LTC1745 Datasheet | Linear Technology

.. Low Noise,12-Bit, 25Msps ADC Features s s s s s s s s s DESCRIPTIO Sample Rate: 25Msps 72.5d B SNR and 91d B SFDR (3.2V Range) 71d B SNR and 96d B SFDR (2V Range) No Missing Codes Single 5V Supply Low Power Dissipation: 380m W Selectable Input Ranges: ±1V or ±1.6V 240MHz Full Power Bandwidth S/H Pin patible Family 25 Msps: LTC1746 (14-Bit), LTC1745 (12-Bit) 50 Msps: LTC1744 (14-Bit), LTC1743 (12-Bit) 65 Msps: LTC1742 (14-Bit), LTC1741 (12-Bit) 80 Msps: LTC1748 (14-Bit), LTC1747 (12-Bit) The LTC ®1745 is a 25Msps, sampling 12-bit A/D converter designed for digitizing high frequency, wide dynamic range signals. Pin selectable input ranges of ±1V and ±1.6V along with a resistor programmable mode allow the LTC1745’s input range to be optimized for a wide variety of applications. The LTC1745 is perfect for demanding munications applications with AC performance that includes 72.5d B SNR and 91d B spurious free dynamic range. Ultralow jitter of 0.3ps RMS allows undersampling with excellent noise performance. DC specs include ±1LSB INL maximum and ± 0.75LSB DNL over temperature. The digital interface is patible with 5V, 3V and 2V logic systems. The ENC and ENC inputs may be driven differentially from PECL, GTL and other low swing logic families or from single-ended TTL or CMOS. The low noise, high gain ENC and ENC inputs may also be driven by a sinusoidal signal without degrading performance. A separate digital output power supply can be operated from 0.5V to 5V, making it easy to connect directly to low voltage DSPs or FIFOs. The TSSOP package with a flow-through pinout simplifies the board layout. U APPLICATIO S s s s s s s Telemunications Medical Imaging Receivers Base Stations Spectrum Analysis Imaging Systems , LTC and LT are registered trademarks of Linear Technology Corporation. BLOCK DIAGRA AIN+ ±1V DIFFERENTIAL ANALOG INPUT 25Msps, 12-Bit ADC with a ± 1V Differential Input Range OVDD OF D11 D0 CLKOUT 0.1µF 0.5V TO 5V...