ADC works in portable medical, comms app

Milpitas, Calif. — Linear Technology introduced the LTC2356-14, a 14-bit analog-to-digital converter (ADC) that communicates via an SPI-compatible serial interface at output rates up to 3.5 Msps. The LTC2356-14 operates from a single +3.3-V supply, draws 18-mW power at the maximum conversion rate, and is available in a 10-pin MSOP package. Markets include high speed, portable applications including communications, medical instrumentation, and data acquisition.

The LTC2356-14 achieves 72.3-dB SINAD and 82-dB SFDR at 1.4MHz. While measuring +/-1.25-V bipolar inputs differentially, the LTC2356-14's -60dB common mode rejection ratio allows users to eliminate noise. When the ADC is not converting, power dissipation can be reduced to 4-mW in nap mode, with the internal 2.5-V reference remaining active; and 13-μW with all internal circuitry powered down in sleep mode.

Availability: Now
Pricing: $7.95 each in 1,000-piece quantities
Data Sheet: click here

Linear Technology, 408-432-1900,

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