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AD977A Datasheet دیتاشیت PDF دانلود

دیتاشیت - Analog Devices - 16-Bit/ 100 kSPS/200 kSPS BiCMOS A/D Converter

شماره قطعه AD977A
شرح مفصل 16-Bit/ 100 kSPS/200 kSPS BiCMOS A/D Converter
تولید کننده Analog Devices 
آرم Analog Devices 


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AD977A شرح
a
FEATURES
Fast 16-Bit ADC
100 kSPS Throughput Rate—AD977
200 kSPS Throughput Rate—AD977A
Single 5 V Supply Operation
Power Dissipation 100 mW Max
Power-Down Mode 50 W
Input Ranges:
Unipolar; 0 V–10 V, 0 V–5 V and 0 V–4 V
Bipolar; ؎10 V, ؎5 V and ؎3.3 V
Choice of External or Internal 2.5 V Reference
High Speed Serial Interface
On-Chip Clock
20-Lead Skinny DIP or SOIC Package
28-Lead Skinny SSOP Package
16-Bit, 100 kSPS/200 kSPS
BiCMOS A/D Converter
AD977/AD977A
FUNCTIONAL BLOCK DIAGRAM
REF
VANA AGND1
CAP
R1IN
R2IN
R3IN
4R
2R
R
4k
2.5V
REFERENCE
AD977/
AD977A
SERIAL
4R
SWITCHED
DATA
CAP ADC
INTERFACE
AGND2
VDIG
R = 5kAD977
R = 2.5kAD977A
CONTROL LOGIC &
INTERNAL CALIBRATION CIRCUITRY
CLOCK
SYNC
BUSY
DATACLK
DATA
DGND PWRD R/C CS TAG SB/BTC EXT/INT
GENERAL DESCRIPTION
The AD977/AD977A is a high speed, low power 16-bit A/D
converter that operates from a single 5 V supply. The AD977A
has a throughput rate of 200 kSPS whereas the AD977 has a
throughput rate of 100 kSPS. Each part contains a successive
approximation, switched capacitor ADC, an internal 2.5 V
reference, and a high speed serial interface. The ADC is factory
calibrated to minimize all linearity errors. The AD977/AD977A is
specified for full scale bipolar input ranges of ± 10 V, ± 5 V and
±3.3 V, and unipolar ranges of 0 V to 10 V, 0 V to 5 V and
0 V to 4 V.
The AD977/AD977A is comprehensively tested for ac param-
eters such as SNR and THD, as well as the more traditional dc
parameters of offset, gain and linearity.
PRODUCT HIGHLIGHTS
1. Fast Throughput
The AD977/AD977A is a high speed, 16-bit ADC based on
a factory calibrated switched capacitor architecture.
2. Single-Supply Operation
The AD977/AD977A operates from a single 5 V supply and
dissipates only 100 mW max.
3. Comprehensive DC and AC Specifications
In addition to the traditional specifications of offset, gain
and linearity, the AD977/AD977A is fully tested for SNR
and THD.
REV. D
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
which may result from its use. No license is granted by implication or
otherwise under any patent or patent rights of Analog Devices.
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.
Tel: 781/329-4700 World Wide Web Site: http://www.analog.com
Fax: 781/326-8703
© Analog Devices, Inc., 2000

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