AD5045BRUZ: Fully Accurate 14-Bit VOUT DAC SPI Interface 2.7 V to 5.5 V in a TSSOP
The AD5025/AD5045/AD5065 are low power, dual 12-/14-/16-bit buffered voltage output nanoDAC® DACs offering relative accuracy specifications of ±1 LSB INL with individual reference pins, and can operate from a single 4.5 V to 5.5 V supply. The AD5025/ AD5045/AD5065 also offer a differential accuracy specification of ±1 LSB. The parts use a versatile 3-wire, low power Schmitt trigger serial interface that operates at clock rates up to 50 MHz and is compatible with standard SPI®, QSPI™, MICROWIRE™, and DSP interface standards. The reference for the AD5025/ AD5045/AD5065 are supplied from an external pin and a reference buffer is provided on chip. The AD5025/AD5045/AD5065 incorporate a power-on reset circuit that ensures the DAC output powers up zero scale or midscale and remains there until a validwrite takes place to the device. The AD5025/AD5045/AD5065 contain a power-down feature that reduces the current consumption of the device to typically 400 nA at 5 V and provides software selectable output loads while in power-down mode. The parts are put into power-down mode over the serial interface. Total unadjusted error for the parts is <2.5 mV. The parts exhibit very low glitch on power-up. The outputs of all DACs can be updated simultaneously using the LDAC function, with the added functionality of user-selectable 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 parts also feature a power-down lockout pin, PDL, which can be used to prevent the DAC from entering power-down under any circumstances over the serial interface.
产品焦点 Product Highlights
- Dual channel available in 14-lead TSSOP package with individual Voltage reference pins.
- 12-/14-/-16 bit accurate, 1 LSB INL.
- Low glitch on power-up.
- High speed serial interface with clock speeds up to 50 MHz.
- Three power-down modes available to the user.
- Reset to known output voltage (zero scale or midscale).
- Power Down lockout capability.
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
AD5045BRUZ 特点
- Low power Dual 12-/14-/16 bit DAC, ± 1LSB INL
- Individual Voltage reference pins
- Rail-to-rail operation
- 4.5 V to 5.5 V power supply
- Power-on reset to zero scale or midscale
- Power down to 400 nA @ 5 V
- 3 power-down functions
- Per channel power-down
- Low glitch upon power up
- Hardware Power Down lock Out Capability
- Hardware LDAC with software LDAC override function
- CLR Function to programmable code
AD5045BRUZ 功能框图
| 产品型号 | 产品状态 | 封装 | 引脚 | 温度范围 |
|---|---|---|---|---|
| AD5045BRUZ | 量产 | 14 ld TSSOP | 14 | 工业 |
| AD5045BRUZ-REEL7 | 量产 | 14 ld TSSOP | 14 | 工业 |
