12-Bit ADC - 4 Channel with Progrmmable Gain Amplifier

 

 

 

 

 

 

 

 

貼心提醒

 

可連接樹莓派，並且接受 Python 程式控制

12 bits

 

 

產品特色

For microcontrollers without an analog-to-digital converter or when you want a higher-precision ADC, the ADS1015 provides 12-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. We like this ADC because it can run from 2V to 5V power/logic, can measure a large range of signals and its super easy to use. It is a great general purpose 12 bit converter.

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. The address can be changed to one of four options (see the datasheet table 5) so you can have up to 4 ADS1015's connected on a single 2-wire I2C bus for 16 single ended inputs.

To get you started, we have example code for both the Raspberry Pi (in our Adafruit Pi Python library) and Arduino (in our ADS1X15 Arduino library repository) 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. 

 

 

產品規格
 

WIDE SUPPLY RANGE: 2.0V to 5.5V

LOW CURRENT CONSUMPTION: Continuous Mode: Only 150µA Single-Shot Mode: Auto Shut-Down

PROGRAMMABLE DATA RATE: 128SPS to 3.3kSPS

INTERNAL LOW-DRIFT VOLTAGE REFERENCE

INTERNAL OSCILLATOR

INTERNAL PGA

I2C INTERFACE: Pin-Selectable Addresses

FOUR SINGLE-ENDED OR TWO DIFFERENTIAL INPUTS

PROGRAMMABLE COMPARATOR

 

 

 

 

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