AD7273: 3 MSPS 10位ADC，采用TSOT和MSOP封装
AD7273是一款10位高速、低功耗的逐次逼近型ADC。工作电压为：2.35V至3.6 V单电源,最高呑吐量可达3 MSPS。内部包含一个低噪声、宽带宽采样/保持放大器,可处理30 MHz以上的输入频率。AD7273 转换过程和数据采集过程通过/CS和串行时钟进行控制,从而为器件与微处理器或DSP接口创造了条件。输入信号在/CS的下降沿进行采样,而转换同时在此处启动。转换速率取决于SCLK。该器件不存在流水线延迟。AD7273采用先进的设计技术,可在高呑吐量的情况下实现极低的功耗。AD7273采用外部参考电压,范围为1.2 V至VDD,从而为ADC提供了最宽的动态输入范围。
The AD7273 is a 10-bit, high speed, low power, successive-approximation ADC. The part operates from a single 2.35V to 3.6 V power supply and features throughput rates up to 3 MSPS. The part contains a low-noise, wide bandwidth track/hold amplifier which can handle input frequencies in excess of 30 MHz.
The conversion process and data acquisition are controlled using CS and the serial clock, allowing the devices to interface with microprocessors or DSPs. The input signal is sampled on the falling edge of CS and the conversion is also initiated at this point. The conversion rate is determined by the SCLK. There are no pipeline delays associated with the part.The AD7273 uses advanced design techniques to achieve very low power dissipation at high throughput rates.The reference for the part is applied externally and can be in the range of 1.2 V to VDD. This allows the widest dynamic input range to the ADC.
AD7273 特点
- 高呑吐量：3 MSPS
- 额定电压(VDD)：2.35 V至3.6 V
- 低功耗：13.5 mW（3 MSPS,3 V电源）
- 宽输入带宽：70 dB信噪比（1 kHz输入频率）
- 灵活的功耗/串行时钟速度管理
- 无流水线延迟
- 高速串行接口：SPI(R)/
QSPITM/MICROWIRETM/
DSP 兼容 - 省电模式：最大1 uA
- 8引脚MSOP封装
- 8引脚MSOP封装
- 12位版本：AD7274
- Fast Throughput Rate: 3 MSPS
- Specified for VDD of 2.35 V to 3.6 V
- Low Power: 13.5 mW at 3 MSPS with 3 V Supplies
- Wide Input Bandwidth: 70 dB SNR at 1 MHz Input Frequency
- Flexible Power/Serial Clock Speed Management
- No Pipeline Delays
- High Speed Serial Interface SPI(R)/
QSPITM/MICROWIRETM/
DSP Compatible - Power Down Mode: 1 uA max
- 8-Lead TSOT Package
- 8-Lead MSOP Package
- 12-Bit Version: AD7274
AD7273 技术指标
- Resolution (Bits): 10bit
- # Chan: 1
- Sample Rate: 3MSPS
- Interface: Ser,SPI
- Analog Input Type: SE-Uni
- Ain Range: (Vref) p-p,Uni (Vref)
- ADC Architecture: SAR
- Pkg Type: SOP,SOT
AD7273 应用领域
- 电池供电系统
- - 个人数字助理
- - 医疗仪器
- - 移动通信
- 仪表和控制系统
- 数据采集系统
- 高速调制解调器
- 光敏元件
AD7273 功能框图
AD7273 芯片订购指南
| 产品型号 | 封装 | 引脚 | 温度范围 | 包装和数量 | 报价*(100-499) | 报价*1000 pcs | RoHS |
|---|---|---|---|---|---|---|---|
| AD7273BRMZ 产品状态: 量产 | 8 ld MSOP | 8 | 工业 | Tube, 50 | $ 4.46 | $ 3.80 | 是 |
| AD7273BRMZ-REEL 产品状态: 量产 | 8 ld MSOP | 8 | 工业 | Reel, 3000 | - | $ 3.80 | 是 |
| AD7273BUJZ-500RL7 产品状态: 量产 | 8 ld TSOT | 8 | 工业 | Reel, 500 | $ 4.46 | $ 3.80 | 是 |
| AD7273BUJZ-REEL7 产品状态: 量产 | 8 ld TSOT | 8 | 工业 | Reel, 3000 | - | $ 3.80 | 是 |