ADA4805-2TRMZ-EPR7

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