DAC8544数据手册集成电路（IC）的数模转换器（DAC）规格书PDF

描述 Description

The DAC8544 is a low-power, quad-channel, 16-bit, voltage output DAC. Its on-chip precision output amplifier allows rail-to-rail voltage swing to be achieved at the output. The DAC8544 is 16-bit monotonic and offers exceptional absolute accuracy with ultralow crosstalk. The DAC8544 uses a 16-bit parallel interface and features additional power-down function pins as well as hardware-enabled, synchronous DAC updating and reset capability.

The DAC8544 requires an external reference voltage to set the output range of the DAC. The device incorporates a power-on-reset circuit that ensures that the DAC outputs power up at zero volt and remains there until a valid write takes place. In addition, the DAC8544 contains a power-down feature, accessed via PD\\ pin, that reduces the current consumption of the device to 400 nA at 5 V. The power consumption is typically under 5 mW at VDD = 5 V.

The DAC8544 is available in a 48-lead TQFP package with an operating temperature range of –40°C to +105°C.

特性 Features

• Single Supply: +2.7 V to +5.5 V
• Micropower Operation: 950 µA @ 5 V
• Rail-To-Rail Voltage Output
• Ultralow Crosstalk: –110 dB
• Settling Time: 10 µs To ±0.003% FSR
• 16-Bit Monotonic
• Offset Error: ±0.3 mV
• Gain Error: ±1 mV
• Total Error: ±3 mV
• Per-Channel VREF+, VREF–, VFB Pins
• Logic Compatible: +1.8 V to +5.5 V
• Readback Capability
• Double Buffered Inputs
• Simultaneous or Sequential Update
• Schmitt-Triggered Digital Inputs
• Hardware Reset
• 48-Lead TQFP Package
• APPLICATIONS
• Process Control
• Data Acquisition Systems
• Closed-Loop Servo Control
• PC Peripherals
• Optical Networking