 kΩ, 0.5 V < VOUT < 4.5 V RL = 10 kΩ, −40°C ≤ TA ≤ +125°C 0 63 50 30 100 30 100 2 500 IL = 250 μA −40°C ≤ TA ≤ +125°C I L = 5 mA IL = 250 μA −40°C ≤ TA ≤ +125°C I L = 5 mA Short to ground, instantaneous Min Typ 600 800 600 Max 1100 1300 1000 1100 300 400 ±50 ±100 4 Unit μV μV μV μV nA nA nA nA V dB V/mV V/mV V/mV μV/°C pA/°C Input Bias Current IB Offset Voltage Drift Bias Current Drift OUTPUT CHARACTERISTICS Output Voltage Swing High ∆VOS/∆T ∆IB/∆T VOH 4.90 4.80 80 200 ±70 ±25 110 80 600 V V mV mV mA mA dB dB μA μA V/μs ns MHz Degrees μV p-p nV/√Hz pA/√Hz Output Voltage Swing Low VOL Short-Circuit Current Maximum Output Current POWER SUPPLY Power Supply Rejection Ratio Supply Current/Amplifier DYNAMIC PERFORMANCE Slew Rate Settling Time Gain Bandwidth Product Phase Margin NOISE PERFORMANCE Voltage Noise Voltage Noise Density Current Noise Density ISC IOUT PSRR ISY VS = 2.7 V to 7 V −40°C ≤ TA ≤ +125°C VOUT = 2.5 V −40°C ≤ TA ≤ +125°C 1 V < VOUT < 4 V, RL = 10 kΩ To 0.01% 1200 1400 SR tS GBP Φm en p-p en in 2.9 1200 8 60 0.5 10 0.4 0.1 Hz to 10 Hz f = 1 kHz f = 1 kHz Rev. D | Page 3 of 16 AD8519/AD8529 VS = 3.0 V, V− = 0 V, VCM = 1.5 V, TA = 25°C, unless otherwise noted. Table 2. Parameter INPUT CHARACTERISTICS Offset Voltage Symbol VOS Conditions AD8519AKS, AD8519ART −40°C ≤ TA ≤ +125°C AD8519AR (R-8), AD8529 −40°C ≤ TA ≤ +125°C Min Typ 700 900 700 Max 1200 1400 1100 1200 300 ±50 2 Unit μV μV μV μV nA nA V dB V/mV V/mV V V mV mV dB μA μA V/μs ns MHz Degrees nV/√Hz pA/√Hz Input Bias Current Input Offset Current Input Voltage Range Common-Mode Rejection Ratio Large Signal Voltage Gain OUTPUT CHARACTERISTICS Output Voltage Swing High Output Voltage Swing Low POWER SUPPLY Power Supply Rejection Ratio Supply Current/Amplifier DYNAMIC PERFORMANCE Slew Rate Settling Time Gain Bandwidth Product Phase Margin NOISE PERFORMANCE Voltage Noise Density Current Noise Density IB IOS VCM CMRR AVO 0 0 V ≤ VCM ≤ 2.0 V, −40°C ≤ TA ≤ +125°C RL = 2 kΩ, 0.5 V < VOUT < 2.5 V RL = 10 kΩ IL = 250 μA I L = 5 mA IL = 250 μA I L = 5 mA VS = 2.5 V to 7 V, −40°C ≤ TA ≤ +125°C VOUT = 1.5 V −40°C ≤ TA ≤ +125°C RL = 10 kΩ To 0.01% 55 20 2.90 2.80 75 20 30 VOH VOL 100 200 60 80 600 PSRR ISY 1100 1300 SR tS GBP Φm en in 1.5 2000 6 55 10 0.4 f = 1 kHz f = 1 kHz Rev. D | Page 4 of 16 AD8519/AD8529 VS = 2.7 V, V− = 0 V, VCM = 1.35 V, TA = 25°C, unless otherwise noted. Table 3. Parameter INPUT CHARACTERISTICS Offset Voltage Symbol VOS Conditions AD8519AKS, AD8519ART −40°C ≤ TA ≤ +125°C AD8519AR (R-8), AD8529 −40°C ≤ TA ≤ +125°C Min Typ 700 900 700 Max 1400 1600 1200 1300 300 ±50 2 Unit μV μV μV μV nA nA V dB V/mV V/mV V V mV mV Input Bias Current Input Offset Current Input Voltage Range Common-Mode Rejection Ratio Large Signal Voltage Gain OUTPUT CHARACTERISTICS Output Voltage Swing High Output Voltage Swing Low POWER SUPPLY Power Supply Rejection Ratio Supply Current/Amplifier DYNAMIC PERFORMANCE Slew Rate Settling Time Gain Bandwidth Product Phase Margin NOISE PERFORMANCE Voltage Noise Density Current Noise Density IB IOS VCM CMRR AVO 0 V ≤ VCM ≤ 1.7 V, −40°C ≤ TA ≤ +125°C RL = 2 kΩ, 0.5 V < VOUT < 2.2 V RL = 10 kΩ IL = 250 μA I L = 5 mA IL = 250 μA I L = 5 mA VS = 2.5 V to 7 V −40°C ≤ TA ≤ +125°C VOUT = 1.35 V −40°C ≤ TA ≤ +125°C RL = 10 kΩ To 0.01% 0 55 20 2.60 2.50 75 20 30 VOH VOL 100 200 PSRR ISY 60 80 600 1100 1300 dB μA μA V/μs ns MHz Degrees nV/√Hz pA/√Hz SR tS GBP Φm en in 1.5 2000 6 55 10 0.4 f = 1 kHz f = 1 kHz Rev. D | Page 5 of 16 AD8519/AD8529 VS = 5.0 V, V− = −5 V, VCM = 0 V, TA = 25°C, unless otherwise noted. Table 4. Parameter INPUT CHARACTERISTICS Offset Voltage Symbol VOS Conditions AD8519AKS, AD8519ART −40°C ≤ TA ≤ +125°C AD8519AR (R-8), AD8529 −40°C ≤ TA ≤ +125°C VCM = 0 V VCM = 0 V, −40°C ≤ TA ≤ +125°C VCM = 0 V VCM = 0 V, −40°C ≤ TA ≤ +125°C −5 −4.9 V ≤ VCM ≤ +4.0 V, −40°C ≤ TA ≤ +125°C RL = 2 kΩ RL = 10 kΩ −40°C ≤ TA ≤ +125°C 70 50 25 100 30 200 2 500 IL = 250 μA −40°C ≤ TA ≤ +125°C I L = 5 mA IL = 250 μA −40°C ≤ TA ≤ +125°C IL = 5 mA Short to ground, instantaneous Min Typ 600 800 600 Max 1100 1300 1000 1100 300 400 ±50 ±100 +4 Unit μV μV μV μV nA nA nA nA V dB V/mV V/mV V/mV μV/°C pA/°C Input Bias Current Input Offset Current Input Voltage Range Common-Mode Rejection Ratio Large Signal Voltage Gain IB IOS VCM CMRR AVO Offset Voltage Drift Bias Current Drift OUTPUT CHARACTERISTICS Output Voltage Swing High ∆VOS/∆T ∆IB/∆T VOH 4.90 4.80 −4.90 −4.80 ±70 ±25 60 100 600 V V V V mA mA dB μA μA V/μs ns MHz Degrees nV/√Hz pA/√Hz Output Voltage Swing Low VOL Short-Circuit Current Maximum Output Current POWER SUPPLY Power Supply Rejection Ratio Supply Current/Amplifier DYNAMIC PERFORMANCE Slew Rate Settling Time Gain Bandwidth Product Phase Margin NOISE PERFORMANCE Voltage Noise Density Current Noise Density ISC IOUT PSRR ISY VS = ±1.5 V to ±6 V, −40°C ≤ TA ≤ +125°C VOUT = 0 V −40°C ≤ TA ≤ +125°C −4 V < VOUT < +4 V, RL = 10 kΩ To 0.01% 1200 1400 SR tS GBP Φm en in 2.9 1000 8 60 10 0.4 f = 1 kHz f = 1 kHz Rev. D | Page 6 of 16 AD8519/AD8529 ABSOLUTE MAXIMUM RATINGS Table 5. Parameter Supply Voltage Input Voltage1 Differential Input Voltage2 Storage Temperature Range Operating Temperature Range Junction Temperature Range Lead Temperature Range (Soldering, 60 sec) 1 THERMAL RESISTANCE Rating ±6 V ±6 V ±0.6 V −65°C to +150°C −40°C to +125°C −65°C to +150°C 300°C Table 6. Package Type 5-Lead SC70 (KS) 5-Lead SOT-23 (RJ) 8-Lead SOIC (R) 8-Lead MSOP (RM) 1 θJA1 376 230 158 210 θJC 126 146 43 45 Unit °C/W °C/W °C/W °C/W θJA is specified for worst-case conditions, that is, θJA is specified for device soldered in circuit board for SOT-23 and SOIC packages. For supply voltages less than ±6 V, the input voltage is limited to less than or equal to the supply voltage. 2 For differential input voltages greater than ±0.6 V, the input current should be limited to less than 5 mA to prevent degradation or destruction of the input devices. 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. Rev. D | Page 7 of 16 AD8519/AD8529 TYPICAL PERFORMANCE CHARACTERISTICS 60 VS = 5V TA = 25°C 40 COUNT = 395 OP AMPS 0 INPUT BIAS CURRENT (nA) VS = 5V TA = 25°C 50 QUANTITY OF AMPLIFIERS –40 –80 –120 –160 –200 –240 40 30 20 10 01756-004 –0.6 –0.2 0.2 0.6 1.0 0 1 2 3 4 5 INPUT OFFSET VOLTAGE (mV) COMMON-MODE VOLTAGE (V) Figure 4. Input Offset Voltage Distribution 600 Figure 7. Input Bias Current vs. Common-Mode Voltage 120 VS = 5V COMMON-MODE REJECTION (dB) 100 SUPPLY CURRENT (µA) 550 80 60 500 40 01756-008 01756-005 450 20 0 1 2 3 4 5 COMMON-MODE VOLTAGE (V) 0 2 4 6 8 10 12 SUPPLY VOLTAGE (V) Figure 5. Supply Current per Amplifier vs. Supply Voltage 800 VS = 5V Figure 8. Common-Mode Rejection vs. Common-Mode Voltage 50 40 GAIN 30 20 PHASE 10 0 –10 –20 –30 100k 135 180 225 270 VS = 5V TA = 25°C 700 600 VS = 10V 500 VS = 2.7V, 3.0V 400 01756-006 90 –25 0 25 50 75 100 125 150 1M 10M FREQUENCY (Hz) 100M TEMPERATURE (°C) Figure 6. Supply Current per Amplifier vs. Temperature Figure 9. Open-Loop Gain, Phase vs. Frequency Rev. D | Page 8 of 16 01756-009 300 –50 PHASE SHIFT (Degrees) SUPPLY CURRENT (µA) OPEN-LOOP GAIN (dB) 45 01756-007 0 –1.0 AD8519/AD8529 60 VS = 5V RL = 830Ω TA = 25°C CL ≤ 5pF 60 VS = 5V VCM = 2.5V RL = 10kΩ TA = 25°C VIN = ±50mV 40 50 CLOSED-LOOP GAIN (dB) 20 OVERSHOOT (%) 40 30 –OS 20 +OS 10 0 –20 01756-010 –40 10k 100k 1M FREQUENCY (Hz) 10M 100M 0 10 100 CAPACITANCE (pF) 1k Figure 10. Closed-Loop Gain vs. Frequency 110 100 90 80 70 60 50 40 01756-011 Figure 13. Overshoot vs. Capacitance Load 4 VS = 5V TA = 25°C 3 2 VS = 5V TA = 25°C 1% 0.1% STEP SIZE (V) CMRR (dB) 1 0 –1 0.1% –2 1% 01756-014 30 20 1k –3 –4 0 1 SETTLING TIME (µs) 2 10k 100k FREQUENCY (Hz) 1M 10M Figure 11. CMRR vs. Frequency 90 80 70 –PSRR 60 VS = 5V TA = 25°C 5 Figure 14. Step Size vs. Settling Time MAXIMUM OUTPUT SWING (V p-p) 4 DISTORTION < 1% 3 VS = 5V AVCC = 1 RL = 10kΩ TA = 25°C CL = 15pF PSRR (dB) +PSRR 50 40 30 20 01756-012 2 1 01756-015 10 0 1k 10k 100k FREQUENCY (Hz) 1M 10M 0 10k 100k FREQUENCY (Hz) 1M 10M Figure 12. PSRR vs. Frequency Figure 15. Output Swing vs. Frequency Rev. D | Page 9 of 16 01756-013 AD8519/AD8529 300 VS = 5V TA = 25°C 250 VS = ±2.5V AV = 100kΩ en = 0.4µV p-p OUTPUT IMPEDANCE (Ω) 200 AVCC = 10 150 100 AVCC = 1 50 01756-016 0 100k 20mV 1s 1M FREQUENCY (Hz) 10M Figure 16. Output Impedance vs. Frequency 80 70 60 50 40 30 20 01756-017 Figure 19. 0.1 Hz to 10 Hz Noise VS = 5V TA = 25°C VOLTAGE NOISE DENSITY (nV/ Hz) VS = ±2.5V VIN = 6V p-p AV = 1 10 0 10 100 FREQUENCY (Hz) 1k 10k 1V 20µs Figure 17. Voltage Noise Density 8 7 6 5 4 3 2 01756-018 Figure 20. No Phase Reversal CURRENT NOISE DENSITY (pA/ Hz) VS = 5V TA = 25°C VS = ±2.5V AVCC = 1 TA = 25°C CL = 100pF RL = 10kΩ 1 0 10 100 FREQUENCY (Hz) 1k 10k 20mV 500ns Figure 18. Current Noise Density Figure 21. Small Signal Transient Response Rev. D | Page 10 of 16 01756-021 01756-020 01756-019 AD8519/AD8529 VS = ±2.5V AVCC = 1 TA = 25°C CL = 100pF 500mV 50µs Figure 22. Large Signal Transient Response 01756-022 Rev. D | Page 11 of 16 AD8519/AD8529 APPLICATIONS INFORMATION MAXIMUM POWER DISSIPATION The maximum power that can be safely dissipated by the AD8519/AD8529 is limited by the associated rise in junction temperature. The maximum safe junction temperature is 150°C for these plastic packages. If this maximum is momentarily exceeded, proper circuit operation is restored as soon as the die temperature is reduced. Operating the product in an overheated condition for an extended period can result in permanent damage to the device. VIN R1 10kΩ R4 10kΩ R2 10kΩ NODE A R3 4.99kΩ R5 10kΩ D1 1N914 U1 R6 5kΩ D2 1N914 U2 VOUT AD8519 AD8519 VCC 2 R7 3.32kΩ 01756-023 PRECISION FULL-WAVE RECTIFIER Slew rate is probably the most underestimated parameter when designing a precision rectifier. Yet without a good slew rate, large glitches are generated during the period when both diodes are off. The operation of the basic circuit (shown in Figure 23) should be examined before considering the slew rate further. U1 is set up to have two states of operation. D1 and D2 diodes switch the output between the two states. State one is an inverter with a gain of +1, and state two is a simple unity gain buffer where the output is equal to the value of the virtual ground. The virtual ground is the potential present at the noninverting node of the U1. State one is active when VIN is larger than the virtual ground. D2 is on in this condition. If VIN drops below virtual ground, D2 turns off and D1 turns on. This causes the output of U1 to simply buffer the virtual ground and this configuration is state two. Therefore, the function of U1, which results from these two states of operation, is a half-wave inverter. The U2 function takes the inverted half wave at a gain of two and sums it into the original VIN wave, which outputs a rectified full wave. VIRTUAL GROUND = Figure 23. Precision Full-Wave Rectifier Switching glitches are caused when D1 and D2 are both momentarily off. This condition occurs every time the input signal is equal to the virtual ground potential. When this condition occurs, the U1 stage is taken out of the VOUT equation and VOUT is equal to VIN × R5 × (R4 || R1 + R2 + R3). Note that Node A should be VIN inverted or virtual ground, but in this condition, Node A is simply tracking VIN. Given a sine wave input centered around virtual ground, glitches are generated at the sharp negative peaks of the rectified sine wave. If the glitches are hard to notice on an oscilloscope, raise the frequency of the sine wave until they become apparent. The size of the glitches is proportional to the input frequency, the diode turn-on potential (0.2 V or 0.65 V), and the slew rate of the op amp. R6 and R7 are both necessary to limit the amount of bias current related voltage offset. Unfortunately, there is no perfect value for R6 because the impedance at the inverting node is altered as D1 and D2 switch. Therefore, there is also some unresolved bias current related offset. To minimize this offset, use lower value resistors or choose an FET amplifier if the optimized offset is still intolerable. The AD8519 offers a unique combination of speed vs. power ratio at 2.7 V single supply, small size (SC70 and SOT-23), and low noise that makes it an ideal choice for most high volume and high precision rectifier circuits. VOUT = VIN − 2 V IN −1 < 0 This type of rectifier can be very precise if the following electrical parameters are adhered to: • • • All passive components should be of tight tolerance, 1% for resistors and 5% for capacitors. If the application circuit requires high impedance (that is, direct sensor interface), then an FET amplifier is a better choice than the AD8519. An amp such as the AD8519, which has a great slew rate specification, yields the best result because the circuit involves switching. Rev. D | Page 12 of 16 AD8519/AD8529 10× MICROPHONE PREAMP MEETS PC99 SPECIFICATIONS This circuit, while lacking a unique topology, is anything but featureless when an AD8519 is used as the op amp. This preamp gives 20 dB gain over a frequency range of 20 Hz to 20 kHz and is fully PC99 compliant in all parameters including THD + N, dynamic range, frequency range, amplitude range, and crosstalk. Not only does this preamp comply with the PC99 specifications, it far surpasses them. In fact, when the input noise is 120 dB, this preamp has a VOUT noise of around 100 dB, which is suitable for most professional 20-bit audio systems. At 120 dB THD + N in unity gain, the AD8519 is suitable for 24-bit professional audio systems. In other words, the AD8519 will not be the limiting performance factor in audio systems despite its small size and low cost. Slew rate related distortion is not present at the lower voltages because the AD8519 is so fast at 2.1 V/μs. A general rule of thumb for determining the necessary slew rate for an audio system is to take the maximum output voltage range of the device, given the design’s power rails, and divide by two. In Figure 24, the power rails are 2.7 V and the output is rail-to-rail. Enter these numbers into the equation: 2.7/2 = 1.35 V, and the minimum ideal slew rate is 1.35 V/μs. While this data sheet gives only one audio example, many audio circuits are enhanced with the use of the AD8519. Examples include: active audio filters such as bass, treble, and equalizers; PWM filters at the output of audio DACs; buffers and summers for mixing stations; and gain stages for volume control. 240pF 2.7V 1kΩ MIC IN 1nF NPO C1 1µF 30.9kΩ 2.7V 3.09kΩ CODEC LINE IN OR MIC IN 1 TWO-ELEMENT VARYING BRIDGE AMPLIFIER There are a host of bridge configurations available to designers. For a complete analysis, look at the ubiquitous bridge and its different forms. Refer to the 1992 Amplifier Applications Guide 1 . Figure 25 is a schematic of a two-element varying bridge. This configuration is commonly found in pressure and flow transducers. With a two-element varying bridge, the signal is 2× as compared to a single-element varying bridge. The advantages of this type of bridge are gain setting range and single-supply application. Negative characteristics are nonlinear operation and required R matching. Given these sets of conditions, requirements, and characteristics, the AD8519 can be successfully used in this configuration because of its rail-to-rail output and low offset. Perhaps the greatest benefits of the AD8519, when used in the bridge configuration, are the advantages it can bring when placed in a remote bridge sensor. For example, the tiny SC70 and SOT-23 packages reduce the overall sensor size; low power allows for remote powering via batteries or solar cells, high output current drive to drive a long cable; and 2.7 V operation for two-cell operation. 2.7V RF R R R R AD8519 RF 01756-025 Figure 25. Two-Element Varying Bridge Amplifier Adolfo Garcia and James Wong, Chapter 2, 1992, Amplifier Applications Guide. AD8519 46.4kΩ 93.1kΩ 48kΩ 2.7V 01756-024 10µF ELECT Figure 24. 10× Microphone Preamplifier Rev. D | Page 13 of 16 AD8519/AD8529 OUTLINE DIMENSIONS 5.00 (0.1968) 4.80 (0.1890) 3.20 3.00 2.80 4.00 (0.1574) 3.80 (0.1497) 8 1 5 4 6.20 (0.2441) 5.80 (0.2284) 3.20 3.00 2.80 8 5 1 5.15 4.90 4.65 4 1.27 (0.0500) BSC 0.25 (0.0098) 0.10 (0.0040) COPLANARITY 0.10 SEATING PLANE 1.75 (0.0688) 1.35 (0.0532) 0.50 (0.0196) 0.25 (0.0099) 8° 0° 0.25 (0.0098) 0.17 (0.0067) 1.27 (0.0500) 0.40 (0.0157) 45° PIN 1 0.65 BSC 0.95 0.85 0.75 0.15 0.00 012407-A 0.51 (0.0201) 0.31 (0.0122) 1.10 MAX 8° 0° 0.80 0.60 0.40 COMPLIANT TO JEDEC STANDARDS MS-012-A A CONTROLLING DIMENSIONS ARE IN MILLIMETERS; INCH DIMENSIONS (IN PARENTHESES) ARE ROUNDED-OFF MILLIMETER EQUIVALENTS FOR REFERENCE ONLY AND ARE NOT APPROPRIATE FOR USE IN DESIGN. 0.38 0.22 SEATING PLANE 0.23 0.08 COPLANARITY 0.10 COMPLIANT TO JEDEC STANDARDS MO-187-AA Figure 26. 8-Lead Standard Small Outline Package [SOIC_N] Narrow Body (R-8) Dimensions shown in millimeters and (inches) 2.20 2.00 1.80 1.35 1.25 1.15 PIN 1 1.00 0.90 0.70 5 1 2 4 3 Figure 27. 8-Lead Mini Small Outline Package [MSOP] (RM-8) Dimensions shown in millimeters 2.90 BSC 2.40 2.10 1.80 5 4 1.60 BSC 1 2 3 2.80 BSC 0.65 BSC 1.10 0.80 0.40 0.10 0.46 0.36 0.26 1.30 1.15 0.90 PIN 1 0.95 BSC 1.90 BSC 0.10 MAX 0.30 0.15 SEATING PLANE 0.22 0.08 1.45 MAX 0.22 0.08 10° 5° 0° 0.60 0.45 0.30 0.10 COPLANARITY COMPLIANT TO JEDEC STANDARDS MO-203-AA 0.15 MAX 0.50 0.30 SEATING PLANE COMPLIANT TO JEDEC STANDARDS MO-178-A A Figure 28. 5-Lead Thin Shrink Small Outline Transistor Package [SC70] (KS-5) Dimensions shown in millimeters Figure 29. 5-Lead Small Outline Transistor Package [SOT-23] (RJ-5) Dimensions shown in millimeters Rev. D | Page 14 of 16 AD8519/AD8529 ORDERING GUIDE Model AD8519AKS-REEL7 AD8519AKSZ-REEL7 1 AD8519ART-REEL AD8519ART-REEL7 AD8519ARTZ-REEL1 AD8519ARTZ-REEL71 AD8519AR AD8519AR-REEL AD8519AR-REEL7 AD8519ARZ1 AD8519ARZ-REEL AD8519ARZ-REEL71 AD8529AR AD8529AR-REEL AD8529ARZ1 AD8529ARZ-REEL1 AD8529ARM-REEL AD8529ARMZ-REEL1 1 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 −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 −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 −40°C to +125°C −40°C to +125°C −40°C to +125°C Package Description 5-Lead SC70 5-Lead SC70 5-Lead SOT-23 5-Lead SOT-23 5-Lead SOT-23 5-Lead SOT-23 8-Lead SOIC_N 8-Lead SOIC_N 8-Lead SOIC_N 8-Lead SOIC_N 8-Lead SOIC_N 8-Lead SOIC_N 8-Lead SOIC_N 8-Lead SOIC_N 8-Lead SOIC_N 8-Lead SOIC_N 8-Lead MSOP 8-Lead MSOP Package Option KS-5 KS-5 RJ-5 RJ-5 RJ-5 RJ-5 R-8 R-8 R-8 R-8 R-8 R-8 R-8 R-8 R-8 R-8 RM-8 RM-8 Branding Information A3B A11 A3A A3A A3A# A3A# A5A A5A# Z = RoHS compliant part, # denotes RoHS compliant part may be top or bottom marked. Rev. D | Page 15 of 16 AD8519/AD8529 NOTES ©1998–2007 Analog Devices, Inc. All rights reserved. Trademarks and registered trademarks are the property of their respective owners. C01756–0–5/07(D) Rev. D | Page 16 of 16