ADS1220IRVAR vs ADS1220IPWR 对比
详细并排对比 ADS1220IRVAR 出自 Texas Instruments 和 ADS1220IPWR 出自 Texas Instruments。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。
Texas Instruments
ADS1220IRVAR - 24-Bit 2kSPS Delta-Sigma ADC with PGA | Texas Instruments
ADS1220IRVAR ✓ 量产中
规格对比
| 参数 | ADS1220IRVAR | ADS1220IPWR |
|---|---|---|
| 品牌 | Texas Instruments | Texas Instruments |
| 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） | $2.65 | $1.91 |
| 分辨率 | 24 bits | 24 bit |
| Architecture | Delta-Sigma (3rd-order modulator) | Sigma-Delta |
| Number of Input Channels | 4 single-ended or 2 differential (via MUX) | — |
| Maximum Sample Rate | 2 kSPS | 2 kSPS |
| Input Voltage Range (AVDD) | 2.3 V to 5.5 V | — |
| Digital I/O Voltage (DVDD) | 1.8 V to 3.6 V | — |
| Programmable Gain Amplifier Gains | 1, 2, 4, 8, 16, 32, 64, 128 | — |
| Effective Resolution (max) | 20 bits at 2 kSPS, up to 29.5 bits NFR at 20 SPS | — |
| Integrated Reference Voltage | 2.048 V (10 ppm/C typical drift) | — |
| IDAC Excitation Current | 10 uA to 1.5 mA, 2 matched sources | — |
| Communication Interface | SPI-compatible (up to 4.5 MHz) | — |
| Burnout Current Source | Yes (open-wire sensor detection) | — |
| 50/60 Hz Rejection | Yes, simultaneous at 20 SPS | — |
| 封装 | VQFN-16 (RVA) 3.5 mm x 3.5 mm with EP | 16-TSSOP |
| 安装类型 | Surface Mount | Surface Mount |
| 工作温度 | -40 C to +125 C | -40C to +125C |
| MSL 等级 | 2 (1 year) | — |
| RoHS 状态 | Compliant | — |
| Input Channels | — | 4 (2 differential or 4 single-ended) |
| 接口 | — | SPI |
| Integrated PGA | — | Yes, low-noise programmable gain amplifier |
| Integrated Reference | — | Yes, internal VREF |
| Excitation Current Sources | — | 2 programmable IDACs |
| Supply Voltage (AVDD) | — | [DATA_NEEDED: AVDD supply voltage range] |
| PGA Gain Range | — | [DATA_NEEDED: PGA gain range] |
| Noise Performance | — | [DATA_NEEDED: noise at 20 SPS] |
| Power Consumption | — | Low power (per TI product description) |
| Typical Price (qty 1) | — | from $1.91 (LCSC, as of 2026-09-03) |