SPT7720 Datasheet, PDF (1/10 Pages) List of Unclassifed Manufacturers – 8-BIT, 200 MSPS A/D CONVERTER

FEATURES
• Pin-compatible with AD9054
• High conversion rate: 200 MSPS
• Less than ±1/2 LSB DLE
• 7.16 effective number of bits (ENOB) at 70 MHz
• Single +5 V power supply
• Internal THA and voltage reference
• Low power: 430 mW
• 500 MHz full-power bandwidth
• 1 V_PP input range
• Single or demuxed TTL output ports
• 44-lead TQFP
SPT7720
8-BIT, 200 MSPS A/D CONVERTER
TECHNICAL DATA
APPLICATIONS
• Digital sampling oscilloscopes (DSO)
• RGB video processing
• Digital communications
• High-speed instrumentation
• Projection display systems
MAY 9, 2001
GENERAL DESCRIPTION
The SPT7720 is an 8-bit, high-speed, analog-to-digital
converter implemented in a 0.5 µm BiCMOS process. It
utilizes a folding and interpolating architecture that pro-
vides both high sample rates and low power. The device
comes complete with a high bandwidth track-and-hold
amplifier and internal voltage reference.
The SPT7720 digital inputs interface directly to TTL,
CMOS or positive ECL (PECL) logic. The digital outputs
are user selectable in either single-channel or dual-chan-
nel modes. It is a pin-compatible, direct replacement for
the AD9054. The SPT7720 is available in a 44-lead TQFP
surface mount package over the industrial temperature
range of –40 to +85 °C.
BLOCK DIAGRAM
V_REF IN
V_REF OUT
AIN
+
AIN
–
THA
ENCODE
ENCODE
Timing & Control
Quantizer
Binary
Encoder
Reference
Channel A
Channel B
8
DA₇ – DA₀
8
DB₇ – DB₀
DEMUX DS DS
Signal Processing Technologies, Inc.
4755 Forge Road, Colorado Springs, Colorado 80907, USA
Phone: [phone] Fax: [phone] Web Site: http://www.spt.com e-mail: [e-mail]