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Burr-Brown Corporation

ADS802 Datasheet Preview

ADS802 Datasheet

12-Bit/ 10MHz Sampling ANALOG-TO-DIGITAL CONVERTER

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® ADS802U
ADS802E
ADS802
TM 12-Bit, 10MHz Sampling
ANALOG-TO-DIGITAL CONVERTER
FEATURES
q NO MISSING CODES
q LOW POWER: 250mW
q INTERNAL REFERENCE
q WIDEBAND TRACK/HOLD: 65MHz
q SINGLE +5V SUPPLY
APPLICATIONS
q IF AND BASEBAND DIGITIZATION
q DATA ACQUISITION CARDS
q TEST INSTRUMENTATION
q CCD IMAGING
Copiers
Scanners
Cameras
q VIDEO DIGITIZING
q GAMMA CAMERAS
DESCRIPTION
The ADS802 is a low power, monolithic 12-bit, 10MHz
analog-to-digital converter utilizing a small geometry
CMOS process. This COMPLETE converter includes
a 12-bit quantizer, wideband track/hold, reference and
three-state outputs. It operates from a single +5V
power supply and can be configured to accept either
differential or single-ended input signals.
The ADS802 employs digital error correction in order
to provide excellent Nyquist differential linearity per-
formance for demanding imaging applications. Its low
distortion, high SNR, and high oversampling capability
give it the extra margin needed for telecommunications,
test instrumentation and video applications.
This high performance A/D converter is specified for
AC and DC performance at a 10MHz sampling rate.
The ADS802 is available in 28-lead SOIC and SSOP
packages.
CLK
MSBI
OE
IN
IN
REFT
CM
REFB
Timing
Circuitry
T/H
+3.25V
Pipeline
A/D
Error
Correction
Logic
3-State
Outputs
12-Bit
Digital
Data
+1.25V
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
©1995 Burr-Brown Corporation
PDS-1290E
Printed in U.S.A. October, 1996




Burr-Brown Corporation

ADS802 Datasheet Preview

ADS802 Datasheet

12-Bit/ 10MHz Sampling ANALOG-TO-DIGITAL CONVERTER

No Preview Available !

SPECIFICATIONS
At TA = +25°C, VS = +5V, and Sampling Rate = 10MHz, with a 50% duty cycle clock having 2ns rise/fall time, unless otherwise noted.
ADS802U, E
PARAMETER
CONDITIONS
TEMP
MIN
TYP
MAX
UNITS
Resolution
Specified Temperature Range
ANALOG INPUT
Differential Full Scale Input Range
Common-Mode Voltage
Analog Input Bandwidth (–3dB)
Small Signal
Full Power
Input Impedance
DIGITAL INPUT
Logic Family
Convert Command
ACCURACY(2)
Gain Error
Gain Tempco
Power Supply Rejection of Gain
Input Offset Error
Power Supply Rejection of Offset
CONVERSION CHARACTERISTICS
Sample Rate
Data Latency
DYNAMIC CHARACTERISTICS
Differential Linearity Error
f = 500kHz
f = 5MHz
No Missing Codes
Integral Linearity Error at f = 500kHz
Spurious-Free Dynamic Range (SFDR)
f = 500kHz (–1dBFS input)
f = 5MHz (–1dBFS input)
Two-Tone Intermodulation Distortion (IMD)(3)
f = 4.4MHz and 4.5MHz (–7dBFS each tone)
Signal-to-Noise Ratio (SNR)
f = 500kHz (–1dBFS input)
f = 5MHz (–1dBFS input)
Signal-to-(Noise + Distortion) (SINAD)
f = 500kHz (–1dBFS input)
f = 5MHz (–1dBFS input)
Differential Gain Error
Differential Phase Error
Aperture Delay Time
Aperture Jitter
Overvoltage Recovery Time(4)
TAMBIENT
Both Inputs
–20dBFS(1) Input
0dBFS Input
+25°C
+25°C
Start Conversion
Delta +VS = ±5%
Delta +VS = ±5%
+25°C
Full
+25°C
Full
+25°C
Best Fit
NTSC or PAL
NTSC or PAL
1.5x Full Scale Input
+25°C
0°C to +85°C
+25°C
0°C to +85°C
0°C to +85°C
0°C to +85°C
+25°C
Full
+25°C
Full
+25°C
Full
+25°C
Full
+25°C
Full
+25°C
Full
+25°C
Full
+25°C
+25°C
+25°C
+25°C
+25°C
12
–40 +85
+1.25
+2.25
400
65
1.25 || 4
+3.25
TTL/HCT Compatible CMOS
Falling Edge
±0.6
±1.0
±85
0.03
±2.1
0.05
±1.5
±2.5
0.1
±3.0
0.1
10k 10M
6.5
±0.3
±0.4
±0.4
±0.4
Guaranteed
±1.7
±1.0
±1.0
±1.0
±1.0
±2.75
67 77
66 75
63 67
62 66
–65
–64
65 67
64 67
64 66
62 66
63 66
61 65
61 63
60 62
0.5
0.1
2
7
2
Bits
°C
V
V
MHz
MHz
MΩ || pF
%
%
ppm/°C
%FSR/%
%
%FSR/%
Sample/s
Convert Cycle
LSB
LSB
LSB
LSB
LSB
LSB
dBFS
dBFS
dBFS
dBFS
dBc
dBc
dB
dB
dB
dB
dB
dB
dB
dB
%
degrees
ns
ps rms
ns
NOTE: (1) dBFS refers to dB below Full Scale. (2). Percentage accuracies are referred to the internal A/D Full Scale Range of 4Vp-p. (3) IMD is referred to the
larger of the two input signals. If referred to the peak envelope signal (≈0dB), the intermodulation products will be 7dB lower. (4) No "rollover" of bits.
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.
®
ADS802
2


Part Number ADS802
Description 12-Bit/ 10MHz Sampling ANALOG-TO-DIGITAL CONVERTER
Maker Burr-Brown Corporation
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ADS802 Datasheet PDF






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