參數(shù)資料
型號(hào)： MAXQ7666BATM+
廠商： MAXIM INTEGRATED PRODUCTS INC
元件分類： 微控制器/微處理器
英文描述： RISC MICROCONTROLLER, QCC48
封裝： 7 X 7 MM, ROHS COMPLAINT, TQFN-48
文件頁數(shù)： 15/49頁
文件大小： 2130K
代理商： MAXQ7666BATM+
MAXQ7666
16-Bit, RISC, Microcontroller-Based,
Smart Data-Acquisition System
22
_______________________________________________________________________________________
The MAXQ7666 ADC converts temperature and voltage
signals into a 12-bit digital result using a fully differen-
tial SAR conversion technique and an on-chip T/H
block. An analog input channel mux supports 8 differ-
ential channels. The differential analog inputs are
selected from the following pairs: AIN0/AIN1,
AIN2/AIN3, AIN4/AIN5, AIN6/AIN7, AIN8/AIN9,
AIN10/AIN11, AIN12/AIN13, and AIN14/AIN15.
External temperature-sensor configuration in differential
mode uses analog input channel pairs AIN2/AIN3 and
AIN0/AIN1. Use AIN0 and AIN2 in single-ended external
temperature-sensor configuration. Internal temperature-
sensor configuration measures internal 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 MAXQ7666 contains a 12-bit voltage-output DAC
with an output buffer. The data path to the DAC is dou-
ble buffered. Update the DAC output register using the
DACLOAD digital input or software. Refer to the
MAXQ7665/MAXQ7666 User’s Guide for detailed pro-
gramming 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 configured as a voltage fol-
lower (gain of 1V/V from REFDAC). Disable the buffer
using software. When the buffer is disabled, the output
is connected internally to AGND through a 100k
Ω resis-
tor. The reference input REFDAC accepts an input volt-
age of less than or equal to AVDD for a maximum output
swing of 0V to AVDD.
Temperature Sensor
The internal ADC and a ROM-based tempConv subrou-
tine measure temperature. Use the tempConv subrou-
tine to initiate a measurement (refer to the
MAXQ7665/
MAXQ7666 User’s Guide for detailed information). The
device supports conversions of two external and one
internal temperature sensor. The external temperature
sensor is typically a diode-connected small-signal tran-
sistor, connected between two analog inputs (differen-
tial) or one analog input and AGND (single-ended).
Figures 3 and 4 illustrate these two configurations.
REFDAC
DACE
R
DAC INPUT
REGISTER
P0.5/DACLOAD
DACOUT
AGND
DAC OUTPUT
REGISTER
12-BIT DAC
DAC LOAD
CONTROL
MAXQ7666
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
MAXQ7666BATM+ 功能描述:16位微控制器 - MCU RoHS:否 制造商:Texas Instruments 核心:RISC 處理器系列:MSP430FR572x 數(shù)據(jù)總線寬度: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
MAXQ7666BATM+T 功能描述:16位微控制器 - MCU RoHS:否 制造商:Texas Instruments 核心:RISC 處理器系列:MSP430FR572x 數(shù)據(jù)總線寬度: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
MAXQ7667 制造商:MAXIM 制造商全稱:Maxim Integrated Products 功能描述:16-Bit, RISC, Microcontroller-Based, Ultrasonic Distance-Measuring System
MAXQ7667AACM/V+ 功能描述:16位微控制器 - MCU 16-Bit RISC MCU-Bsd Ultrasonic DMS RoHS:否 制造商:Texas Instruments 核心:RISC 處理器系列:MSP430FR572x 數(shù)據(jù)總線寬度: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
MAXQ7667AACM/V+T 功能描述:16位微控制器 - MCU 16-Bit RISC MCU-Bsd Ultrasonic DMS RoHS:否 制造商:Texas Instruments 核心:RISC 處理器系列:MSP430FR572x 數(shù)據(jù)總線寬度: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
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