TI Data Converters ADS6145 Low Power 14-bit 125MSPS ADC with selectable parallel CMOS or LVDS outputs

• Maximum Sample Rate: 125 MSPS
• 14-Bit Resolution with No Missing Codes
• 3.5 dB Coarse Gain and up to 6 dB Programmable Fine Gain for SNR/SFDR Trade-Off
• Parallel CMOS and Double Data Rate (DDR) LVDS Output Options
• Supports Sine, LVCMOS, LVPECL, LVDS Clock Inputs and Clock Amplitude Down to 400 mV_PP
• Clock Duty Cycle Stabilizer
• Internal Reference with Support for External Reference
• No External Decoupling Required for References
• Programmable Output Clock Position and Drive Strength to Ease Data Capture
• 3.3 V Analog and 1.8 V to 3.3 V Digital Supply
• 32-QFN Package (5 mm §¹ 5 mm)
• Pin compatible 12-bit family (ADS612X)
• APPLICATIONS
  • Wireless Communications Infrastructure
  • Software Defined Radio
  • Power Amplifier Linearization
  • 802.16d/e
  • Test and Measurement Instrumentation
  • High Definition Video
  • Medical Imaging
  • Radar Systems

ADS6145/ADS6144/ADS6143/ADS6142 (ADS614X) is a family of 14-bit A/D converters with sampling frequency up to 125 MSPS. It combines high performance and low power consumption in a compact 32 QFN package. Using an internal high bandwidth sample and hold, and a low jitter clock buffer helps to achieve high SNR and high SFDR even at high input frequencies.

It features coarse and fine gain options that are used to improve SFDR performance at lower full-scale analog input ranges.

The digital data outputs is either parallel CMOS or DDR LVDS (Double Data Rate). Several features exist to ease data capture such as ¡ª controls for output clock position and output buffer drive strength, LVDS current and internal termination programmability.

The output interface type, gain and other functions is programmed using a 3-wire serial interface. Alternatively, some of these functions are configured using dedicated parallel pins, so that the device comes up in the desired state after power-up.

ADS614X includes internal references, while eliminating the traditional reference pins and associated external decoupling. External reference mode is also supported.

The device is specified over the industrial temperature range (-40¡ãC to 85¡ãC).