AD7949BCPZRL7 vs AD7946BCPZ 对比
详细并排对比 AD7949BCPZRL7 出自 Analog Devices 和 AD7946BCPZ 出自 Analog Devices。对比关键规格、电气参数、封装、生命周期状态、价格和供货情况，以确定最适合您设计需求的元器件。
规格对比
| 参数 | AD7949BCPZRL7 | AD7946BCPZ |
|---|---|---|
| 品牌 | Analog Devices | Analog Devices |
| 分类 | ADC/DAC | ADC/DAC |
| 生命周期状态 | 有效 | 有效 |
| 库存状态 | 有库存 | 有库存 |
| 单价（USD） | $6.20 | $9.50 |
| 分辨率 | 14 bit | 14-bit |
| Number of Channels | 8 (single-ended) / 4 (differential pairs) | — |
| Architecture | SAR (Successive Approximation Register) | SAR (charge redistribution) |
| Sample Rate | 250 kSPS | — |
| Input Type | Single-Ended, Pseudobipolar, Differential (GND sense) | Pseudo-differential |
| Supply Voltage (VDD) | 2.3 V to 5.5 V | — |
| 基准电压 | 2.3 V to 5.5 V (external) | — |
| INL（积分非线性） | +/-1 LSB (typical) | — |
| No Missing Codes | Yes (14-bit guaranteed) | — |
| Digital Interface | SPI / QSPI / MICROWIRE / DSP-compatible, up to 50 MHz | — |
| Daisy-Chain Mode | Yes | — |
| Power Dissipation (250 kSPS, 5 V) | 4.5 mW (typical) | — |
| Power-Down Current | 1 uA (typical) | — |
| Acquisition Time | 290 ns (typical) | — |
| 工作温度 | -40C to +125C | -40°C to +85°C |
| 封装 | 20-LFCSP (4x4 mm) with exposed pad | 10-lead LFCSP (3 mm x 3 mm) |
| 安装类型 | Surface Mount | Surface Mount |
| MSL 等级 | [DATA_NEEDED: MSL rating] | — |
| RoHS 状态 | Compliant | — |
| Sample Rate (Warp mode) | — | 500 kSPS |
| Sample Rate (Normal mode) | — | 450 kSPS |
| Sample Rate (Impulse mode) | — | 380 kSPS |
| INL | — | 0.4 LSB typ, 1 LSB max |
| DNL | — | 0.25 LSB typ, 0.7 LSB max |
| 输入电压范围 | — | -0.5 V to 5.8 V |
| 电源电压 | — | 5 V |
| 引脚数 | — | 10 |
| 接口 | — | SPI-compatible |