16-Bit, 100 kSPS, Single-Ended PulSAR ADC in MSOP/QFN Data Sheet AD7683 FEATURES APPLICATION DIAGRAM 0.5V TO VDD 2.7V TO 5.5V 16-bit resolution with no missing codes Throughput: 100 kSPS INL: 1 LSB typical, 3 LSB maximum REF VDD 0V TO V REF Pseudo differential analog input range +IN DCLOCK 0 V to V with V up to VDD 3-WIRE SPI REF REF AD7683 D IN OUT INTERFACE Single-supply operation: 2.7 V to 5.5 V CS GND Serial interface SPI/QSPI/MICROWIRE/DSP compatible Power dissipation: 4 mW 5 V, 1.5 mW 2.7 V, Figure 1. 150 W 2.7 V/10 kSPS Standby current: 1 nA 8-lead packages: Table 1. MSOP, QFN (LFCSP)/SOT-23, 14-/16-/18-Bit MSOP PulSAR ADC 3 mm 3 mm QFN (LFCSP) (SOT-23 size) 400 kSPS Improved second source to ADS8320 and ADS8325 100 250 to 1000 ADC Type kSPS kSPS 500 kSPS kSPS Driver 18-Bit True AD7691 AD7690 AD7982 ADA4941-1 APPLICATIONS Differential AD7984 ADA4841-1 Battery-powered equipment 16-Bit True AD7684 AD7687 AD7688 ADA4941-1 Differential AD7693 ADA4841-1 Data acquisition 16-Bit AD7680 AD7685 AD7686 AD7980 ADA4841-1 Instrumentation Pseudo AD7683 AD7694 Medical instruments Differential Process control 14-Bit AD7940 AD7942 AD7946 ADA4841-1 Pseudo Differential GENERAL DESCRIPTION The AD7683 is a 16-bit, charge redistribution, successive analog input, +IN, between 0 V to REF with respect to a ground approximation, PulSAR analog-to-digital converter (ADC) sense, IN. The reference voltage, REF, is applied externally and that operates from a single power supply, VDD, between 2.7 V can be set up to the supply voltage. Its power scales linearly with and 5.5 V. It contains a low power, high speed, 16-bit sampling throughput. ADC with no missing codes (B grade), an internal conversion The AD7683 is housed in an 8-lead MSOP or an 8-lead QFN clock, and a serial, SPI-compatible interface port. The part also (LFCSP) package, with an operating temperature specified from contains a low noise, wide bandwidth, short aperture delay, 40C to +85C. CS track-and-hold circuit. On the falling edge, it samples an Rev. B 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 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 20042016 Analog Devices, Inc. All rights reserved. license is granted by implication or otherwise under any patent or patent rights of Analog Devices. Technical Support www.analog.com Trademarks and registered trademarks are the property of their respective owners. 04301-001AD7683 Data Sheet TABLE OF CONTENTS Features .............................................................................................. 1 Circuit Information .................................................................... 12 Applications ....................................................................................... 1 Converter Operation .................................................................. 12 Application Diagram ........................................................................ 1 Transfer Functions ..................................................................... 12 General Description ......................................................................... 1 Typical Connection Diagram ................................................... 13 Revision History ............................................................................... 2 Analog Input ............................................................................... 13 Specif icat ions ..................................................................................... 3 Driver Amplifier Choice ........................................................... 13 Timing Specifications .................................................................. 5 Voltage Reference Input ............................................................ 14 Absolute Maximum Ratings ............................................................ 6 Power Supply ............................................................................... 14 Thermal Resistance ...................................................................... 6 Digital Interface .......................................................................... 14 ESD Caution .................................................................................. 6 Layout .......................................................................................... 14 Pin Configurations and Function Descriptions ........................... 7 Evaluating the AD7683 Performance ...................................... 14 Terminology ...................................................................................... 8 Outline Dimensions ....................................................................... 15 Typical Performance Characteristics ............................................. 9 Ordering Guide .......................................................................... 16 Applications Information .............................................................. 12 REVISION HISTORY 2/16Rev. A to Rev. B Changes to Table 1 ............................................................................ 1 Added Figure 7 and Table 9 Renumbered Sequentially ............. 7 Changes to Table 10 ........................................................................ 13 Changes to Digital Interface Section ............................................ 14 Updated Outline Dimensions ....................................................... 16 Changes to Ordering Guide .......................................................... 16 2/08Rev. 0 to Rev. A Change to Title .................................................................................. 1 Moved Figure 3, Figure 4, and Figure 5 ......................................... 5 Changes to Figure 4 .......................................................................... 5 Moved Figure 17 and Figure 18 .................................................... 11 Changes to Figure 22 ...................................................................... 13 Updated Outline Dimensions ....................................................... 15 Changes to Ordering Guide .......................................................... 16 9/04Initial Version: Revision 0 Rev. B Page 2 of 16