ADC08B3000_08 Datasheet, PDF (1/44 Pages) National Semiconductor (TI) – 8-bIT, 3gsps, High Performance, Low Power A/D Converter with 4K Buffer

January 16, 2008
ADC08B3000
8-Bit, 3 GSPS, High Performance, Low Power A/D
Converter with 4K Buffer
General Description
The ADC08B3000 is a single, low power, high performance
CMOS analog-to-digital converter that digitizes signals to 8
bits resolution at sample rates up to 3.4 Gigasamples Per
Second, (Gsps). Consuming a typical 1.6 Watts at 3 Gsps
from a single 1.9 Volt supply, this device is guaranteed to have
no missing codes over the full operating temperature range.
The unique folding and interpolating architecture, the fully dif-
ferential comparator design, the innovative design of the in-
ternal sample-and-hold amplifier and the calibration scheme
enable an excellent response of all dynamic parameters up
to Nyquist, producing a high 7.1 Effective Number Of Bits,
(ENOB), with a 748 MHz input signal and a 3 GHz sample
rate while providing a 10^-18 Code Error Rate. A sample rate
of 3 Gsps is achieved by interleaving two ADCs, each oper-
ating at 1.5 Gsps. Output formatting is offset binary. The
device contains a 4K Capture Buffer with output on two 8-bit
Low Voltage CMOS (LVCMOS) output buses at rates up to
200MHz.
The converter typically consumes less than 25 mW in the
Power Down Mode and is available in a 128-lead, thermally
enhanced exposed pad LQFP and operates over the Indus-
trial (-40°C ≤ T_A ≤ +85°C) temperature range.
Features
■ ^{Single +1.9V ±0.1V Operation}
■ ^{Choice of SDR or DDR output clocking}
■ ^{Internal selectable 4K Data Buffer}
■ ^{Serial Interface for Extended Control}
■ ^{Adjustment of Input Full-Scale Range, Offset and Clock}
Phase
■ ^{Duty Cycle Corrected Sample Clock}
■ ^{Test Pattern Output Capability}
Key Specifications
■ ^Resolution
■ ^{Max Conversion Rate}
■ ^{Code Error Rate}
■ ^{ENOB @ 748 MHz Input}
■ ^{SNR @ 748 MHz}
■ ^{Full Power Bandwidth}
■ ^{Power Consumption}
— Full Power Capture
— Power Down Mode
8 Bits
3 Gsps (min)
10^-18 (typ)
7.1 Bits (typ)
44.9 dB (typ)
3 GHz (typ)
1.6 W (typ)
25 mW (typ)
Applications
■ ^{Distance Ranging}
■ ^{Test and Measurement}
Ordering Information
Industrial Temperature Range
(-40°C < T_A < +85°C)
ADC08B3000CIYB
ADC08B3000RB
NS Package
128-Pin Exposed Pad LQFP
Development System
© 2008 National Semiconductor Corporation 201601
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