AD7490BRU:带序列器的16通道、1 MSPS、12位ADC,采用28引脚TSSOP封装
AD7490是一款12位高速、低功耗逐次逼近型ADC,采用单电源供电,电源电压为2.7V至5.25V,最高呑吐量可达1 MSPS。该器件内置一个低噪声、宽带宽采样/保持放大器,可处理1 MHz以上的输入频率。
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。该器件不存在流水线延迟。
AD7490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。采用3 V电源,呑吐量为1 MSPS时,AD7490的功耗为1.2 mA；采用5 V电源,呑吐量为1 MSPS,其功耗为2 mA。
The AD7490 is a 12-bit high speed, low power, successive- approximation ADC. The part operates from a single 2.7 V to 5.25 V power supply and features throughput rates up to 1 MSPS. The part contains a low-noise, wide bandwidth track/hold amplifier that can handle input frequencies in excess of 1 MHz.
The conversion process and data acquisition are controlled using CS and the serial clock, allowing the device to interface with microprocessors or DSPs. The input signal is sampled on the falling edge of CS and conversion is also initiated at this point. There are no pipeline delays associated with the part.
The AD7490 uses advanced design techniques to achieve very low power dissipation at high throughput rates. With 3 V supplies and 1 MSPS throughput rate, the AD7490 consumes 1.2 mA and with 5 V supplies and 1 MSPS, the current consumption is 2 mA.
AD7490BRU 特点
- 高呑吐量：1 MSPS
- 额定电压（VDD）：2.7 V至5.25 V
- 低功耗：
典型3 mW（1MSPS,3 V电源）
典型9 mW（1MSPS,5 V电源） - 16个带序列器的（单端）输入
- 宽输入带宽：70 dB信噪比（30 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/QSPI/µWire/DSP 兼容 - 待机模式：最大1 µA
- 28引脚TSSOP和32引脚LFCSP封装
- Fast Throughput Rate: 1 MSPS
- Specified for VDD of 2.7 V to 5.25 V
- Low Power:
3 mW typ at 1MSPS with 3 V Supplies
9 mW typ at 1MSPS with 5 V Supplies - Sixteen (Single Ended) Inputs with Sequencer
- Wide Input Bandwidth: 70 dB SNR at 30 kHz Input Frequency
- Flexible Power/Serial Clock Speed Management
- No Pipeline Delays
- High Speed Serial Interface
SPI/QSPI/µWire/DSP Compatible - Standby Mode: 1 µA max
- 28-Pin TSSOP and 32-Pin LFCSP Packages
AD7490BRU 功能框图
| 产品型号 | 产品状态 | 封装 | 引脚 | 温度范围 |
|---|---|---|---|---|
| AD7490BCP | 量产 | 32 ld LFCSP (5x5mm CP-32-2) | 32 | 工业 |
| AD7490BCP-REEL | 量产 | 32 ld LFCSP (5x5mm CP-32-2) | 32 | 工业 |
| AD7490BCP-REEL7 | 量产 | 32 ld LFCSP (5x5mm CP-32-2) | 32 | 工业 |
| AD7490BCPZ | 量产 | 32 ld LFCSP (5x5mm CP-32-2) | 32 | 工业 |
| AD7490BCPZ-REEL7 | 量产 | 32 ld LFCSP (5x5mm CP-32-2) | 32 | 工业 |
| AD7490BRU | 量产 | 28 ld TSSOP (4.4mm) | 28 | 工业 |
| AD7490BRU-REEL | 量产 | 28 ld TSSOP (4.4mm) | 28 | 工业 |
| AD7490BRU-REEL7 | 量产 | 28 ld TSSOP (4.4mm) | 28 | 工业 |
| AD7490BRUZ | 量产 | 28 ld TSSOP (4.4mm) | 28 | 工业 |
| AD7490BRUZ-REEL | 量产 | 28 ld TSSOP (4.4mm) | 28 | 工业 |
| AD7490BRUZ-REEL7 | 量产 | 28 ld TSSOP (4.4mm) | 28 | 工业 |
| EVAL-AD7490CBZ | 量产 | 评估板 | - | 待定 |
AD7490BRU 应用技术支持与电子电路设计开发资源下载
- AD7490 数据手册DataSheet下载 . pdf
- Analog Devices, Inc.ADI 美国模拟器件公司产品订购手册 .pdf
- ADC模数转换器选型指南 . pdf
