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XRD6414AIQ Datasheet

  • XRD6414AIQ

  • CMOS 10-Bit, 20 MSPS, High Speed Analog-to-Digital Converter...

  • 16頁

  • EXAR   EXAR

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XRD6414
CMOS 10-Bit, 20 MSPS, High Speed
Analog-to-Digital Converter
TM
...the analog plus company
with 4:1 Input Analog Multiplexer
March 1997鈥?
FEATURES
D
10-Bit Resolution
D
20MHz Sampling Rate
D
4:1 Analog Input Multiplexer
D
Internal S/H Function
D
Single 5.0V Power Supply
D
V
IN
DC Range: 0V to V
DD
D
V
REF
DC Range: 1V to V
DD
D
Low Power: 120mW (typ)
D
Three-State Digital Outputs
D
Power Down: 1.5mW (typ) Power Dissipation
D
ESD Protection: 2000V Minimum
D
For 3V Operation Refer to XRD64L14
APPLICATIONS
D
Multiplexed Data Acquisition
D
Precision Scanners
D
Digital Color Copiers
D
Test and Scientific Instruments
D
Digital Cameras
D
Medical Imaging
D
IR Imaging
BENEFITS
D
Complete Analog-to-Digital Converter (ADC) that
Requires no External Active Components
D
Small Outline Package to Reduce Board Space
D
Low Power Dissipation
D
Easy to Use Rugged Design
GENERAL DESCRIPTION
The XRD6414 is a 10-bit, 20 MSPS, Analog-to-Digital
Converter (ADC) with a 4:1 Analog Input Multiplexer for
applications that require high speed and high accuracy.
Designed using an advanced CMOS process, this part
offers excellent performance, low power consumption
and latch-up free operation.
The XRD6414 uses a subranging architecture to maintain
low power consumption at high conversion rates. Our
proprietary comparator design achieves a low analog
input capacitance. The input circuitry of the XRD6414
includes an on-chip S/H function that allows the product to
digitize analog input signals between AGND and AV
DD
.
The XRD6414 can be placed into power down (stand-by)
mode, reducing the power dissipation to 1.5mW (typical)
by a digitally controlled pin.
Providing external reference voltages allows easy
interface to any input signal range between AGND and
AV
DD
. This also allows the system to calibrate out zero
scale and full scale errors by adjusting V
RT
and V
RB
. A
separate power supply pin, DV
DD,
sets the output logic
levels for 3V or 5V interface.
This device operates from a single 5.0V supply. Power
consumption from a 5.0V supply is typically 120mW at
F
S
=15MHz. For 3.3V power supply operation refer to
XRD64L14.
ORDERING INFORMATION
Operating
Temperature Range
鈥?0擄C to +85擄C
Part No.
XRD6414AIQ
Package
32 Lead TQFP (7 x 7 x 1.4 mm)
Rev. 1.00
E1996
EXAR Corporation, 48720 Kato Road, Fremont, CA 94538
z
(510) 668-7000
z
FAX (510) 668-7017

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