参数资料
| 型号： | AD5323ARUZ |
| 厂商： | Analog Devices Inc |
| 文件页数： | 15/28页 |
| 文件大小： | 0K |
| 描述： | IC DAC 12BIT DUAL R-R 16-TSSOP |
| 产品培训模块： | Data Converter Fundamentals DAC Architectures |
| 标准包装： | 96 |
| 设置时间： | 8µs |
| 位数： | 12 |
| 数据接口： | 串行 |
| 转换器数目： | 2 |
| 电压电源： | 单电源 |
| 功率耗散（最大）： | 2.5mW |
| 工作温度： | -40°C ~ 105°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 16-TSSOP（0.173"，4.40mm 宽） |
| 供应商设备封装： | 16-TSSOP |
| 包装： | 管件 |
| 输出数目和类型： | 2 电压，单极；2 电压，双极 |
| 采样率（每秒）： | 125k |
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AD5303/AD5313/AD5323
Rev. B | Page 22 of 28
OPTO-ISOLATED INTERFACE FOR PROCESS
CONTROL APPLICATIONS
The AD5303/AD5313/AD5323 has a versatile 3-wire serial
interface making it ideal for generating accurate voltages in
process control and industrial applications. Due to noise, safety
requirements, or distance, it may be necessary to isolate the
AD5303/AD5313/AD5323 from the controller. This can easily
be achieved by using opto-isolators, which provides isolation
in excess of 3 kV. The serial loading structure of the AD5303/
AD5313/AD5323 makes it ideally suited for use in opto-isolated
applications. Figure 42 shows an opto-isolated interface to the
AD5303/AD5313/AD5323 where DIN, SCLK, and SYNC are
driven from opto-couplers. The power supply to the part also
needs to be isolated. This is done by using a transformer. On the
DAC side of the transformer, a 5 V regulator provides the 5 V
supply required for the AD5303/AD5313/AD5323.
SCLK
DIN
AD5303/AD5313/
AD5323
00
47
2-
0
42
SYNC
5V
REGULATOR
POWER
VDD
10F
0.1F
VOUTA
VOUTB
VREFB
VREFA
VDD
10k
10k
DIN
SYNC
SCLK
VDD
GND BUF A BUF B
Figure 42. AD5303/AD5313/AD5323 in an Opto-Isolated Interface
DECODING MULTIPLE AD5303/AD5313/AD5323s
The SYNC pin on the AD5303/AD5313/AD5323 can be used
in applications to decode a number of DACs. In this application,
all the DACs in the system receive the same serial clock and
serial data, but only the SYNC to one of the devices is active at
any one time, allowing access to two channels in this 8-channel
system. The 74HC139 is used as a 2-to-4 line decoder to address
any of the DACs in the system. To prevent timing errors from
occurring, the enable input should be brought to its inactive
state while the coded address inputs are changing state.
Figure 43 shows a diagram of a typical setup for decoding
multiple AD5303/AD5313/AD5323 devices in a system.
00
47
2-
0
43
SCLK
DIN
SCLK
AD5303/
AD5313/
AD5323
SYNC
74HC139
ENABLE
CODED
ADDRESS
1G
1A
1B
DGND
1Y0
1Y1
1Y2
1Y3
VCC
VDD
DIN
SCLK
AD5303/
AD5313/
AD5323
SYNC
DIN
SCLK
AD5303/
AD5313/
AD5323
SYNC
DIN
SCLK
AD5303/
AD5313/
AD5323
SYNC
Figure 43. Decoding Multiple AD5303/AD5313/AD5323 Devices in a System
AD5303/AD5313/AD5323 AS A DIGITALLY
PROGRAMMABLE WINDOW DETECTOR
A digitally programmable upper/lower limit detector using
the two DACs in the AD5303/AD5313/AD5323 is shown in
Figure 44. The upper and lower limits for the test are loaded
to DAC A and DAC B, which, in turn, set the limits on the
grammed window, an LED indicates the fail condition.
5V
1/2
CMP04
FAIL
PASS
1/6 74HC05
VREF
SCLK
DIN
VOUTA
VDD
0
047
2-
0
44
AD5303/AD5313/
AD5323
VREFA
GND
0.1F
10F
1k
VIN
PASS/FAIL
DIN
SCLK
SYNC
VREFB
VOUTB
Figure 44. Window Detector Using AD5303/AD5313/AD5323
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相关代理商/技术参数 |
参数描述 |
|---|---|
| AD5323ARUZ1 | 制造商:AD 制造商全称:Analog Devices 功能描述:2.5 V to 5.5 V, 230 ??A, Dual Rail-to-Rail Voltage Output 8-/10-/12-Bit DACs |
| AD5323ARUZ-REEL7 | 功能描述:IC DAC 12BIT DUAL R-R 16-TSSOP RoHS:是 类别:集成电路 (IC) >> 数据采集 - 数模转换器 系列:- 标准包装:2,400 系列:- 设置时间:- 位数:18 数据接口:串行 转换器数目:3 电压电源:模拟和数字 功率耗散（最大）:- 工作温度:-40°C ~ 85°C 安装类型:表面贴装 封装/外壳:36-TFBGA 供应商设备封装:36-TFBGA 包装:带卷 (TR) 输出数目和类型:* 采样率（每秒）:* |
| AD5323ARUZ-REEL71 | 制造商:AD 制造商全称:Analog Devices 功能描述:2.5 V to 5.5 V, 230 ??A, Dual Rail-to-Rail Voltage Output 8-/10-/12-Bit DACs |
| AD5323BRU | 功能描述:IC DAC 12 BIT DUAL R-R 16-TSSOP RoHS:否 类别:集成电路 (IC) >> 数据采集 - 数模转换器 系列:- 标准包装:47 系列:- 设置时间:2µs 位数:14 数据接口:并联 转换器数目:1 电压电源:单电源 功率耗散（最大）:55µW 工作温度:-40°C ~ 85°C 安装类型:表面贴装 封装/外壳:28-SSOP（0.209"，5.30mm 宽） 供应商设备封装:28-SSOP 包装:管件 输出数目和类型:1 电流，单极；1 电流，双极 采样率（每秒）:* |
| AD5323BRU-REEL | 制造商:Analog Devices 功能描述:DAC 2-CH Resistor-String 12-bit 16-Pin TSSOP T/R 制造商:Analog Devices 功能描述:DAC 2CH RES-STRING 12-BIT 16TSSOP - Tape and Reel |
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