Date: 04/02/2010

Low-power, 500-kSPS, 16-bit ADCs from TI

Texas Instruments has introduced the ADS8331 and ADS8332, a new 500-kSPS, analog-to-digital converter (ADC) that includes a 16-bit capacitor-based successive approximation register (SAR) with inherent sample and hold. The new devices are suitable for multi-channel data acquisition applications such as test and measurement, portable, industrial and medical.

The ADS8331 integrates a unipolar, 4-to-1 multiplexer (mux) input, and the ADS8332 includes a unipolar 8-to-1 input mux.

The key features of these ADCs are,

AC performance with 91.5-dB signal-to-noise ratio (SNR)
101-dB spurious free dynamic range (SFDR)
Other hardware features such as On-Chip Conversion Clock (CCLK), software/hardware reset, programmable status/polarity EOC/INT, daisy-chain mode, and global CONVST (Independent of CS)
Operating supply voltage ranges from 2.7 V to 5.5 V (analog)
Operating supply voltage ranges from 1.65 V to 5.5 V (digital)
Pin-compatible flexibility between four and eight channels

Both the ADCs offer a high-speed, wide-voltage serial interface and are capable of daisy-chain operation when multiple converters are used.

Package:
ADS8331: 24-pin, 4-mm x 4-mm QFN package
ADS8332: 24-pin TSSOP (PW) package
Price:
ADS8331: Each $5.50 for 1k pieces
ADS8332: Each $6.50 for 1k pieces
Availability: Now

For more details visit www.ti.com