DAC8805中文资料14 位、双通道、并行接口、乘法数模转换器数据手册TI规格书

描述 Description

The DAC8805 dual, multiplying digital-to-analog converter (DAC) is designed to operate from a single 2.7V to 5.5V supply. The applied external reference input voltage VREF determines the full-scale output current. An internal feedback resistor (RFB) provides temperature tracking for the full-scale output when combined with an external, current-to-voltage (I/V) precision amplifier. A RSTSEL pin allows system reset assertion (RS) to force all registers to zero code when RSTSEL = '0', or to mid-scale code when RSTSEL = '1'. Additionally, an internal power-on reset forces all registers to zero or mid-scale code at power-up, depending on the state of the RSTSEL pin. A parallel interface offers high-speed communications. The DAC8805 is packaged in a space-saving TSSOP-38 package and has an industry-standard pinout. The device is specified from -40°C to +125°C. For a 16-bit, pin-compatible version, see the DAC8822.

特性 Features

• ±0.5LSB DNL
• ±0.5LSB INL
• Low Noise: 12nV/Hz
• Low Power: IDD = 1µA per channel at 2.7V
• 2mA Full-Scale Current, with VREF = 10V
• Settling Time: 0.5µs
• 14-Bit Monotonic
• 4-Quadrant Multiplying Reference Inputs
• Reference Bandwidth: 10MHz
• Reference Input: ±18V
• Reference Dynamics: -105 THD
• Midscale or Zero Scale Reset
• Analog Power Supply: +2.7V to +5.5V
• TSSOP-38 Package
• Industry-Standard Pin Configuration
• Pin Compatible with the 16-Bit DAC8822
• Temperature Range: -40°C to +125°C
• APPLICATIONS
• Automatic Test Equipment
• Instrumentation
• Digitally Controlled Calibration
• Industrial Control PLCs