| ADS8508 | |
| Resolution(Bits) | 12 |
| Sample Rate (max) | 250kSPS |
| Architecture | SAR |
| Power Consumption(Typ)(mW) | 70 |
| SINAD(dB) | 73 |
| SNR(dB) | 73 |
| SFDR(dB) | 90 |
| DNL(Max)(+/-LSB) | 0.45 |
| INL(Max)(+/-LSB) | 0.45 |
| No Missing Codes(Bits) | 12 |
| ENOB(Bits) | 11.83 |
| No. of Supplies | 1 |
| Analog Voltage AV/DD(Min)(V) | 4.75 |
| Analog Voltage AV/DD(Max)(V) | 5.25 |
| Logic Voltage DV/DD(Min)(V) | 4.75 |
| Logic Voltage DV/DD(Max)(V) | 5.25 |
| Input Configuration Range | +4V, 5V, 10V; +/-3.3V, 5V, 10V |
| Reference Mode | Int and Ext |
| Rating | Catalog |
| Pin/Package | 20SOIC |
| Comments | Input Impedance is half of 7808 |
| # Input Channels | 1 |
| Operating Temperature Range(°C) | -40 to 85 |
The ADS8508 is a complete 12-bit sampling analog-to-digital (A/D) converter using state-of-the-art CMOS structures. It contains a complete 12-bit, capacitor-based, successive approximation register (SAR) A/D converter with sample-and-hold, reference, clock, and a serial data interface. Data can be output using the internal clock or can be synchronized to an external data clock. The ADS8508 also provides an output synchronization pulse for ease of use with standard DSP processors.
The ADS8508 is specified at a 250-kHz sampling rate over the full temperature range. Precision resistors provide various input ranges including ±10 V and 0 V to 5 V, while the innovative design allows operation from a single +5-V supply with power dissipation under 100 mW.
| 器件 | 状态 | 温度(oC) | 价格（美元） | 封装 | 引脚 |
| ADS8508IBDW | ACTIVE | -40 to 85 | 10.95 | 1ku | SOIC (DW) | 20 |
| ADS8508IBDWG4 | ACTIVE | -40 to 85 | 10.95 | 1ku | SOIC (DW) | 20 |
| ADS8508IBDWR | ACTIVE | -40 to 85 | 9.95 | 1ku | SOIC (DW) | 20 |
| ADS8508IBDWRG4 | ACTIVE | -40 to 85 | 9.95 | 1ku | SOIC (DW) | 20 |