ADC08200
8-Bit, 20 MSPS to 200 MSPS, 1.05 mW/MSPS A/D
Converter
General Description
The ADC08200 is a low-power, 8-bit, monolithic analog-to-
digital converter with an on-chip track-and-hold circuit. Opti-
mized for low cost, low power, small size and ease of use,
this product operates at conversion rates up to 230 MSPS
while consuming just 1.05 mW per MHz of clock frequency,
or 210 mW at 200 MSPS. Raising the PD pin puts the
ADC08200 into a Power Down mode where it consumes
1mW.
The unique architecture achieves 7.3 Effective Bits with
50 MHz input frequency. The ADC08200 is resistant to
latch-up and the outputs are short-circuit proof. The top and
bottom of the ADC08200’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 3V or
2.5V logic. The digital inputs (CLK and PD) are TTL/CMOS
compatible.
The ADC08200 is offered in a 24-lead plastic package
(TSSOP) and is specified over the industrial temperature
range of −40˚C to +85˚C.
Features
n Single-ended input
n Internal sample-and-hold function
n Low voltage (single +3V) operation
n Small package
n Power-down feature
Key Specifications
j Resolution: 8 bits
j Maximum sampling frequency: 200 MSPS (min)
j DNL: ±0.4 LSB (typ)
j ENOB (f
IN
= 50 MHz): 7.3 bits (typ)
j THD (f
IN
= 50 MHz): −61 dB (typ)
j No missing codes Guaranteed
j Power Consumption
Operating 1.05 mW/MSPS (typ)
Power down 1 mW (typ)
Applications
n Flat panel displays
n Projection systems
n Set-top boxes
n Battery-powered instruments
n Communications
n Medical scan converters
n X-ray imaging
n High speed viterbi decoders
n Astronomy
Pin Configuration
20017901
November 2002
ADC08200
8-Bit,
20
MSPS
to
200
MSPS,
1.05
mW/MSPS
A/D
Converter
© 2002 National Semiconductor Corporation DS200179 www.national.com