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| 型号： | AD7823YRZ-REEL |
| 厂商： | Analog Devices Inc |
| 文件页数： | 1/11页 |
| 文件大小： | 0K |
| 描述： | IC ADC 8BIT SRL 2.7-5.5V 8SOIC |
| 产品变化通告： | Product Discontinuance 27/Oct/2011 |
| 标准包装： | 2,500 |
| 位数： | 8 |
| 采样率（每秒）： | 200k |
| 数据接口： | 串行 |
| 转换器数目： | 1 |
| 功率耗散（最大）： | 17.5mW |
| 电压电源： | 单电源 |
| 工作温度： | -40°C ~ 125°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 8-SOIC（0.154"，3.90mm 宽） |
| 供应商设备封装： | 8-SOIC |
| 包装： | 带卷 (TR) |
| 输入数目和类型： | 2 个伪差分，单极 |
REV. C
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
AD7823
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
2.7 V to 5.5 V, 5 s, 8-Bit
ADC in 8-Lead microSOIC/DIP
FUNCTIONAL BLOCK DIAGRAM
CLOCK
OSC
DOUT
SCLK
VREF
AGND
VDD
VIN+
VIN–
CONVST
SERIAL
PORT
CHARGE
REDISTRIBUTION
DAC
CONTROL
LOGIC
AD7823
COMP
VDD/3
FEATURES
8-Bit ADC with 4
s Conversion Time
Small Footprint 8-Lead microSOIC Package
Specified Over a –40 C to +125 C Temperature Range
Inherent Track-and-Hold Functionality
Operating Supply Range: 2.7 V to 5.5 V
Specifications at 2.7 V to 5.5 V and 5 V
10%
Microcontroller Compatible Serial Interface
Optional Automatic Power-Down
Low Power Operation:
570
W at 10 kSPS Throughput Rate
2.9 mW at 50 kSPS Throughput Rate
Analog Input Range: 0 V to VREF
Reference Input Range: 0 V to VDD
“Drop In” Upgrade to 10 Bits Available (AD7810)
APPLICATIONS
Low Power, Hand-Held Portable Applications
Requiring Analog-to-Digital Conversion
with 8-Bit Accuracy, e.g.,
Battery-Powered Test Equipment
Battery-Powered Communications Systems
GENERAL DESCRIPTION
The AD7823 is a high speed, low power, 8-bit A/D converter
that operates from a single 2.7 V to 5.5 V supply. The part con-
tains a 4
s typ successive approximation A/D converter, inherent
track-and-hold functionality (with a pseudo differential input)
and a high speed serial interface that interfaces to most microcon-
trollers. The AD7823 is fully specified over a temperature range
of –40
°C to +125°C.
By using a technique that samples the state of the
CONVST
(convert start) signal at the end of a conversion, the AD7823
may be used in an automatic power-down mode. When used in
this mode, the AD7823 powers down automatically at the end
of a conversion and “wakes up” at the start of a new conversion.
This feature significantly reduces the power consumption of the
part at lower throughput rates. The AD7823 can also operate in
a high speed mode where the part is not powered down between
conversions. In this high speed mode of operation, the conver-
sion time of the AD7823 is 4
s typ. The maximum throughput
rate is dependent on the speed of the serial interface of the
microcontroller.
The part is available in a small, 8-lead 0.3" wide, plastic dual-in-
line package (mini-DIP); in an 8-lead, small outline IC (SOIC);
and in an 8-lead microSOIC package.
PRODUCT HIGHLIGHTS
1. Complete, 8-Bit ADC in 8-Lead Package
The AD7823 is an 8-bit 4
s typ ADC with inherent track-
and-hold functionality and a high speed serial interface—all
in an 8-lead microSOIC package. VREF may be connected to
VDD to eliminate the need for an external reference. The result
is a high speed, low power, space saving ADC solution.
2. Low Power, Single Supply Operation
The AD7823 operates from a single 2.7 V to 5.5 V supply and
typically consumes only 9 mW of power. The power dissipa-
tion can be significantly reduced at lower throughput rates by
using the automatic power-down mode, e.g., at a throughput
rate of 10 kSPS the power consumption is only 570
W.
3. Automatic Power-Down
The automatic power-down mode, whereby the AD7823
“powers down” at the end of a conversion and “wakes up”
before the next conversion, means the AD7823 is ideal for
battery powered applications. See Power vs. Throughput
Rate section.
4. Serial Interface
An easy to use, fast serial interface allows connection to most
popular microprocessors with no external circuitry.
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| AD7823YRZ-REEL7 | 功能描述:IC ADC 8BIT SRL 2.7-5.5V 8SOIC RoHS:是 类别:集成电路 (IC) >> 数据采集 - 模数转换器 系列:- 标准包装:2,500 系列:- 位数:16 采样率（每秒）:15 数据接口:MICROWIRE?，串行，SPI? 转换器数目:1 功率耗散（最大）:480µW 电压电源:单电源 工作温度:-40°C ~ 85°C 安装类型:表面贴装 封装/外壳:38-WFQFN 裸露焊盘 供应商设备封装:38-QFN（5x7） 包装:带卷 (TR) 输入数目和类型:16 个单端，双极；8 个差分，双极 配用:DC1011A-C-ND - BOARD DELTA SIGMA ADC LTC2494 |
| AD7824 | 制造商:AD 制造商全称:Analog Devices 功能描述:LC2MOS High Speed 4- & 8-Channel 8-Bit ADCs |
| AD7824BCHIPS | 制造商:未知厂家 制造商全称:未知厂家 功能描述:Single-Ended Data Acquisition System |
| AD7824BQ | 功能描述:IC ADC 8BIT LC2MOS 4CH HS 24CDIP RoHS:否 类别:集成电路 (IC) >> 数据采集 - 模数转换器 系列:- 其它有关文件:TSA1204 View All Specifications 标准包装:1 系列:- 位数:12 采样率（每秒）:20M 数据接口:并联 转换器数目:2 功率耗散（最大）:155mW 电压电源:模拟和数字 工作温度:-40°C ~ 85°C 安装类型:表面贴装 封装/外壳:48-TQFP 供应商设备封装:48-TQFP（7x7） 包装:Digi-Reel® 输入数目和类型:4 个单端，单极；2 个差分，单极 产品目录页面:1156 (CN2011-ZH PDF) 其它名称:497-5435-6 |
| AD7824BQ/+ | 制造商:未知厂家 制造商全称:未知厂家 功能描述:Single-Ended Data Acquisition System |
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