Analog Devices AD5398 Product Info

• 120 mA current sink
• Available in 8-lead LFCSP package
• 2-wire (I²C-compatible) serial interface
• 10-bit resolution
• Integrated current sense resistor
• 2.7 V to 5.5 V power supply
• Guaranteed monotonic over all codes
• Power-down to 0.5 µA typical
• Internal reference
• Ultralow noise preamplifier
• Power-down function
• Power-on reset

The AD5398 is a single 10-bit DAC with 120 mA output current sink capability. It features an internal reference and operates from a single 2.7 V to 5.5 V supply. The DAC is controlled via a 2-wire (I²C-compatible) serial interface that operates at clock rates up to 400 kHz.

The AD5398 incorporates a power-on reset circuit, which ensures that the DAC output powers up to 0 V and remains there until a valid write takes place. It has a power-down feature that reduces the current consumption of the device to 1 µA maximum. The AD5398 is designed for autofocus, image stabilization, and optical zoom applications in camera phones, digital still cameras, and camcorders.

The AD5398 also has many industrial applications, such as controlling temperature, light, and movement, over the range −40°C to +85°C without derating.

The I²C address range for the AD5398 is 0x18 to 0x1F inclusive.

Consumer Applications

• Lens autofocus
• Image stabilization
• Optical zoom
• Shutters
• Iris/exposure
• Neutral density (ND) filters
• Lens covers
• Camera phones
• Digital still cameras
• Camera modules
• Digital video cameras/camcorders
• Camera-enabled devices
• Security cameras
• Web/PC cameras

Industrial Applications

• Heater control
• Fan control
• Cooler (Peltier) control
• Solenoid control
• Valve control
• Linear actuator control
• Light control
• Current loop control