FEATURES TYPICAL APPLICATIONS CIRCUIT ENHANCED PRODUCT FEATURES Supports defense and aerospace applications (AQEC standard) Extended industrial temperature range (−55°C to +125°C) Controlled manufacturing baseline 1 assembly/test site 1 fabrication site Enhanced product change notification Qualification data available upon request +7.5V 5V REF VDD C2 10µF C4 100nF C3 0.1µF +7.5V ADA4805-2-EP 0V TO VREF R3 20Ω IN+ C1 2.7nF REF VDD AD7980 IN– GND Figure 1. Driving the AD7980 with the ADA4805-2-EP The Analog Devices, Inc., proprietary extra fast complementary bipolar (XFCB) process allows both low voltage and low current noise (5.9 nV/√Hz, 0.6 pA/√Hz). The ADA4805-2-EP operates over a wide range of supply voltages from ±1.5 V to ±5 V, as well as single 3 V and 5 V supplies, making it ideal for high speed, low power instruments. The ADA4805-2-EP is available in an 8-lead MSOP package and is rated to work over the extended industrial temperature range of −55°C to +125°C. Additional application and technical information can be found in the ADA4805-1/ADA4805-2 data sheet. 0 INPUT FREQUENCY = 10kHz SNR = 89.4dB THD = 104dB SINAD = 89.3dB –20 –40 High resolution, high precision analog-to-digital converter (ADC) drivers Battery-powered instrumentation Micropower active filters Portable point of sales terminals Active radio frequency identification (RFID) readers Photomultipliers ADC reference buffers –60 AMPLITUDE (dB) APPLICATIONS –80 –100 –120 –140 –160 –180 GENERAL DESCRIPTION 0 The ADA4805-2-EP is a high speed voltage feedback, rail-to-rail output amplifier with an exceptionally low quiescent current of 500 µA, making it ideal for low power, high resolution data conversion systems. Despite being low power, this amplifier provides excellent overall performance. It offers a high bandwidth of 105 MHz at a gain of +1, a high slew rate of 160 V/µs, and a low input offset voltage of 125 µV (maximum). Rev. 0 ADA4805-2-EP ADR435 13741-010 Low input offset voltage: 125 µV (maximum) Low input offset voltage drift 0.4 µV/°C (typical) 2.7 µV/°C (maximum) Ultralow supply current: 500 µA per amplifier Fully specified at VS = 3 V, 5 V, ±5 V High speed performance −3 dB bandwidth: 105 MHz Slew rate: 160 V/µs Settling time to 0.1%: 35 ns Rail-to-rail outputs Input common-mode range: −VS − 0.1 V to +VS − 1 V Low noise: 5.9 nV/√Hz at 100 kHz; 0.6 pA/√Hz at 100 kHz Low distortion: −102 dBc/−126 dBc HD2/HD3 at 100 kHz Low input bias current: 470 nA (typical) Small packaging 8-lead MSOP 10 20 30 40 50 FREQUENCY (kHz) 60 70 80 13741-102 Enhanced Product 0.4 µV/°C Offset Drift, 105 MHz Low Power, Low Noise, Rail-to-Rail Amplifier ADA4805-2-EP Figure 2. FFT Plot for the Circuit Configuration in Figure 1 Table 1. Complementary ADCs to the ADA4805-2-EP Product AD7982 AD7984 AD7980 AD7685 ADC Power (mW) 7.0 10.5 4.0 10 Throughput (MSPS) 1 1.33 1 0.25 Resolution (Bits) 18 18 16 16 SNR (dB) 98 98.5 91 88 Document Feedback 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 ©2016 Analog Devices, Inc. All rights reserved. Technical Support www.analog.com ADA4805-2-EP Enhanced Product TABLE OF CONTENTS Features .............................................................................................. 1 Absolute Maximum Ratings ............................................................6 Enhanced Product Features ............................................................ 1 Thermal Resistance .......................................................................6 Applications ....................................................................................... 1 Maximum Power Dissipation ......................................................6 General Description ......................................................................... 1 ESD Caution...................................................................................6 Typical Applications Circuit............................................................ 1 Pin Configuration and Function Descriptions..............................7 Revision History ............................................................................... 2 Typical Performance Characteristics ..............................................8 Specifications..................................................................................... 3 Outline Dimensions ..........................................................................9 ±5 V Supply ................................................................................... 3 Ordering Guide .............................................................................9 5 V Supply...................................................................................... 4 3 V Supply...................................................................................... 5 REVISION HISTORY 4/16—Revision 0: Initial Version Rev. 0 | Page 2 of 9 Enhanced Product ADA4805-2-EP SPECIFICATIONS ±5 V SUPPLY VS = ±5 V at TA = 25°C; RF = 0 Ω for G = +1; otherwise, RF = 1 kΩ; RL = 2 kΩ to ground; unless otherwise noted. All specifications are per amplifier. Table 2. Parameter DYNAMIC PERFORMANCE −3 dB Bandwidth Bandwidth for 0.1 dB Flatness Slew Rate Settling Time to 0.1% NOISE/DISTORTION PERFORMANCE Harmonic Distortion, HD2/HD31 Input Voltage Noise Input Voltage Noise 1/f Corner Frequency 0.1 Hz to 10 Hz Voltage Noise Input Current Noise DC PERFORMANCE Input Offset Voltage Input Offset Voltage Drift2 Input Bias Current Input Offset Current Open-Loop Gain INPUT CHARACTERISTICS Input Resistance Common Mode Differential Mode Input Capacitance Input Common-Mode Voltage Range Common-Mode Rejection Ratio OUTPUT CHARACTERISTICS Output Overdrive Recovery Time (Rising/Falling Edge) Output Voltage Swing Short-Circuit Current Linear Output Current Capacitive Load Drive POWER SUPPLY Operating Range Quiescent Current per Amplifier Power Supply Rejection Ratio Positive Negative 1 2 Test Conditions/Comments Min Typ Max Unit G = +1, VOUT = 0.02 V p-p G = +1, VOUT = 2 V p-p G = +1, VOUT = 0.02 V p-p G = +1, VOUT = 2 V step G = +2, VOUT = 4 V step G = +1, VOUT = 2 V step G = +2, VOUT = 4 V step 120 40 18 190 250 35 78 MHz MHz MHz V/µs V/µs ns ns fC = 20 kHz, VOUT = 2 V p-p fC = 100 kHz, VOUT = 2 V p-p fC = 20 kHz, VOUT = 4 V p-p, G = +1 fC = 100 kHz, VOUT = 4 V p-p, G = +1 fC = 20 kHz, VOUT = 4 V p-p, G = +2 fC = 100 kHz, VOUT = 4 V p-p, G = +2 f = 100 kHz −114/−140 −102/−128 −109/−143 −93/−130 −113/−142 −96/−130 5.2 8 44 0.7 dBc dBc dBc dBc dBc dBc nV/√Hz Hz nV rms pA/√Hz f = 100 kHz TMIN to TMAX VOUT = −4.0 V to +4.0 V 107 13 0.4 550 2.1 111 125 2.7 800 25 50 260 1 VIN, CM = −4.0 V to +4.0 V VIN = +6 V to −6 V, G = +2 RL = 2 kΩ Sinking/sourcing <1% THD at 100 kHz, VOUT = 2 V p-p 30% overshoot −5.1 103 +4 130 95/100 −4.98 +4.98 85/73 ±58 15 2.7 570 +VS = 3 V to 5 V, −VS = −5 V +VS = 5 V, −VS = −3 V to −5 V fC is the fundamental frequency. Guaranteed, but not tested. Rev. 0 | Page 3 of 9 100 100 119 122 10 625 µV µV/°C nA nA dB MΩ kΩ pF V dB ns V mA mA pF V µA dB dB ADA4805-2-EP Enhanced Product 5 V SUPPLY VS = 5 V at TA = 25°C; RF = 0 Ω for G = +1; otherwise, RF = 1 kΩ; RL = 2 kΩ to midsupply; unless otherwise noted. All specifications are per amplifier. Table 3. Parameter DYNAMIC PERFORMANCE −3 dB Bandwidth Bandwidth for 0.1 dB Flatness Slew Rate Settling Time to 0.1% NOISE/DISTORTION PERFORMANCE Harmonic Distortion, HD2/HD31 Input Voltage Noise Input Voltage Noise 1/f Corner 0.1 Hz to 10 Hz Voltage Noise Input Current Noise DC PERFORMANCE Input Offset Voltage Input Offset Voltage Drift2 Input Bias Current Input Offset Current Open-Loop Gain INPUT CHARACTERISTICS Input Resistance Common Mode Differential Mode Input Capacitance Input Common-Mode Voltage Range Common-Mode Rejection Ratio OUTPUT CHARACTERISTICS Overdrive Recovery Time (Rising/Falling Edge) Output Voltage Swing Short-Circuit Current Linear Output Current Capacitive Load Drive POWER SUPPLY Operating Range Quiescent Current per Amplifier Power Supply Rejection Ratio Positive Negative 1 2 Test Conditions/Comments Min Typ Max Unit G = +1, VOUT = 0.02 V p-p G = +1, VOUT = 2 V p-p G = +1, VOUT = 0.02 V p-p G = +1, VOUT = 2 V step G = +2, VOUT = 4 V step G = +1, VOUT = 2 V step G = +2, VOUT = 4 V step 105 35 20 160 220 35 82 MHz MHz MHz V/µs V/µs ns ns fC = 20 kHz, VOUT = 2 V p-p fC = 100 kHz, VOUT = 2 V p-p fC = 20 kHz, G = +2, VOUT = 4 V p-p fC = 100 kHz, G = +2, VOUT = 4 V p-p f = 100 kHz −114/−135 −102/−126 −107/−143 −90/−130 5.9 8 54 0.6 dBc dBc dBc dBc nV/√Hz Hz nV rms pA/√Hz f = 100 kHz TMIN to TMAX VOUT = 1.25 V to 3.75 V 105 9 0.4 470 0.4 109 125 2.7 720 50 260 1 VIN, CM = 1.25 V to 3.75 V −0.1 103 VIN = −1 V to +6 V, G = +2 RL = 2 kΩ Sinking/sourcing <1% THD at 100 kHz, VOUT = 2 V p-p 30% overshoot 133 MΩ kΩ pF V dB 130/145 ns +4 0.02 500 fC is the fundamental frequency. Guaranteed, but not tested. Rev. 0 | Page 4 of 9 4.98 V mA mA pF 10 520 V µA 73/63 ±47 15 2.7 +VS = 1.5 V to 3.5 V, −VS = −2.5 V +VS = 2.5 V, −VS = −1.5 V to −3.5 V 100 100 µV µV/°C nA nA dB 120 126 dB dB Enhanced Product ADA4805-2-EP 3 V SUPPLY VS = 3 V at TA = 25°C; RF = 0 Ω for G = +1; otherwise, RF = 1 kΩ; RL = 2 kΩ to midsupply; unless otherwise noted. All specifications are per amplifier. Table 4. Parameter DYNAMIC PERFORMANCE −3 dB Bandwidth Bandwidth for 0.1 dB Flatness Slew Rate Settling Time to 0.1% NOISE/DISTORTION PERFORMANCE Harmonic Distortion, HD2/HD31 Input Voltage Noise Input Voltage Noise 1/f Corner 0.1 Hz to 10 Hz Voltage Noise Input Current Noise DC PERFORMANCE Input Offset Voltage Input Offset Voltage Drift2 Input Bias Current Input Offset Current Open-Loop Gain INPUT CHARACTERISTICS Input Resistance Common Mode Differential Mode Input Capacitance Input Common-Mode Voltage Range Common-Mode Rejection Ratio OUTPUT CHARACTERISTICS Output Overdrive Recovery Time (Rising/Falling Edge) Output Voltage Swing Short-Circuit Current Linear Output Current Capacitive Load Drive POWER SUPPLY Operating Range Quiescent Current per Amplifier Power Supply Rejection Ratio Positive Negative 1 2 Test Conditions/Comments Min Typ Max Unit G = +1, VOUT = 0.02 V p-p G = +1, VOUT = 1 V p-p, +VS = 2 V, −VS = −1 V G = +1, VOUT = 0.02 V p-p G = +1, VOUT = 1 V step, +VS = 2 V, −VS = −1 V G = +1, VOUT = 1 V step 95 30 35 85 41 MHz MHz MHz V/µs ns fC = 20 kHz, VOUT = 1 V p-p, +VS = 2 V, −VS = −1 V fC = 100 kHz, VOUT = 1 V p-p, +VS = 2 V, −VS = −1 V f = 100 kHz −123/−143 −107/−133 6.3 8 55 0.8 dBc dBc nV/√Hz Hz nV rms pA/√Hz f = 100 kHz TMIN to TMAX VOUT = 1.1 V to 1.9 V 100 7 0.4 440 0.5 107 125 2.7 690 50 260 1 VIN, CM = 0.5 V to 2 V −0.1 89 VIN = −1 V to +4 V, G = +2 RL = 2 kΩ Sinking/sourcing <1% THD at 100 kHz, VOUT = 1 V p-p 30% overshoot 117 MΩ kΩ pF V dB 135/175 ns +2 0.02 470 fC is the fundamental frequency. Guaranteed, but not tested. Rev. 0 | Page 5 of 9 2.98 V mA mA pF 10 495 V µA 65/47 ±40 15 2.7 +VS = 1.5 V to 3.5 V, −VS = −1.5 V +VS = 1.5 V, −VS = −1.5 V to −3.5 V 96 96 µV µV/°C nA nA dB 119 125 dB dB ADA4805-2-EP Enhanced Product ABSOLUTE MAXIMUM RATINGS Table 5. Parameter Supply Voltage Power Dissipation Common-Mode Input Voltage Differential Input Voltage Storage Temperature Range Operating Temperature Range Lead Temperature (Soldering, 10 sec) Junction Temperature Rating 11 V See Figure 3 −VS − 0.7 V to +VS + 0.7 V ±1 V −65°C to +125°C −55°C to +125°C 300°C 150°C Stresses at or above those listed under Absolute Maximum Ratings may cause permanent damage to the product. This is a stress rating only; functional operation of the product at these or any other conditions above those indicated in the operational section of this specification is not implied. Operation beyond the maximum operating conditions for extended periods may affect product reliability. THERMAL RESISTANCE θJA is specified for the worst case conditions, that is, θJA is specified for a device soldered in a circuit board for surface-mount packages. Table 6 lists the θJA for the ADA4805-2-EP. The quiescent power dissipation is the voltage between the supply pins (VS) multiplied by the quiescent current (IS). PD = Quiescent Power + (Total Drive Power − Load Power) V V PD = (VS × I S ) + S × OUT RL 2 RMS output voltages must be considered. If RL is referenced to −VS, as in single-supply operation, the total drive power is VS × IOUT. If the rms signal levels are indeterminate, consider the worst case, when VOUT = VS/4 for RL to midsupply. PD = (VS × I S ) + (VS / 4)2 RL In single-supply operation with RL referenced to −VS, worst case is VOUT = VS/2. Airflow increases heat dissipation, effectively reducing θJA. Also, more metal directly in contact with the package leads and exposed pad from metal traces, through holes, ground, and power planes reduces θJA. Figure 3 shows the maximum safe power dissipation in the package vs. the ambient temperature on a JEDEC standard, 4-layer board. θJA values are approximations. Table 6. Thermal Resistance 2.0 TJ = 150°C Unit °C/W MAXIMUM POWER DISSIPATION The maximum safe power dissipation for the ADA4805-2-EP is limited by the associated rise in junction temperature (TJ) on the die. At approximately 150°C, which is the glass transition temperature, the properties of the plastic change. Even temporarily exceeding this temperature limit may change the stresses that the package exerts on the die, permanently shifting the parametric performance of the ADA4805-2-EP. Exceeding a junction temperature of 175°C for an extended period of time can result in changes in silicon devices, potentially causing degradation or loss of functionality. The power dissipated in the package (PD) is the sum of the quiescent power dissipation and the power dissipated in the die due to the ADA4805-2-EP output load drive. 1.6 8-LEAD MSOP 1.2 0.8 0.4 0 –55 –35 –15 5 25 45 65 85 AMBIENT TEMPERATURE (°C) 105 125 13741-011 θJA 123.8 MAXIMUM POWER DISSIPATION (W) Package Type 8-Lead MSOP V 2 − OUT RL Figure 3. Maximum Power Dissipation vs. Temperature for a 4-Layer Board ESD CAUTION Rev. 0 | Page 6 of 9 Enhanced Product ADA4805-2-EP PIN CONFIGURATION AND FUNCTION DESCRIPTIONS 8 +VS –IN1 2 7 VOUT2 +IN1 3 6 –IN2 –VS 4 5 +IN2 13741-004 ADA4805-2-EP VOUT1 1 Figure 4. 8-Lead MSOP Pin Configuration Table 7. Pin Function Descriptions Pin No. 1 2 3 4 5 6 7 8 Mnemonic VOUT1 −IN1 +IN1 −VS +IN2 −IN2 VOUT2 +VS Description Output 1. Inverting Input 1. Noninverting Input 1. Negative Supply. Noninverting Input 2. Inverting Input 2. Output 2. Positive Supply. Rev. 0 | Page 7 of 9 ADA4805-2-EP Enhanced Product TYPICAL PERFORMANCE CHARACTERISTICS RL = 2 kΩ, unless otherwise noted. When G = +1, RF = 0 Ω. 3 3 –55°C +25°C +125°C CLOSED-LOOP GAIN (dB) +25°C –3 +125°C –6 100 1000 –9 0.1 750 INPUT BIAS CURRENT (nA) 700 VS = ±5V 600 550 VS = ±1.5V VS = ±2.5V 700 VS = ±5V 650 VS = ±2.5V 600 550 500 400 450 350 400 300 –55 –40 –25 –10 20 5 35 65 50 80 110 125 95 TEMPERATURE (°C) VS = ±1.5V 350 –55 –40 –25 –10 13741-256 QUIESCENT SUPPLY CURRENT (µA) 800 750 450 100 Figure 8. Large Signal Frequency Response for Various Temperatures 800 500 10 FREQUENCY (MHz) Figure 5. Small Signal Frequency Response for Various Temperatures 650 1 13741-016 10 1 FREQUENCY (MHz) 5 20 35 50 65 80 95 110 125 TEMPERATURE (°C) Figure 9. Input Bias Current vs. Temperature for Various Supplies Figure 6. Quiescent Supply Current vs. Temperature for Various Supplies 150 30 VS = ±2.5V VS = ±2.5V TA = –55°C TO +125°C x = 0.43V/° σ = 0.32V/°C 100 INPUT OFFSET VOLTAGE (µV) 25 20 15 10 50 0 –50 1.6 13741-323 INPUT OFFSET VOLTAGE DRIFT (µV/°C) 1.4 1.2 1.0 0.8 0.6 0.4 0 0.2 –0.2 –0.4 –0.6 –0.8 –150 –55 –40 –25 –10 –1.0 0 –1.2 –100 –1.4 5 –1.6 PERCENTAGE OF UNITS (%) –6 13741-257 –12 0.1 –55°C –3 VS = ±2.5V G = +1 VOUT = 2V p-p RL = 2kΩ VS = ±2.5V G = +1 VOUT = 20mV p-p RL = 2kΩ 13741-208 –9 0 5 20 35 50 65 80 95 TEMPERATURE (°C) Figure 7. Input Offset Voltage Drift Distribution Figure 10. Input Offset Voltage vs. Temperature Rev. 0 | Page 8 of 9 110 125 13741-013 CLOSED-LOOP GAIN (dB) 0 Enhanced Product ADA4805-2-EP OUTLINE DIMENSIONS 3.20 3.00 2.80 8 3.20 3.00 2.80 1 5 5.15 4.90 4.65 4 PIN 1 IDENTIFIER 0.65 BSC 0.95 0.85 0.75 15° MAX 1.10 MAX 0.40 0.25 6° 0° 0.23 0.09 0.80 0.55 0.40 COMPLIANT TO JEDEC STANDARDS MO-187-AA 10-07-2009-B 0.15 0.05 COPLANARITY 0.10 Figure 11. 8-Lead Mini Small Outline Package [MSOP] (RM-8) Dimensions shown in millimeters ORDERING GUIDE Model1 ADA4805-2TRMZ-EP ADA4805-2TRMZ-EPR7 1 Temperature Range −55°C to +125°C −55°C to +125°C Package Description 8-Lead Mini Small Outline Package [MSOP] 8-Lead Mini Small Outline Package [MSOP] Z = RoHS Compliant Part. ©2016 Analog Devices, Inc. All rights reserved. Trademarks and registered trademarks are the property of their respective owners. D13741-0-4/16(0) Rev. 0 | Page 9 of 9 Package Option RM-8 RM-8 Branding Y5W Y5W