| TYPE | DESCRIPTION |
|---|
| Mounting Style | Surface Mount |
| Number of Pins | 44 Pin |
| Digital Logic Level | SAR |
| Supply Voltage (DC) | 3.00V (min) |
| Case/Package | QFP-44 |
| Supply Current | 4.50 mA |
| Number of Positions | 44 Position |
| Number of Bits | 12 Bit |
| Power Dissipation | 25 mW |
| Sample Rate | 200 ksps |
| Power Consumption | 25 mW |
| Resolution (Bits) | 12.0 Bit |
| Input Capacitance | 20.0 pF |
| Input Impedance | 1.00 Ω |
| Number of ADCs | 1 ADC |
| Number of Inputs | 4, 8 Input |
| Operating Temperature (Max) | 85 ℃ |
| Operating Temperature (Min) | -40 ℃ |
| Power Dissipation (Max) | 30 mW |
| Number of Input Channels | 4, 8 Channel |
| Supply Voltage (Max) | 5.5 V |
| Supply Voltage (Min) | 3 V |
| TYPE | DESCRIPTION |
|---|
| Product Lifecycle Status | Active |
| Packaging | Tray |
| Size-Length | 10 mm |
| Size-Width | 10 mm |
| Size-Height | 2 mm |
| Operating Temperature | -40℃ ~ 85℃ |
The AD7859ASZ is a high speed, low power 8-channel 12-bit Analog-to-digital Converter (ADC) which operates from a single 3/5V power supply, the converter being optimized for speed and the converter for low power. The ADC contains self-calibration and system calibration options to ensure accurate operation over time and temperature and has a number of power-down options for low power applications. It is capable of 200kHz throughput rate while it is capable of 100kHz throughput rate. The input track-and-hold acquires a signal in 500ns and features a pseudo-differential sampling scheme. The converter input voltage range is 0 to VREF (uni-polar) and -VREF/2 to +VREF/2 about VREF/2 (bipolar) with both straight binary and 2s complement output coding respectively. Input signal range is to the supply and the part is capable of converting full-power signals to 100kHz. CMOS construction ensures low power dissipation of typically 5.4mW for normal operation and 3.6µW in power-down mode.
● System and self-calibration
● Low power
● Normal operation
● Using automatic power-down after conversion
● Flexible parallel interface - 16-bit parallel/8-bit parallel
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