Datasheet > 5962-89518012A

5962-89518012A

更新时间： 2024-01-12 22:32:06

品牌	Logo	应用领域
亚德诺 - ADI		转换器
页数	文件大小	规格书
16页	290K
描述
High Speed, µP-Compatible, CMOS, 8-Bit Sampling ADC

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技术参数
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5962-89518012A 技术参数

是否无铅：	含铅	是否Rohs认证：	不符合
生命周期：	Active	零件包装代码：	QLCC
包装说明：	LCC-20	针数：	20
Reach Compliance Code：	not_compliant	ECCN代码：	3A001.A.2.C
HTS代码：	8542.39.00.01	风险等级：	5.11
最大模拟输入电压：	2.5 V	最小模拟输入电压：	-2.5 V
最长转换时间：	0.975 µs	转换器类型：	ADC, FLASH METHOD
JESD-30 代码：	S-CQCC-N20	JESD-609代码：	e4
长度：	8.89 mm	最大线性误差 (EL)：	0.3906%
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：	125 °C	最低工作温度：	-55 °C
输出位码：	BINARY	输出格式：	PARALLEL, 8 BITS
封装主体材料：	CERAMIC, METAL-SEALED COFIRED	封装代码：	QCCN
封装等效代码：	LCC20,.35SQ	封装形状：	SQUARE
封装形式：	CHIP CARRIER	峰值回流温度（摄氏度）：	NOT APPLICABLE
电源：	5,GND/-5 V	认证状态：	Qualified
采样速率：	1 MHz	采样并保持/跟踪并保持：	TRACK
筛选级别：	MIL-STD-883	座面最大高度：	2.54 mm
子类别：	Analog to Digital Converters	最大压摆率：	25 mA
标称供电电压：	5 V	表面贴装：	YES
技术：	CMOS	温度等级：	MILITARY
端子面层：	Gold (Au)	端子形式：	NO LEAD
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 APPLICABLE	宽度：	8.89 mm
Base Number Matches：	1

5962-89518012A 数据手册

LC²MOS High Speed, ␮P Compatible

8-Bit ADC with Track/Hold Function

AD7821

FUNCTIONAL BLOCK DIAGRAM

FEATURES

Fast Conversion Time: 660 ns Max

100 kHz Track-and-Hold Function

1 MHz Sample Rate

Unipolar and Bipolar Input Ranges

Ratiometric Reference Inputs

No External Clock

Extended Temperature Range Operation

Skinny 20-Lead DlPs, SOIC, and 20-Terminal

Surface-Mount Packages

GENERAL DESCRIPTION

PRODUCT HIGHLIGHTS

The AD7821 is a high speed, 8-bit, sampling, analog-to-digital

converter that offers improved performance over the popular

AD7820. It offers a conversion time of 660 ns (versus 1.36 µs

for the AD7820) and 100 kHz signal bandwidth (versus 6.4

kHz). The sampling instant is better defined and occurs on the

falling edge of WR or RD. The provision of a V_SSpin (Pin 19)

allows the part to operate from 5 V supplies and to digitize

bipolar input signals. Alternatively, for unipolar inputs, the V_SSpin

can be grounded and the AD7821 will operate from a single +5 V

supply, like the AD7820.

1. Fast Conversion Time

The half-flash conversion technique, coupled with fabrication

on Analog Devices’ LC²MOS process, enables a very fast con-

version time. The conversion time for the WR-RD mode is

660 ns, with 700 ns for the RD mode.

2. Built-In Track-and-Hold

This allows input signals with slew rates up to 1.6 V/µs to be

converted to 8 bits without an external track-and-hold. This

corresponds to a 5 V peak-to-peak, 100 kHz sine wave signal.

3. Total Unadjusted Error

The AD7821 features an excellent total unadjusted error figure

of less than 1 LSB over the full operating temperature range.

The AD7821 has a built-in track-and-hold function capable of

digitizing full-scale signals up to 100 kHz max. It also uses a

half-flash conversion technique that eliminates the need to gen-

erate a CLK signal for the ADC.

4. Unipolar/Bipolar Input Ranges

The AD7821 is specified for single-supply (+5 V) operation

with a unipolar full-scale range of 0 to +5 V, and for dual-supply

( 5 V) operation with a bipolar input range of 2.5 V. Typical

performance characteristics are given for other input ranges.

The AD7821 is designed with standard microprocessor control

signals (CS, RD, WR, RDY, INT) and latched, three-state data

outputs capable of interfacing to high speed data buses. An

overflow output (OFL) is also provided for cascading devices to

achieve higher resolution.

5. Dynamic Specifications for DSP Users

In addition to the traditional ADC specifications, the

AD7821 is specified for ac parameters, including signal-to-

noise ratio, distortion, and slew rate.

The AD7821 is fabricated in Linear Compatible CMOS

(LC²MOS), an advanced, mixed technology process combining

precision bipolar circuits with low power CMOS logic. The part

features a low power dissipation of 50 mW.

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, norforanyinfringementsofpatentsorotherrightsofthirdpartiesthat

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

Fax: 781/326-8703

www.analog.com

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与5962-89518012A相关器件

型号	品牌	描述	获取价格	数据表
5962-89518012B	ADI	IC 1-CH 8-BIT FLASH METHOD ADC, PARALLEL ACCESS, CQCC20, LCC-20, Analog to Digital Convert	获取价格
5962-89518012C	ADI	IC 1-CH 8-BIT FLASH METHOD ADC, PARALLEL ACCESS, CQCC20, LCC-20, Analog to Digital Convert	获取价格
5962-89518012X	ADI	IC 1-CH 8-BIT FLASH METHOD ADC, PARALLEL ACCESS, CQCC20, LCC-20, Analog to Digital Convert	获取价格
5962-8951801RA	ADI	High Speed, µP-Compatible, CMOS, 8-Bit Sampling ADC	获取价格
5962-8951801RB	ADI	IC 1-CH 8-BIT FLASH METHOD ADC, PARALLEL ACCESS, CDIP20, 1.060 X 0.310 INCH, CERDIP-20, An	获取价格
5962-8951801RX	ADI	IC 1-CH 8-BIT FLASH METHOD ADC, PARALLEL ACCESS, CDIP20, 1.060 X 0.310 INCH, CERDIP-20, An	获取价格

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