1 Features

1• Relative Accuracy:

– DAC756x (12-Bit): 0.3 LSB INL

– DAC816x (14-Bit): 1 LSB INL

– DAC856x (16-Bit): 4 LSB INL

• Glitch Impulse: 0.1 nV-s

• Bidirectional Reference: Input or 2.5-V Output

– Output Disabled by Default

– ±5-mV Initial Accuracy (Max)

– 4-ppm°C Temperature Drift (Typ) three–

10-ppm/°C Temperature Drift (Max)

– 20-mA Sink and Source Capability

• Power-On Reset to Zero Scale or Mid-Scale

• Low-Power: 4 mW (Typ, 5-V AV DD, Including

Internal Reference Current)

• Wide Power-Supply Range: 2.7 V to 5.5 V

• 50-MHz SPI With Schmitt-Triggered Inputs

• LDAC and CLR Functions

• Output Buffer With Rail-to-Rail Operation

• Packages: WSON-10 (3 mm × 3 mm), VSSOP-10

• Temperature Range: –40°C to 125°C

2 Applications

• Portable Instrumentation

• PLC Analog Output Module

• Closed-Loop Servo Control

• Voltage Controlled Oscillator Tuning

• Data Acquisition Systems

• Programmable Gain and Offset Adjustment

3 Description

The DAC756x, DAC816x, and DAC856x devices are

low-power, voltage-output, dual-channel, 16-, 14-, and 12-bit digital-to-analog converters (DACs),

respectively. These devices include a 2.5-V,

4-ppm/°C internal reference, giving a full-scale output

voltage range of 2.5 V or 5 V. The internal reference has an initial accuracy of ±5 mV and can source or

sink up to 20 mA at the VREFIN/VREFOUT pin.

These devices are monotonic, providing excellent

linearity and minimizing undesired code-to-code

transient voltages (glitch). They use a versatile three–

wire serial interface that operates at clock rates up to 50 MHz. The interface is compatible with standard

SPI™, QSPI™, Microwire, and digital signal

processor (DSP) interfaces. The DACxx62 devices

incorporate a power-on-reset circuit that ensures the

DAC output powers up and remains at zero scale until a valid code is written to the device, whereas the

DACxx63 devices similarly power up at mid-scale.

These devices contain a power-down feature that

reduces current consumption to typically 550 nA at

5 V. The low power consumption, internal reference,

and small footprint make these devices ideal for

portable, battery-operated equipment.

The DACxx62 devices are drop-in and functioncompatible

with each other, as are the DACxx63

devices. The entire family is available in MSOP-10

and SON-10 packages.