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ADS8201IBRGET bảng dữ liệu(PDF) 1 Page - Texas Instruments |
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ADS8201IBRGET bảng dữ liệu(HTML) 1 Page - Texas Instruments |
1 / 33 page ADS8201 ADS8201 www.ti.com SLAS534B – JULY 2009 – REVISED MAY 2010 2.2V to 5.5V, Low-Power, 12-Bit, 100kSPS, 8-Channel Data Acquisition System with PGA and SPI™ Interface Check for Samples: ADS8201 1 FEATURES • Multi-Chip Ready and Fully Enabled: 234 • Low-Power, Flexible Supply Range: – Global CONVST (Independent of CS) – 2.2V to 5.5V Analog Supply • Power-Down Mode – 1.32mW (100kHz, +VA = 2.2V, +VD = 2.2V) • 24-Pin 4×4 QFN Package – 4.5mW (100kHz, +VA = 5V, +VD = 5V) APPLICATIONS • Up to 100kSPS Throughput Rate • Portable Communications • Excellent DC Performance: • Transducer Interfaces – ±0.5 LSB typ, ±1.5 LSB max INL • Portable Medical Instruments – ±0.5 LSB typ, ±1.0 LSB max DNL • Data Acquisition Systems – ±6 LSB Offset Error at +VA =5V • GPS Chipsets – ±0.1%FS Gain Error at +VA = 5V ... • Flexible Analog Inputs: DESCRIPTION – True Differential Input – Differential/Unipolar Input Range (0 to VREF) The ADS8201 is a low-power, complete on-chip data acquisition system optimized for portable applications – TAG Bit Output that require direct connections, wide dynamic range, – Programmable Averaging Function and automatic operation with very low power – Onboard, Eight Single-Ended/Four consumption. The device includes a 12-bit, Differential Channel Mux: capacitor-based, successive approximation register (SAR) analog-to-digital converter (ADC); a – High Input Impedance high-performance, continuous-time programmable – High-Performance PGA (Gain = 1/2/4/8) gain amplifier (PGA); and a fully automatic scan, – PGA Breakout 8-to-1 multiplexer (mux) with breakout to allow for system design flexibility. – Auto/Manual Channel Select with Gain – Auto/Manual Trigger Many other features are included to further optimize system operation. Conversion results may be saved – Mixed Type Partial Scan in an onboard first-in/first-out (FIFO) buffer and read • Built-in Hardware Features: out at a later time. Each channel has a gain setting – On-chip Conversion Clock (CCLK) that can be loaded automatically when it is selected. To simplify the serial port design, the ADS8201 offers – Hardware/Software Reset a high-speed, wide-voltage serial interface. The – Programmable Status/Polarity for BUSY/INT ADS8201 is ideal for sensor applications (for • Flexible I/O: example, bridge sensors, pressure sensors, accelerometers, gyrosensors, temperature sensors, – SPI-/ DSP™-Compatible Serial Interface etc.) as used in gaming and navigation. – Separate I/O Supply (2.2V to 5.5V) The ADS8201 is available in a 24-lead, 4x4 QFN – Onboard 8×1 FIFO Buffer package, and is specified over the –40°C to +85°C – SCLK up to 25MHz (VD = 5V) industrial temperature range. ... 1 Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet. 2 DSP is a trademark of Texas Instruments. 3 SPI is a trademark of Motorola Inc. 4 All other trademarks are the property of their respective owners. PRODUCTION DATA information is current as of publication date. Copyright © 2009–2010, Texas Instruments Incorporated Products conform to specifications per the terms of the Texas Instruments standard warranty. Production processing does not necessarily include testing of all parameters. |
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