ADC081S021 8-Bit, 200kSPS, 1-Ch SAR ADC with SPI | TI.com

ADC081S021 (ACTIVE)

8-Bit, 200kSPS, 1-Ch SAR ADC with SPI

 

Description

The ADC081S021 device is a low-power, single-channel CMOS 8-bit analog-to-digital converter with a high-speed serial interface. Unlike the conventional practice of specifying performance at a single sample rate only, the ADC081S021 is fully specified over a sample rate range of 50 ksps to 200 ksps. The converter is based upon a successive-approximation register architecture with an internal track-and-hold circuit.

The output serial data is straight binary, and is compatible with several standards, such as SPI, QSPI, MICROWIRE, and many common DSP serial interfaces.

The ADC081S021 operates with a single supply that can range from 2.7 V to 5.25 V. Normal power consumption using a 3.6-V or 5.25-V supply is 1.3 mW and 7.7 mW, respectively. The power-down feature reduces the power consumption to as low as 2.6 µW using a 5.25-V supply.

The ADC081S021 is packaged in 6-pin WSON and SOT-23 packages. Operation over the industrial temperature range of –40°C to 85°C is ensured.

Features

  • Characterized and Specified Over Multiple
    Sample Rates
  • 6-Pin WSON and SOT-23 Packages
  • Variable Power Management
  • Single Power Supply With 2.7-V to 5.25-V Range
  • Compatible With SPI™, QSPI™, MICROWIRE™,
    and DSP
  • DNL: +0.04/–0.03 LSB (Typical)
  • INL: +0.04/0.03 LSB (Typical)
  • SNR: 49.6 dB (Typical)
  • Power Consumption:
    • 3.6-V Supply: 1.3 mW (Typical)
    • 5.25-V Supply: 7.7 mW (Typical)

Parametrics

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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) SNR (dB) THD (Typ) (dB) Rating
ADC081S021 Order now 8     200     1     Microwire (Serial I/O)
QSPI
SPI    
-40 to 85     SOT-23 | 6
WSON | 6    
0.61 | 1ku     1.3     6SOT-23: 5 mm2: 1.6 x 2.9 (SOT-23 | 6)
See datasheet (WSON)    
SAR     Single-Ended    
   
Supply     Small Size     5.25     0     2.7     5.25     2.7     5.25     0.3     49.6     -77     Catalog    
ADC081S051 Order now 8     500     1     Microwire (Serial I/O)
QSPI
SPI    
-40 to 85     SOT-23 | 6
WSON | 6    
0.94 | 1ku     1.6     6SOT-23: 5 mm2: 1.6 x 2.9 (SOT-23 | 6)
See datasheet (WSON)    
SAR     Single-Ended    
   
Supply     Small Size     5.25     0     2.7     5.25     2.7     5.25     0.3     49.6     -77     Catalog    
ADC081S101 Order now 8     1000     1     Microwire (Serial I/O)
QSPI
SPI    
-40 to 85     SOT-23 | 6
WSON | 6    
0.83 | 1ku     3     6SOT-23: 5 mm2: 1.6 x 2.9 (SOT-23 | 6)
See datasheet (WSON)    
SAR     Single-Ended    
   
Supply     Small Size     5.25     0     2.7     5.25     2.7     5.25     0.3     49.7     -77     Catalog    
ADC101S021 Order now 10     200     1     Microwire (Serial I/O)
QSPI