ADS5423 Datasheet | Texas Instruments

.ti. SLWS160A - FEBRUARY 2005 - REVIISED JANUARY 2010 14 Bit, 80 MSPS Analog-to-Digital Converter Features D 14 Bit Resolution D 80 MSPS Maximum Sample Rate D SNR = 74 d Bc at 80 MSPS and 50 MHz IF D SFDR = 94 d Bc at 80 MSPS and 50 MHz IF D 2.2 Vpp Differential Input Range D 5 V Supply Operation D 3.3 V CMOS patible Outputs D 1.85 W Total Power Dissipation D 2s plement Output Format D On-Chip Input Analog Buffer, Track and Hold, and Reference Circuit DESCRIPTION D 52 Pin HTQFP Package With Exposed Heatsink D Pin patible to the AD6644/45 D Industrial Temperature Range = - 405C to 855C APPLICATIONS D Single and Multichannel Digital Receivers D Base Station Infrastructure D Instrumentation D Video and Imaging RELATED DEVICES D Clocking: CDC7005 D Amplifiers: OPA695, THS4509 The ADS5423 is a 14 bit 80 MSPS analog-to-digital converter (ADC) that operates from a 5 V supply, while providing 3.3 V CMOS patible digital outputs. The ADS5423 input buffer isolates the internal switching of the on-chip Track and Hold (T&H) from disturbing the signal source. An internal reference generator is also provided to further simplify the system design. The ADS5423 has outstanding low noise and linearity, over input frequency. With only a 2.2 VPP input range, simplifies the design of multicarrier applications, where the carriers are selected on the digital domain. The ADS5423 is available in a 52 pin HTQFP with heatsink package and is pin patible to the AD6645. The ADS5423 is built on state of the art Texas Instruments plementary bipolar process (Bi3) and is specified over full industrial temperature range (- 40°C to 85°C). FUNCTIONAL BLOCK DIAGRAM AVDD DRVDD AIN AIN A1 TH1 TH2 +Σ A2 - TH3 +Σ A3 ADC3 -...