DAC8550数据手册集成电路（IC）的数模转换器（DAC）规格书PDF

描述 Description

The DAC8550 is a small, low-power, voltage output, 16-bit digital-to-analog converter (DAC). It is monotonic, provides good linearity, and minimizes undesired code-to-code transient voltages. The DAC8550 uses a versatile, 3-wire serial interface that operates at clock rates of up to 30 MHz and is compatible with standard SPI™, QSPI™, Microwire™, and digital signal processor (DSP) interfaces.

The DAC8550 requires an external reference voltage to set its output range. The DAC8550 incorporates a power-on reset circuit that ensures that the DAC output powers up at midscale and remains there until a valid write takes place to the device. The DAC8550 contains a power-down feature, accessed over the serial interface, that reduces the current consumption of the device to 200 nA at 5 V.

The low-power consumption of this device in normal operation makes it ideal for portable, battery-operated equipment. Power consumption is 0.38 mW at 2.7 V, reducing to less than 1 µW in power-down mode.

The DAC8550 is available in an MSOP-8 package.

For additional flexibilty, see the DAC8551, a binary-coded counterpart to the DAC8550.

特性 Features

• Relative Accuracy: 8 LSB
• Glitch Energy: 0.1 nV-s
• MicroPower Operation: 140 µA at 2.7 V
• Power-On Reset to Midscale
• Power Supply: 2.7 V to 5.5 V
• 16-Bit Monotonic
• Settling Time: 10 µs to ±0.003% FSR
• Low-Power Serial Interface with Schmitt-Triggered Inputs
• On-Chip Output Buffer Amplifier with Rail-to-Rail Output Amplifier
• Power-Down Capability
• 2’s Complement Input
• SYNC Interrupt Facility
• Drop-In Compatible with DAC8531/01 and DAC8551 (Binary Input)
• Available in a Tiny MSOP-8 Package