汽车类 12 位 4 通道串行输出采样模数转换器 (ADC)
| Resolution (Bits) | 12 |
| Number of input channels | 4 |
| Sample rate (Max) (kSPS) | 200 |
| Interface type | SPI |
| Architecture | SAR |
| Input type | Single-Ended |
| Multi-channel configuration | Multiplexed |
| Rating | Automotive |
| Reference mode | Ext |
| Input range (Max) (V) | 5.25 |
| Input range (Min) (V) | 0 |
| Operating temperature range (C) | -40 to 125 |
| Power consumption (Typ) (mW) | 0.84 |
| Analog voltage AVDD (Min) (V) | 2.7 |
| SNR (dB) | 73 |
| Analog voltage AVDD (Max) (V) | 5.25 |
| INL (Max) (+/-LSB) | 1 |
| Digital supply (Min) (V) | 2.7 |
| Digital supply (Max) (V) | 5.25 |
- Qualified for Automotive Applications
- Single Supply: 2.7 V To 5 V
- Four-Channel Single-Ended Or Two-Channel Differential Input
- Up To 200-kHz Conversion Rate
- ±2 LSB Max INL and DNL
- No Missing Codes
- 71-dB Typ SINAD
- Serial Interface
- Alternate Source For MAX1247
The ADS7841 is a 4-channel 12-bit sampling analog-to-digital converter (ADC) with a synchronous serial interface. The resolution is programmable to either 8 bits or 12 bits. Typical power dissipation is 2 mW at a 200-kHz throughput rate and a 5-V supply. The reference voltage (VREF) can be varied between 100 mV and VCC, providing a corresponding input voltage range of 0 V to VREF. The device includes a shutdown mode that reduces power dissipation to under 15 μW. The ADS7841 is specified down to 2.7-V operation.
Low power, high speed, and on-board multiplexer make the ADS7841 ideal for battery-operated systems. The serial interface also provides low-cost isolation for remote data acquisition. The ADS7841 is available in a SSOP-16 package.
