1 Features

1• Relative Accuracy: 4 LSB

• Glitch Energy: 0.15 nV-s

• MicroPower Operation: 510 μA at 2.7 V

• Internal Reference:

– 2.5-V Reference Voltage (Enabled by Default)

– 0.02% Initial Accuracy

– 2-ppm/°C Temperature Drift (Typical)

– 5-ppm/°C Temperature Drift (Maximum)

– 20-mA Sink/Source Capability

• Power-On Reset to Zero

• Power Supply: 2.7 V to 5.5 V

• 16-Bit Monotonic Over Temperature Range

• 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

Operation

• Power-Down Capability

• Drop-In Compatible With DAC8531/01 and

DAC8550 /51

• Temperature Range: –40°C to +105°C

• Available in a Tiny 8-Pin VSSOP Package

2 Applications

• Process Control

• Data Acquisition Systems

• Closed-Loop Servo-Control

• PC Peripherals

• Portable Instrumentation

3 Description

The DAC8560 is a low-power, voltage output, 16-bit

digital-to-analog converter (DAC). The DAC8560

includes a 2.5-V, 2-ppm/°C internal reference

(enabled by default), giving a full-scale output voltage

range of 0 V to 2.5 V. The internal reference has an

initial accuracy of 0.02% and can source up to 20 mA

at the VREF pin. The device is monotonic, provides

very good linearity, and minimizes undesired code-tocode

transient voltages (glitch). The DAC8560 uses a

versatile 3-wire serial interface that operates at clock

rates up to 30 MHz. It is compatible with standard

SPI, QSPI, Microwire, and digital-signal-processor

(DSP) interfaces.

The DAC8560 incorporates a power-on-reset (POR)

circuit that ensures the DAC output powers up at zero

scale and remains there until a valid code is written to

the device. The DAC8560 contains a power-down

feature, accessed over the serial interface, that

reduces the current consumption of the device to

1.2 μA at 5 V.

The low-power consumption, internal reference, and

small footprint make this device ideal for portable,

battery-operated equipment. The power consumption

is 2.6 mW at 5 V, reducing to 6 μW in power-down

mode.

The DAC8560 is available in an 8-pin VSSOP

package.