PI-16ADC

Pi-16ADC is a HAT or board designed for a Raspberry Pi. Pi-16ADC adds sixteen (16) Analog to Digital Converter (ADC) ports. These ports are ideally suited to collect data from analog sensors or other analog devices several times a second.

• Data resolution for all 16 ports is 16 bits
• Sample code in Python with a detailed user manual makes it easy to connect board to a Raspberry Pi.
• Pi-16ADC adds analog capability to a Raspberry Pi.
• All communications are over an I2C address if needed.
• Analog connections are solder-less and additional solder points are provided per channel along with the solderless connections.
• Raspberry Pi Models supported: The board includes a 40-pin header. Any Raspberry Pi with a 40-pin header is supported.
• These are Pi 2, Pi 3, Pi Zero etc. Older Raspberry Pi models with a 26-pin header are not supported.
• Input Power Source: 5V, sourced from Raspberry Pi header, pin number 2.
• Power: 0.8mW or less. Typical power is 0.5mW.
• ADC Chip used: Linear Technologies™ LTC2497™ ADC.
• Number of Analog Channels: Sixteen single-ended or eight adjacent differential channels, software selectable.
• Maximum analog Voltage: 2.5V p-p. More than 2.5V indicates an over-voltage condition. Differential channels - maximum voltage is from -2.5V to +2.5V.
• Maximum DC Voltage: Maximum +5V.
• Resolution: 16 bits or appx 39 micro-volts per bit.
• Conversion Rate: Maximum 17 samples per second for all channels. Recommended scan rate is 1-2 samples per second per channel.
• Calibration: Auto calibration on power reset.
• Interface: Interfaces to Raspberry Pi over the I2C bus at 100 kHz.
• I2C address: Selectable by jumpers labelled A0, A1 and A2. Maximum of 27 addresses.
• I2C Bus Speed: 100kHz (default). Other speeds are also supported.
• Other: 50/60 Hz noise rejection.
• Stacking: Pi-16ADC boards can be stacked together with other HATs, e.g. Pi-EzConnect.