| ADS8481 | ADS8482 | |
| Resolution(Bits) | 18 | 18 |
| Sample Rate (max) | 1MSPS | 1MSPS |
| Architecture | SAR | SAR |
| Power Consumption(Typ)(mW) | 220 | 225 |
| SINAD(dB) | 93 | 99 |
| SNR(dB) | 94 | 99 |
| SFDR(dB) | 112 | 123 |
| DNL(Max)(+/-LSB) | +1.5 , -1 | 1.5 |
| INL(Max)(+/-LSB) | 3.5 | 2.5 |
| No Missing Codes(Bits) | 18 | 18 |
| No. of Supplies | 2 | 2 |
| Analog Voltage AV/DD(Min)(V) | 4.75 | 4.75 |
| Analog Voltage AV/DD(Max)(V) | 5.25 | 5.25 |
| Logic Voltage DV/DD(Min)(V) | 2.7 | 2.7 |
| Logic Voltage DV/DD(Max)(V) | 5.25 | 5.25 |
| Input Configuration Range | Vref | Vref |
| Reference Mode | Int and Ext | Int and Ext |
| Rating | Catalog | Catalog |
| Pin/Package | 48VQFN | 48VQFN |
| # Input Channels | 1 | 1 |
| Operating Temp Range(Celsius) | -40 to 85 | -40 to 85 |
The ADS8481 is an 18-bit, 1-MSPS A/D converter with an internal 4.096-V reference and a pseudo-differential unipolar single-ended input. The device includes a 18-bit capacitor-based SAR A/D converter with inherent sample and hold. The ADS8481 offers a full 18-bit interface, a 16-bit option where data is read using two read cycles, or an 8-bit bus option using three read cycles.
The ADS8481 is available in a 7x7 QFN package and is characterized over the industrial -40°C to 85°C temperature range.
| 器件 | 状态 | 温度(oC) | 价格（美元） | 封装 | 引脚 |
| ADS8481IBRGZR | ACTIVE | -40 to 85 | 22.00 | 1ku | VQFN(RGZ) | 48 |
| ADS8481IBRGZRG4 | ACTIVE | -40 to 85 | 22.00 | 1ku | VQFN(RGZ) | 48 |
| ADS8481IBRGZT | ACTIVE | -40 to 85 | 23.00 | 1ku | VQFN(RGZ) | 48 |
| ADS8481IBRGZTG4 | ACTIVE | -40 to 85 | 23.00 | 1ku | VQFN(RGZ) | 48 |
| ADS8481IRGZR | ACTIVE | -40 to 85 | 15.20 | 1ku | VQFN(RGZ) | 48 |
| ADS8481IRGZRG4 | ACTIVE | -40 to 85 | 15.20 | 1ku | VQFN(RGZ) | 48 |
| ADS8481IRGZT | ACTIVE | -40 to 85 | 16.20 | 1ku | VQFN(RGZ) | 48 |
| ADS8481IRGZTG4 | ACTIVE | -40 to 85 | 16.20 | 1ku | VQFN(RGZ) | 48 |
| ADS8481RGZR | PREVIEW | -40 to 85 | VQFN(RGZ) | 48 |