ZHCSFU0B
December 2016 – March 2021
ADS8661
,
ADS8665
PRODUCTION DATA
1
特性
2
应用
3
说明
4
Revision History
5
Pin Configuration and 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
6.6
Timing Requirements: Conversion Cycle
6.7
Timing Requirements: Asynchronous Reset
6.8
Timing Requirements: SPI-Compatible Serial Interface
6.9
Timing Requirements: Source-Synchronous Serial Interface (External Clock)
6.10
Timing Requirements: Source-Synchronous Serial Interface (Internal Clock)
6.11
Timing Diagrams
6.12
Typical Characteristics
7
Detailed Description
7.1
Overview
7.2
Functional Block Diagram
7.3
Feature Description
7.3.1
Analog Input Structure
7.3.2
Analog Input Impedance
7.3.3
Input Protection Circuit
7.3.4
Programmable Gain Amplifier (PGA)
7.3.5
Second-Order, Low-Pass Filter (LPF)
7.3.6
ADC Driver
7.3.7
Reference
7.3.7.1
Internal Reference
7.3.7.2
External Reference
7.3.8
ADC Transfer Function
7.3.9
Alarm Features
7.3.9.1
Input Alarm
7.3.9.2
AVDD Alarm
7.4
Device Functional Modes
7.4.1
Host-to-Device Connection Topologies
7.4.1.1
Single Device: All multiSPI Options
7.4.1.2
Single Device: Standard SPI Interface
7.4.1.3
Multiple Devices: Daisy-Chain Topology
7.4.2
Device Operational Modes
7.4.2.1
RESET State
7.4.2.2
ACQ State
7.4.2.3
CONV State
7.5
Programming
7.5.1
Data Transfer Frame
7.5.2
Input Command Word and Register Write Operation
7.5.3
Output Data Word
7.5.4
Data Transfer Protocols
7.5.4.1
Protocols for Configuring the Device
7.5.4.2
Protocols for Reading From the Device
7.5.4.2.1
Legacy, SPI-Compatible (SYS-xy-S) Protocols with a Single SDO-x
7.5.4.2.2
Legacy, SPI-Compatible (SYS-xy-S) Protocols With Dual SDO-x
7.5.4.2.3
Source-Synchronous (SRC) Protocols
7.5.4.2.3.1
Output Clock Source Options
7.5.4.2.3.2
Output Bus Width Options
7.6
Register Maps
7.6.1
Device Configuration and Register Maps
7.6.1.1
DEVICE_ID_REG Register (address = 00h)
7.6.1.2
RST_PWRCTL_REG Register (address = 04h)
7.6.1.3
SDI_CTL_REG Register (address = 08h)
7.6.1.4
SDO_CTL_REG Register (address = 0Ch)
7.6.1.5
DATAOUT_CTL_REG Register (address = 10h)
7.6.1.6
RANGE_SEL_REG Register (address = 14h)
7.6.1.7
ALARM_REG Register (address = 20h)
7.6.1.8
ALARM_H_TH_REG Register (address = 24h)
7.6.1.9
ALARM_L_TH_REG Register (address = 28h)
8
Application and Implementation
8.1
Application Information
8.2
Typical Application
8.2.1
Design Requirements
8.2.2
Detailed Design Procedure
8.2.3
Application Curves
9
Power Supply Recommendations
9.1
Power Supply Decoupling
9.2
Power Saving
9.2.1
NAP Mode
9.2.2
Power-Down (PD) Mode
10
Layout
10.1
Layout Guidelines
10.2
Layout Example
11
Device and Documentation Support
11.1
Documentation Support
11.1.1
Related Documentation
11.2
接收文档更新通知
11.3
支持资源
11.4
Trademarks
11.5
静电放电警告
11.6
术语表
封装选项
机械数据 (封装 | 引脚)
PW|16
MPDS361A
散热焊盘机械数据 (封装 | 引脚)
订购信息
zhcsfu0b_oa
zhcsfu0b_pm
6.11
Timing Diagrams
Figure 6-1
Conversion Cycle Timing Diagram
Figure 6-2
Asynchronous Reset Timing Diagram
Figure 6-3
Standard SPI Interface Timing Diagram for CPHA = 0
Figure 6-4
Standard SPI Interface Timing Diagram for CPHA = 1
Figure 6-5
multiSPI Interface Timing Diagram for Dual SDO-x and CPHA = 0
Figure 6-6
multiSPI Interface Timing Diagram for Dual SDO-x and CPHA = 1
Figure 6-7
multiSPI Source-Synchronous External Clock Serial Interface Timing Diagram
Figure 6-8
multiSPI Source-Synchronous Internal Clock Serial Interface Timing Diagram
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