AD573JN/+

更新时间： 2024-01-11 03:02:09

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	330K
描述
IC IC,A/D CONVERTER,SINGLE,10-BIT,BIPOLAR,DIP,20PIN, Analog to Digital Converter

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AD573JN/+ 技术参数

Source Url Status Check Date：	2013-05-01 14:56:14.576	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：	DIP	包装说明：	DIP, DIP20,.3
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：	7.77	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：	R-CDIP-T20
JESD-609代码：	e0	长度：	25.4 mm
最大线性误差 (EL)：	0.0977%	标称负供电电压：	-15 V
模拟输入通道数量：	1	位数：	10
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, OFFSET BINARY	输出格式：	PARALLEL, WORD
封装主体材料：	CERAMIC, METAL-SEALED COFIRED	封装代码：	DIP
封装等效代码：	DIP20,.3	封装形状：	RECTANGULAR
封装形式：	IN-LINE	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：	5.08 mm	子类别：	Analog to Digital Converters
标称供电电压：	5 V	表面贴装：	NO
技术：	BIPOLAR	温度等级：	MILITARY
端子面层：	Tin/Lead (Sn63Pb37)	端子形式：	THROUGH-HOLE
端子节距：	2.54 mm	端子位置：	DUAL
处于峰值回流温度下的最长时间：	NOT SPECIFIED	宽度：	7.62 mm
Base Number Matches：	1

AD573JN/+ 数据手册

AD573

ABSOLUTE MAXIMUM RATINGS

V+ to Digital Common . . . . . . . . . . . . . . . . . . . . . 0 V to +7 V

V– to Digital Common . . . . . . . . . . . . . . . . . . . 0 V to –16.5 V

Analog Common to Digital Common . . . . . . . . . . . . . . . ±1 V

Analog Input to Analog Common . . . . . . . . . . . . . . . . . ±15 V

Control Inputs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0 V to V+

Digital Outputs (High Impedance State) . . . . . . . . . . 0 V to V+

Power Dissipation . . . . . . . . . . . . . . . . . . . . . . . . . . . . 800 mW

ORDERING GUIDE¹

Temperature

Range

Relative

Accuracy

Model

Package Option²

AD573JN

AD573KN

AD573JP

AD573KP

AD573JD

AD573KD

AD573 SD

20-Pin Plastic DIP (N-20)

0°C to +70°C

–55°C to +125°C

±1 LSB max

±1/2 LSB max

±1 LSB max

±1/2 LSB max

±1 LSB max

±1/2 LSB max

±1 LSB max

20-Pin Leaded Chip Carrier (P-20A)

20-Pin Ceramic DIP (D-20)

NOTES

¹For details on grade and package offerings screened in accordance with MIL-STD-883, refer to Analog Devices Military

Products Databook.

²D = Ceramic DIP; N = Plastic DIP; P = Plastic Leaded Chip Carrier.

DIGITAL

COMMON

FUNCTIONAL DESCRIPTION

V+

V–

CONVERT

A block diagram of the AD573 is shown in Figure 1. The posi-

tive CONVERT pulse must be at least 500 ns wide. DR goes

high within 1.5 µs after the leading edge of the convert pulse

indicating that the internal logic has been reset. The negative

edge of the CONVERT pulse initiates the conversion. The in-

ternal 10-bit current output DAC is sequenced by the integrated

injection logic (I²L) successive approximation register (SAR)

from its most significant bit to least significant bit to provide an

output current which accurately balances the input signal cur-

rent through the 5 kΩ resistor. The comparator determines

whether the addition of each successively weighted bit current

causes the DAC current sum to be greater or less than the input

current; if the sum is more, the bit is turned off. After testing all

bits, the SAR contains a 10-bit binary code which accurately

represents the input signal to within 1/2 LSB (0.05% of full scale).

MSB

DB9

ANALOG

DB8

DB7

DB6

ANALOG

COMMON

10-BIT

SAR

CURRENT

OUTPUT

DAC

HIGH

BYTE

DB5

DB4

DB3

DB2

COMP-

ARATOR

INT

CLOCK

BIPOLAR

OFFSET

CONTROL

DB1

DB0

LOW

BYTE

LSB

HBE

LBE

BURIED ZENER REF

DATA

READY

AD573

The SAR drives DR low to indicate that the conversion is com-

plete and that the data is available to the output buffers. HBE

and LBE can then be activated to enable the upper 8-bit and

lower 2-bit buffers as desired. HBE and LBE should be brought

high prior to the next conversion to place the output buffers in

the high impedance state.

Figure 1. Functional Block Diagram

UNIPOLAR CONNECTION

The AD573 contains all the active components required to per-

form a complete A/D conversion. Thus, for many applications,

all that is necessary is connection of the power supplies (+5 V

and –12 V to –15 V), the analog input and the convert pulse.

However, there are some features and special connections which

should be considered for achieving optimum performance. The

functional pinout is shown in Figure 2.

The temperature compensated buried Zener reference provides

the primary voltage reference to the DAC and ensures excellent

stability with both time and temperature. The bipolar offset in-

put controls a switch which allows the positive bipolar offset

current (exactly equal to the value of the MSB less 1/2 LSB) to

be injected into the summing (+) node of the comparator to

offset the DAC output. Thus the nominal 0 V to +10 V unipolar

input range becomes a –5 V to +5 V range. The 5 kΩ thin-film

input resistor is trimmed so that with a full-scale input signal, an

input current will be generated which exactly matches the DAC

output with all bits on.

The standard unipolar 0 V to +10 V range is obtained by short-

ing the bipolar offset control pin (Pin 16) to digital common

(Pin 17).

REV. A

–3–

1 234 5 6 7 8

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与AD573JN/+相关器件

型号	品牌	描述	获取价格	数据表
AD573JNZ	ADI	10-Bit A/D Converter	获取价格
AD573JP	ADI	10-Bit A/D Converter	获取价格
AD573JPZ	ADI	10-Bit A/D Converter	获取价格
AD573KD	ADI	10-Bit A/D Converter	获取价格
AD573KD/+	ADI	IC IC,A/D CONVERTER,SINGLE,10-BIT,BIPOLAR,DIP,20PIN, Analog to Digital Converter	获取价格
AD573KN	ADI	10-Bit A/D Converter	获取价格

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