Analog Devices Inc. AD7980 16位 1MSPS PulSAR®模数转换器
亚德诺半导体 AD7980 1MSPS PulSAR® 模数转换器是低功耗、高速、 16 位采样模数转换器，具有通用串行接口端口。在 CNV 上升沿，AD7980 模数转换器对范围为 0V 至 REF 的 IN+ 与参考地 IN− 之间的模拟输入进行采样。该器件的基准电压(REF)由外部提供，并且可以独立于电源电压 VDD。采用单电源 VDD , AD7980 在高达 1MSPS 下功耗和吞吐率呈线性变化。SPI 兼容串行接口还能利用 SDI 输入将几个模数转换器以菊花链形式连结到单个三线式总线上，并提供一个可选的繁忙指示。AD7980 采用独立电源 VIO 时，AD7946 与 1.8V、2.5V、3V 和 5V 逻辑兼容。AD7980 1MSPS PulSAR® 模数转换器采用 10 引脚 MSOP 或 10 引脚 QFN（LFCSP）封装，工作温度范围为 -40°C 到 +125°C，适用于电池供电设备、通信、ATE、数据采集、医用仪器等。
Using the SDI input, the SPI-compatible serial interface can daisy-chain several ADCs on a single, 3-wire bus with an optional busy indicator. AD7980 is compatible with 1.8V, 2.5V, 3V, or 5V logic, using the separate supply VIO.
Housed in a 10-lead MSOP or a 10-lead QFN (LFCSP) package with operation specified from -40°C to +125°C, the AD7980 1MSPS PulSAR® ADCs are ideal for battery-powered equipment, communications, ATE, data acquisitions, and medical instruments.
特性
- 16-bit resolution with no missing codes
- Throughput: 1MSPS
- Low power dissipation
- 4mW at 1MSPS (VDD only)
- 7mW at 1MSPS (total)
- 70μW at 10kSPS
- INL: ±0.6LSB typical, ±1.25LSB maximum
- SINAD: 91.25dB at 10kHz
- THD: −110dB at 10kHz
- Pseudo-differential analog input range
- 0V to VREF with VREF between 2.5V to 5.5V
- No pipeline delay
- Single-supply 2.5V operation with 1.8V/2.5V/3V/5V logic interface
- Proprietary serial interface
- SPI/QSPI/MICROWIRE™/DSP compatible
- Daisy-chain multiple ADCs and busy indicator
- 10-lead MSOP and 10-lead, 3mm × 3mm LFCSP, same space as SOT-23
- Wide operating temperature range: −40°C to +125°C
应用
- Battery-powered equipment
- Communications
- ATE
- Data acquisitions
- Medical instruments
Functional Block Diagram
发布日期: 2015-06-17
| 更新日期: 2022-03-11