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Convertidores analógico-digitales (ADC)
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ADS8201

ACTIVO

DAS de 2.2 V a 5.5 V, baja potencia, 12 bits, 100 kSPS, 8 canales con PGA y SPI™

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ADS8201

ACTIVO
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Detalles del producto

Resolution (Bits) 12 Sample rate (max) (ksps) 100 Number of input channels 8 Interface type SPI Architecture SAR Input type Differential, Single-ended Multichannel configuration Multiplexed Rating Catalog Reference mode External Input voltage range (max) (V) 5.5 Input voltage range (min) (V) 0 Features Oscillator, PGA Operating temperature range (°C) -40 to 85 Power consumption (typ) (mW) 1.32 Analog supply voltage (min) (V) 2.2 Analog supply voltage (max) (V) 5.5 Digital supply (min) (V) 2.2 Digital supply (max) (V) 5.5
Resolution (Bits) 12 Sample rate (max) (ksps) 100 Number of input channels 8 Interface type SPI Architecture SAR Input type Differential, Single-ended Multichannel configuration Multiplexed Rating Catalog Reference mode External Input voltage range (max) (V) 5.5 Input voltage range (min) (V) 0 Features Oscillator, PGA Operating temperature range (°C) -40 to 85 Power consumption (typ) (mW) 1.32 Analog supply voltage (min) (V) 2.2 Analog supply voltage (max) (V) 5.5 Digital supply (min) (V) 2.2 Digital supply (max) (V) 5.5
VQFN (RGE) 24 16 mm² (4 mm × 4 mm)
  • 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
  • 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

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.

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.
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Documentación técnica

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Ver todo 5
Documentación principal Tipo Título Opciones de formato Descargar la versión más reciente en inglés Fecha
* Hoja de datos 2.2V to 5.5V, Low-Power, 12-Bit, 100kSPS, 8-Ch Data Acq System with PGA and SPI datasheet (Rev. B) 10/05/2010
Libro electrónico Best of Baker's Best: Precision Data Converters -- SAR ADCs 21/05/2015
Nota sobre la aplicación Determining Minimum Acquisition Times for SAR ADCs, part 2 17/03/2011
Nota sobre la aplicación Determining Minimum Acquisition Times for SAR ADCs, part 1 (Rev. A) 10/11/2010
Nota sobre la aplicación Obtaining 17 Bits of Resolution using a 12-Bit A/D System on a Chip 24/06/2010

Diseño y desarrollo

Para conocer los términos adicionales o los recursos necesarios, haga clic en cualquier título de abajo para ver la página de detalles cuando esté disponible.

Modelo de simulación

ADS8201 IBIS Model

SBAM019.ZIP (38 KB) - Modelo IBIS
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Modelo de simulación

ADS8201 TINA-TI Reference Design

SLAM300.TSC (2765 KB) - Diseño de referencia TINA-TI
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Modelo de simulación

ADS8201 TINA-TI Transient Spice Model

SLAM299.ZIP (46 KB) - Modelo TINA-TI Spice
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The ADC-TO-VREF-SELECT tool enables the pairing of TI analog-to-digital converters (ADCs) and series voltage references. Users can select an ADC device and the desired reference voltage, and the tool will list up to two voltage reference recommendations.
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Soporte y capacitación

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