The ADS8028 is a 12-bit analog-to-digital converter (ADC), capable of operating at sampling speeds up to 1 MSPS. The device is based on a successive approximation register (SAR) core and provides an inherent sample-and-hold (SH) front-end.
In addition to having eight analog input channels, the ADS8028 offers an internal temperature sensor with 0.25°C resolution and an internal voltage reference. A nine-channel internal multiplexer enables multiple channels to be selected (including the internal temperature sensor) that are indefinitely scanned in a sequential manner. A simple SPI-compatible serial interface provides easy communication and control between the device and host controller. The digital supply can operate from 1.65 V to 5.25 V, enabling direct interface with a wide range of processors and controllers.
At full speed of 1 MSPS, the ADS8028 dissipates only 17 mW. The device offers flexible power-down modes to save power when conversions are not being performed. The ADS8028 performance is specified over the extended industrial temperature range of –40°C to +125°C.
The ADS8028 is ideal for demanding measurement applications, such as sensor output monitoring, power-supply monitoring, and printed circuit board (PCB) hot-spot analysis, and is available in a small form-factor QFN-20 package.
|Part number||Order||Resolution (Bits)||Sample rate (Max) (kSPS)||Number of input channels||Interface||Operating temperature range (C)||Package Group||Approx. price (US$)||Power consumption (Typ) (mW)||Package size: mm2:W x L (PKG)||Architecture||Input type||Multi-channel configuration||Reference mode||Features||Input range (Max) (V)||Input range (Min) (V)||Analog voltage AVDD (Min) (V)||Analog voltage AVDD (Max) (V)||Digital supply (Min) (V)||Digital supply (Max) (V)||INL (Max) (+/-LSB)||SNR (dB)||THD (Typ) (dB)||Rating|
||12||1000||8||SPI||-40 to 125||QFN | 20||3.25 | 1ku||17||20QFN: 16 mm2: 4 x 4 (QFN | 20)||SAR||Single-Ended||Multiplexed||
||12||0.082||8||I2C||-40 to 125||TSSOP | 16||1.95 | 1ku||2||16TSSOP: 22 mm2: 4.4 x 5 (TSSOP | 16)||Delta-Sigma||
||12||1000||8||Enhanced SPI||-40 to 85||WQFN | 16||2.70 | 1ku||16WQFN: 9 mm2: 3 x 3 (WQFN | 16)||SAR||Single-Ended||Multiplexed||Supply||
Digital Window Comparator
||12||1000||8||Enhanced SPI||-40 to 125||WQFN | 16||3.00 | 1ku|