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ADC14155QML Datasheet, PDF (1/26 Pages) National Semiconductor (TI) – 14-Bit, 155 MSPS, 1.1 GHz Bandwidth A/D Converter | |||
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ADC14155QML
June 15, 2009
14-Bit, 155 MSPS, 1.1 GHz Bandwidth A/D Converter
General Description
The ADC14155 is a high-performance CMOS analog-to-dig-
ital 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 sam-
ple-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 al-
lows 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 com-
plement) 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 thermally ehanced
mult-layer ceramic quad package and operates over the mil-
itary temperature range of -55°C to +125°C.
Features
â Total Ionizing Dose
100 krad(Si)
â Single Event Latch-up
120 MeV-cm2/mg
â 1.1 GHz Full Power Bandwidth
â Internal sample-and-hold circuit
â Low power consumption
â Internal precision 1.0V reference
â Single-ended or Differential clock modes
â Data Ready output clock
â Clock Duty Cycle Stabilizer
â Dual +3.3V and +1.8V supply operation (+/- 10%)
â Power-down mode
â Offset binary or 2's complement output data format
â 48-pin Cer Quad package, (11.5mm x 11.5mm, 0.635mm
pin-pitch)
Key Specifications
â Resolution
â Conversion Rate
â SNR (fIN = 70 MHz)
â SFDR (fIN = 70 MHz)
â ENOB (fIN = 70 MHz)
â Full Power Bandwidth
â Power Consumption
14 Bits
155 MSPS
70.1 dBFS (typ)
82.3 dBFS (typ)
11.3 bits (typ)
1.1 GHz (typ)
967 mW (typ)
Applications
â High IF Sampling Receivers
â Power Amplifier Linearization
â Multi-carrier, Multi-mode Receivers
â Test and Measurement Equipment
â Communications Instrumentation
â Radar Systems
Ordering Information
NS Part Number
ADC14155W-MLS
ADC14155WRQV
(Note 15)
SMD Part Number
TBD
NS Package Number
EL48A
EL48A
Package Description
48L Cer Quad
48L Cer Quad
© 2009 National Semiconductor Corporation 202107
www.national.com
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