参数资料
型号: 78M6612-IMR/F
厂商: Maxim Integrated
文件页数: 9/46页
文件大小: 0K
描述: IC POWER MEASUREMENT AC 68-QFN
产品培训模块: Lead (SnPb) Finish for COTS
Obsolescence Mitigation Program
标准包装: 2,500
系列: *
DS_6612_001
78M6612 Data Sheet
1.2.2
A/D Converter (ADC)
A single delta-sigma A/D converter digitizes the voltage and current inputs to the 78M6612. The
resolution of the ADC is configurable to either 21 or 22 bit. At the end of each ADC conversion, the FIR
filter output data is stored into the CE RAM location.
1.2.3
FIR Filter
The finite impulse response filter is an integral part of the ADC and it is optimized for use with the
multiplexer. The purpose of the FIR filter is to decimate the ADC output to the desired resolution. At the
end of each ADC conversion, the output data is stored into the CE RAM location determined by the
multiplexer selection. FIR data is stored LSB justified, but shifted left by nine bits.
1.2.4
Voltage References
The device includes an on-chip precision bandgap voltage reference that incorporates auto-zero
techniques. The reference is trimmed to minimize errors caused by component mismatch and drift. The
result is a voltage output with a predictable temperature coefficient.
1.2.5
Temperature Sensor
The 78M6612 includes an on-chip temperature sensor implemented as a bandgap reference. It is used
to determine the die temperature The MPU reads the temperature sensor output during alternate
multiplexer cycles. The primary use of the temperature data is to determine the magnitude of
compensation required to offset the thermal drift in the system (see Section 3.4 Temperature
1.2.6
Battery Monitor
The 78M6618 also has the ability to measure battery voltage by the ADC during alternative multiplexer
frames. When set, an on-chip 45 k ? load resistor is applied to the battery and a scaled fraction of the
battery voltage is applied to the ADC input. Battery operating modes are not supported in all firmware
libraries. Contact Maxim support for more information.
Rev 2
9
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参数描述
78M6612-M/F/P2 功能描述:计量片上系统 - SoC 78M6612-M/F/P2 RoHS:否 制造商:Maxim Integrated 核心:80515 MPU 处理器系列:71M6511 类型:Metering SoC 最大时钟频率:70 Hz 程序存储器大小:64 KB 数据 RAM 大小:7 KB 接口类型:UART 可编程输入/输出端数量:12 片上 ADC: 安装风格:SMD/SMT 封装 / 箱体:LQFP-64 封装:Reel
78M6612-MR/F/P2 功能描述:计量片上系统 - SoC 78M6612-MR/F/P2 RoHS:否 制造商:Maxim Integrated 核心:80515 MPU 处理器系列:71M6511 类型:Metering SoC 最大时钟频率:70 Hz 程序存储器大小:64 KB 数据 RAM 大小:7 KB 接口类型:UART 可编程输入/输出端数量:12 片上 ADC: 安装风格:SMD/SMT 封装 / 箱体:LQFP-64 封装:Reel
78M6612-SOCKET64 功能描述:计量片上系统 - SoC 78M6612 64PIN LQFP PROGRAM BOARD RoHS:否 制造商:Maxim Integrated 核心:80515 MPU 处理器系列:71M6511 类型:Metering SoC 最大时钟频率:70 Hz 程序存储器大小:64 KB 数据 RAM 大小:7 KB 接口类型:UART 可编程输入/输出端数量:12 片上 ADC: 安装风格:SMD/SMT 封装 / 箱体:LQFP-64 封装:Reel
78M6612-SOCKET68 功能描述:计量片上系统 - SoC 78M6612 68PIN QFN PROGRAM BOARD RoHS:否 制造商:Maxim Integrated 核心:80515 MPU 处理器系列:71M6511 类型:Metering SoC 最大时钟频率:70 Hz 程序存储器大小:64 KB 数据 RAM 大小:7 KB 接口类型:UART 可编程输入/输出端数量:12 片上 ADC: 安装风格:SMD/SMT 封装 / 箱体:LQFP-64 封装:Reel
78M6612SP-EVM-1 功能描述:开发板和工具包 - 8051 78M6612 Eval Kit RoHS:否 制造商:Silicon Labs 产品:Development Kits 工具用于评估:C8051F960, Si7005 核心: 接口类型:USB 工作电源电压: