參數(shù)資料
型號(hào)： MAXQ7665BATM+
廠(chǎng)商： Maxim Integrated Products
文件頁(yè)數(shù)： 13/47頁(yè)
文件大小： 0K
描述： IC MCU-BASED DAS 16BIT 48-TQFN
標(biāo)準(zhǔn)包裝： 43
系列： MAXQ®
核心處理器： RISC
芯體尺寸： 16-位
速度： 8MHz
連通性： CAN，LIN，UART/USART
外圍設(shè)備： 欠壓檢測(cè)/復(fù)位，POR，PWM，WDT
輸入/輸出數(shù)： 8
程序存儲(chǔ)器容量： 64KB（32K x 16）
程序存儲(chǔ)器類(lèi)型： 閃存
RAM 容量： 256 x 16
電壓 - 電源 (Vcc/Vdd)： 2.7 V ~ 5.25 V
數(shù)據(jù)轉(zhuǎn)換器： A/D 8x12b，D/A 1x12b
振蕩器型： 內(nèi)部
工作溫度： -40°C ~ 125°C
封裝/外殼： 48-TQFN 裸露焊盤(pán)
包裝： 管件
The MAXQ7665A–MAXQ7665D ADC uses a fully differ-
ential SAR conversion technique and an on-chip T/H
block to convert temperature and voltage signals into a
12-bit digital result. Differential configurations are sup-
ported using an analog input channel MUX that sup-
ports eight differential channels.
The differential analog inputs are selected from the fol-
lowing pairs: AIN0/AIN1, AIN2/AIN3, AIN4/AIN5,
AIN6/AIN7, AIN8/AIN9, AIN10/AIN11, AIN12/AIN13,
and AIN14/AIN15.
Remote temperature-sensor configuration in differential
mode uses analog input channel pairs AIN2/AIN3 and
AIN0/AIN1. In single-ended remote temperature-sensor
configuration, only channels AIN2 and AIN0 are used.
Internal temperature-sensor configuration measures
local die temperature and does not use any analog
input channel.
There are four ways to control the ADC conversion timing:
1) Software register bit control
2) Continuous conversion
3) Internal timers (T0, T1, or T2)
4) External input through pin ADCCNV
Refer to the
MAXQ7665/MAXQ7666 User’s Guide for
more detailed information on the ADC and MUX.
12-Bit Digital-to-Analog Converter (DAC)
The MAXQ7665A–MAXQ7665D contain a 12-bit voltage-
output DAC with its own output buffer. The data path to
the DAC is double buffered and the output register can
be updated using the DACLOAD digital input. Refer to
the
MAXQ7665/MAXQ7666 User’s Guide for detailed
programming information. The DAC also supports a
square-wave-output toggle mode with precise ampli-
tude control for applications that require pulse-ampli-
tude modulation (PAM) and/or pulse-width modulation
(PWM) signals. See Figure 2 for a simplified block dia-
gram of the DAC.
The DAC output buffer is in a voltage follower configu-
ration (gain of 1V/V from REFDAC). The buffer can be
disabled when not in use. When the buffer is disabled,
the output is connected internally to AGND through a
100k resistor. The reference input REFDAC accepts
an input voltage of less than or equal to AVDD for a
maximum output swing of 0V to AVDD.
Temperature Sensor
The C measures temperature by using the on-chip
ADC and a ROM-based tempConv subroutine. Use the
tempConv subroutine to initiate a measurement (refer to
the
MAXQ7665/MAXQ7666 User’s Guide for detailed
information). The device supports conversions of two
external and one on-chip (internal) temperature sen-
sors. The external temperature sensor is typically a
diode-connected small-signal transistor, connected
between two analog inputs (differential) or one analog
input and AGND (single-ended). Figures 3 and 4 illus-
trate these two configurations.
MAXQ7665A–MAXQ7665D
16-Bit RISC Microcontroller-Based
Smart Data-Acquisition Systems
20
_______________________________________________________________________________________
REFDAC
DACE
R
DAC INPUT
REGISTER
P0.5/DACLOAD
DACOUT
DAC OUTPUT
REGISTER
12-BIT DAC
DAC LOAD
CONTROL
MAXQ7665A–MAXQ7665D
Figure 2. Simplified DAC Diagram
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
MAXQ7665BATM+ 功能描述:16位微控制器 - MCU Integrated Circuits (ICs) RoHS:否 制造商:Texas Instruments 核心:RISC 處理器系列:MSP430FR572x 數(shù)據(jù)總線(xiàn)寬度:16 bit 最大時(shí)鐘頻率:24 MHz 程序存儲(chǔ)器大小:8 KB 數(shù)據(jù) RAM 大小:1 KB 片上 ADC:Yes 工作電源電壓:2 V to 3.6 V 工作溫度范圍:- 40 C to + 85 C 封裝 / 箱體:VQFN-40 安裝風(fēng)格:SMD/SMT
MAXQ7665BATM+T 功能描述:16位微控制器 - MCU Integrated Circuits (ICs) RoHS:否 制造商:Texas Instruments 核心:RISC 處理器系列:MSP430FR572x 數(shù)據(jù)總線(xiàn)寬度:16 bit 最大時(shí)鐘頻率:24 MHz 程序存儲(chǔ)器大小:8 KB 數(shù)據(jù) RAM 大小:1 KB 片上 ADC:Yes 工作電源電壓:2 V to 3.6 V 工作溫度范圍:- 40 C to + 85 C 封裝 / 箱體:VQFN-40 安裝風(fēng)格:SMD/SMT
MAXQ7665C 制造商:MAXIM 制造商全稱(chēng):Maxim Integrated Products 功能描述:16-Bit RISC Microcontroller-Based Smart Data-Acquisition Systems
MAXQ7665CATM+ 制造商:MAXIM 制造商全稱(chēng):Maxim Integrated Products 功能描述:16-Bit RISC Microcontroller-Based Smart Data-Acquisition Systems
MAXQ7665D 制造商:MAXIM 制造商全稱(chēng):Maxim Integrated Products 功能描述:16-Bit RISC Microcontroller-Based Smart Data-Acquisition Systems
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