DAC8165数据手册集成电路（IC）的数模转换器（DAC）规格书PDF

描述 Description

The DAC8165 is a low-power, voltage-output, four-channel, 14-bit digital-to-analog converter (DAC). The device includes a 2.5V, 2ppm/°C internal reference (enabled by default), giving a full-scale output voltage range of 2.5V. The internal reference has an initial accuracy of 0.004% and can source up to 20mA at the VREFH/VREFOUT pin. The device is monotonic, provides very good linearity, and minimizes undesired code-to-code transient voltages (glitch). The DAC8165 uses a versatile 3-wire serial interface that operates at clock rates up to 50MHz. The interface is compatible with standard SPI™, QSPI™, Microwire™, and digital signal processor (DSP) interfaces. The DAC8165 incorporates a power-on-reset circuit that ensures the DAC output powers up at either zero-scale or mid-scale until a valid code is written to the device. The device contains a power-down feature, accessed over the serial interface, that reduces the current consumption of the device to 1.3µA at 5V. Power consumption is 2.6mW at 3V, reducing to 1.4µW in power-down mode. The low power consumption, internal reference, and small footprint make this device ideal for portable, battery-operated equipment. The DAC8165 is drop-in and functionally compatible with the DAC7565 and DAC8565, and functionally compatible with the DAC7564, DAC8164 and DAC8564. All these devices are available in a TSSOP-16 package.

特性 Features

• Relative Accuracy: 1LSB
• Glitch Energy: 0.15nV-s
• Internal Reference:
• 2.5V Reference Voltage (enabled by default)
• 0.004% Initial Accuracy (typ)
• 2ppm/°C Temperature Drift (typ)
• 5ppm/°C Temperature Drift (max)
• 20mA Sink/Source Capability

• Power-On Reset to Zero-Scale or Mid-Scale
• Asynchronous Clear to Zero-Scale or Mid-Scale
• Ultra-Low Power Operation: 1mA at 5V
• Wide Power Supply Range: +2.7V to +5.5V
• 14-Bit Monotonic Over Temperature Range
• Settling Time: 10µs to ±0.006% Full-Scale Range (FSR)
• Low-Power Serial Interface with Schmitt-Triggered Inputs: Up to 50MHz
• On-Chip Output Buffer Amplifier with Rail-to-Rail Operation
• 1.8V to 5.5V Logic Compatibility
• Temperature Range: –40°C to +105°C
• APPLICATIONS

• Portable Instrumentation
• Closed-Loop Servo-Control
• Process Control, PLCs
• Data Acquisition Systems
• Programmable Attenuation
• PC Peripherals
SPI, QSPI are trademarks of Motorola, Inc. Microwire is a trademark of National Semiconductor. All other trademarks are the property of their respective owners.