MAX1291BEEI vs MAX1290ACEI 对比
详细并排对比 MAX1291BEEI 出自 Analog Devices 和 MAX1290ACEI 出自 Maxim Integrated。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 | MAX1291BEEI | MAX1290ACEI |
|---|---|---|
| 品牌 | Analog Devices | Maxim Integrated |
| 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） | $9.40 | $9.95 |
| 分辨率 | 12 bit | 12 bit |
| Number of Channels | 8 single-ended / 4 pseudo-differential | — |
| 采样率 | 250 ksps | 400 ksps |
| Input Type | Single-ended, pseudo-differential (software-configurable unipolar/bipolar) | Single-ended / pseudo-differential |
| Architecture | SAR (Successive Approximation Register) | — |
| Analog Supply Voltage | +2.7 V to +3.6 V | +5 V |
| Digital Supply Voltage | +2.7 V to +3.6 V | — |
| Analog Supply Current (AVCC) | 2.5 mA typ at 250 ksps | — |
| Power-Down Current | < 10 uA (auto power-down between conversions) | — |
| Internal Reference | +2.5 V, 10 ppm/°C typ | — |
| INL (max) | ±1 LSB | — |
| DNL (max) | ±1 LSB | — |
| SNR | 71 dB | — |
| Input Bandwidth | 16 MHz (-3 dB small-signal) | — |
| Track-and-Hold Acquisition Time | 100 ns | — |
| Input-Referred Noise | 0.5 LSB RMS typ | — |
| Data Interface | Byte-wide parallel (8/16-bit read) | — |
| Internal Oscillator | 20 MHz (eliminates external clock) | — |
| 工作温度范围 | -40 °C to +85 °C (industrial) | 0 C to +70 C (commercial) |
| 封装 | 28-pin QSOP | 28-pin QSOP |
| 安装类型 | Surface Mount | Surface Mount |
| MSL 等级 | 1 (unlimited) | — |
| RoHS 状态 | Compliant | Compliant |
| Number of Input Channels | — | 8 single-ended / 4 differential |
| ADC Architecture | — | SAR (Successive Approximation) |
| Digital Logic Supply (VLOGIC) | — | +2.7 V to +5.5 V |
| Internal Reference Voltage | — | +2.5 V |
| Wake-Up Time from Shutdown | — | 2 us |
| 接口 | — | Byte-wide parallel (8-bit) |
| Automatic Power-Down | — | Yes (hardware/software controlled) |
| On-Chip Clock | — | Yes |