1FEATURES
234• Relative Accuracy: 1LSB
• 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 or Mid-Scale
• Asynchronous Clear to Zero-Scale or
Mid-Scale
• Ultra-Low Power Operation: 1mA at 5V
• Wide Power Supply Range: +2.7V to +5.5V
• 14-Bit Monotonic Over Temperature Range
• Settling Time: 10μs to ±0.006% 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

DESCRIPTION
The DAC8165 is a low-power, voltage-output,
four-channel, 14-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 DAC8165 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 DAC8165 incorporates a power-on-reset circuit
that ensures the DAC output powers up at either
zero-scale or mid-scale 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 2.6mW at 3V,
reducing to 1.4μW in power-down mode. The low
power consumption, internal reference, and small
footprint make this device ideal for portable,
battery-operated equipment.
The DAC8165 is drop-in and functionally compatible
with the DAC7565 and DAC8565, and functionally
compatible with the DAC7564, DAC8164 and
DAC8564. All these devices are available in a
TSSOP-16 package.