AD5398: 120 mA, Current Sinking, 10-Bit, I2C DAC Data Sheet (Rev. C)12/1/2004456K
Features and Benefits
- 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.
- Lens autofocus
- Image stabilization
- Optical zoom
- 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
- Heater control
- Fan control
- Cooler (Peltier) control
- Solenoid control
- Valve control
- Linear actuator control
- Light control
- Current loop control
Product Lifecycle Production
At least one model within this product family is in production and available for purchase. The product is appropriate for new designs but newer alternatives may exist.
Documentation & Resources
AN-912: Driving a Center-Tapped Transformer with a Balanced Current-Output DAC (Rev. 0)5/21/2007246 kB
AN-320B: CMOS Multiplying DACs and Op Amps Combine to Build Programmable Gain Amplifiers, Part 210/15/2004989 kB
AN-320A: CMOS Multiplying DACs and Op Amps Combine to Build Programmable Gain Amplifier, Part 110/15/20041295 kB
Camera Phones Nip at Standalone Digital Camera Market2/23/2009
Lens Drivers Focus on Performance in High-Resolution Camera Modules11/1/2006 Analog Dialogue
Software & Systems Requirements
ADI has always placed the highest emphasis on delivering products that meet the maximum levels of quality and reliability. We achieve this by incorporating quality and reliability checks in every scope of product and process design, and in the manufacturing process as well. "Zero defects" for shipped products is always our goal.
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