Arduino library for the LTC2625 – an 8-channel, 12-bit I²C Digital-to-Analog Converter (DAC) from Analog Devices / Linear Technology.

• Supports all LTC2625 commands:
  • Write (load input register)
  • Update (Power-Up) (transfer to DAC register)
  • Write + Update (n) (single transaction per channel)
  • Write (n) + Update ALL
  • Power-Down (per channel or ALL)
• Handles ALL channels or individual channels.
• Masked array write for multiple channels.
• Type-safe array interface for 8 channels.
• Compatible with any Arduino board supporting Wire (I²C).

Arduino IDE:

• Library Manager: Search for LTC2625.
• Manual: Download ZIP and use Sketch → Include Library → Add .ZIP Library.

Initialize the Wire library, create an LTC2625 object, call begin() to set all channels to zero, then use write_n_update() to set a channel to mid-scale. For example, set channel A to 0x800 after initialization.

Constructor: LTC2625(uint8_t deviceAddress = 0x10, TwoWire* wire = &Wire)

Core Methods:

• begin(uint16_t value = 0x000)
• isConnected()
• setAddress(uint8_t deviceAddress)
• getAddress() const
• write(uint8_t channel, uint16_t value)
• update(uint8_t channel)
• write_one_n_update_all(uint8_t channel, uint16_t value)
• write_n_update(uint8_t channel, uint16_t value)
• power_down(uint8_t channel)
• manual(uint8_t cmd, uint8_t channel, uint16_t value)

Array Methods:

• write_array(uint16_t (&array)[8], uint8_t mask = 0xFF)
• write_array(uint16_t (&array)[8])

LTC2625_DAC_A ... LTC2625_DAC_H (0x00 ... 0x07) LTC2625_DAC_ALL (0x0F)

• Default: 0x10 (CA2..CA0 = GND)
• Broadcast: 0x73 (updates all LTC2625 devices on the bus)

MIT License. See LICENSE for details.