LTC1412 Datasheet | Linear Technology

LTC1412 12-Bit, 3Msps, Sampling A/D Converter Features s s s s s s s s s s DESCRIPTION The LTC ®1412 is a 12-bit, 3Msps, sampling A/D converter. This high performance device includes a high dynamic range sample-and-hold and a precision reference. Operating from ± 5V supplies it draws only 150m W. The ± 2.5V input range is optimized for low noise and low distortion. Most high performance op amps also perform best over this range, allowing direct coupling to the analog inputs and eliminating the need for special translation circuitry. Outstanding AC performance includes 72d B S/(N + D) and 82d B SFDR at the Nyquist input frequency of 1.5MHz. The unique differential input sample-and-hold can acquire single-ended or differential input signals up to its 40MHz bandwidth. The 60d B mon mode rejection allows users to eliminate ground loops and mon mode noise by measuring signals differentially from the source. The ADC has a high speed 12-bit parallel output port. There is no pipeline delay in the conversion results. A separate convert start input and converter status signal (BUSY) ease connections to FIFOs, DSPs and microprocessors. A digital output driver power supply pin allows direct connection to 3V logic. Sample Rate: 3Msps 72d B S/(N + D) and 82d B SFDR at Nyquist ± 0.35LSB INL and ± 0.25LSB DNL (Typ) Power Dissipation: 150m W External or Internal Reference Operation True Differential Inputs Reject mon Mode Noise 40MHz Full Power Bandwidth Sampling ± 2.5V Bipolar Input Range No Pipeline Delay 28-Pin SSOP Package U APPLICATIONS s s s s s s Telemunications Digital Signal Processing Mulitplexed Data Acquisition Systems High Speed Data Acquisition Spectrum Analysis Imaging Systems , LTC and LT are registered trademarks of Linear Technology Corporation. TYPICAL APPLICATION 5V 10µF AVDD LTC1412 EFFECTIVE NUMBER OF BITS AIN+ S/H AIN- 4.0625V P 10µF VREF BUFFER 2k BUSY CS CONVST OGND 1412 TA01 OPTIONAL 3V LOGIC SUPPLY DVDD OVDD Effective Bits and...