Analog Devices Inc. AD7091R-2/AD7091R-4/AD7091R-8超低功耗12位模数转换器
Analog Devices AD7091R-2/AD7091R-4/AD7091R-8 系列是多通道、12 位、超低功耗、逐次逼近型模数转换器(ADC)，提供 2/4/8 模拟输入通道选项。AD7091R-2/AD7091R-4/AD7091R-8 采用 2.7V 到 5.25V 的单电源供电，可达到一百万采样每秒（MSPS）的采样率。AD7091R-2/ AD7091R-4/AD7091R-8 内置一个宽带宽采样保持放大器，可处理 1.5MHz 以上的输入频率。AD7091R-2/AD7091R-4/AD7091R-8 还具有一个片上转换时钟、精确的 2.5V 片上基准和一个高速串行接口。
特性
- Fast throughput rate of 1MSPS
- Specified for VDD of 2.7V to 5.25V
- Ultralow power: 467μA typical at 3V and 1 MSPS
- 2, 4, and 8 single-ended analog input channels
- Programmable channel sequencer
- ALERT function available in 4- and 8-channel versions
- BUSY indication available in 4- and 8-channel versions
- GPOx pins available in 4- and 8-channel versions
- Wide input bandwidth
- 70dB signal-to-noise ratio (SNR) typical at input frequency of 10kHz
- Flexible power/throughput rate management
- No pipeline delays
- High speed serial interface
- SPI/QSPI™/MICROWIRE™/DSP compatible
- Daisy-chain mode
- Power-down mode
- 550nA typical at VDD = 5.25V
- 435nA typical at VDD = 3V
- 16-lead, 20-lead, and 24-lead TSSOP packages
- Temperature range: −40°C to +125°C
应用
- Battery-powered systems
- Personal digital assistants
- Medical instruments
- Mobile communications
- Instrumentation and control systems
- Data acquisition systems
- Optical sensors
- Diagnostic/monitoring functions
Functional Block Diagram
发布日期: 2014-04-08
| 更新日期: 2025-09-30