MAX1291BEEI vs MAX1291BCEI 对比
详细并排对比 MAX1291BEEI 出自 Analog Devices 和 MAX1291BCEI 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 | MAX1291BCEI |
|---|---|---|
| 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 | $8.93 |
| 分辨率 | 12 bit | 12 bit |
| Number of Channels | 8 single-ended / 4 pseudo-differential | 8 single-ended / 4 differential (software-configurable) |
| 采样率 | 250 ksps | 250 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 | — |
| 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) | Parallel (12-bit wide) |
| Internal Oscillator | 20 MHz (eliminates external clock) | — |
| 工作温度范围 | -40 °C to +85 °C (industrial) | — |
| 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 (BCEI suffix) |
| ADC Architecture | — | SAR (Successive Approximation Register) |
| Supply Voltage (Analog) | — | 2.7 V to 3.6 V (single +3 V supply) |
| Supply Voltage (Digital) | — | 2.7 V to 3.6 V |
| Internal Reference Voltage | — | +2.5 V |
| 输入电压范围 | — | 0 to VREF / 0 to 2 VREF / ±VREF / ±2 VREF (software-configurable) |
| Number of Inputs | — | 4 or 8 (software-configurable) |
| 工作温度 | — | 0C to +70C (commercial grade, B suffix) |
| Power-Down Mode | — | Yes (hardware and software configurable) |
| INL (Max) | — | [DATA_NEEDED: INL maximum in LSB] |
| DNL (Max) | — | [DATA_NEEDED: DNL maximum in LSB] |
| Power Consumption (Active) | — | [DATA_NEEDED: active supply current in mA] |
| Power Consumption (Power-Down) | — | [DATA_NEEDED: power-down current in uA] |