The ABLIC S-US55D2 is an octal, 12-bit, 200MSPS, Digital-to-Analog Converter (DAC) with analog differential outputs and 2-bit per channel CMOS output pattern generators. It is designed for an ultrasound linear amplifier with 3-level pulser (3LP). Each channel has a 12bit x 4096 DAC pattern memory and a 128Byte 3LP pattern memory. The S-US55D2 is suitable as the input signal pattern generator to the S-UM55L2 ultrasound transmitter.
Functions
- Octal DAC with differential outputs and 2-bit per channel CMOS output pattern generators for an ultrasound transmitter
Features
<DAC>
- On-chip 12bit x4096 pattern Memory for each DAC
- 0.16μs to 40.96μs programmable delay time with 5ns resolution from TRIG signal
- 200MSPS sampling rate
- Both current output mode and voltage output mode are available.
- 14Ω/2Ω output impedance are selectable at voltage output mode.
- 1.28mA ~ 10.24mA selectable full-scale current @Current output mode
- 0.074V~0.592V (0.083V~0.664V) selectable full-scale voltage @voltage output mode
<3LP pattern generator>
- On-chip 128Byte pattern Memory for each 3LP pattern generator
- 0.16μs to 40.96μs programmable delay time with 5ns resolution from TRIG signal
<Others>
- Serial Peripheral Interface (SPI) for access to Memory and Register.
- 1.8V to 3.3V CMOS control logic interface
- Latch-up free, low crosstalk by SOI CMOS technology
- 68-lead 10x10mm QFN package (RoHS compliant)
Block diagram