参数资料
型号: AD7401AYRWZ
厂商: Analog Devices Inc
文件页数: 20/20页
文件大小: 0K
描述: IC MODULATOR SIGMA-DELTA 16SOIC
标准包装: 47
位数: 16
采样率(每秒): 20M
数据接口: 串行
转换器数目: 1
功率耗散(最大): 93.5mW
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(0.295",7.50mm 宽)
供应商设备封装: 16-SOIC W
包装: 管件
输入数目和类型: 1 个差分,双极
产品目录页面: 798 (CN2011-ZH PDF)
AD7401A
Rev. C | Page 9 of 20
PIN CONFIGURATION AND FUNCTION DESCRIPTIONS
VDD1 1
VIN+ 2
VIN3
NC 4
GND2
16
NC
15
VDD2
14
MCLKIN
13
NC 5
NC
12
NC 6
MDAT
11
VDD1/NC 7
NC
10
GND1 8
GND2
9
NC = NO CONNECT
AD7401A
TOP VIEW
(Not to Scale)
07
33
2-
0
05
Figure 5. Pin Configuration
Table 8. Pin Function Descriptions
Pin No.
Mnemonic
Description
1
VDD1
Supply Voltage, 4.5 V to 5.5 V. This is the supply voltage for the isolated side of the AD7401A and is relative to GND1.
2
VIN+
Positive Analog Input. Specified range of ±250 mV.
3
VIN
Negative Analog Input. Normally connected to GND1.
4 to 6, 10,
12, 15
NC
No Connect.
7
VDD1/NC
Supply Voltage. 4.5 V to 5.5 V. This is the supply voltage for the isolated side of the AD7401A and is relative to
GND1.
No Connect (NC). If desired, Pin 7 may be allowed to float. It should not be tied to ground. The AD7401A will
operate normally provided that the supply voltage is applied to Pin 1.
8
GND1
Ground 1. This is the ground reference point for all circuitry on the isolated side.
9, 16
GND2
Ground 2. This is the ground reference point for all circuitry on the nonisolated side.
11
MDAT
Serial Data Output. The single bit modulator output is supplied to this pin as a serial data stream.
The bits are clocked out on the rising edge of the MCLKIN input and valid on the following MCLKIN rising edge.
13
MCLKIN
Master Clock Logic Input. 20 MHz maximum. The bit stream from the modulator is valid on the rising edge of MCLKIN.
14
VDD2
Supply Voltage. 3 V to 5.5 V. This is the supply voltage for the nonisolated side and is relative to GND2.
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