Texas Instruments Inc. expanded its line of high-speed, ultra-low power consumption analog-to-digital converters (ADCs) with eight dual-channel devices available in 12- and 14-bit resolutions at speeds from 65 to 250 MSPS .

Applications include 3G/LTE wireless base stations, portable test and measurement and software defined radio.

Key highlights :

• The 14-bit ADS4246 uses 332 mW total power at 160 MSPS; provides options down to 92 mW per channel to reduce board heating and operating costs.
• Pin-compatible 12- and 14-bit options, with speeds ranging from 65 to 250 MSPS, enable customers to move to higher resolutions and sample rates without redesigning the board.
• Pin-compatible with 11-bit, 200-MSPS ADS58C28, providing a license-free export option with up to 65 MHz of high-performance RF channel bandwidth at input frequencies over 200 MHz.
• 6-dB programmable gain option provides the flexibility needed to achieve a high signal-to-noise ratio of up to 73.6 decibel full scale (dBFS) and spurious free dynamic range (SFDR) of up to 91 dBc for high receive sensitivity in 3G/LTE wireless infrastructure.

Availability and packaging

The ADS42xx family is offered in a 64-pin QFN package. 1,000-unit pricing and availability for the new devices follow below.

65 MSPS

• 14-bit ADS4242 is available today for a suggested retail price of $28.00.
• 12-bit ADS4222 will be available in August for a suggested retail price of $18.00.

125 MSPS

• 14-bit ADS4245 is available today for a suggested retail price of $51.25.
• 12-bit ADS4225 will be available in August for a suggested retail price of $31.30.

160 MSPS

• 14-bit ADS4246 is available today for a suggested retail price of $73.50.
• 12-bit ADS4226 is available today for a suggested retail price of $39.00.

250 MSPS

• 14-bit ADS4249 will be available 3Q 2011 for a suggested retail price of $133.50.
• 12-bit ADS4229 is available today for a suggested retail price of $67.50.