ADS807
器件描述：12-Bit, 53MHz Sampling ANALOG-TO-DIGITAL CONVERTER
器件厂商：BURR-BROWN [Burr-Brown Corporation]
文件大小：225.82KB，共15页
Sponsor by e络盟器件资料摘要：
ADS807
®
12-Bit, 53MHz Sampling
ANALOG-TO-DIGITAL CONVERTER
FEATURES
l SPURIOUS FREE DYNAMIC RANGE:
82dB at 10MHz f
IN
l HIGH SNR: 67.5dB (2Vp-p), 69dB (3Vp-p)
l LOW POWER: 335mW
l INTERNAL OR EXTERNAL REFERENCE
l LOW DNL: 0.5LSB
l FLEXIBLE INPUT RANGE: 2Vp-p to 3Vp-p
l 28-LEAD SSOP PACKAGE
TM
DESCRIPTION
The ADS807 is a high-speed, high dynamic range,
12-bit pipelined analog-to-digital converter. This con-
verter includes a high-bandwidth track-and-hold that
gives excellent spurious performance up to and beyond
the Nyquist rate. The differential nature of this track-
and-hold and A/D circuitry minimizes even-order har-
monics and gives excellent common-mode noise immu-
nity. The track-and-hold can also be operated single-
ended.
The ADS807 provides for setting the full-scale range
of the converter without any external reference cir-
cuitry. The internal reference can be disabled allowing
low drive, internal references to be used for improved
tracking in multichannel systems.
The ADS807 provides an overrange indicator flag to
indicate an input signal that exceeds the full-scale input
range of the converter. This flag can be used to reduce
the gain of front end gain control circuitry. There is
also an output enable pin to allow for multiplexing and
testability on a PC board.
The ADS807 employs digital error correction tech-
niques to provide excellent differential linearity for
demanding imaging applications.
APPLICATIONS
l COMMUNICATIONS IF PROCESSING
l COMMUNICATIONS BASESTATIONS
l TEST EQUIPMENT
l MEDICAL IMAGING
l VIDEO DIGITIZING
l CCD DIGITIZING
©
1998 Burr-Brown Corporation PDS-1396C Printed in U.S.A. January, 1999
ADS807E
Pipelined
A/D
Internal
Reference
Optional External
Reference
Timing
Circuitry
Error
Correction
Logic
3-State
Outputs
T/H
D0
•
•
•
D11
CLK
ADS807
OE
IN
INT/EXT
IN
CM
+2.5V
+2.5V
+3V
+2V
+2V
+3V
FS
SEL
(Opt.)
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/ • Cable: BBRCORP • Telex: 066-6491 • FAX: (520) 889-1510 • Immediate Product Info: (800) 548-6132
®
12-Bit, 53MHz Sampling
ANALOG-TO-DIGITAL CONVERTER
FEATURES
l SPURIOUS FREE DYNAMIC RANGE:
82dB at 10MHz f
IN
l HIGH SNR: 67.5dB (2Vp-p), 69dB (3Vp-p)
l LOW POWER: 335mW
l INTERNAL OR EXTERNAL REFERENCE
l LOW DNL: 0.5LSB
l FLEXIBLE INPUT RANGE: 2Vp-p to 3Vp-p
l 28-LEAD SSOP PACKAGE
TM
DESCRIPTION
The ADS807 is a high-speed, high dynamic range,
12-bit pipelined analog-to-digital converter. This con-
verter includes a high-bandwidth track-and-hold that
gives excellent spurious performance up to and beyond
the Nyquist rate. The differential nature of this track-
and-hold and A/D circuitry minimizes even-order har-
monics and gives excellent common-mode noise immu-
nity. The track-and-hold can also be operated single-
ended.
The ADS807 provides for setting the full-scale range
of the converter without any external reference cir-
cuitry. The internal reference can be disabled allowing
low drive, internal references to be used for improved
tracking in multichannel systems.
The ADS807 provides an overrange indicator flag to
indicate an input signal that exceeds the full-scale input
range of the converter. This flag can be used to reduce
the gain of front end gain control circuitry. There is
also an output enable pin to allow for multiplexing and
testability on a PC board.
The ADS807 employs digital error correction tech-
niques to provide excellent differential linearity for
demanding imaging applications.
APPLICATIONS
l COMMUNICATIONS IF PROCESSING
l COMMUNICATIONS BASESTATIONS
l TEST EQUIPMENT
l MEDICAL IMAGING
l VIDEO DIGITIZING
l CCD DIGITIZING
©
1998 Burr-Brown Corporation PDS-1396C Printed in U.S.A. January, 1999
ADS807E
Pipelined
A/D
Internal
Reference
Optional External
Reference
Timing
Circuitry
Error
Correction
Logic
3-State
Outputs
T/H
D0
•
•
•
D11
CLK
ADS807
OE
IN
INT/EXT
IN
CM
+2.5V
+2.5V
+3V
+2V
+2V
+3V
FS
SEL
(Opt.)
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/ • Cable: BBRCORP • Telex: 066-6491 • FAX: (520) 889-1510 • Immediate Product Info: (800) 548-6132