ADC14155QML-SP - 14-Bit, 155-MSPS, 1.1-GHz Input Bandwidth Analog-to-Digital Converter (ADC)

The ADC14155QML-SP is a high-performance CMOS analog-to-digital converter capable ofconverting analog input signals into 14-bit digital words at rates up to 155 MSPS. This converteruses a differential, pipelined architecture with digital error correction and an on-chipsample-and-hold circuit to minimize power consumption and the external component count, whileproviding excellent dynamic performance. A unique sample-and-hold stage yields a full-powerbandwidth of 1.1 GHz. The ADC14155 operates from dual 3.3-V and 1.8-V power supplies and consumes967 mW of power at 155 MSPS.

The separate 1.8-V supply for the digital output interface allows lower power operationwith reduced noise. A power-down feature reduces the power consumption to 5 mW with the clock inputdisabled, while still allowing fast wake-up time to full operation. The differential inputs providea full scale differential input swing equal to 2 times the reference voltage. A stable 1-V internalvoltage reference is provided, or the ADC14155 can be operated with an external reference. TheClock mode (differential versus single-ended) and output data format (offset binary versus 2’scomplement) are pin-selectable. A duty cycle stabilizer maintains performance over a wide range ofclock duty cycles.

The ADC14155QML-SP is available in a 48-lead thermally enhanced multi-layer ceramic quadpackage and operates over the military temperature range of –55°C to +125°C.

• 5962R0626201VXC
  • Total Ionizing Dose (TID) 100 krad(Si)
  • Single Event Latch-up 120 MeV-cm²/mg
    (See Radiation Reports)
• 1.1-GHz Full-Power Bandwidth
• Internal Sample-and-Hold Circuit
• Low-Power Consumption
• Internal Precision 1-V Reference
• Single-Ended or Differential Clock Modes
• Data Ready Output Clock
• Clock Duty Cycle Stabilizer
• Dual 3.3-V and 1.8-V Supply Operation (±10%)
• Power-Down Mode
• Offset Binary or 2’s Complement Output Data Format
• 48-pin CFP Package (11.5-mm × 11.5-mm, 0.635-mm Pin-Pitch)
• Key Specifications
  • Resolution 14 Bits
  • Conversion Rate 155 MSPS
  • SNR (f_IN = 70 MHz) 70.1 dBFS (typ)
  • SFDR (f_IN = 70 MHz) 82.3 dBFS (typ)
  • ENOB (f_IN = 70 MHz) 11.3 Bits (typ)
  • Full-Power Bandwidth 1.1 GHz (typ)
  • Power Consumption 967 mW (typ)

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