ZHCSCC6D
May 2013 – March 2018
ADS7250
,
ADS7850
,
ADS8350
PRODUCTION DATA.
1
特性
2
应用范围
3
说明
功能方框图
4
修订历史记录
5
Pin Configuration and Functions
Pin Functions
6
Specifications
6.1
Absolute Maximum Ratings
6.2
ESD Ratings
6.3
Recommended Operating Conditions
6.4
Thermal Information
6.5
Electrical Characteristics: All Devices
6.6
Electrical Characteristics: ADS7250
6.7
Electrical Characteristics: ADS7850
6.8
Electrical Characteristics: ADS8350
6.9
Timing Requirements
6.10
Switching Characteristics
6.11
Typical Characteristics: ADS7250
6.12
Typical Characteristics: ADS7850
6.13
Typical Characteristics: ADS8350
6.14
Typical Characteristics: All Devices
7
Detailed Description
7.1
Overview
7.2
Functional Block Diagram
7.3
Feature Description
7.3.1
Reference
7.3.2
Analog Input
7.3.2.1
Analog Input Full-Scale Range
7.3.3
ADC Transfer Function
7.4
Device Functional Modes
7.4.1
Serial Interface
7.4.2
Short-Cycling, Frame Abort, and Reconversion Feature
8
Application and Implementation
8.1
Application Information
8.2
Typical Applications
8.2.1
DAQ Circuit: Maximum SINAD for a 10-kHz Input Signal at 750-kSPS Throughput
8.2.1.1
Design Requirements
8.2.1.2
Detailed Design Procedure
8.2.1.2.1
ADC Reference Driver
8.2.1.2.2
ADC Input Driver
8.2.1.2.2.1
Input Amplifier Selection
8.2.1.2.2.2
Antialiasing Filter
8.2.1.3
Application Curve
8.2.2
DAQ Circuit: Maximum SINAD for a 100-kHz Input Signal at 750-kSPS Throughput
8.2.2.1
Design Requirements
8.2.2.2
Detailed Design Procedure
8.2.2.2.1
ADC Reference Driver
8.2.2.2.2
ADC Input Driver
8.2.2.3
Application Curve
9
Power Supply Recommendations
10
Layout
10.1
Layout Guidelines
10.2
Layout Example
11
器件和文档支持
11.1
文档支持
11.1.1
相关文档
11.2
相关链接
11.3
接收文档更新通知
11.4
社区资源
11.5
商标
11.6
静电放电警告
11.7
Glossary
12
机械、封装和可订购信息
封装选项
机械数据 (封装 | 引脚)
RTE|16
MPQF149D
散热焊盘机械数据 (封装 | 引脚)
RTE|16
QFND298F
订购信息
zhcscc6d_oa
zhcscc6d_pm
6.11
Typical Characteristics: ADS7250
at T
A
= 25°C, AVDD = 5 V, DVDD = 3.3 V, V
REF
= 2.5 V, and f
DATA
= 750 kSPS (unless otherwise noted)
Figure 2.
Typical DNL
Figure 4.
DNL vs Device Temperature
Figure 6.
Typical FFT at 2-kHz Input
Figure 8.
SNR vs Input Frequency
Figure 10.
SINAD vs Input Frequency
Figure 12.
THD vs Device Temperature
Figure 14.
Offset Error vs Device Temperature
Figure 16.
DC Histogram
Figure 3.
Typical INL
Figure 5.
INL vs Device Temperature
Figure 7.
Typical FFT at 250-kHz Input
Figure 9.
THD vs Input Frequency
Figure 11.
SNR vs Device Temperature
Figure 13.
SINAD vs Device Temperature
Figure 15.
Gain Error vs Device Temperature