ADC14155 Datasheet, PDF (1/28 Pages) National Semiconductor (TI) – 14-Bit, 155 MSPS, 1.1 GHz Bandwidth A/D Converter

ADC14155
www.ti.com
SNAS350I – APRIL 2006 – REVISED APRIL 2013
ADC14155 14-Bit, 155 MSPS, 1.1 GHz Bandwidth A/D Converter
Check for Samples: ADC14155
FEATURES
1
•2 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
• Data Ready Output Clock
• Clock Duty Cycle Stabilizer
• Dual +3.3V and +1.8V Supply Operation
(+/- 10%)
• Power-Down Mode
• Offset Binary or 2's Complement Output Data
Format
• 48-pin WQFN Package, (7x7x0.8mm, 0.5mm
Pin-Pitch)
APPLICATIONS
• High IF Sampling Receivers
• Wireless Base Station Receivers
• Power Amplifier Linearization
• Multi-carrier, Multi-mode Receivers
• Test and Measurement Equipment
• Communications Instrumentation
• Radar Systems
KEY SPECIFICATIONS
• Resolution: 14 Bits
• Conversion Rate: 155 MSPS
• SNR (f_IN = 70 MHz): 71.3 dBFS (typ)
• SFDR (f_IN = 70 MHz): 87.0 dBFS (typ)
• ENOB (f_IN = 70 MHz): 11.5 bits (typ)
• Full Power Bandwidth: 1.1 GHz (typ)
• Power Consumption: 967 mW (typ)
DESCRIPTION
The ADC14155 is a high-performance CMOS analog-
to-digital converter capable of converting analog input
signals into 14-bit digital words at rates up to 155
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
ADC14155 operates from dual +3.3V and +1.8V
power supplies and consumes 967 mW of power at
155 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 with the clock input disabled,
while still allowing fast wake-up time to full operation.
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 ADC14155 can be operated with an external
reference.
The ADC14155 can be configured for either single-
ended or differential operation. 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 clock duty cycles.
The ADC14155 is available in a 48-lead WQFN
package and operates over the industrial temperature
range of −40°C to +85°C.
1
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2
PRODUCTION DATA information is current as of publication date.
Products conform to specifications per the terms of the Texas
Instruments standard warranty. Production processing does not
necessarily include testing of all parameters.
Copyright © 2006–2013, Texas Instruments Incorporated