Packaging information
| Package | Pins WQFN (RTJ) | 20 |
| Operating temperature range (°C) -40 to 125 |
| Package qty | Carrier 250 | SMALL T&R |
Features for the ADS8028
- Outstanding Performance:
- Throughput: Up to 1 MSPS
- No Missing Codes: 12 Bits
- INL: ±0.5 LSB
- SNR: 72 dB
- Highly Integrated:
- Eight Analog Inputs
- High-Resolution Internal Temperature Sensor
- Nine-Channel Multiplexer with Channel Sequencer
- Low-Drift Internal Voltage Reference
- Wide Supply Range:
- Analog Supply (AVDD): 2.7 V to 5.25 V
- Digital Supply (DVDD): 1.65 V to 5.25 V
- Low Power:
- 17 mW at 1 MSPS
- Flexible Power-Down Modes
- SPI™-Compatible Serial Interface: 20 MHz
- Small Footprint: 4-mm × 4-mm, Thin QFN-20
Description for the ADS8028
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.