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| Preliminary Technical Data FEATURES High linearity PSRR: 105dB minimum CMRR: 105 dB typical Very low supply current: 20 A/amp maximum 1.8 V to 5.5 V single-supply operation Rail-to-rail input and output Low noise 2.9 V p-p from 0.1 Hz to 10 Hz 4 mV offset voltage maximum Very low input bias current: 1 pA typical Micropower, Rail-to-Rail I/O, High Linearity Amplifiers AD8506 PIN CONFIGURATIONS BALL A1 CORNER 1 2 3 A OUT A B V+ OUT B -IN +IN -IN 02731-057 C V- +IN AD8606 TOP VIEW (BALL SIDE DOWN) APPLICATIONS Pressure and position sensors Remote security Medical monitors Battery-powered consumer equipment Hazard detectors Figure 1. 8-Ball WLCSP GENERAL DESCRIPTION The AD8506 is a dual micro-power amplifier featuring rail-to-rail input and output swings while operating from a 1.8 V to 5.5 V single power supply. Employing a new circuit technology, these low cost amplifiers offer high linearity (excellent PSRR and CMRR performance) and very low bias current, while operating with a supply current of less than 20 A per amplifier. This combination of features makes the AD8506 amplifier an ideal choice for battery-powered applications since it minimizes errors due to power supply voltage variations over the battery's lifetime and maintains relatively high CMRR for a rail-to-rail op amp. Remote battery-powered sensors, handheld instrumentation and consumer equipment, hazard detection (for example, smoke, fire, and gas), and patient monitors can benefit from the features of the AD8506 amplifier. The AD8506 is specified for both the industrial temperature range (-40C to +85C) and the extended industrial temperature range (-40C to +125C). AD8506 dual amplifiers are available in the standard 8-lead MSOP and WLCSP. OUT A -IN A +IN A V- 1 8 AD8506 V+ OUT B -IN B +IN B Figure 2. 8-Lead MSOP (RM Suffix) 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 (c)2007 Analog Devices, Inc. All rights reserved. AD8506 TABLE OF CONTENTS Features .............................................................................................. 1 Applications....................................................................................... 1 General Description ......................................................................... 1 Pin Configurations ........................................................................... 1 Revision History ............................................................................... 2 Specifications..................................................................................... 3 Electrical Characteristics - VS = 5V........................................... 3 Electrical Characteristics - VS =1.8V ........................................ 4 Absolute Maximum Ratings............................................................ 5 Preliminary Technical Data Thermal Resistance .......................................................................5 ESD Caution...................................................................................5 Typical Performance Characteristics ..............................................6 Terminology .......................................................................................7 Theory of Operation .........................................................................8 Applications Information .................................................................9 Outline Dimensions ....................................................................... 10 Ordering Guide .......................................................................... 10 REVISION HISTORY 10/07--Revision 0: Initial Version Rev. PrA | Page 2 of 10 Preliminary Technical Data SPECIFICATIONS ELECTRICAL CHARACTERISTICS - VS = 5V VS = 5 V, VCM = Vs/2, TA = 25C, unless otherwise specified. Table 1. Parameter INPUT CHARACTERISTICS Offset Voltage Input Bias Current Symbol VOS IB Conditions 0 V < VCM < 5 V 1 -40C < TA < +85C -40C < TA < +125C Input Offset Current IOS -40C < TA < +85C -40C < TA < +125C -40C < TA < +125C VCM = 0 V to 5 V -40C < TA < +85C -40C < TA < +125C 0.05 < VOUT < 4.95 -40C < TA < +85C -40C < TA < +125C -40C < TA < +85C -40C < TA < +125C RL = 100 k to GND RL = 10 k to GND RL = 100 k to VS RL = 10 k to VS -40C to +85C -40C to +125C POWER SUPPLY Power Supply Rejection Ratio PSRR VS = 1.8 V to 5 V -40C to +85C -40C to +125C VO = VS /2 -40C < TA < +125C 105 100 90 120 120 120 18 0.5 Min Typ Max 4 10 100 600 5 50 100 5 AD8506 Unit mV pA pA pA pA pA pA V dB dB dB dB dB dB V/C V/C V V mV mV mA mA mA dB dB dB A A mV/s kHz V p-p nV/Hz fA/Hz Input Voltage Range Common-Mode Rejection Ratio CMRR Large Signal Voltage Gain AVO 0 90 90 90 110 100 100 105 105 130 Offset Voltage Drift OUTPUT CHARACTERISTICS Output Voltage High Output Voltage Low Short Circuit Limit VOS/T 2.2 2.2 4.95 4.85 4.99 4.9 2 8 VOH VOL ISC 50 150 60 80 TBD Supply Current/Amplifier DYNAMIC PERFORMANCE Slew Rate Gain Bandwidth Product NOISE PERFORMANCE Peak-to-Peak Noise Voltage Noise Density Current Noise Density ISY 20 28 SR GBP en p-p en in f = 0.1 to 10 Hz f = 1 kHz f = 10 Hz 12 150 2.9 48 TBD Rev. PrA | Page 3 of 10 AD8506 ELECTRICAL CHARACTERISTICS - VS =1.8V VS = 1.8 V, VCM = Vs/2, TA = 25C, unless otherwise specified. Table 2. Parameter INPUT CHARACTERISTICS Offset Voltage Input Bias Current Symbol VOS IB Conditions 0 V < VCM < 1.8 V Min Preliminary Technical Data Typ Max 4 10 100 600 5 50 100 5 Unit mV pA pA pA pA pA pA V dB dB dB dB dB dB V/C V/C V V mV mV mA mA mA dB dB 1 -40C < TA < +85C -40C < TA < +125C Input Offset Current IOS -40C < TA < +85C -40C < TA < +125C -40C < TA < +125C VCM = 0 V to 1.8 V -40C < TA < +85C -40C < TA < +125C 0.05 < VOUT < 1.75 -40C < TA < +85C -40C < TA < +125C -40C < TA < +85C -40C < TA < +125C RL = 100 k to GND RL = 10 k to GND RL = 100 k to VS RL = 10 k to VS -40C to +85C -40C to +125C 0.5 Input Voltage Range Common-Mode Rejection Ratio CMRR Large Signal Voltage Gain AVO 0 90 85 85 110 100 100 105 100 130 Offset Voltage Drift OUTPUT CHARACTERISTICS Output Voltage High Output Voltage Low Short Circuit Limit VOS/T 2.2 2.2 1.75 1.65 TBD 1.7 TBD TBD 4 VOH VOL ISC 50 150 6 TBD POWER SUPPLY Power Supply Rejection Ratio PSRR Supply Current/Amplifier DYNAMIC PERFORMANCE Slew Rate Gain Bandwidth Product NOISE PERFORMANCE Peak-to-Peak Noise Voltage Noise Density Current Noise Density ISY VS = 1.8 V to 5 V -40C to +85C -40C to +125C VO = VS /2 -40C < TA < +125C 105 100 90 120 120 120 18 20 28 A A mV/s kHz V p-p nV/Hz fA/Hz SR GBP en p-p en in f = 0.1 to 10 Hz f = 1 kHz f = 10 Hz 12 150 2.9 48 TBD Rev. PrA | Page 4 of 10 Preliminary Technical Data ABSOLUTE MAXIMUM RATINGS Table 3. Parameter Supply Voltage Input Voltage Differential Input Voltage1 Output Short-Circuit Duration to Gnd Storage Temperature Range RM, CB Packages Operating Temperature Range Junction Temperature Range RM, CB Packages Lead Temperature (Soldering, 60 sec) 1 AD8506 THERMAL RESISTANCE Rating 6V Vs Vs Indefinite -65C to +150C -40C to +125C -65C to +150C 300C JA is specified for the worst-case conditions, that is, a device soldered in a circuit board for surface-mount packages. Table 4. Thermal Resistance Package Type 8-Lead MSOP (RM) 8-Ball WLCSP JA 190 TBD JC 44 TBD Unit C/W C/W ESD CAUTION Differential input voltage is limited to 5 V or the supply voltage, whichever is less. 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. PrA | Page 5 of 10 AD8506 TYPICAL PERFORMANCE CHARACTERISTICS Preliminary Technical Data Figure 3 Figure 6 Figure 4 Figure 7 Figure 5 Rev. PrA | Page 6 of 10 Preliminary Technical Data TERMINOLOGY Definition Term Definition Definition Term Definition Definition Term Definition Definition Term Definition Definition Term Definition Definition Term Definition AD8506 Rev. PrA | Page 7 of 10 AD8506 THEORY OF OPERATION Preliminary Technical Data Rev. PrA | Page 8 of 10 Preliminary Technical Data APPLICATIONS INFORMATION AD8506 Rev. PrA | Page 9 of 10 AD8506 OUTLINE DIMENSIONS 3.20 3.00 2.80 Preliminary Technical Data 3.20 3.00 2.80 8 5 1 5.15 4.90 4.65 4 PIN 1 0.65 BSC 0.95 0.85 0.75 0.15 0.00 0.38 0.22 SEATING PLANE 1.10 MAX 8 0 0.80 0.60 0.40 0.23 0.08 COPLANARITY 0.10 COMPLIANT TO JEDEC STANDARDS MO-187-AA Figure 8. 8-Lead Mini Small Outline Package [MSOP] (RM-8) Dimensions shown in millimeters 1.480 1.430 1.380 0.675 0.595 0.515 SEATING PLANE 3 2 1 BALL 1 IDENTIFIER 1.825 1.775 1.725 0.340 0.320 0.300 A B 0.50 BALL PITCH TOP VIEW (BALL SIDE DOWN) C Figure 9. 8-Ball Wafer Level Chip Scale Package [WLCSP] (CB-8-1) Dimensions shown in millimeters ORDERING GUIDE Model AD8506ARMZ1 AD8506ACBZ1 1 Temperature Range -40C to +125C -40C to +125C Package Description 8-Lead Mini Small Outline Package [MSOP] 8-Ball Wafer Level Chip Scale Package [WLCSP] Package Option RM-8 CB-8-1 Z = RoHS Compliant Part. (c)2007 Analog Devices, Inc. All rights reserved. Trademarks and registered trademarks are the property of their respective owners. PR06900-0-8/07(PrA) Rev. PrA | Page 10 of 10 090706-B 0.380 0.355 0.330 BOTTOM VIEW 0.27 0.24 0.21 (BALL SIDE UP) |
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