AK9240NK vs AD7691BCPZRL 对比
详细并排对比 AK9240NK 出自 AKM (Asahi Kasei Microdevices) 和 AD7691BCPZRL 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 | AK9240NK | AD7691BCPZRL |
|---|---|---|
| 品牌 | AKM (Asahi Kasei Microdevices) | Analog Devices |
| 分类 | ADC/DAC | ADC/DAC |
| 生命周期状态 | Obsolete | 有效 |
| 库存状态 | 有库存 | 有库存 |
| 单价（USD） | $5.44 | $10.40 |
| 分辨率 | 12 bits | — |
| Number of Channels | 2 (simultaneous sampling) | — |
| 采样率 | 1 MSPS per channel | 250 kSPS |
| Architecture | SAR (Successive Approximation Register) | SAR (PulSAR, charge-redistribution) |
| Input Type | Differential (current or voltage, selectable) | Differential (pseudo-bipolar capable with REF) |
| PGA | Integrated programmable gain amplifier | — |
| Input Configuration | PGA-ADC, 2 channels | — |
| Sample-and-Hold Ratio | 0:2 (no shared S/H; one per channel) | — |
| Data Interface | SPI | SPI, QSPI, MICROWIRE, DSP-compatible serial |
| Reference Type | [DATA_NEEDED: internal/external reference] | — |
| Analog Supply Voltage (AVDD) | 2.7 V to 5.5 V | — |
| Digital Supply Voltage (DVDD) | 2.7 V to 5.5 V | — |
| LED Driver | Integrated | — |
| Auto Power Control (APC) | Integrated | — |
| On-Chip Filter | Band-limiting low-pass filter | — |
| 封装 | 20-QFN (3x3 mm) with exposed pad | 10-LFCSP-WD (3x3 mm) with exposed pad |
| 安装类型 | Surface Mount | Surface Mount |
| 工作温度范围 | [DATA_NEEDED: operating temperature range] | — |
| RoHS 状态 | [DATA_NEEDED: RoHS compliance status] | Compliant |
| Product Status | Obsolete | — |
| Number of Bits | — | 18 |
| Number of Inputs | — | 1 |
| INL (max) | — | ±1.5 LSB (±6 ppm of FSR) |
| INL (typical) | — | ±0.75 LSB |
| Dynamic Range | — | 102 dB (typical @ 250 kSPS) |
| Reference | — | External (REF pin, up to VDD) |
| Supply Voltage (VDD) | — | 2.3 V to 5 V |
| Power Dissipation (typ. @ 5V, 250 kSPS) | — | 6 mW |
| 工作温度 | — | -40C to +85C |
| Daisy-Chain Support | — | Yes (SDI input for multi-ADC 3-wire bus) |
| MSL 等级 | — | 3 (168 hours) |