参数资料
型号: AD7819YRZ
厂商: Analog Devices Inc
文件页数: 6/11页
文件大小: 0K
描述: IC ADC 8BIT SAMPLING PAR 16-SOIC
标准包装: 48
位数: 8
采样率(每秒): 200k
数据接口: 并联
转换器数目: 1
功率耗散(最大): 17.5mW
电压电源: 单电源
工作温度: -40°C ~ 125°C
安装类型: 表面贴装
封装/外壳: 16-SOIC(0.154",3.90mm 宽)
供应商设备封装: 16-SOIC
包装: 管件
输入数目和类型: 1 个单端,单极
产品目录页面: 779 (CN2011-ZH PDF)
REV. B
AD7819
–4–
PIN FUNCTION DESCRIPTIONS
Pin
No.
Mnemonic
Description
1VREF
Reference Input, 1.2 V to VDD.
2VIN
Analog Input, 0 V to VREF.
3
GND
Analog and Digital Ground.
4
CONVST
Convert Start. A low-to-high transition on this pin initiates a 1.5
s pulse on an internally generated
CONVST signal. A high-to-low transition on this line initiates the conversion process if the internal
CONVST signal is low. Depending on the signal on this pin at the end of a conversion, the AD7819
automatically powers down.
5
CS
Chip Select. This is a logic input.
CS is used in conjunction with RD to enable outputs.
6
RD
Read Pin. This is a logic input. When
CS is low and RD goes low, the DB7–DB0 leave their high
impedance state and data is driven onto the data bus.
7
BUSY
ADC Busy Signal. This is a logic output. This signal goes logic high during the conversion process.
8–15
DB0–DB7
Data Bit 0 to 7. These outputs are three-state TTL-compatible.
16
VDD
Positive power supply voltage, 2.7 V to 5.5 V.
PIN CONFIGURATION
DIP/SOIC
14
13
12
11
16
15
10
9
8
1
2
3
4
7
6
5
TOP VIEW
(Not to Scale)
AD7819
VREF
DB5
DB6
DB7
VDD
VIN
GND
CONVST
DB2
DB3
DB4
CS
RD
BUSY
DB0
DB1
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