# WM5628L, WM5628

## 3 & 5V Octal 8-Bit Voltage Output DAC with Serial Interface

Features

️· Eight 8-bit voltage output DAC's
️· Three wire serial interface
️· Programmable x1 or x2 output range.
️· Power-on-reset sets outputs to zero
️· Buffered voltage reference inputs
️· Simultaneous DAC output update

Key Specifications

️· Single supply operation:
- WM5628L: 3V
- WM5628: 5V
️· 0 to 4V output (x2 range) at 5V VDD
️· 0 to 2.5V output (x2 range) at 3V VDD
️· Guaranteed monotonic output

Applications

️· Programmable d.c. voltage sources
️· Digitally controlled attenuator/amplifier
️· Signal synthesis
️· Mobile communications
️· Automatic test equipment
️· Process control

Pin Configuration

*(See datasheet for pinout diagram)*

Ordering Information

Device	Temp. Range	Package
WM5628CN	0°C to 70°C	16-pin plastic DIP
WM5628IN	-40°C to 85°C	16-pin plastic DIP
WM5628LCN	0°C to 70°C	16-pin plastic DIP
WM5628LIN	-40°C to 85°C	16-pin plastic DIP

*(Wide-bodied SO packages also available)*

Electrical Characteristics

️· Resolution: 8 bits
️· Supply Voltage (VDD): 2.7V - 5.5V (depending on version)
️· Reference Input Range: 3.3V - VDD - 1.5V
️· Output Sink Current: 20 µA
️· Output Source Current: 1mA - 2mA (depending on version)

Data Interface

️· Serial data input via DATA pin.
️· Controlled by CLK, LOAD, and LDAC inputs.
️· 12-bit command word: 3 DAC select bits, 1 range bit, and 8 data bits.
️· Double buffered DAC registers for individual or simultaneous updates.