AD5821: 120 mA, Current Sinking, 10-Bit, I2C® DAC
The AD5821 is a single 10-bit digital-to-analog converter 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 ...More
AD5821: 120 mA, Current Sinking, 10-Bit, I2C® DAC
Product Description
The AD5821 is a single 10-bit digital-to-analog converter 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 AD5821 incorporates a power-on reset circuit that 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 AD5821 is designed for autofocus, image stabilization, and optical zoom applications in camera phones, digital still cameras, and camcorders.
The AD5821 also has many industrial applications, such as controlling temperature, light, and movement, over the range of −40°C to +85°C without derating.
The I2C address for the AD5821 is 0x18.
Consumer Applications
Industrial Applications
- Data Sheet Rev 0, 02/2007 (pdf 500kB)
- (About Data Sheets)
Quick Links
- Lead(Pb) - Free Data
- Product Highlights
- Application Notes (pdf 246kB)
Features
- 120 mA current sink
- Available in 3 × 3 array WLCSP package
- 2-wire (I2C-compatible) 1.8 V 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
Diagrams
- Enlarge
- Other Diagrams
- Symbols and Footprints
Functional Block Diagram for AD5821
120 mA, Current Sinking, 10-Bit, I2C® DAC
Other Diagrams for AD5821
120 mA, Current Sinking, 10-Bit, I2C® DAC
AD5821 Pin Configuration
Functional Block Diagram for AD5821
Specifications
| Resolution (Bits) | 10bit |
| DAC Update Rate | n/a |
| DAC Settling Time | 250µs |
| # DAC Outputs | 1 |
| DAC Type | Current Out |
| DAC Input Format | I2C/Ser 2-wire,Ser |
| Output FSR | (3-120mA) |
| Ref Int/Ext | Int |
| Supply Vnom | Single(+2.7 to +5.5),Single(+2.7),Single(+3),Single(+3.3),Single(+5) |
| Pwr Diss (Max) | 20mW |
| Package | CSP |
