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ADS930E Schematic ( PDF Datasheet ) - Burr-Brown Corporation

Teilenummer ADS930E
Beschreibung 8-Bit/ 30MHz Sampling ANALOG-TO-DIGITAL CONVERTER
Hersteller Burr-Brown Corporation
Logo Burr-Brown Corporation Logo 




Gesamt 11 Seiten
ADS930E Datasheet, Funktion
®
ADS930E
ADS930
8-Bit, 30MHz Sampling
TM
ANALOG-TO-DIGITAL CONVERTER
FEATURES
q +3V TO +5V SUPPLY OPERATION
q INTERNAL REFERENCE
q SINGLE-ENDED INPUT RANGE: 1V to 2V
q LOW POWER: 66mW at +3V
q HIGH SNR: 46dB
q LOW DNL: 0.4LSB
q 28-LEAD SSOP PACKAGE
APPLICATIONS
q BATTERY POWERED EQUIPMENT
q CAMCORDERS
q PORTABLE TEST EQUIPMENT
q COMPUTER SCANNERS
q COMMUNICATIONS
ADS930
DESCRIPTION
The ADS930 is a high speed pipelined analog-to-
digital converter specified to operate from nominal
+3V or +5V power supplies with tolerances of up to
10%. This complete converter includes a high band-
width track/hold, a 8-bit quantizer and an internal
reference.
The ADS930 employs digital error correction tech-
niques to provide excellent differential linearity for
demanding imaging applications. Its low distortion
and high SNR give the extra margin needed for
telecommunications, video and test instrumentation
applications.
This high performance A/D converter is specified for
performance at a 30MHz sampling rate. The ADS930
is available in a 28-lead SSOP package.
CLK
Timing
Circuitry
LVDD
2V
IN
1V
IN
(Opt.)
T/H
Pipeline
A/D
Error
Correction
3-State
Outputs
8-Bit
Digital
Data
Internal
Reference
LpBy CM LnBy
1VREF Pwrdn OE
International Airport Industrial Park • Mailing Address: PO Box 11400, Tucson, AZ 85734 • Street Address: 6730 S. Tucson Blvd., Tucson, AZ 85706 • Tel: (520) 746-1111 • Twx: 910-952-1111
Internet: http://www.burr-brown.com/ • FAXLine: (800) 548-6133 (US/Canada Only) • Cable: BBRCORP • Telex: 066-6491 • FAX: (520) 889-1510 • Immediate Product Info: (800) 548-6132
©1997 Burr-Brown Corporation
PDS-1348B
Printed in U.S.A. March, 1997






ADS930E Datasheet, Funktion
TYPICAL PERFORMANCE CURVES (CONT)
At TA = +25°C, VS = +3V, Single-ended Input and Sampling Rate = 30MHz, unless otherwise specified.
4.0
2.0
0
–2.0
–4.0
0
INTEGRAL LINEARITY ERROR
fIN = 500kHz
64 128 192
Output Code
256
100
80
60
40
20
0
–50
SWEPT POWER SFDR
dBFS
dBc
–40 –30 –20 –10
Input Amplitude (dBFS)
0
DYNAMIC PERFORMANCE vs INPUT FREQUENCY
52
SFDR
50
48
46
0.1
SNR
1 10
Frequency (MHz)
100
DIFFERENTIAL LINEARITY ERROR
vs TEMPERATURE
0.7
0.6
0.5
0.4
0.3
0.2
–50
fIN = 500kHz
fIN = 10MHz
–25 0 25 50
Temperature (°C)
75
100
0
–20
–40
–60
–80
–100
–120
0
UNDERSAMPLING (With Differential Input)
fIN = 20MHz
fS = 16MHz
1.6 3.2 4.8 6.4
Frequency (MHz)
8.0
SPURIOUS FREE DYNAMIC RANGE
vs TEMPERATURE
54
fIN = 500kHz
52
50
fIN = 12MHz
48
46
–50
–25
0 25 50
Temperature (°C)
75 100
®
ADS930
6

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