KAD5512P-50

12-Bit, 500MSPS Single-Channel ADC, with LVDS/LVCMOS Outputs

OVERVIEW

The KAD5512P-50 is a low-power, high performance, 12-bit, 500MSPS analog-to-digital converter designed with Intersil’s proprietary FemtoCharge™ technology on a standard CMOS process. The KAD5512P-50 is part of a pin-compatible portfolio of 10, 12 and 14-bit A/Ds with sample rates ranging from 125MSPS to 500MSPS.

The device utilizes two time-interleaved 12-bit, 250MSPS A/D cores to achieve the ultimate sample rate of 500MSPS. A single 500MHz conversion clock is presented to the converter, and all interleave clocking is managed internally.

A Serial Peripheral Interface (SPI) port allows for extensive configurability, as well as fine control of matching characteristics (gain, offset, skew) between the two converter cores. These adjustments allow the user to minimize spurs associated with the interleaving process.

Digital output data is presented in selectable LVDS or CMOS formats. The KAD5512P-50 is available in a 72 Ld QFN package with an exposed paddle. Performance is specified across the full industrial temperature range (-40°C to +85°C).

KEY FEATURES

  • Programmable gain, offset and skew control
  • 1.3GHz analog input bandwidth
  • 60fs clock jitter
  • Over-range indicator
  • Selectable clock divider: ÷1 or ÷2
  • Clock phase selection
  • Nap and sleep modes
  • Two’s complement, gray code or binary data format
  • DDR LVDS-compatible or LVCMOS outputs
  • Programmable built-in test patterns
  • Single-supply 1.8V operation
  • Pb-free (RoHS compliant)

    Key Specifications
  • SNR = 65.9dBFS for fIN = 105MHz (-1dBFS)
  • SFDR = 82.0dBc for fIN = 105MHz (-1dBFS)
  • Total power consumption = 432mW

BLOCK DIAGRAM

 Block Diagram

PARAMETRICS

Parameters
KAD5512P-50
Basic Information
Production Status
Mass Production
# of Devices/ Channels
1
Resolution Bits
12
Max Conversion Rate MSPS
500
SNR (dbFS)
65.9
SFDR (dB)
87.3
Power Consumption (mW)
432
Input BW
1300 MHz
Input VIN (Range) (VPP, differential)
1.47
Output Interface
LVDS/LVCMOS
Integral NonLinearity LSB
2
Differential NonLinearity LSB
0.8
Analog Supply Voltage V
1.8
Digital Supply Voltage V
1.8
Qualification Level
Standard
Temperature Range
-40 to +85

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