Overview
The AD5398ABCBZ-REEL7, produced by Analog Devices Inc., is a fully integrated 10-bit digital-to-analog converter (DAC) designed for various applications requiring precise current output. This component is particularly suited for driving voice coil actuators in consumer and industrial settings. It features a current output capability of up to 120 mA, making it ideal for functions such as autofocus, image stabilization, and optical zoom in camera phones, digital still cameras, and camcorders. Additionally, it has industrial applications including temperature, light, and movement control.
Key Specifications
| Parameter | Min | Typ | Max | Unit | Test Conditions/Comments |
|---|---|---|---|---|---|
| Output Current Settling Time | - | - | 250 µs | - | VDD = 5 V, RL = 25 Ω, LL = 680 µH (¼ scale to ¾ scale change) |
| Slew Rate | - | - | 0.3 mA/µs | - | - |
| Major Code Change Glitch Impulse | - | - | 0.15 nA-s | - | 1 LSB change around major carry |
| Digital Feedthrough | - | - | 0.06 nA-s | - | 1 LSB change |
| Temperature Range | -40°C | - | +85°C | - | B Version |
| Power Consumption (Power-Down) | - | - | 1 µA | - | Maximum |
| I2C Address Range | 0x18 | - | 0x1F | - | Inclusive |
Key Features
- 10-bit current output DAC with up to 120 mA output current sink capability.
- Power-on reset circuit ensuring DAC output powers up to 0 V.
- Power-down feature reducing current consumption to 1 µA maximum.
- I2C serial interface with address range from 0x18 to 0x1F.
- Operating temperature range from -40°C to +85°C without derating.
- Integrated input filtering on SCL and SDA inputs to suppress noise spikes.
Applications
The AD5398ABCBZ-REEL7 is widely used in various consumer and industrial applications. In consumer electronics, it is commonly found in camera phones, digital still cameras, and camcorders for functions such as autofocus, image stabilization, and optical zoom. In industrial settings, it is used for controlling temperature, light, and movement.
Q & A
- What is the primary function of the AD5398ABCBZ-REEL7?
The AD5398ABCBZ-REEL7 is a 10-bit digital-to-analog converter (DAC) designed to drive voice coil actuators in various applications. - What is the maximum output current of the AD5398ABCBZ-REEL7?
The maximum output current of the AD5398ABCBZ-REEL7 is up to 120 mA. - What is the temperature range for the AD5398ABCBZ-REEL7?
The operating temperature range for the AD5398ABCBZ-REEL7 is from -40°C to +85°C without derating. - What interface does the AD5398ABCBZ-REEL7 use for communication?
The AD5398ABCBZ-REEL7 uses an I2C serial interface for communication. - What is the power consumption in power-down mode?
The power consumption in power-down mode is reduced to a maximum of 1 µA. - What are some common applications of the AD5398ABCBZ-REEL7?
Common applications include autofocus, image stabilization, and optical zoom in camera phones, digital still cameras, and camcorders, as well as industrial applications such as temperature, light, and movement control. - How does the power-on reset circuit function?
The power-on reset circuit ensures that the DAC output powers up to 0 V and remains there until a valid write takes place. - What is the purpose of the input filtering on SCL and SDA inputs?
The input filtering on SCL and SDA inputs suppresses noise spikes that are less than 50 ns. - What is the slew rate of the AD5398ABCBZ-REEL7?
The slew rate of the AD5398ABCBZ-REEL7 is 0.3 mA/µs. - What is the I2C address range for the AD5398ABCBZ-REEL7?
The I2C address range for the AD5398ABCBZ-REEL7 is from 0x18 to 0x1F inclusive.
