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 V REF+, 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

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, synchron·
ous 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 fea·
ture, 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.