LTC1402 Datasheet | Linear Technology

Serial 12-Bit, 2.2Msps Sampling ADC with Shutdown Features s Sample Rate: 2.2Msps s 72d B S/(N + D) and - 89d B THD at Nyquist s Power Dissipation: 90m W (Typ) s 80MHz Full Power Bandwidth Sampling s No Missing Codes over Temperature s Available in 16-Pin Narrow SSOP Package s Single Supply 5V or ±5V Operation s Nap Mode with Instant Wake-Up: 15m W s Sleep Mode: 10µW s True Differential Inputs Reject mon Mode Noise s Input Range (1m V/LSB): 0V to 4.096V or ±2.048V s Internal Reference Can Be Overdriven Externally s 3-Wire Interface to DSPs and Processors (SPI and MICROWIRETM patible) U APPLICATIO S s Telemunications s High Speed Data and Signal Acquisition s Digitally Multiplexed Data Acquisition Systems s Digital Radio Receivers s Spectrum Analysis s Low Power and Battery-Operated Systems s Handheld or Portable Instruments s Imaging Systems , LTC and LT are registered trademarks of Linear Technology Corporation. MICROWIRE is a trademark of National Semiconductor Corp. DESCRIPTIO The LTC®1402 is a 12-bit, 2.2Msps sampling A/D converter. This high performance device includes a high dynamic range sample-and-hold and a precision reference. It operates from a single 5V supply or dual ±5V supplies and draws only 90m W from 5V. The versatile differential input offers a unipolar range of 4.096V and a bipolar range of ±2.048V for dual supply systems where high performance op amps perform best, eliminating the need for special translation circuitry. The high mon mode rejection allows users to eliminate ground loops and mon mode noise by measuring signals differentially from the source. Outstanding AC performance includes 72d B S/(N + D) and - 93d B SFDR at the Nyquist input frequency of 1.1MHz with dual ±5V supplies and - 84d B SFDR with a single 5V supply. The LTC1402 has two power saving modes: Nap and Sleep. Nap mode consumes only 15m W of power and can wake up and convert immediately. In Sleep mode, it typically consumes 10µW of power. Upon power-up...