AD5590BBCZ Analog Devices

16 Input, 16 Output Analog I/O Port with Integrated Amplifiers AD5590 FEATURES Low input bias current: 1 pA maximum Single supply operation Input channels Low noise: 22 nV/Hz 12-bit successive approximation ADC Unity gain stable 16 inputs with sequencer Flexible serial interface Fast throughput rate: 1 MSPS SPI-/QSPI-/MICROWIRE-/DSP-compatible Wide input bandwidth: 70 dB SNR at f = 50 kHz IN 40C to +85C operation Output channels Available in 80-ball CSP BGA package 16 outputs with 12-bit DACs On-chip 2.5 V reference APPLICATIONS Hardware LDAC and LDAC override function Optical line cards CLR function to programmable code Base stations Rail-to-rail operation General-purpose analog I/O Operational amplifiers Monitoring and control Offset voltage: 2.2 mV maximum FUNCTIONAL BLOCK DIAGRAM ADCV DACV (2) V1+ V2+ V1 V2 V /V REFIN1 REFOUT1 DD DD POWER-ON POWER-DOWN RESET LOGIC LDAC 2.5V REF BUFFER INPUT DAC STRING VOUT0 DSCLK REGISTER REGISTER DAC 0 DSYNC1 BUFFER DSYNC2 INPUT DAC STRING VOUT7 REGISTER REGISTER DAC 7 DDIN DAC LDAC INTERFACE LOGIC BUFFER CLR INPUT DAC STRING VOUT8 REGISTER REGISTER DAC 8 BUFFER DAC INPUT STRING VOUT15 REGISTER REGISTER DAC 15 POWER-DOWN LOGIC V 2.5V REF V /V DRIVE REFIN2 REFOUT2 VIN0 ASCLK SEQUENCER ADC ASYNC INTERFACE 12-BIT LOGIC INPUT SUCCESSIVE ADIN T/H MUX APPROXIMATION ADOUT ADC VIN15 AD5590 V REFA IN0() IN7() IN7(+) OUT7 IN0(+) OUT0 DACGND (2) ADCGND Figure 1. Rev. A 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 One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A. rights of third parties that may result from its use. Specifications subject to change without notice. No Tel: 781.329.4700 www.analog.com 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. Fax: 781.461.3113 20082011 Analog Devices, Inc. All rights reserved. 07691-001AD5590 TABLE OF CONTENTS Features .............................................................................................. 1 DAC .............................................................................................. 14 Applications ....................................................................................... 1 ADC ............................................................................................. 18 Functional Block Diagram .............................................................. 1 Amplifier ..................................................................................... 19 Revision History ............................................................................... 2 Terminology .................................................................................... 23 General Description ......................................................................... 3 Theory of Operation ...................................................................... 26 Specifications ..................................................................................... 4 DAC Section................................................................................ 26 ADC Specifications ...................................................................... 4 ADC Section ............................................................................... 27 DAC Specifications....................................................................... 6 ADC Converter Operation ....................................................... 27 Operational Amplifier Specifications ........................................ 8 Amplifier Section ....................................................................... 29 Timing Specifications .................................................................. 9 Serial Interface ................................................................................ 30 Absolute Maximum Ratings .......................................................... 11 Accessing the DAC Block .......................................................... 30 Thermal Resistance .................................................................... 11 Accessing the ADC Block ......................................................... 34 ESD Caution ................................................................................ 11 Outline Dimensions ....................................................................... 42 Pin Configuration and Function Descriptions ........................... 12 Ordering Guide .......................................................................... 42 Typical Performance Characteristics ........................................... 14 REVISION HISTORY 7/11Rev. 0 to Rev. A Changes to Features Section and Figure 1..................................... 1 Changes to VOUT10 Pin Number in Table 10 ........................... 13 10/08Revision 0: Initial Version Rev. A Page 2 of 44