ZHCS587H July 2011 – January 2016 LMP90077 , LMP90078 , LMP90079 , LMP90080
PRODUCTION DATA.
- 1 特性
- 2 應用
- 3 說明
- 4 修訂歷史記錄
- 5 說明 （續）
- 6 Device Comparison Table
- 7 Pin Configuration and Functions
-
8 Specifications
- 8.1 Absolute Maximum Ratings
- 8.2 ESD Ratings
- 8.3 Recommended Operating Conditions
- 8.4 Thermal Information
- 8.5 Electrical Characteristics
- 8.6 Timing Requirements
- 8.7 Timing Requirements - CSB Timing
- 8.8 Timing Requirements - SCLK and SDI Timing
- 8.9 Timing Requirements - SDO Timing With DOD1
- 8.10 Timing Requirements - SDO Timing with DOD2
- 8.11 Timing Requirements - SDO and DRDYB Timing
- 8.12 Typical Characteristics
-
9 Detailed Description
- 9.1 Overview
- 9.2 Functional Block Diagram
- 9.3
Feature Description
- 9.3.1 Calibration
- 9.3.2 True Continuous Background Calibration
- 9.3.3 Continuous Background Sensor Diagnostics
- 9.3.4 Flexible Input MUX Channels
- 9.3.5 Programmable Gain Amplifiers (FGA & PGA)
- 9.3.6 Excitation Current Sources (IB1 & IB2) - LMP90080/LMP90078
- 9.3.7 Signal Path
- 9.4 Device Functional Modes
- 9.5
Programming
- 9.5.1 Serial Digital Interface
- 9.5.2 RESET and RESTART
- 9.5.3 Register Read/Write Examples
- 9.5.4 Streaming Examples
- 9.6 Register Maps
- 10Application and Implementation
- 11Power Supply Recommendations
- 12Layout
- 13器件和文檔支持
- 14機械、封裝和可訂購信息
11 Power Supply Recommendations
The device can be placed in Active, Power-Down, or Stand-By state.
In Power-Down, the ADC is not converting data, contents of the registers are unaffected, and there is a drastic power reduction. In Stand-By, the ADC is not converting data, but the power is only slightly reduced so that the device can quickly transition into the active state if desired.
These states can be selected using the PWRCN register. When written, PWRCN brings the device into the Active, Power-Down, or Stand-By state. When read, PWRCN indicates the state of the device.
The read value would confirm the write value after a small latency (approximately 15 µs with the internal CLK). It may be appropriate to wait for this latency to confirm the state change. Requests not adhering to this latency requirement may be rejected.
It is not possible to make a direct transition from the power-down state to the stand-by state. This state diagram is shown below.
Figure 79. Active, Power-Down, Stand-By State Diagram