900,000+ datasheet pdf search and download

Datasheet4U offers most rated semiconductors data sheet pdf




Analog Devices Semiconductor Electronic Components Datasheet

AD7699 Datasheet

500 kSPS PulSAR ADC

No Preview Available !

Data Sheet
FEATURES
16-bit resolution with no missing codes
8-channel multiplexer with choice of inputs
Unipolar single-ended
Differential (GND sense)
Pseudobipolar
Throughput: 500 kSPS
INL: ±0.5 LSB typical, ±1.5 LSB maximum (±23 ppm or FSR)
Dynamic range: 93.3 dB
SINAD: 91.5 dB at 20 kHz
THD: −97 dB at 20 kHz
Analog input range: 0 V to VREF with VREF up to VDD
Multiple reference types
Internal 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 5 V operation with
1.8 V to 5 V logic interface
Serial interface compatible with SPI, MICROWIRE,
QSPI, and DSP
Power dissipation
26 mW at 500 kSPS
5.2 μW at 100 SPS
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
16-Bit, 8-Channel,
500 kSPS PulSAR ADC
AD7699
FUNCTIONAL BLOCK DIAGRAM
0.5V TO 4.096V
0.1µF
0.5V TO VDD
10µF
5V
REFIN REF VDD
BAND GAP
REF
IN0
IN1
IN2
IN3
IN4
IN5
IN6
IN7
COM
TEMP
SENSOR
AD7699
MUX
16-BIT SAR SPI SERIAL
ADC
INTERFACE
ONE-POLE
LPF
SEQUENCER
GND
1.8V
VIO TO
VDD
CNV
SCK
SDO
DIN
Figure 1.
Table 1. Multichannel 14-/16-Bit PulSAR® ADC
Type
Channels 250 kSPS 500 kSPS ADC Driver
14-Bit 8
AD7949
ADA4841-1
16-Bit 4
AD7682
ADA4841-1
16-Bit 8
AD7689 AD7699 ADA4841-1
GENERAL DESCRIPTION
The AD7699 is an 8-channel, 16-bit, charge redistribution
successive approximation register (SAR) analog-to-digital
converter (ADC) that operates from a single power supply, VDD.
The AD7699 contains all components for use in a multichannel,
low power data acquisition system, including a true 16-bit SAR
ADC with no missing codes; an 8-channel low crosstalk multip-
lexer useful for configuring the inputs as single-ended (with or
without ground sense), differential, or bipolar; an internal 4.096 V
low drift reference and buffer; a temperature sensor; a selectable
one-pole filter; and a sequencer that is useful when channels are
continuously scanned in order.
The AD7699 uses a simple serial port interface (SPI) 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 AD7699 is housed in a tiny 20-lead LFCSP with operation
specified from −40°C to +85°C.
Rev. E
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.
Trademarksandregisteredtrademarksarethepropertyoftheirrespectiveowners.
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.
Tel: 781.329.4700 ©2008–2015 Analog Devices, Inc. All rights reserved.
Technical Support
www.analog.com


Analog Devices Semiconductor Electronic Components Datasheet

AD7699 Datasheet

500 kSPS PulSAR ADC

No Preview Available !

AD7699
TABLE OF CONTENTS
Features .............................................................................................. 1
Applications....................................................................................... 1
Functional Block Diagram .............................................................. 1
General Description ......................................................................... 1
Revision History ............................................................................... 2
Specifications..................................................................................... 3
Timing Specifications....................................................................... 5
Absolute Maximum Ratings............................................................ 6
ESD Caution.................................................................................. 6
Pin Configuration and Function Descriptions............................. 7
Typical Performance Characteristics ............................................. 8
Terminology .................................................................................... 12
Theory of Operation ...................................................................... 13
Overview...................................................................................... 13
Converter Operation.................................................................. 13
Transfer Functions...................................................................... 14
Typical Connection Diagrams.................................................. 15
Analog Inputs.............................................................................. 16
Driver Amplifier Choice............................................................ 18
REVISION HISTORY
9/15—Rev. D to Rev. E
Changed ADSP-BF53x to ADSP-BF531/ADSP-BF532/ADSP-
BF533/ADSP-BF535/ADSP-BF536/ADSP-BF537/ADSP-
BF538/ADSP-BF539; Changed ADSP-219x to ADSP-2191M/
ADSP-2196M, and Changed ADSP-218x to ADSP-2181/ADSP-
2183/ADSP-2185/ADSP-2186/ADSP-2189N ............ Throughout
Moved General Timing with a Busy Indicator Section and
Figure 36 .......................................................................................... 24
Added Channel Sequencer Section, Examples Section, and
Figure 41; Renumbered Sequentially ........................................... 27
5/15—Rev. C to Rev. D
Changed ADA4841-x to ADA4841-1, ADR43x to ADR430/
ADR431/ADR433/ADR434/ADR435, and AD44x to ADR440/
ADR441/ADR443/ADR444/ADR445 ........................ Throughout
Updated Outline Dimensions ....................................................... 27
Changes to Ordering Guide .......................................................... 27
5/14—Rev. B to Rev. C
Changes to Table 3............................................................................ 5
Changes to Ordering Guide .......................................................... 27
Data Sheet
Voltage Reference Output/Input .............................................. 18
Power Supply............................................................................... 19
Supplying the ADC from the Reference.................................. 20
Digital Interface .............................................................................. 21
Reading/Writing During Conversion, Fast Hosts.................. 21
Reading/Writing During Acquisition, Any Speed Hosts...... 21
Reading/Writing Spanning Conversion, Any Speed Host.... 21
Configuration Register, CFG .................................................... 21
General Timing Without a Busy Indicator ............................. 23
General Timing With a Busy Indicator ................................... 24
Read/Write Spanning Conversion Without a Busy
Indicator ...................................................................................... 25
Read/Write Spanning Conversion with a Busy Indicator..... 26
Channel Sequencer .................................................................... 27
Application Hints ........................................................................... 28
Layout .......................................................................................... 28
Evaluating AD7699 Performance............................................. 28
Outline Dimensions ....................................................................... 29
Ordering Guide .......................................................................... 29
3/12—Rev. A to Rev. B
Changes to Figure 28...................................................................... 15
Changes to Internal Reference/Temperature Sensor and
External Reference and Internal Buffer Sections ....................... 18
Changes to Bits[5:3] Function, Table 8........................................ 21
Updated Outline Dimensions....................................................... 27
9/11—Rev. 0 to Rev. A
Changed Internal Reference/Temperature Sensor Section to
Internal Reference Section ............................................................ 18
Changes to Internal Reference Section, External Reference
Section and Internal Buffer Section, and External Reference
Section.............................................................................................. 18
Changes to Table 8.......................................................................... 21
10/08—Revision 0: Initial Version
Rev. E | Page 2 of 29


Part Number AD7699
Description 500 kSPS PulSAR ADC
Maker Analog Devices
PDF Download

AD7699 Datasheet PDF






Similar Datasheet

1 AD7690 Differential ADC
Analog Devices
2 AD7691 250 kSPS PulSAR Differential ADC
Analog Devices
3 AD7693 500 kSPS PulSAR Differential ADC
Analog Devices
4 AD7694 250 kSPS PulSAR ADC
Analog Devices
5 AD7699 500 kSPS PulSAR ADC
Analog Devices





Part Number Start With

0    1    2    3    4    5    6    7    8    9    A    B    C    D    E    F    G    H    I    J    K    L    M    N    O    P    Q    R    S    T    U    V    W    X    Y    Z



Site map

Webmaste! click here

Contact us

Buy Components

Privacy Policy