ADC081S051 8-Bit, 500kSPS, 1-Ch SAR ADC with SPI | TI.com

ADC081S051 (ACTIVE) 8-Bit, 500kSPS, 1-Ch SAR ADC with SPI

 

Description

The ADC081S051 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 ADC081S051 is fully specified over a sample rate range of 200 ksps to 500 ksps. The converter is based on 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 ADC081S051 operates with a single supply that can range from +2.7V to +5.25V. Normal power consumption using a +3.6V or +5.25V supply is 1.6 mW and 8.5 mW, respectively. The power-down feature reduces the power consumption to as low as 2.6 µW using a +5.25V supply.

The ADC081S051 is packaged in 6-lead WSON and SOT-23 packages. Operation over the industrial temperature range of −40°C to +85°C is ensured.

Features

  • Specified Over a Range of Sample Rates
  • 6-lead WSON and SOT-23 Packages
  • Variable Power Management
  • Single Power Supply with 2.7V – 5.25V Range
  • SPI™/QSPI™/MICROWIRE/DSP Compatible

Key Specifications

  • DNL: +0.06 / –0.045 LSB (Typ)
  • INL: +0.06 / –0.05 LSB (Typ)
  • SNR: 49.6 dB (Typ)
  • Power Consumption:
    • 3.6V Supply: 1.6 mW (Typ)
    • 5.25V Supply: 8.5 mW (Typ)

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
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    
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    
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    
ADC101S051 Samples not available 10     500     1     Microwire (Serial I/O)
QSPI
SPI    
-40 to 85     SOT-23 | 6