Electronic Components Datasheet Search |
|
AD7699 Datasheet(PDF) 1 Page - Analog Devices |
|
AD7699 Datasheet(HTML) 1 Page - Analog Devices |
1 / 28 page 14-Bit, 8-Channel, 250 kSPS PulSAR ADC AD7949 Rev. A Information furnished by Analog Devices is believed to be accurate and reliable. However, no responsibilityis assumedbyAnalogDevicesforitsuse,norforanyinfringements of patents or other rightsofthirdpartiesthatmayresultfromitsuse.Specificationssubjecttochangewithoutnotice.No license is granted by implication or otherwise under any patent or patent rights of Analog Devices. Trademarksandregisteredtrademarksarethepropertyoftheirrespectiveowners. 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 ©2008 Analog Devices, Inc. All rights reserved. FEATURES 14-bit resolution with no missing codes 8-channel multiplexer with choice of inputs Unipolar single ended Differential (GND sense) Pseudobipolar Throughput: 250 kSPS INL/DNL: ±0.5 LSB typical SINAD: 85 dB @ 20 kHz THD: 100 dB @ 20 kHz Analog input range: 0 V to VREF with VREF up to VDD Multiple reference types Internal selectable 2.5 V or 4.096 V External buffered (up to 4.096 V) External (up to VDD) Internal temperature sensor Channel sequencer, selectable 1-pole filter, busy indicator No pipeline delay, SAR architecture Single-supply 2.7 V to 5.5 V operation with 1.8 V to 5 V logic interface Serial interface compatible with SPI, MICROWIRE, QSPI, and DSP Power dissipation 2.9 mW @ 2.5 V/200 kSPS 10.8 mW @ 5 V/250 kSPS Standby current: 50 nA 20-lead 4 mm × 4 mm LFCSP package APPLICATIONS Battery-powered equipment Medical instruments: ECG/EKG Mobile communications: GPS Personal digital assistants Power line monitoring Data acquisition Seismic data acquisition systems Instrumentation Process control FUNCTIONAL BLOCK DIAGRAM AD7949 REF GND VDD VIO DIN SCK SDO CNV 1.8V TO VDD 2.7V TO 5V SEQUENCER SPI SERIAL INTERFACE MUX 16-BIT SAR ADC BAND GAP REF TEMP SENSOR REFIN IN0 IN1 IN4 IN5 IN6 IN7 IN3 IN2 COM 0.5V TO VDD 22µF 0.5V TO 4.096V 0.1µF ONE-POLE LPF Figure 1. Table 1. Multichannel 14-/16-Bit PulSAR® ADC Type Channels 250 kSPS 500 kSPS ADC Driver 14-Bit 8 AD7949 ADA4841-x 16-Bit 4 AD7682 ADA4841-x 16-Bit 8 AD7689 AD7699 ADA4841-x GENERAL DESCRIPTION The AD7949 is an 8-channel, 14-bit, charge redistribution successive approximation register (SAR) analog-to-digital converter (ADC) that operates from a single power supply, VDD. The AD7949 contains all components for use in a multichannel, low power data acquisition system, including a true 14-bit SAR ADC with no missing codes; an 8-channel, low crosstalk multi- plexer useful for configuring the inputs as single ended (with or without ground sense), differential, or bipolar; an internal low drift reference (selectable 2.5 V or 4.096 V) and buffer; a temperature sensor; a selectable one-pole filter; and a sequencer that is useful when channels are continuously scanned in order. The AD7949 uses a simple SPI interface for writing to the configuration register and receiving conversion results. The SPI interface uses a separate supply, VIO, which is set to the host logic level. Power dissipation scales with throughput. The AD7949 is housed in a tiny 20-lead LFCSP with operation specified from −40°C to +85°C. |
Similar Part No. - AD7699 |
|
Similar Description - AD7699 |
|
|
Link URL |
Privacy Policy |
ALLDATASHEET.COM |
Does ALLDATASHEET help your business so far? [ DONATE ] |
About Alldatasheet | Advertisement | Datasheet Upload | Contact us | Privacy Policy | Link Exchange | Manufacturer List All Rights Reserved©Alldatasheet.com |
Russian : Alldatasheetru.com | Korean : Alldatasheet.co.kr | Spanish : Alldatasheet.es | French : Alldatasheet.fr | Italian : Alldatasheetit.com Portuguese : Alldatasheetpt.com | Polish : Alldatasheet.pl | Vietnamese : Alldatasheet.vn Indian : Alldatasheet.in | Mexican : Alldatasheet.com.mx | British : Alldatasheet.co.uk | New Zealand : Alldatasheet.co.nz |
Family Site : ic2ic.com |
icmetro.com |