Austriamicrosystems Releases Dual Simultaneous Sampling 1MSPS 12-bit ADC

Austriamicrosystems has introduced the AS1545, a dual high-speed successive-approximation ADC with low power consumption, DC performance and outstanding specifications, expanding Austriamicrosystems high-speed ADC portfolio. The AS1545 offers 12-bit resolution on each of the two ADCs and uses advanced design techniques to achieve low power dissipation at high throughput rates. At a conversion speed of 1MSPS and including the internal 2.5V reference, the AS1545 uses only 5.5mA. The conversion result of both ADCs is simultaneously available on separate data lines or in succession on one data line if only one serial port is available. The AS1545 operates from a single 2.7 to 5.25 V supply and contains a Vdrive (interface drive voltage) function which enables the serial interface to connect directly to either 3 or 5 V processor systems independent of the ADC’s supply voltage. The ADC can be interfaced via a high speed SPI/QSPI/Microwire or DSP interface. The AS1545 offers a rail to rail analog input range and can be selected to be a 0 V to VREF(or 2 × VREF), with either straight binary or two’s complement output coding. The common mode input range of the analog inputs also goes from rail to rail. The internal 2.5V reference can be overdriven when an external reference is preferred. The AS1545 is available in a small 5x5mm 32-pin TQFN package suitable for operating environments ranging from -40°C to +85°C.