AD7892AR-1 vs AD7892BR-1 对比
详细并排对比 AD7892AR-1 出自 Analog Devices 和 AD7892BR-1 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 | AD7892AR-1 | AD7892BR-1 |
|---|---|---|
| 品牌 | Analog Devices | Analog Devices |
| 分类 | ADC/DAC | ADC/DAC |
| 生命周期状态 | 不推荐新设计 | 有效 |
| 库存状态 | 有库存 | 有库存 |
| 单价（USD） | $11.20 | $38.90 |
| 分辨率 | 12 bits | 12 bits |
| Number of Inputs | 2 (selected via R1) | — |
| Throughput Rate | 500 kSPS (AD7892-1 grade) | — |
| Conversion Time | 1.47 us (successive approximation) | 1.47 µs |
| Input Range (R1 selection) | Bipolar ±10 V | — |
| 电源电压 | +5 V single supply | +5 V single supply |
| 电源电流 | ~60 mW power dissipation typical | — |
| On-Chip Reference | +2.5 V internal (LC2MOS buried-zener) | — |
| On-Chip Track/Hold | Yes | — |
| 接口 | Parallel and Serial (selectable) | — |
| Architecture | SAR (Successive Approximation) | SAR (Successive Approximation) |
| SNR | 70 dB (typical 50 kHz input) | — |
| INL | ±1 LSB (max) | — |
| 工作温度 | -40C to +85C | -40°C to +85°C |
| 封装 | 24-SOIC (SO-24 W) | 24-SOIC W (0.295", 7.5 mm width) |
| 安装类型 | Surface Mount | Surface Mount |
| RoHS 状态 | Non-RoHS (legacy, see AD7892ARZ-1 for Pb-free) | Non-RoHS (BR suffix indicates matte tin / non-LEAD-FREE). Use AD7892BRZ-1 for Pb-free. |
| Lead Finish | SnPb (legacy AD7892AR-1); AD7892ARZ-1 is Pb-free | — |
| Number of Channels | — | 1 |
| 采样率 | — | 500 kSPS |
| Input Range (AD7892-1) | — | True bipolar ±10 V or ±5 V |
| Input Range (AD7892-2) | — | 0 V to +5 V |
| Input Range (AD7892-3) | — | ±2.5 V (true bipolar) |
| Overvoltage Protection (AD7892-1/3) | — | ±17 V (AD7892-1), ±7 V (AD7892-3) |
| Reference Type | — | Internal 2.5 V or external |
| Data Interface | — | Parallel (12-bit word) or Serial |
| Track/Hold Amplifier | — | On-chip |
| Input Type | — | Single-Ended (true bipolar on -1/-3) |