The AD7689BCPZ is a 8-channel 16-bit 250kSPS PulSAR? Analogue to Digital Converter (ADC) that operates from a single power supply. It contains all components for use in a multichannel, low power data acquisition system, including a true 16-bit SAR ADC with no missing codes, a 8-channel low crosstalk multiplexer that is useful for configuring the inputs as single-ended (with or without ground sense), differential or bipolar, an internal low drift reference (selectable 2.5V or 4.096V) and buffer, a temperature sensor, a selectable one-pole filter and a sequencer that is useful when channels are continuously scanned in order. It uses a simple SPI interface for writing to the configuration register and receiving conversion results. The SPI interface uses a separate supply, VIO, which is set to the host logic level. Power dissipation scales with throughput.
- 16-bit Resolution with no missing codes
- 93.8dB Dynamic range
- -100dB at 20kHz THD
- Multiple reference types
- Internal temperature sensor (TEMP)
- No pipeline delay, SAR architecture
- 3.5mW Power dissipation at 2.5V/200kSPS
- 12.5mW Power dissipation at 5V/250kSPS
- 50nA Standby current
系统监控, 电源管理, 医用, 通信与网络, 信号处理, 传感与仪器, 自动化与过程控制
