ADC10D020_15 Datasheet, PDF (1/39 Pages) Texas Instruments – ADC10D020 Dual 10-Bit, 20 MSPS, 150 mW A/D Converter

ADC10D020
www.ti.com
SNAS143D – SEPTEMBER 2001 – REVISED MARCH 2013
ADC10D020 Dual 10-Bit, 20 MSPS, 150 mW A/D Converter
Check for Samples: ADC10D020
FEATURES
1
•2 Internal Sample-and-Hold
• Internal Reference Capability
• Dual Gain Settings
• Offset Correction
• Selectable Offset Binary or 2's Complement
Output
• Multiplexed or Parallel Output Bus
• Single +2.7V to 3.6V Operation
• Power Down and Standby Modes
APPLICATIONS
• Digital Video
• CCD Imaging
• Portable Instrumentation
• Communications
• Medical Imaging
• Ultrasound
KEY SPECIFICATIONS
• Resolution 10 Bits
• Conversion Rate 20 MSPS
• ENOB 9.5 Bits (typ)
• DNL 0.35 LSB (typ)
• Conversion Latency Parallel Outputs 2.5 Clock
Cycles
• Multiplexed Outputs, I Data Bus 2.5 Clock
Cycles
• Multiplexed Outputs, Q Data Bus 3 Clock
Cycles
• PSRR 90 dB
• Power Consumption—Normal Operation 150
mW (typ)
• Power Down Mode <1 mW (typ)
• Fast Recovery Standby Mode 27 mW (typ)
DESCRIPTION
The ADC10D020 is a dual low power, high
performance CMOS analog-to-digital converter that
digitizes signals to 10 bits resolution at sampling
rates up to 30 MSPS while consuming a typical 150
mW from a single 3.0V supply. No missing codes is
ensured over the full operating temperature range.
The unique two stage architecture achieves 9.5
Effective Bits over the entire Nyquist band at 20 MHz
sample rate. An output formatting choice of offset
binary or 2's complement coding and a choice of two
gain settings eases the interface to many systems.
Also allowing great flexibility of use is a selectable 10-
bit multiplexed or 20-bit parallel output mode. An
offset correction feature minimizes the offset error.
To ease interfacing to most low voltage systems, the
digital output power pins of the ADC10D020 can be
tied to a separate supply voltage of 1.5V to 3.6V,
making the outputs compatible with other low voltage
systems. When not converting, power consumption
can be reduced by pulling the PD (Power Down) pin
high, placing the converter into a low power state
where it typically consumes less than 1 mW and from
which recovery is less than 1 ms. Bringing the STBY
(Standby) pin high places the converter into a
standby mode where power consumption is about 27
mW and from which recovery is 800 ns.
The ADC10D020's speed, resolution and single
supply operation makes it well suited for a variety of
applications, including high speed portable
applications.
Operating over the industrial (−40° ≤ T_A ≤ +85°C)
temperature range, the ADC10D020 is available in a
48-pin TQFP package. An evaluation board is
available to ease the design effort.
1
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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 © 2001–2013, Texas Instruments Incorporated