EVAL-AD5666EB: Quad, 16 Bit D/A Converter with 10ppm/°C Max On-Chip Reference in 14-Lead TSSOP
The AD5666 is a low power, quad, 16-bit, buffered voltage-output DAC. The part operates from a single 2.7 V to 5.5 V supply and is guaranteed monotonic by design.
The AD5666 has an on-chip reference with an internal gain of 2. The AD5666-1 has a 1.25 V 5 ppm/°C reference, giving a full-scale output of 2.5 V; the AD5666-2 has a 2.5 V 5 ppm/°C reference, giving a full-scale output of 5 V. The on-board reference is off at power-up, allowing the use of an external reference. The internal reference is turned on by writing to the DAC.
The part incorporates a power-on reset circuit that ensures that the DAC output powers up to 0 V (POR pin low) or to midscale (POR pin high) and remains powered up at this level until a valid write takes place. The part contains a power-down feature that reduces the current consumption of the device to 400 nA at 5 V and provides software-selectable output loads while in power-down mode for any or all DAC channels.
The outputs of all DACs can be updated simultaneously using the LDAC function, with the added functionality of user-select-able DAC channels to simultaneously update. There is also an asynchronous CLR that clears all DACs to a software-selectable code-0 V, midscale, or full scale.
The AD5666 utilizes a versatile 3-wire serial interface that operates at clock rates of up to 50 MHz and is compatible with standard SPI®, QSPI™, MICROWIRE™, and DSP interface standards. The on-chip precision output amplifier enables rail-to-rail output swing.
产品聚焦
- Quad, 16-bit DAC.
- On-chip 1.25 V/2.5 V, 5 ppm/°C reference.
- Available in 14-lead TSSOP.
- Selectable power-on reset to 0 V or midscale.
- Power-down capability. When powered down, the DAC typically consumes 200 nA at 3 V and 400 nA at 5 V.
产品应用领域 Applications
- Process control
- Data acquisition systems
- Portable battery-powered instruments
- Digital gain and offset adjustment
- Programmable voltage and current sources
- Programmable attenuators
EVAL-AD5666EB 特点
- Low power quad 16-bit DAC
- 14-lead TSSOP
- On-chip 1.25 V/2.5 V, 5 ppm/°C reference
- Power down to 400 nA @ 5 V, 200 nA @ 3 V
- 2.7 V to 5.5 V power supply
- Guaranteed monotonic by design
- Power-on reset to zero scale or midscale
- 3 power-down functions
- Hardware LDAC with LDAC override function
- CLR function to programmable code
- SDO daisy-chaining option
- Rail-to-rail operation
EVAL-AD5666EB 功能框图
| 产品型号 | 产品状态 | 封装 | 引脚 | 温度范围 |
|---|---|---|---|---|
| AD5666ARUZ-2 | 量产 | 14 ld TSSOP | 14 | 工业 |
| AD5666ARUZ-2REEL7 | 量产 | 14 ld TSSOP | 14 | 工业 |
| AD5666BRUZ-1 | 量产 | 14 ld TSSOP | 14 | 工业 |
| AD5666BRUZ-1REEL7 | 量产 | 14 ld TSSOP | 14 | 工业 |
| AD5666BRUZ-2 | 量产 | 14 ld TSSOP | 14 | 工业 |
| AD5666BRUZ-2REEL7 | 量产 | 14 ld TSSOP | 14 | 工业 |
| EVAL-AD5666EB | 量产 | 评估板 | - | 待定 |
