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參數資料
| 型號： | AD7853AR |
| 廠商： | ANALOG DEVICES INC |
| 元件分類： | ADC |
| 英文描述： | 3 V to 5 V Single Supply, 200 kSPS 12-Bit Sampling ADCs |
| 中文描述： | 1-CH 12-BIT SUCCESSIVE APPROXIMATION ADC, SERIAL ACCESS, PDSO24 |
| 封裝： | SOIC-24 |
| 文件頁數： | 1/34頁 |
| 文件大小： | 350K |
| 代理商： | AD7853AR |
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FUNCTIONAL BLOCK DIAGRAM
2.5V
REFERENCE
CALIBRATION
MEMORY
AND CONTROLLER
SAR + ADC
CONTROL
AV
DD
AGND
DV
DD
DGND
CLKIN
CONVST
BUSY
SLEEP
CAL
C
REF2
C
REF1
REF
IN
/
REF
OUT
AIN(–)
AIN(+)
AMODE
SM1
SCLK
SYNC
POLARITY
DOUT
DIN
SM2
AGND
BUF
T/H
COMP
CHARGE
REDISTRIBUTION
DAC
SERIAL INTERFACE / CONTROL REGISTER
AD7853/AD7853L
REV. B
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.
a
3 V to 5 V Single Supply, 200 kSPS
12-Bit Sampling ADCs
AD7853/AD7853L*
FEATURES
Specified for V
DD
of 3 V to 5.5 V
Read-Only Operation
AD7853–200 kSPS; AD7853L–100 kSPS
System and Self-Calibration with Autocalibration on
Power-Up
Low Power:
AD7853: 12 mW (V
DD
= 3 V)
AD7853L: 4.5 mW (V
DD
= 3 V)
Automatic Power Down After Conversion (25
m
W)
Flexible Serial Interface:
8051/SPI/QSPI/
m
P Compatible
24-Lead DIP, SOIC and SSOP Packages
APPLICATIONS
Battery-Powered Systems (Personal Digital Assistants,
Medical Instruments, Mobile Communications)
Pen Computers
Instrumentation and Control Systems
High Speed Modems
GENERAL DESCRIPTION
The AD7853/AD7853L are high speed, low power, 12-bit
ADCs that operate from a single 3 V or 5 V power supply, the
AD7853 being optimized for speed and the AD7853L for low
power. The ADC powers up with a set of default conditions at
which time it can be operated as a read-only ADC. The ADC
contains self-calibration and system-calibration options to en-
sure accurate operation over time and temperature and have a
number of power-down options for low power applications.
The part powers up with a set of default conditions and can
operate as a read only ADC.
The AD7853 is capable of 200 kHz throughput rate while the
AD7853L is capable of 100 kHz throughput rate. The input
track-and-hold acquires a signal in 500 ns and features a pseudo-
differential sampling scheme. The AD7853/AD7853L voltage
range is 0 to V
REF
with both straight binary and twos comple-
ment output coding. Input signal range is to the supply, and the
part is capable of converting full power signals to 100 kHz.
CMOS construction ensures low power dissipation of typically
4.5 mW for normal operation and 1.15 mW in power-down
mode, with a throughput rate of 10 kSPS (V
DD
= 3 V). The part
is available in 24-lead, 0.3 inch wide dual-in-line package
(DIP), 24-lead small outline (SOIC) and 24-lead small shrink
outline (SSOP) packages.
PRODUCT HIGHLIGHTS
1. Specified for 3 V and 5 V supplies.
2. Automatic calibration on power-up.
3. Flexible power management options including automatic
power-down after conversion.
4. Operates with reference voltages from 1.2 V to V
DD
.
5. Analog input ranges from 0 V to V
DD
.
6. Self- and system calibration.
7. Versatile serial I/O port (SPI/QSPI/8051/
μ
P).
8. Lower power version AD7853L.
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., 1998
*Patent pending.
SPI and QSPI are trademarks of Motorola, Incorporated.
相關PDF資料 |
PDF描述 |
|---|---|
| AD7853ARS | 3 V to 5 V Single Supply, 200 kSPS 12-Bit Sampling ADCs |
| AD7853BN | 3 V to 5 V Single Supply, 200 kSPS 12-Bit Sampling ADCs |
| AD7853BR | 3 V to 5 V Single Supply, 200 kSPS 12-Bit Sampling ADCs |
| AD7853LAN | 3 V to 5 V Single Supply, 200 kSPS 12-Bit Sampling ADCs |
| AD7853LAR | 3 V to 5 V Single Supply, 200 kSPS 12-Bit Sampling ADCs |
相關代理商/技術參數 |
參數描述 |
|---|---|
| AD7853AR-REEL | 制造商:Analog Devices 功能描述:ADC Single SAR 200ksps 12-bit Serial 24-Pin SOIC W T/R |
| AD7853ARS | 制造商:Analog Devices 功能描述:ADC Single SAR 200ksps 12-bit Serial 24-Pin SSOP 制造商:Rochester Electronics LLC 功能描述:SELF CAL.SERIAL 12-BIT ADC I.C. - Bulk |
| AD7853ARS-REEL | 制造商:Analog Devices 功能描述:ADC Single SAR 200ksps 12-bit Serial 24-Pin SSOP T/R 制造商:Rochester Electronics LLC 功能描述:SELF CAL.SERIAL 12-BIT ADC I.C. - Tape and Reel |
| AD7853ARS-REEL7 | 制造商:Analog Devices 功能描述:ADC Single SAR 200ksps 12-bit Serial 24-Pin SSOP T/R 制造商:Analog Devices 功能描述:ADC SGL SAR 200KSPS 12-BIT SERL 24SSOP - Tape and Reel |
| AD7853ARSZ | 功能描述:IC ADC 12BIT SRL 200KSPS 24SSOP RoHS:是 類別:集成電路 (IC) >> 數據采集 - 模數轉換器 系列:- 產品培訓模塊:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 標準包裝:2,500 系列:- 位數:12 采樣率（每秒）:3M 數據接口:- 轉換器數目:- 功率耗散（最大）:- 電壓電源:- 工作溫度:- 安裝類型:表面貼裝 封裝/外殼:SOT-23-6 供應商設備封裝:SOT-23-6 包裝:帶卷 (TR) 輸入數目和類型:- |
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