DAC 4-CH Resistor-String 16-bit 16-Pin TSSOP T/R

The DAC8564 is a low-power, voltage-output, four-channel, 16-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 DAC8564 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 DAC8564 incorporates a power-on-reset circuit that ensures the DAC output powers up at zero-scale and remains there 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 2.9mW at 3V, reducing to 1.5µW in power-down mode. The low-power consumption, internal reference, and small footprint make this device ideal for portable, battery-operated equipment. The DAC8564 is drop-in and functionally compatible with the DAC7564 and DAC8164, and functionally compatible with the DAC7565, DAC8165, and DAC8565. All these devices are available in a TSSOP-16 package.

Relative Accuracy: 4LSB

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

Ultra-Low Power Operation: 1mA at 5V

Wide Power Supply Range: +2.7V to +5.5V

16-Bit Monotonic Over Temperature Range

Settling Time: 10µs to ±0.003% 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