ADS8201 2.2V to 5.5V, Low-Power, 12-Bit, 100kSPS, 8-Channel DAS with PGA and SPI™ | TI.com

ADS8201
This product has been released to the market and is available for purchase. For some products, newer alternatives may be available.
2.2V to 5.5V, Low-Power, 12-Bit, 100kSPS, 8-Channel DAS with PGA and SPI™

 

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.

Features

  • 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

Parametrics

Compare all products in Precision ADCs (<=10MSPS) Email Download to Excel
Part number Order Resolution (Bits) Sample rate (Max) (kSPS) Number of input channels Interface Operating temperature range (C) Package Group Approx. price (US$) Power consumption (Typ) (mW) Package size: mm2:W x L (PKG) Architecture Input type Multi-channel configuration Reference mode Features Input range (Max) (V) Input range (Min) (V) Analog voltage AVDD (Min) (V) Analog voltage AVDD (Max) (V) Digital supply (Min) (V) Digital supply (Max) (V) INL (Max) (+/-LSB) Rating
ADS8201 Order now 12     100     8     SPI     -40 to 85     VQFN | 24     3.03 | 1ku     1.32     24VQFN: 16 mm2: 4 x 4 (VQFN | 24)     SAR     Differential
Single-Ended    
Multiplexed     Ext     Oscillator
PGA    
5.5     0     2.2     5.5     2.2     5.5     1.5     Catalog