ADC08B200 Datasheet, PDF (1/30 Pages) National Semiconductor (TI) – 8-Bit, 200 MSPS A/D Converter with Capture Buffer

June 2008
ADC08B200
8-Bit, 200 MSPS A/D Converter with Capture Buffer
General Description
The ADC08B200 is a high speed analog-to-digital converter
(ADC) with an integrated capture buffer. The 8-bit, 200 MSPS
A/D core is based upon the proven ADC08200 with integrated
track-and-hold and is optimized for low power consumption.
This device contains a selectable size capture buffer of up to
1,024 bytes that allows fast capture of an input signal with a
slower readout rate. An on-chip clock PLL circuit provides the
option of on-chip clock rate multiplication to provide the high
speed sampling clock.
The ADC08B200 is resistant to latch-up and the outputs are
short-circuit proof. The top and bottom of the ADC08B200's
reference ladder are available for connections, enabling a
wide range of input possibilities. The digital outputs are TTL/
CMOS compatible with a separate output power supply pin to
support interfacing with 2.7V to 3.3V logic. The digital inputs
and outputs are low voltage TTL/CMOS compatible and the
output data format is straight binary.
The ADC08B200 is offered in a 48-pin plastic package
(TQFP) and is specified over the extended industrial temper-
ature range of −40°C to +105°C. An evaluation board is
available to assist in the easy evaluation of the ADC08B200.
Features
■ ^{Single-ended input}
■ ^{Selectable capture buffer size}
■ ^{PLL for clock multiplication}
■ ^{Reference Ladder Top and Bottom accessible}
■ ^{Linear power scaling with sample rate}
■ ^{FPGA training pattern}
■ ^{Power-down feature}
Key Specifications
(PLL Bypassed)
■ ^Resolution
■ ^{Maximum sampling frequency}
■ ^DNL
■ ^{ENOB (f}_IN^{= 49 MHz)}
■ ^{THD (f}_IN^{= 49 MHz)}
■ ^{Power Consumption}
— Operating, 50 MHz Input
— Power Down
8 Bits
200 MSPS (min)
±0.4 LSB (typ)
7.2 bits (typ)
−53 dBc (typ)
2 mW / Msps (typ)
2.15 mW (typ)
Applications
■ ^{Laser Ranging}
■ ^RADAR
■ ^{Pulse Capturings}
Pin Configuration
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