ANALOG-TO-DIGITAL CONVERTER. ADS900 Datasheet

ADS900 CONVERTER. Datasheet pdf. Equivalent

ADS900 Datasheet
Recommendation ADS900 Datasheet
Part ADS900
Description 10-Bit/ 20MHz/ #V Supply ANALOG-TO-DIGITAL CONVERTER
Feature ADS900; ® ADS 900 E ADS900 10-Bit, 20MHz, +3V Supply ANALOG-TO-DIGITAL CONVERTER TM FEATURES q +2.7V TO +.
Manufacture Burr-Brown Corporation
Datasheet
Download ADS900 Datasheet




Burr-Brown Corporation ADS900
®
ADS900E
ADS900
10-Bit, 20MHz, +3V Supply
TM
ANALOG-TO-DIGITAL CONVERTER
FEATURES
q +2.7V TO +3.7V SUPPLY OPERATION
q INTERNAL REFERENCE
q LOW POWER: 52mW at +3V
q SINGLE-ENDED INPUT RANGE: 1V to 2V
q WIDEBAND TRACK/HOLD: 350MHz
q 28-LEAD SSOP PACKAGE
APPLICATIONS
q PORTABLE INSTRUMENTATION
q IF AND BASEBAND COMMUNICATIONS
q CABLE MODEMS
q SET-TOP BOXES
q PORTABLE TEST EQUIPMENT
q COMPUTER SCANNERS
ADS900
DESCRIPTION
The ADS900 is a high speed pipelined analog-to-
digital converter. This complete converter includes a
high bandwidth track/hold, a 10-bit quantizer and an
internal reference.
The ADS900 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 20MHz sampling rate. The ADS900
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
10-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-1347B
Printed in U.S.A. January, 1997



Burr-Brown Corporation ADS900
SPECIFICATIONS
At TA = +25°C, VS = LVDD = +3V, Single-Ended Input, Sampling Rate = 20MHz, unless otherwise specified.
ADS900E
PARAMETER
CONDITIONS
TEMP
MIN
TYP
MAX
Resolution
Specified Temperature Range
ANALOG INPUT
Single-Ended Full Scale Input Range
Differential Full Scale Input Range
Common-Mode Voltage
Analog Input Bias Current
Input Impedance
Analog Input Bandwidth
Small Signal
Full Power
DIGITAL INPUTS
Logic Family
High Input Voltage, VIH
Low Input Voltage, VIL
High Input Current, IIH
Low Input Current, IIL
Input Capacitance
CONVERSION CHARACTERISTICS
Start Conversion
Sample Rate
Data Latency
DYNAMIC CHARACTERISTICS
Differential Linearity Error
f = 500kHz (Largest Code Error)
f = 10MHz (Largest Code Error)
No Missing Codes
Integral Nonlinearity Error, f = 500kHz
Spurious Free Dynamic Range(1)
f = 500kHz (–1dBFS(2) input)
f = 10MHz (–1dBFS(2) input)
Two-Tone Intermodulation Distortion(3)
f = 4.5MHz and 5.0MHz (–7dBFS each tone)
Signal-to-Noise Ratio (SNR)
f = 500kHz (–1dBFS input)
f = 10MHz (–1dBFS input)
Signal-to-(Noise + Distortion) (SINAD)
f = 500kHz (–1dBFS input)
f = 3.58MHz (–1dBFS input)
f = 10MHz (–1dBFS input)
Differential Gain Error
Differential Phase Error
Output Noise
Aperture Delay Time
Aperture Jitter
Overvoltage Recovery Time(4)
DIGITAL OUTPUTS
Logic Family
Logic Coding
High Output Voltage, VOH
Low Output Voltage, VOL
3-State Enable Time
3-State Disable Time
Internal Pull-Down
Power-Down Enable Time
Power-Down Disable Time
Internal Pull-Down
Ambient Air
(1Vp-p)
(0.5Vp-pX 2)
–20dBFS Input
0dBFS Input
NTSC, PAL
NTSC, PAL
Input Grounded
1.5X FS Input
CL = 15pF
OE = L
OE = H
PwrDn = L
PwrDn = H
+25°C
+25°C
Full
Full
Full
Full
Full
Full
Full
Full
+25°C
Full
Full
Full
Full
Full
+25°C
10
–40 +85
1.0 to 2.0
1.25 to 1.75
1.5
1
1.25 || 5
350
100
TTL/HCT COMPATIBLE CMOS
2.0 VDD
0.8
±10
±10
5
RISING EDGE OF CONVERT CLOCK
10k 20M
5
±0.7
±0.7
Guaranteed
±3.5
±1.0
±1.0
47 53
47 53
50
45 49
45 49
44 48
44 48
44 48
2.3
1
0.2
2
7
2
TTL/HCT COMPATIBLE CMOS
Straight Offset Binary
+2.4
LVDD
+0.4
20 40
2 10
50
133
18
50
UNITS
Bits
°C
V
V
V
µA
M|| pF
MHz
MHz
V
V
µA
µA
pF
Samples/s
Clk Cyc
LSBs
LSBs
LSBs
dBFS(2)
dBFS
dBc
dB
dB
dB
dB
dB
%
degrees
LSBs rms
ns
ps rms
ns
V
V
ns
ns
k
ns
ns
k
The information provided herein is believed to be reliable; however, BURR-BROWN assumes no responsibility for inaccuracies or omissions. BURR-BROWN
assumes no responsibility for the use of this information, and all use of such information shall be entirely at the user’s own risk. Prices and specifications are subject
to change without notice. No patent rights or licenses to any of the circuits described herein are implied or granted to any third party. BURR-BROWN does not
authorize or warrant any BURR-BROWN product for use in life support devices and/or systems.
®
ADS900
2



Burr-Brown Corporation ADS900
SPECIFICATIONS (CONT)
At TA = +25°C, VS = +3V, Single-Ended Input, Sampling Rate = 20MHz, unless otherwise specified.
ADS900E
PARAMETER
CONDITIONS
TEMP
MIN
TYP
MAX
UNITS
ACCURACY
Gain Error
Input Offset
Power Supply Rejection (Gain)
Power Supply Rejection (Offset)
Internal Positive Reference Voltage
Internal Negative Reference Voltage
POWER SUPPLY REQUIREMENTS
Supply Voltage: +VS
Supply Current: +IS
Power Dissipation
Power Dissipation (Power Down)
Thermal Resistance, θJA
28-Lead SSOP
Referred to Ideal Midscale
VS = +10%
Operating
Operating
Operating, +3V
+3V
+25°C
Full
Full
Full
Full
Full
Full
Full
Full
25°C
Full
42
42
+2.7
8
15
55
62
+1.75
+1.25
+3
18
54
52
10
50
±10 %FS
±60 mV
dB
dB
V
V
+3.7 V
22 mA
66 mW
mW
mW
°C/W
NOTES: (1) Spurious Free Dynamic Range refers to the magnitude of the largest harmonic. (2) dBFS means dB relative to full scale. (3) Two-tone intermodulation
distortion is referred to the largest fundamental tone. This number will be 6dB higher if it is referred to the magnitude of the two-tone fundamental envelope. (4) No
rollover of bits.
ABSOLUTE MAXIMUM RATINGS
+VS ....................................................................................................... +6V
Analog Input ............................................................................... +VS +0.3V
Logic Input ................................................................................. +VS +0.3V
Case Temperature ......................................................................... +100°C
Junction Temperature .................................................................... +150°C
Storage Temperature ..................................................................... +150°C
PACKAGE/ORDERING INFORMATION
PRODUCT
ADS900E
PACKAGE
28-Lead SSOP
PACKAGE
DRAWING
NUMBER(1)
324
TEMPERATURE
RANGE
–40°C to +85°C
NOTE: (1) For detailed drawing and dimension table, please see end of data
sheet, or Appendix C of Burr-Brown IC Data Book.
ELECTROSTATIC
DISCHARGE SENSITIVITY
This integrated circuit can be damaged by ESD. Burr-Brown
recommends that all integrated circuits be handled with
appropriate precautions. Failure to observe proper handling
and installation procedures can cause damage.
ESD damage can range from subtle performance degradation
to complete device failure. Precision integrated circuits may
be more susceptible to damage because very small parametric
changes could cause the device not to meet its published
specifications.
®
3 ADS900







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