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.
● Low-Power, Flexible Supply Range:
● 2.2V to 5.5V Analog Supply
● 1.32mW (100kHz, +VA = 2.2V, +VD = 2.2V)
● 4.5mW (100kHz, +VA = 5V, +VD = 5V)
● Up to 100kSPS Throughput Rate
● Excellent DC Performance:
● ±0.5 LSB typ, ±1.5 LSB max INL
● ±0.5 LSB typ, ±1.0 LSB max DNL
● ±6 LSB Offset Error at +VA =5V
● ±0.1%FS Gain Error at +VA = 5V
● Flexible Analog Inputs:
● True Differential Input
● Differential/Unipolar Input Range (0 to VREF)
● TAG Bit Output
● Programmable Averaging Function
● Onboard, Eight Single-Ended/Four Differential Channel Mux:
● High Input Impedance
● High-Performance PGA (Gain = 1/2/4/8)
● PGA Breakout
● Auto/Manual Channel Select with Gain
● Auto/Manual Trigger
● Mixed Type Partial Scan
● Built-in Hardware Features:
● On-chip Conversion Clock (CCLK)
● Hardware/Software Reset
● Programmable Status/Polarity for BUSY/INT
● Flexible I/O:
● SPI-/DSP™-Compatible Serial Interface
● Separate I/O Supply (2.2V to 5.5V)
● Onboard 8×1 FIFO Buffer
● SCLK up to 25MHz (VD = 5V)
● Multi-Chip Ready and Fully Enabled:
● Global CONVST (Independent of CS)
● Power-Down Mode
● 24-Pin 4×4 QFN Package
● APPLICATIONS
● Portable Communications
● Transducer Interfaces
● Portable Medical Instruments
● 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
