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AD9222:  Octal, 12-Bit, 40/50/65 MSPS Serial LVDS 1.8 V A/D Converter

The AD9222 is an octal, 12-bit, 40/50/65 MSPS analog-to-digital converter (ADC) with an on-chip sample-and-hold circuit designed for low cost, low power, small size, and ease of use. The product operates at a conversion rate of up to 65 MSPS and is optimized for outstanding dynamic performance and low power in applications where a small package size is critical.

The ADC requires a single ...More

AD9222:  Octal, 12-Bit, 40/50/65 MSPS Serial LVDS 1.8 V A/D Converter

Product Description

The AD9222 is an octal, 12-bit, 40/50/65 MSPS analog-to-digital converter (ADC) with an on-chip sample-and-hold circuit designed for low cost, low power, small size, and ease of use. The product operates at a conversion rate of up to 65 MSPS and is optimized for outstanding dynamic performance and low power in applications where a small package size is critical.

The ADC requires a single 1.8 V power supply and LVPECL-/ CMOS-/LVDS-compatible sample rate clock for full performance operation. No external reference or driver components are required for many applications.

The ADC automatically multiplies the sample rate clock for the appropriate LVDS serial data rate. A data clock output (DCO) for capturing data on the output and a frame clock output (FCO) for signaling a new output byte are provided. Individual-channel power-down is supported and typically consumes less than 2 mW when all channels are disabled.

The ADC contains several features designed to maximize flexibility and minimize system cost, such as programmable clock and data alignment and programmable digital test pattern generation. The available digital test patterns include built-in deterministic and pseudorandom patterns, along with custom user-defined test patterns entered via the serial port interface (SPI).

The AD9222 is available in an RoHS compliant, 64-lead LFCSP. It is specified over the industrial temperature range of −40°C to +85°C.

Product Highlights

  1. Small Footprint. Eight ADCs are contained in a small, space-saving package.
  2. Low power of 114 mW/channel at 65 MSPS.
  3. Ease of Use. A data clock output (DCO) is provided that operates at frequencies of up to 390 MHz and supports double data rate (DDR) operation.
  4. User Flexibility. The SPI control offers a wide range of flexible features to meet specific system requirements.
  5. Pin-Compatible Family. This includes the AD9212 (10-bit) and AD9252 (14-bit).

Applications

  • Medical imaging and nondestructive ultrasound
  • Portable ultrasound and digital beam-forming systems
  • Quadrature radio receivers
  • Diversity radio receivers
  • Tape drives
  • Optical networking
  • Test equipment

    • Data Sheet, Rev. A, 8/07

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    • 8 ADCs integrated into 1 package
    • 114 mW ADC power per channel at 65 MSPS
    • SNR = 70 dB (to Nyquist)
    • ENOB = 11.3 bits
    • SFDR = 80 dBc
    • Excellent linearity: DNL = ±0.3 LSB (typical), INL = ±0.4 LSB (typical)
    • Serial LVDS (ANSI-644, default)
      Low power, reduced signal option (similar IEEE 1596.3)
    • Data and frame clock outputs
    • 325 MHz full-power analog bandwidth
    • 2 V p-p input voltage range
    • 1.8 V supply operation
    • Serial port control
      Full-chip and individual-channel power-down modes
      Flexible bit orientation
      Built-in and custom digital test pattern generation
      Programmable clock and data alignment
      Programmable output resolution
      Standby mode
    • Resolution (Bits): 12bit
    • T-Put Rate: 65MSPS
    • # Chan: 8
    • Supply V: Multi(+1.8Anlg, +1.8Dig)
    • Pwr Diss: 700mW
    • Interface: LVDS,Ser
    • Ain Range: 2 V p-p
    • SNR (dB): 70dB
    • Pkg Type: CSP

    Functional Block Diagram for AD9222

    Of Note ...

    To drive this ADC in DC-coupled applications, we suggest AD8139 or ADA4938-1. To drive this ADC in AC-coupled applications, we suggest AD8351. To select a VGA to use with this ADC, please visit our VGA selection table.

    Similar Products

    arrow View Full Interactive Product Selection Table
    Part# Bits Throughput Rate # of Inputs Operating Pwr Diss
    AD9228-65 12 65MSPS 4 510mW
    AD9627-80 12 80MSPS 2 490mW