XRD8799AIQ Exar Corporation, XRD8799AIQ Datasheet

no-image

XRD8799AIQ

Manufacturer Part Number
XRD8799AIQ
Description
IC ADC 10BIT 2MSPS 44PQFP
Manufacturer
Exar Corporation
Datasheet

Specifications of XRD8799AIQ

Number Of Bits
10
Sampling Rate (per Second)
2M
Data Interface
Parallel
Number Of Converters
8
Power Dissipation (max)
450mW
Voltage Supply Source
Analog and Digital
Operating Temperature
-40°C ~ 85°C
Mounting Type
Surface Mount
Package / Case
44-BQFP
Lead Free Status / RoHS Status
Contains lead / RoHS Compliant

Available stocks

Company
Part Number
Manufacturer
Quantity
Price
Part Number:
XRD8799AIQ
Manufacturer:
Exar Corporation
Quantity:
10 000
Part Number:
XRD8799AIQ-F
Manufacturer:
SEIKO
Quantity:
12 400
xr
xr
FEBRUARY 2001
FEATURES
• 10-Bit Resolution
• 8-Channel Mux
• Sampling Rate - < 1kHz - 2MHz
• Low Power CMOS - 35 mW (typ)
• Power Down; Lower Consumption - 0.8 mW (typ)
• Input Range between GND and V
• No S/H Required for Analog Signals less than
• No S/H Required for CCD Signals less than 2MHz
• Single Power Supply (4.5 to 5.5V)
• Latch-Up Free
• ESD Protection: 2000 Volts Minimum
GENERAL DESCRIPTION
The XRD8799 is a flexible, easy to use, precision 10-
bit analog-to-digital converter with 8-channel mux that
operates over a wide range of input and sampling
conditions. The XRD8799 can operate with pulsed
"on demand" conversion operation or continuous
"pipeline" operation for sampling rates up to 2MHz.
The elimination of the S/H requirements, very low
power, and small package size offer the designer a
low cost solution. No sample and hold is required for
CCD applications up to 2MHz, or multiplexed input
applications when the signal source bandwidth is lim-
ited to 100kHz. The input architecture of the
XRD8799 allows direct interface to any analog input
range between AGND and AV
5V, etc.). The user simply sets V
encompass the desired input range.
ORDERING INFORMATION
Exar
100kHz
Corporation 48720 Kato Road, Fremont CA, 94538
P
XRD8799AIQ
ART
N
UMBER
LOW POWER, 2 MSPS, 10-BIT, A/D CONVERTER WITH 8-CHANNEL MUX
DD
REF(+)
(0 to 1V, 1 to 4V, 0 to
DD
and V
REF(-)
to
P
ACKAGE
PQFP
(510) 668-7000
APPLICATIONS
• High Resolution Imaging - Scanners & Copiers
• Wireless Digital Communications
• Multiplexed Data Acquisition
BENEFITS
• Reduced Board Space (Small Package)
• Reduced External Parts, No Sample/Hold Needed
• Suitable for Battery & Power Critical Applications
• Designer can Adapt Input Range & Scaling
Scaled reference resistor taps @ 1/4 R, 1/2 R and 3/4
R allow for customizing the transfer curve as well as
providing a 1/2 span reference voltage. Digital out-
puts are CMOS and TTL compatible.
The XRD8799 uses a two-step flash technique. The
first segment converts the 5 MSBs and consists of
autobalanced comparators, latches, an encoder, and
buffer storage registers. The second segment con-
verts the remaining 5 LSBs.
When the power down input is "high", the data out-
puts DB9 to DB0 hold the current values and V
disconnected from V
during the power down mode is 0.1mW.
P/DSP Interface and Control Application
FAX (510) 668-7017
REF1(-)
O
PERATING
. The power consumption
XRD8799
-40
T
www.exar.com
°
EMPERATURE
C to +85
°
C
REV. 1.00
R
REF(-)
ANGE
is

Related parts for XRD8799AIQ

XRD8799AIQ Summary of contents

Page 1

... The user simply sets V REF(+) encompass the desired input range. ORDERING INFORMATION P N ART UMBER XRD8799AIQ Exar Corporation 48720 Kato Road, Fremont CA, 94538 APPLICATIONS • P/DSP Interface and Control Application • High Resolution Imaging - Scanners & Copiers • Wireless Digital Communications • ...

Page 2

XRD8799 LOW POWER, 2 MSPS, 10-BIT, A/D CONVERTER WITH 8-CHANNEL MUX REV. 1. IGURE IMPLIFIED LOCK IAGRAM AND Coarse Comparators REF(+) REF(-) Ladder PD V REF1(-) A S ...

Page 3

LOW POWER, 2 MSPS, 10-BIT, A/D CONVERTER WITH 8-CHANNEL MUX PIN DESCRIPTIONS AME ESCRIPTION 1 DB6 Data Output Bit 6 2 DB7 Data Output Bit 7 3 DGND Digital Ground 4 DGND Digital ...

Page 4

XRD8799 LOW POWER, 2 MSPS, 10-BIT, A/D CONVERTER WITH 8-CHANNEL MUX REV. 1.00 T ABLE CLR CLR, ...

Page 5

XRD8799 LOW POWER, 2 MSPS, 10-BIT, A/D CONVERTER WITH 8-CHANNEL MUX REV. 1.00 ELECTRICAL CHARACTERISTICS LECTRICAL HARACTERISTICS UNLESS OTHERWISE SPECIFIED ARAMETER YMBOL EATURES Resolution Sampling Rate ...

Page 6

LOW POWER, 2 MSPS, 10-BIT, A/D CONVERTER WITH 8-CHANNEL MUX LECTRICAL HARACTERISTICS UNLESS OTHERWISE SPECIFIED ARAMETER YMBOL Clock Timing Clock Period Rise & Fall ...

Page 7

XRD8799 LOW POWER, 2 MSPS, 10-BIT, A/D CONVERTER WITH 8-CHANNEL MUX REV. 1. LECTRICAL HARACTERISTICS UNLESS OTHERWISE SPECIFIED ARAMETER YMBOL Clock to WR Hold Time t CLKH2 1 Power ...

Page 8

LOW POWER, 2 MSPS, 10-BIT, A/D CONVERTER WITH 8-CHANNEL MUX A M BSOLUTE AXIMUM V (to GND REF(+) REF(-) All A INs All Inputs All Outputs Storage Temperature Lead Temperature (Soldering 10 ...

Page 9

XRD8799 LOW POWER, 2 MSPS, 10-BIT, A/D CONVERTER WITH 8-CHANNEL MUX REV. 1. XRD8799 T D IGURE IMING IAGRAM CLOCK Sample Auto Sample N-1 Balance N Analog Input V OH Data V OL THEORY ...

Page 10

LOW POWER, 2 MSPS, 10-BIT, A/D CONVERTER WITH 8-CHANNEL MUX F 5. XRD8799 C IGURE OMPARATORS External Settle by Clock Update Time Update References Clock Internal B AIN Sample Window Ladder Sample Sample Ladder Window ...

Page 11

XRD8799 LOW POWER, 2 MSPS, 10-BIT, A/D CONVERTER WITH 8-CHANNEL MUX REV. 1. DNL M O IGURE EASUREMENT N T ESTER DNL LSB Analog Input Output Codes (N) Code Width = (N+1) (N) LSB = ...

Page 12

LOW POWER, 2 MSPS, 10-BIT, A/D CONVERTER WITH 8-CHANNEL MUX F 10 IGURE ELATIONSHIP OF ATA TO CLOCK N N+1 DATA N a. Continuous sampling CLOCK N DATA b. Single sampling F 11 ...

Page 13

XRD8799 LOW POWER, 2 MSPS, 10-BIT, A/D CONVERTER WITH 8-CHANNEL MUX REV. 1.00 1 IGITAL NTERFACES The logic encodes the outputs of the comparators in binary code and latches the data in a D-type flip- flop ...

Page 14

LOW POWER, 2 MSPS, 10-BIT, A/D CONVERTER WITH 8-CHANNEL MUX 2.0 APPLICATION NOTES F 16 IGURE YPICAL IRCUIT ONNECTIONS Tantalum C2 = 0.1 F Chip Cap or low inductance ...

Page 15

XRD8799 LOW POWER, 2 MSPS, 10-BIT, A/D CONVERTER WITH 8-CHANNEL MUX REV. 1. IGURE XAMPLE OF A EFERENCE 0 18 IGURE NALOG NPUT + For R ...

Page 16

LOW POWER, 2 MSPS, 10-BIT, A/D CONVERTER WITH 8-CHANNEL MUX F 19. 10V A I IGURE NALOG NPUT For use Beckman Instruments #694-3-R10k resistor array or equivalent High R values ...

Page 17

XRD8799 LOW POWER, 2 MSPS, 10-BIT, A/D CONVERTER WITH 8-CHANNEL MUX REV. 1.00 F 21. DNL . S F IGURE VS AMPLING 2 1 4.6V REF(+) 1 REF(-) 0.5 0.0 -0.5 ...

Page 18

LOW POWER, 2 MSPS, 10-BIT, A/D CONVERTER WITH 8-CHANNEL MUX F 23 IGURE UPPLY URRENT VS 9 9.0 V REF(+) 8.5 V REF(-) 8.0 7.5 7.0 6.5 6.0 5.5 5.0 ...

Page 19

XRD8799 LOW POWER, 2 MSPS, 10-BIT, A/D CONVERTER WITH 8-CHANNEL MUX REV. 1.00 F 25. DNL . R V IGURE VS EFERENCE 1 0 2MHz s 0.6 0.4 0.2 0.0 -0.2 -0.4 -0.6 -0.8 ...

Page 20

LOW POWER, 2 MSPS, 10-BIT, A/D CONVERTER WITH 8-CHANNEL MUX F 27. DNL . T IGURE VS EMPERATURE 1 0 4.6V REF(+) 0 REF(-) F = 2MHz 0.4 S ...

Page 21

XRD8799 LOW POWER, 2 MSPS, 10-BIT, A/D CONVERTER WITH 8-CHANNEL MUX REV. 1.00 F 29. INL @ 2MSPS IGURE 4 (+) = 4.6V 3.0 REF REF(-) 2.0 1.0 0.0 -1.0 -2.0 -3.0 ...

Page 22

LOW POWER, 2 MSPS, 10-BIT, A/D CONVERTER WITH 8-CHANNEL MUX Seating Plane Note: The control dimension is the millimeter column SYMBOL LEAD PLASTIC QUAD FLAT ...

Page 23

... LOW POWER, 2 MSPS, 10-BIT, A/D CONVERTER WITH 8-CHANNEL MUX REV. 1.00 EXAR Corporation reserves the right to make changes to the products contained in this publication in order to improve design, performance or reliability. EXAR Corporation assumes no responsibility for the use of any cir- cuits described herein, conveys no license under any patent or other right, and makes no representation that the circuits are free of patent infringement. Charts and schedules contained here in are only for illustration pur- poses and may vary depending upon a user’ ...

Page 24

This datasheet has been download from: www.datasheetcatalog.com Datasheets for electronics components. ...

Related keywords