ADS8201中文资料具有 PGA 和 SPI™ 的 2.2V 至 5.5V、低功耗、12 位、100kSPS、8 通道 DAS数据手册TI规格书

描述 Description

The ADS8201 is a low-power, complete on-chip data acquisition system optimized for portable applications that require direct connections, wide dynamic range, and automatic operation with very low power consumption. The device includes a 12-bit, capacitor-based, successive approximation register (SAR) analog-to-digital converter (ADC); a high-performance, continuous-time programmable gain amplifier (PGA); and a fully automatic scan, 8-to-1 multiplexer (mux) with breakout to allow for system design flexibility. Many other features are included to further optimize system operation. Conversion results may be saved in an onboard first-in/first-out (FIFO) buffer and read out at a later time. Each channel has a gain setting that can be loaded automatically when it is selected. To simplify the serial port design, the ADS8201 offers a high-speed, wide-voltage serial interface. The ADS8201 is ideal for sensor applications (for example, bridge sensors, pressure sensors, accelerometers, gyrosensors, temperature sensors, etc.) as used in gaming and navigation. The ADS8201 is available in a 24-lead, 4×4 QFN package, and is specified over the –40°C to +85°C industrial temperature range.

特性 Features

• Low-Power, Flexible Supply Range:
• 1.32mW (100kHz, +VA = 2.2V, +VD = 2.2V)
• Up to 100kSPS Throughput Rate
• ±0.5 LSB typ, ±1.5 LSB max INL
• ±6 LSB Offset Error at +VA =5V
• Flexible Analog Inputs:
• Differential/Unipolar Input Range (0 to VREF)
• Programmable Averaging Function
• High Input Impedance
• PGA Breakout
• Auto/Manual Trigger
• Built-in Hardware Features:
• Hardware/Software Reset
• Flexible I/O:
• Separate I/O Supply (2.2V to 5.5V)
• SCLK up to 25MHz (VD = 5V)
• Multi-Chip Ready and Fully Enabled:
• Power-Down Mode
• APPLICATIONS
• Transducer Interfaces
• Data Acquisition Systems
• GPS Chipsets

DSP is a trademark of Texas Instruments. SPI is a trademark of Motorola Inc. All other trademarks are the property of their respective owners