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11-Bit, 125MSPS, 1.1GHz Input Bandwidth Analog-to-Digital Converter (ADC)


Package | PIN: RHS | 48
Temp: S (-45 to 85)
Carrier: Cut Tape
Qty Price
1-9 $26.18
10-24 $24.47
25-99 $23.70
100-249 $21.06
250-499 $20.91
500-749 $19.67
750-999 $17.66
1000+ $17.60


  • 1.1 GHz Full Power Bandwidth
  • Internal Sample-and-Hold Circuit
  • Low Power Consumption
  • Internal Precision 1.0V Reference
  • Single-Ended or Differential Clock Modes
  • Clock Duty Cycle Stabilizer
  • Dual +3.3V and +1.8V Supply Operation
  • Power-Down and Sleep Modes
  • Offset Binary or 2's Complement Output Data Format
  • Pin-Compatible: ADC14155, ADC12C170, ADC11C170
  • 48-pin WQFN Package, (7x7x0.8mm, 0.5mm Pin-Pitch)

Key Specifications

  • Resolution 11 Bits
  • Conversion Rate 125 MSPS
  • SNR (fIN = 70 MHz) 65.5 dBFS (typ)
  • SFDR (fIN = 70 MHz) 88.2 dBFS (typ)
  • ENOB (fIN = 70 MHz) 10.5 bits (typ)
  • Full Power Bandwidth 1.1 GHz (typ)
  • Power Consumption 608 mW (typ)

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Texas Instruments  ADC11C125CISQ/NOPB

The ADC11C125 is a high-performance CMOS analog-to-digital converter capable of converting analog input signals into 11-Bit digital words at rates up to 125 Mega Samples Per Second (MSPS). This converter uses a differential, pipelined architecture with digital error correction and an on-chip sample-and-hold circuit to minimize power consumption and the external component count, while providing excellent dynamic performance. A unique sample-and-hold stage yields a full-power bandwidth of 1.1 GHz. The ADC11C125 operates from dual +3.3V and +1.8V power supplies and consumes 608 mW of power at 125 MSPS.

The separate +1.8V supply for the digital output interface allows lower power operation with reduced noise. A power-down feature reduces the power consumption to 5 mW while still allowing fast wake-up time to full operation. In addition there is a sleep feature which consumes 50 mW of power and has a faster wake-up time.

The differential inputs provide a full scale differential input swing equal to 2 times the reference voltage. A stable 1.0V internal voltage reference is provided, or the ADC11C125 can be operated with an external reference.

Clock mode (differential versus single-ended) and output data format (offset binary versus 2's complement) are pin-selectable. A duty cycle stabilizer maintains performance over a wide range of input clock duty cycles.

The ADC11C125 is pin compatible with the ADC12C170 and the ADC14155.

It is available in a 48-lead WQFN package and operates over the industrial temperature range of −40°C to +85°C.