参数资料
型号: AD7171BCPZ-REEL7
厂商: Analog Devices Inc
文件页数: 14/16页
文件大小: 0K
描述: IC ADC 16BIT SER 125HZ 10LFCSP
标准包装: 1,500
位数: 16
采样率(每秒): 125
数据接口: 串行,SPI?
转换器数目: 1
电压电源: 单电源
工作温度: -40°C ~ 105°C
安装类型: 表面贴装
封装/外壳: 10-WFDFN 裸露焊盘,CSP
供应商设备封装: 10-LFCSP-WD(3x3)
包装: 带卷 (TR)
输入数目和类型: 1 个差分,双极
Data Sheet
AD7171
Rev. A | Page 7 of 16
PIN CONFIGURATION AND FUNCTION DESCRIPTIONS
1
SCLK
2
DOUT/RDY
3
AIN(+)
4
AIN(–)
5
REFIN(+)
10 NC
NOTES
1. NC = NO CONNECT.
2. CONNECT EXPOSED PAD TO GROUND.
9 PDRST
8VDD
7GND
6REFIN(–)
AD7171
TOP VIEW
(Not to Scale)
08
41
7-
00
5
Figure 5. Pin Configuration
Table 5. Pin Function Descriptions
Pin No.
Mnemonic
Description
1
SCLK
Serial Clock Input. This serial clock input is for data transfers from the ADC. The SCLK has a Schmitt-triggered
input. The serial clock can be continuous with all data transmitted in a constant train of pulses. Alternatively, it
can be a noncontinuous clock with the information being transmitted from the ADC in smaller batches of data.
2
DOUT/RDY
Serial Data Output/Data Ready Output. DOUT/RDY serves a dual purpose. DOUT/RDY operates as a data ready
pin, going low to indicate the completion of a conversion. In addition, it functions as a serial data output pin to
access the data register of the ADC. Eight status bits accompany each data read. See Figure 13 for further details.
The DOUT/RDY falling edge can be used as an interrupt to a processor, indicating that new data is available. If
the data is not read after the conversion, the pin goes high before the next update occurs.
3
AIN(+)
Analog Input. AIN(+) is the positive terminal of the differential analog input pair AIN(+)/AIN().
4
AIN()
Analog Input. AIN() is the negative terminal of the dierential analog input pair AIN(+)/AIN().
5
REFIN(+)
Positive Reference Input. An external reference can be applied between REFIN(+) and REFIN(–). The nominal
reference voltage (REFIN(+) – REFIN()) is 5 V, but the part can function with a reference of 0.5 V to VDD.
6
REFIN()
Negative Reference Input.
7
GND
Ground Reference Point.
8
VDD
Supply Voltage, 2.7 V to 5.25 V.
9
PDRST
Power-Down/Reset. When this pin is low, the ADC is placed in power-down mode. All the logic on the chip is
reset and the DOUT/RDY pin is tristated. When PDRST is high, the ADC is taken out of power-down mode. The
on-chip clock powers up and settles, and the ADC continuously converts. The internal clock requires 1 ms
approximately to power up.
10
NC
This pin should be connected to GND for correct operation.
EPAD
Connect the exposed pad to ground.
相关PDF资料
PDF描述
AD7190BRUZ-REEL IC ADC 2CH 24BIT W/PGA 24TSSOP
AD7191BRUZ IC ADC 2CH 24B SD 24TSSOP
AD7192BRUZ IC ADC 24BIT 2CH W/PGA 24-TSSOP
AD7193BCPZ IC ADC 24BIT SPI 4.8KHZ 32LFCSP
AD7194BCPZ IC ADC 24BIT SPI 4.8K 32-LFCSP
相关代理商/技术参数
参数描述
AD7172-2BRUZ 功能描述:24 Bit Analog to Digital Converter 2, 4 Input 1 Sigma-Delta 24-TSSOP 制造商:analog devices inc. 系列:- 包装:管件 零件状态:有效 位数:24 采样率(每秒):31.25k 输入数:2,4 输入类型:差分,单端 数据接口:SPI,DSP 配置:MUX-ADC 无线电 - S/H:ADC:- A/D 转换器数:1 架构:三角积分 参考类型:外部, 内部 电压 - 电源,模拟:2 V ~ 5.5 V 电压 - 电源,数字:2 V ~ 5.5 V 特性:- 工作温度:-40°C ~ 105°C 封装/外壳:24-TSSOP(0.173",4.40mm 宽) 供应商器件封装:24-TSSOP 标准包装:62
AD7172-2BRUZ-RL 功能描述:24 Bit Analog to Digital Converter 2, 4 Input 1 Sigma-Delta 24-TSSOP 制造商:analog devices inc. 系列:- 包装:带卷(TR) 零件状态:有效 位数:24 采样率(每秒):31.25k 输入数:2,4 输入类型:差分,单端 数据接口:SPI,DSP 配置:MUX-ADC 无线电 - S/H:ADC:- A/D 转换器数:1 架构:三角积分 参考类型:外部, 内部 电压 - 电源,模拟:2 V ~ 5.5 V 电压 - 电源,数字:2 V ~ 5.5 V 特性:- 工作温度:-40°C ~ 105°C 封装/外壳:24-TSSOP(0.173",4.40mm 宽) 供应商器件封装:24-TSSOP 标准包装:2,500
AD7172-2BRUZ-RL7 功能描述:24 Bit Analog to Digital Converter 2, 4 Input 1 Sigma-Delta 24-TSSOP 制造商:analog devices inc. 系列:- 包装:带卷(TR) 零件状态:有效 位数:24 采样率(每秒):31.25k 输入数:2,4 输入类型:差分,单端 数据接口:SPI,DSP 配置:MUX-ADC 无线电 - S/H:ADC:- A/D 转换器数:1 架构:三角积分 参考类型:外部, 内部 电压 - 电源,模拟:2 V ~ 5.5 V 电压 - 电源,数字:2 V ~ 5.5 V 特性:- 工作温度:-40°C ~ 105°C 封装/外壳:24-TSSOP(0.173",4.40mm 宽) 供应商器件封装:24-TSSOP 标准包装:1,000
AD7172-4BCPZ 功能描述:24 Bit Analog to Digital Converter 4, 8 Input 1 Sigma-Delta 32-LFCSP-WQ (5x5) 制造商:analog devices inc. 系列:- 包装:托盘 零件状态:有效 位数:24 采样率(每秒):31.25k 输入数:4,8 输入类型:差分,单端 数据接口:SPI,DSP 配置:MUX-ADC 无线电 - S/H:ADC:- A/D 转换器数:1 架构:三角积分 参考类型:外部, 内部 电压 - 电源,模拟:2 V ~ 5.5 V 电压 - 电源,数字:2 V ~ 5.5 V 特性:- 工作温度:-40°C ~ 105°C 封装/外壳:32-WFQFN 裸露焊盘,CSP 供应商器件封装:32-LFCSP-WQ(5x5) 标准包装:1
AD7172-4BCPZ-RL 功能描述:24 Bit Analog to Digital Converter 4, 8 Input 1 Sigma-Delta 32-LFCSP-WQ (5x5) 制造商:analog devices inc. 系列:- 包装:带卷(TR) 零件状态:有效 位数:24 采样率(每秒):31.25k 输入数:4,8 输入类型:差分,单端 数据接口:SPI,DSP 配置:MUX-ADC 无线电 - S/H:ADC:- A/D 转换器数:1 架构:三角积分 参考类型:外部, 内部 电压 - 电源,模拟:2 V ~ 5.5 V 电压 - 电源,数字:2 V ~ 5.5 V 特性:- 工作温度:-40°C ~ 105°C 封装/外壳:32-WFQFN 裸露焊盘,CSP 供应商器件封装:32-LFCSP-WQ(5x5) 标准包装:5,000