零件编号 : DAC8562
功能 : DUAL 16-/14-/12-BIT, ULTRALOW-GLITCH, LOW-POWER, BUFFERED, VOLTAGE-OUTPUT DAC WITH 2.5-V, 4-PPM/°C INTERNAL REFERENCE IN SMALL 3-MM × 3-MM SON
制造商 : Texas Instruments
引脚图 :
描述
DESCRIPTION
The DAC856x, DAC816x, and DAC756x are low-power, voltage-output, dual-channel, 16-, 14-, and 12-bit digital-to-analog converters (DACs), respectively. These devices include a 2.5-V, 4-ppm/°C internal reference, giving a full-scale output voltage range of
2.5 V or 5 V. The internal reference has an initial accuracy of ±5 mV and can source or sink up to 20 mA at the VREFIN/VREFOUT pin.
These devices are monotonic, providing excellent linearity and minimizing undesired code-to-code transient voltages (glitch). They use a versatile three-wire serial interface that operates at clock rates up to 50 MHz. The interface is compatible with standard
SPI™, QSPI™, Microwire™, and digital signal processor (DSP) interfaces. The DACxx62 devices incorporate a power-on-reset circuit that ensures the DAC output powers up at zero scale until a valid code is written to the device, whereas the DACxx63s
similarly power up at mid-scale. These devices contain a power-down feature that reduces current consumption to typically 550 nA at 5 V. The low power consumption, internal reference, and small footprint make these devices ideal for portable, battery-operated equipment.
FEATURES
• Relative Accuracy:
– DAC856x (16-Bit): 4 LSB INL
– DAC816x (14-Bit): 1 LSB INL
– DAC756x (12-Bit): 0.3 LSB INL
• Glitch Energy: 0.1 nV-s
• Bidirectional Reference: Input or 2.5-V Output
– Output Disabled by Default
– ±5-mV Initial Accuracy (Max)
– 4-ppm/°C Temperature Drift (Typ)
– 10-ppm/°C Temperature Drift (Max)
– 20-mA Sink/Source Capability
• Power-On Reset to Zero Scale or Mid-Scale
• Low-Power: 4 mW (Typ, 5-V AVDD, Including Internal Reference Current)
• Wide Power-Supply Range: 2.7 V to 5.5 V
• 50-MHz SPI With Schmitt-Triggered Inputs
• LDAC and CLR Functions
• Output Buffer With Rail-to-Rail Operation
• Packages: SON-10 (3×3 mm), MSOP-10
• Temperature Range: –40°C to 125°C
APPLICATIONS
• Portable Instrumentation
• Bipolar Outputs (reference design)
• PLC Analog Output Module (reference design)
• Closed-Loop Servo Control
• Voltage Controlled Oscillator Tuning
• Data Acquisition Systems
• Programmable Gain and Offset Adjustment
数据手册 PDF资料下载
文件中的其他数据表：
DAC7562,DAC7562SDGSR,DAC7562SDGST,DAC7562SDSCR,DAC7562SDSCT