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參數資料
| 型號： | AD7851 |
| 廠商： | Analog Devices, Inc. |
| 英文描述： | 14-Bit 333 kSPS Serial A/D Converter |
| 中文描述： | 14位333 kSPS的串行A / D轉換器 |
| 文件頁數： | 1/36頁 |
| 文件大小： | 435K |
| 代理商： | AD7851 |
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REV. A
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
AD7851
Analog Devices, Inc., 1996
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.
Tel: 617/329-4700
Fax: 617/326-8703
FUNCT IONAL BLOCK DIAGRAM
AIN(+)
AIN(–)
C
REF1
C
REF2
CAL
AV
DD
AGND
AGND
DV
DD
DGND
AMODE
CLKIN
SLEEP
CONVST
BUSY
SYNC
SM1
SM2
DIN
DOUT SCLK POLARITY
CHARGE
REDISTRIBUTION
DAC
COMP
4.096 V
REFERENCE
AD7851
BUF
T/H
SAR + ADC
CONTROL
CALIBRATION
MEMORY
AND CONTROLLER
SERIAL INTERFACE / CONTROL REGISTER
REF
IN
/
REF
OUT
14-Bit 333 kSPS
Serial A/DConverter
FEATURES
Single 5 V Supply
333 kSPS Throughput Rate/
6
2 LSB DNL—A Grade
285 kSPS Throughput Rate/
6
1 LSB DNL—K Grade
A & K Grades Guaranteed to 125
8
C/238 kSPS
Throughput Rate
Pseudo-Differential Input with Two Input Ranges
System and Self-Calibration with Autocalibration on
Power-Up
Read/Write Capability of Calibration Data
Low Power: 60 mW typ
Power-Down Mode: 5
m
W typ Power Consumption
Flexible Serial Interface:
8051/SPI/QSPI/
m
P Compatible
24-Pin DIP, SOIC and SSOP Packages
APPLICATIONS
Digital Signal Processing
Speech Recognition and Synthesis
Spectrum Analysis
DSP Servo Control
Instrumentation and Control Systems
High Speed Modems
Automotive
GE NE RAL DE SCRIPT ION
T he AD7851 is a high speed, 14-bit ADC that operates from a
single 5 V power supply. T he ADC powers-up with a set of
default conditions at which time it can be operated as a read-
only ADC. T he ADC contains self-calibration and system-
calibration options to ensure accurate operation over time and
temperature and has a number of power-down options for low
power applications.
T he AD7851 is capable of 333 kHz throughput rate. T he input
track-and-hold acquires a signal in 0.33
μ
s and features a
pseudo-differential sampling scheme. T he AD7851 has the
added advantage of two input voltage ranges (0 V to V
REF,
and
–V
REF
/2 to +V
REF
/2 centered about V
REF
/2). Input signal range
is to V
DD
and the part is capable of converting full-power signals
to 20 MHz.
CMOS construction ensures low power dissipation (60 mW typ)
with power-down mode (5
μ
W typ). T he part is available in 24-
pin, 0.3 inch-wide dual-in-line package (DIP), 24-lead small
outline (SOIC) and 24-lead small shrink outline (SSOP) packages.
*
Patent pending.
See Page 35 for data sheet index.
PRODUCT HIGHLIGHT S
1. Single 5 V supply.
2. Operates with reference voltages from 4 V to V
DD
.
3. Analog input ranges from 0 V to V
DD
.
4. System and self-calibration including power-down mode.
5. Versatile serial I/O port.
相關PDF資料 |
PDF描述 |
|---|---|
| AD7851AN | 14-Bit 333 kSPS Serial A/D Converter |
| AD7851AR | 14-Bit 333 kSPS Serial A/D Converter |
| AD7851ARS | 14-Bit 333 kSPS Serial A/D Converter |
| AD7851KN | 14-Bit 333 kSPS Serial A/D Converter |
| AD7851KR | 14-Bit 333 kSPS Serial A/D Converter |
相關代理商/技術參數 |
參數描述 |
|---|---|
| AD7851AN | 制造商:Analog Devices 功能描述:ADC Single SAR 333ksps 14-bit Serial 24-Pin PDIP 制造商:Rochester Electronics LLC 功能描述:14 BIT SELF CALIBRATION ADC I.C. - Bulk |
| AD7851ANZ | 功能描述:IC ADC 14BIT SRL 333KSPS 24-DIP 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:- |
| AD7851AR | 制造商:Analog Devices 功能描述:ADC Single SAR 333ksps 14-bit Serial 24-Pin SOIC W 制造商:Rochester Electronics LLC 功能描述:14 BIT SELF CALIBRATION ADC I.C. - Bulk |
| AD7851AR-REEL | 制造商:Analog Devices 功能描述:ADC Single SAR 333ksps 14-bit Serial 24-Pin SOIC W T/R |
| AD7851ARS | 制造商:Analog Devices 功能描述:ADC Single SAR 333ksps 14-bit Serial 24-Pin SSOP 制造商:Analog Devices 功能描述:IC 14-BIT ADC |
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