Datasheet > AD673SD

AD673SD

更新时间： 2024-02-06 08:27:30

品牌	Logo	应用领域
亚德诺 - ADI		转换器
页数	文件大小	规格书
8页	281K
描述
8-Bit A/D Converter

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技术参数
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AD673SD 技术参数

是否Rohs认证：	不符合	生命周期：	Obsolete
零件包装代码：	QLCC	包装说明：	LCC-20
针数：	20	Reach Compliance Code：	not_compliant
ECCN代码：	EAR99	HTS代码：	8542.39.00.01
风险等级：	5.31	最大模拟输入电压：	5 V
最小模拟输入电压：	-5 V	最长转换时间：	30 µs
转换器类型：	ADC, SUCCESSIVE APPROXIMATION	JESD-30 代码：	S-PQCC-J20
JESD-609代码：	e0	长度：	8.9662 mm
最大线性误差 (EL)：	0.1953%	标称负供电电压：	-15 V
模拟输入通道数量：	1	位数：	8
功能数量：	1	端子数量：	20
最高工作温度：	70 °C	最低工作温度：
输出位码：	BINARY, OFFSET BINARY	输出格式：	PARALLEL, 8 BITS
封装主体材料：	PLASTIC/EPOXY	封装代码：	QCCJ
封装等效代码：	LDCC20,.4SQ	封装形状：	SQUARE
封装形式：	CHIP CARRIER	峰值回流温度（摄氏度）：	NOT SPECIFIED
电源：	5,-12/-15 V	认证状态：	Not Qualified
采样速率：	0.05 MHz	采样并保持/跟踪并保持：	SAMPLE
座面最大高度：	4.57 mm	子类别：	Analog to Digital Converters
标称供电电压：	5 V	表面贴装：	YES
技术：	BIPOLAR	温度等级：	COMMERCIAL
端子面层：	Tin/Lead (Sn/Pb)	端子形式：	J BEND
端子节距：	1.27 mm	端子位置：	QUAD
处于峰值回流温度下的最长时间：	NOT SPECIFIED	宽度：	8.9662 mm
Base Number Matches：	1

AD673SD 数据手册

8-Bit A/D Converter

AD673*

FUNCTIONAL BLOCK DIAGRAM

FEATURES

Complete 8-Bit A/D Converter with Reference, Clock

and Comparator

30 ␮s Maximum Conversion Time

Full 8- or 16-Bit Microprocessor Bus Interface

Unipolar and Bipolar Inputs

DIGITAL

COMMON

CONVERT

MSB

DB7

ANALOG

DB6

DB5

DB4

DB3

DB2

DB1

DB0

No Missing Codes Over Temperature

Operates on +5 V and –12 V to –15 V Supplies

MIL-STD-883 Compliant Version Available

ANALOG

COMMON

8-BIT

SAR

CURRENT

OUTPUT

DAC

COMP-

ARATOR

INT

CLOCK

BIPOLAR

OFFSET

CONTROL

LSB

DATA

ENABLE

BURIED ZENER REF

AD673

GENERAL DESCRIPTION

DATA

READY

The AD673 is a complete 8-bit successive approximation

analog-to-digital converter consisting of a DAC, voltage refer-

ence, clock, comparator, successive approximation register

(SAR) and 3-state output buffers—all fabricated on a single

chip. No external components are required to perform a full ac-

curacy 8-bit conversion in 20 µs.

PRODUCT HIGHLIGHTS

1. The AD673 is a complete 8-bit A/D converter. No external

components are required to perform a conversion.

The AD673 incorporates advanced integrated circuit design and

processing technologies. The successive approximation function

is implemented with I²L (integrated injection logic). Laser trim-

ming of the high stability SiCr thin-film resistor ladder network

insures high accuracy, which is maintained with a temperature

compensated sub-surface Zener reference.

2. The AD673 interfaces to many popular microprocessors

without external buffers or peripheral interface adapters.

3. The device offers true 8-bit accuracy and exhibits no missing

codes over its entire operating temperature range.

4. The AD673 adapts to either unipolar (0 V to +10 V) or

bipolar (–5 V to +5 V) analog inputs by simply grounding or

opening a single pin.

Operating on supplies of +5 V and –12 V to –15 V, the AD673

will accept analog inputs of 0 V to +10 V or –5 V to +5 V. The

trailing edge of a positive pulse on the CONVERT line initiates

the 20 µs conversion cycle. DATA READY indicates comple-

tion of the conversion.

5. Performance is guaranteed with +5 V and –12 V or –15 V

supplies.

6. The AD673 is available in a version compliant with MIL-

STD-883. Refer to the Analog Devices Military Products

Databook or current AD673/883B data sheet for detailed

specifications.

The AD673 is available in two versions. The AD673J as speci-

fied over the 0°C to +70°C temperature range and the AD673S

guarantees ±1/2 LSB relative accuracy and no missing codes

from –55°C to +125°C.

Two package configurations are offered. All versions are also of-

fered in a 20-pin hermetically sealed ceramic DIP. The AD673J

is also available in a 20-pin plastic DIP.

*Protected by U.S. Patent Nos. 3,940,760; 4,213,806; 4,136,349; 4,400,689;

and 4,400,690.

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.

One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.

Tel: 617/329-4700

Fax: 617/326-8703

12 3 4 5 6 7 8

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