LTC1414 Datasheet | Linear Technology

LTC1414 14-Bit, 2.2Msps, Sampling A/D Converter Features s s DESCRIPTIO s s s s s s Sample Rate: 2.2Msps Outstanding Spectral Purity: 80d B S/(N + D) and 95d B SFDR at 100k Hz 78d B S/(N + D) and 84d B SFDR at Nyquist Ultralow Distortion with Single-Ended or Differential Inputs ± 2.5V Bipolar Input Range Eliminates Level Shifting and Rail-to-Rail Op Amp Requirements Easy Hookup for External or Internal Reference No Pipeline Delay Power Dissipation: 175m W on ± 5V Supplies 28-Pin Narrow SSOP Package The LTC ®1414 is a 14-bit, 2.2Msps, sampling A/D converter which draws only 175m W from ± 5V supplies. This high performance ADC includes a high dynamic range sample-and-hold, a precision reference and requires no external ponents. The LTC1414’s high performance sample-and-hold has a full-scale input range of ± 2.5V. Outstanding AC performance includes 80d B S/(N + D) and 95d B SFDR with a 100k Hz input. The performance remains high at the Nyquist input frequency of 1.1MHz with 78d B S/(N + D) and 84d B SFDR. The unique differential input sample-and-hold can acquire single-ended or differential input signals up to its 40MHz bandwidth. The 70d B mon mode rejection can eliminate ground loops and mon mode noise by measuring signal differentially from the source The ADC has a microprocessor patible, 14-bit parallel output port. There is no pipline delay in the conversion results. , LTC and LT are registered trademarks of Linear Technology Corporation. U APPLICATIO S s s s s s s Telemunications Digital Signal Processing Multiplexed Data Acquisition Systems High Speed Data Acquisition Spectrum Analysis Imaging Systems TYPICAL APPLICATIO 5V 10µF AVDD LTC1414 DVDD OPTIONAL 3V LOGIC SUPPLY Effective Bits and Signal-to-Noise + Distortion vs Input Frequency 14 86 80 74 68 S/(N + D) (d B) 13 12 11 OVDD S/H AIN - 4.0625V P 10µF VREF 1µF VSS 10µF - 5V BUFFER 2k 14-BIT ADC OUTPUT BUFFERS - - - EFFECTIVE BITS AIN + D13 (MSB) 10 9 8 7 6 5 4 D0 (LSB) 2.5V...