ADC10461_15 Datasheet, PDF (1/23 Pages) Texas Instruments – 10-Bit 600 ns A/D Converter with Input Multiplexer and Sample/Hold

ADC10461, ADC10462, ADC10464
www.ti.com
SNAS074E – JUNE 1999 – REVISED MARCH 2013
ADC10461/ADC10462/ADC10464 10-Bit 600 ns A/D Converter with Input Multiplexer and
Sample/Hold
Check for Samples: ADC10461, ADC10462, ADC10464
FEATURES
1
•2 Built-In Sample-and-Hold
• Single +5V Supply
• No External Clock Required
• Speed Adjust Pin for Faster Conversions
(ADC10462 and ADC10464)
APPLICATIONS
• Digital Signal Processor Front Ends
• Instrumentation
• Disk Drives
• Mobile Telecommunications
KEY SPECIFICATIONS
• Conversion Time 600 ns (Typical)
• Sampling Rate 800 kHz
• Low Power Consumption 235 mW (Max)
• Total Harmonic Distortion (50 kHz) −60 dB
(Max)
• No Missing Codes Over Temperature
DESCRIPTION
NOTE: The ADC10461 and ADC10462 are obsolete.
They are described here for reference only.
Using an innovative, patented multistep (U.S. Patent
Number 4918449) conversion technique, these 10-bit
CMOS analog-to-digital converters offer sub-
microsecond conversion times yet dissipate a
maximum of only 235 mW. These converters perform
10-bit conversion in two lower-resolution “flashes”,
yielding a fast A/D without the cost, power
consumption, and other problems associated with
true flash approaches. Dynamic performance (THD,
S/N) is ensured.
The analog input voltage is sampled and held by an
internal sampling circuit. Input signals at frequencies
from DC to over 200 kHz can, therefore, be digitized
accurately without the need for an external sample-
and-hold circuit.
The ADC10462 and ADC10464 include a “speed-up”
pin. Connecting an external resistor between this pin
and ground reduces the typical conversion time to as
little as 350 ns with only a small increase in linearity
error.
For ease of interface to microprocessors, the
ADC10461, ADC10462, and ADC10464 have been
designed to appear as a memory location or I/O port
without the need for external interface logic.
Simplified Block Diagram
*ADC10461, **ADC10462 and ADC10464, ***ADC10464; These devices are obsolete; shown for reference only.
1
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Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.
All trademarks are the property of their respective owners.
2
PRODUCTION DATA information is current as of publication date.
Products conform to specifications per the terms of the Texas
Instruments standard warranty. Production processing does not
necessarily include testing of all parameters.
Copyright © 1999–2013, Texas Instruments Incorporated