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参数资料
| 型号： | AD573JNZ |
| 厂商： | Analog Devices Inc |
| 文件页数： | 9/10页 |
| 文件大小： | 0K |
| 描述： | IC ADC 10BIT SAR REGISTER 20-DIP |
| 标准包装： | 18 |
| 位数： | 10 |
| 采样率（每秒）： | 50k |
| 数据接口： | 并联 |
| 转换器数目： | 1 |
| 功率耗散（最大）： | 800mW |
| 电压电源： | 双 ± |
| 工作温度： | 0°C ~ 70°C |
| 安装类型： | 通孔 |
| 封装/外壳： | 20-DIP（0.300"，7.62mm） |
| 供应商设备封装： | 20-PDIP |
| 包装： | 管件 |
| 输入数目和类型： | 1 个单端，单极；1 个单端，双极 |
| 产品目录页面： | 777 (CN2011-ZH PDF) |
AD573
–8–
It is also possible to write a faster-executing assembly-language
routine to control the AD573. Such a routine will require a de-
lay between starting and reading the converter. This can be eas-
ily implemented by calling the Apple’s WAIT subroutine (which
resides at location $FCA8) after loading the accumulator with a
number greater than or equal to two.
8085-Series Microprocessor Interface
The AD573 can also be used with 8085-series microprocessors.
These processors use separate control signals for RD and WR,
as opposed to the single R/W control signal used in the 6800/
6500 series processors.
There are two constraints related to operation of the AD573
with 8085-series processors. The first problem is the width of
the CONVERT pulse. The circuit shown in Figure 17 (essen-
tially the same as that shown in Figure 13) will produce a wide
enough CONVERT pulse when the 8085 is running at 5 MHz.
For 8085 systems running at slower clock rates (3 MHz), the
flip-flop-based circuit can be eliminated since the WR pulse will
be approximately 500 ns wide.
The other consideration is the access time of the AD573’s three-
state output data buffers, which is 250 ns maximum. It may be
necessary to insert wait states during RD operations from the
AD573. This will not be a problem in systems using memories
with comparable access times, since wait states will have already
been provided in the basic system design.
Figure 17. AD573–8085A Interface Connections
The following assembly-language subroutine can be used to
control an AD573 residing at memory locations 3000H and
3001H. The 10 bits of data are returned (left-justified) in the
DE register pair.
ADC:
LXI H, 3000 ; LOAD HL WITH AD573 ADDRESS
MOV M, A
; START CONVERSION
MVI B, 06
; LOAD DELAY PERIOD
LOOP: DCR B
; DELAY LOOP
JNZ LOOP
;
MOV A, M
; READ LOW BYTE
ANI C0
; MASK LOWER 6 BITS
MOV E, A
; STORE CLEAN LOW BYTE IN E
INR L
; LOAD HIGH BYTE ADDRESS
MOV D, M
; MOVE HIGH BYTE TO D
RET
; EXIT
REV. B
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相关代理商/技术参数 |
参数描述 |
|---|---|
| AD573JP | 功能描述:IC ADC 10BIT SAR REGISTER 20PLCC RoHS:否 类别:集成电路 (IC) >> 数据采集 - 模数转换器 系列:- 标准包装:1 系列:- 位数:14 采样率（每秒）:83k 数据接口:串行，并联 转换器数目:1 功率耗散（最大）:95mW 电压电源:双 ± 工作温度:0°C ~ 70°C 安装类型:通孔 封装/外壳:28-DIP（0.600"，15.24mm） 供应商设备封装:28-PDIP 包装:管件 输入数目和类型:1 个单端，双极 |
| AD573JPZ | 功能描述:IC ADC 10BIT SAR REGISTER 20PLCC RoHS:是 类别:集成电路 (IC) >> 数据采集 - 模数转换器 系列:- 标准包装:1 系列:- 位数:14 采样率（每秒）:83k 数据接口:串行，并联 转换器数目:1 功率耗散（最大）:95mW 电压电源:双 ± 工作温度:0°C ~ 70°C 安装类型:通孔 封装/外壳:28-DIP（0.600"，15.24mm） 供应商设备封装:28-PDIP 包装:管件 输入数目和类型:1 个单端，双极 |
| AD573KD | 功能描述:IC ADC 10BIT SAR REG 20-CDIP RoHS:否 类别:集成电路 (IC) >> 数据采集 - 模数转换器 系列:- 产品培训模块:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 标准包装:250 系列:- 位数:12 采样率（每秒）:1.8M 数据接口:并联 转换器数目:1 功率耗散（最大）:1.82W 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-LQFP 供应商设备封装:48-LQFP（7x7） 包装:管件 输入数目和类型:2 个单端，单极 |
| AD573KD/+ | 制造商:Rochester Electronics LLC 功能描述:- Bulk |
| AD573KN | 制造商:Analog Devices 功能描述:ADC Single SAR 10-bit Parallel 20-Pin PDIP N 制造商:Rochester Electronics LLC 功能描述:IC, MONO 10-BIT A/D CONV - Bulk |
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