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ADS807 Datasheet(PDF) 1 Page - Texas Instruments

Part No. ADS807
Description  12-Bit, 53MHz Sampling ANALOG-TO-DIGITAL CONVERTER
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Maker  TI1 [Texas Instruments]
Homepage  http://www.ti.com
Logo TI1 - Texas Instruments

ADS807 Datasheet(HTML) 1 Page - Texas Instruments

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12-Bit, 53MHz Sampling
ANALOG-TO-DIGITAL CONVERTER
FEATURES
q SPURIOUS-FREE DYNAMIC RANGE:
82dB at 10MHz fIN
q HIGH SNR: 67.5dB (2Vp-p), 69dB (3Vp-p)
q LOW POWER: 335mW
q INTERNAL OR EXTERNAL REFERENCE
q LOW DNL: 0.5LSB
q FLEXIBLE INPUT RANGE: 2Vp-p to 3Vp-p
q SSOP-28 PACKAGE
DESCRIPTION
The ADS807 is a high-speed, high dynamic range,
12-bit pipelined Analog-to-Digital (A/D) 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
converter circuitry minimizes even-order harmonics and gives
excellent common-mode noise immunity. 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 circuitry. The inter-
nal reference can be disabled allowing low drive, internal
references to be used for improved tracking in multichannel
systems.
The ADS807 provides an over-range 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 techniques to
provide excellent differential linearity for demanding imaging
applications.
APPLICATIONS
q COMMUNICATIONS IF PROCESSING
q COMMUNICATIONS BASESTATIONS
q TEST EQUIPMENT
q MEDICAL IMAGING
q VIDEO DIGITIZING
q CCD DIGITIZING
ADS8
07E
Pipelined
A/D
Converter
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.)
ADS807
SBAS072A – JANUARY 1999 – REVISED JULY 2002
www.ti.com
PRODUCTION DATA information is current as of publication date.
Products conform to specifications per the terms of Texas Instruments
standard warranty. Production processing does not necessarily include
testing of all parameters.
Copyright © 1999, Texas Instruments Incorporated
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of
Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.


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