LTC1403A Datasheet | Linear Technology

LTC1403/LTC1403A Serial 12-Bit/14-Bit, 2.8Msps Sampling ADCs with Shutdown Features nn 2.8Msps Conversion Rate nn Low Power Dissipation: 14m W nn 3V Single Supply Operation nn - 40°C to 125°C Guaranteed Operation nn 2.5V Internal Bandgap Reference can be Overdriven nn 3-Wire Serial Interface nn Sleep (10µW) Shutdown Mode nn Nap (3m W) Shutdown Mode nn 80d B mon Mode Rejection nn 0V to 2.5V Unipolar Input Range nn Tiny 10-Lead MS Package Applications nn Automotive nn munications nn Data Acquisition Systems nn Uninterrupted Power Supplies nn Multiphase Motor Control nn Multiplexed Data Acquisition Description The LTC®1403/LTC1403A are 12-bit/14-bit, 2.8Msps serial ADCs with differential inputs. The devices draw only 4.7m A from a single 3V supply and e in a tiny 10-lead MS package. A Sleep shutdown feature lowers power consumption to 10µW. The bination of speed, low power and tiny package makes the LTC1403/LTC1403A suitable for high speed, portable applications. The 80d B mon mode rejection allows users to eliminate ground loops and mon mode noise by measuring signals differentially from the source. The devices convert 0V to 2.5V unipolar inputs differentially. The absolute voltage swing for +AIN and - AIN extends from ground to the supply voltage. The serial interface sends out the conversion results during the 16 clock cycles following CONV↑ for patibility with standard serial interfaces. If two additional clock cycles for acquisition time are allowed after the data stream in between conversions, the full sampling rate of 2.8Msps can be achieved with a 50.4MHz clock. L, LT, LTC, LTM, Linear Technology and the Linear logo are registered trademarks and Linear View and Soft Span are trademarks of Linear Technology Corporation. All other trademarks are the property of their respective owners. Block Diagram 10µF 3V AIN+ AIN- 10F 1+ S&H 2- 7 VDD 14-BIT ADC 3 VREF 4 GND 5 2.5V REFERENCE 6 11 EXPOSED PAD THREESTATE SERIAL OUTPUT PORT 8...