ADS1115 四通道16-bit ADC 類比轉數位模組 可四組單端點或2組差分量測 具可變增益放大

描述

ADS1115 四通道16-bit ADC 類比轉數位模組 可四組單端點或2組差分量測 具可變增益放大

ADS1115 四通道16-bit ADC 類比轉數位模組 是由 TI 德儀所推出的高解析度類比轉數位IC，4通道，最高860次/秒的取樣率，低耗電，寬電壓範圍，很適合搭配類比感測器使用。

業界體積最小的 16 位元 ADC

全新 ADS1115 系列是業界體積最小的 16 位元 ADC，其超小型無鉛 QFN 封裝的體積只有 2.0 x 1.5 x 0.4 mm 而已。ADS1115 系列不僅在節省系統空間方面有無與倫比的表現，更具有各項產品系列選擇以供擴充整合。ADS1115 系列的設計兼顧精準性、能源效率和建置容易性等方面之考量，因此能以最高達 860 SPS 的可程序化資料速率執行轉換，電源供應器的電流消耗量僅 150 µA (典型值)，操作電壓最低達 2 V。本商品提供Arduino範例，歡迎直接從相關連結下載函式庫。

商品規格：

• 輸入電壓：2 ~ 5.5V
• 通訊方式：IIC
• 取樣頻率：8 ~ 860 次/秒
• 解析度：16 bits

ADS1115 16 Bit 16 Byte 4 Channel I2C IIC Analog-to-Digital ADC PGA Converte

• High precision ADS1115 16 Bit 4 Channel Analog-to-Digital ADC Converter
• An easy to use I2C ADC Converter, with Programmable Gain Amplifier
• Especially a good tool for Raspberry Pi that doesn’t come with analog GPIO pins
• Wide voltage supply range: 2.0V to 5.5V, operate in a comparator mode which is helpful for maintaining accuracy
• Single-Shot Mode: Auto Shut Down; Programmable data rate: 8sps-860sps

For microcontrollers without an analog-to-digital converter or when you want a higher-precision ADC, the ADS1115 provides 16-bit precision at 3300 samples/second over I2C. The chip can be configured as 4 single-ended input channels, or two differential channels. As a nice bonus, it even includes a programmable gain amplifier, up to x16, to help boost up smaller single/differential signals to the full range. The chip’s fairly small so it comes on a breakout board with ferrites to keep the AVDD and AGND quiet. Interfacing is done via I2C. Simply connect GND to ground, VDD to your logic power supply, and SCL/SDA to your microcontroller’s I2C port and run the example code to start reading data.

Parameters: 
ADC Bit rate: 16 Bit
Interface Type: I2C
Channels: 4 Channel AN0 AN1 AN2 AN3
Input voltage: 2.0v-5.5v
Channel input voltage : 0-VDD
Continuous Mode: Only 150μA
Single-Shot Mode: Auto Shut Down
Programmable data rate: 8sps-860sps
Input range programmed control, 7 types input ranges:
-0.256V ~ + 0.256V, -0.512V ~ + 0.512V, -1.024V ~ + 1.024V, -2.048V ~ + 2.048V, -4.096V ~ + 4.096 V, -6.144V ~ + 6.144V I2C 7-bit addresses between 0x48-0x4B

Package Included: 
1* ADS1115 16 Bit 4 Channel Analog-to-Digital ADC Converter
1* Pin Header