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SPT7883

Part Number	SPT7883
Manufacturer	Fairchild Semiconductor
Description	70 MSPS A/D CONVERTER
Published	Nov 30, 2013
Detailed Description	SPT7883 10-BIT, 70 MSPS A/D CONVERTER PRELIMINARY INFORMATION FEATURES • 2.5 V power supply • SNR: 60 dB @ƒIN = 10 MHz, ...
Datasheet	SPT7883 PDF File

Overview

SPT7883 10-BIT, 70 MSPS A/D CONVERTER PRELIMINARY INFORMATION FEATURES • 2.
5 V power supply • SNR: 60 dB @ƒIN = 10 MHz, ƒS = 70 MHz; 58 dB @ƒIN = 30 MHz • Low power dissipation: 145 mW @2.
5 V; Sleep mode: 2.
6 mW • Sample rate: 10–115 MSPS • Frequency-dependent biasing • Internal sample-and-hold • Differential input • Low input capacitance • 9.
67 ENOBs @ ƒIN = 10 MHz, ƒS = 70 MHz • SFDR: 73 dB • IP core available NOVEMBER 21, 2001 APPLICATIONS • • • • • • • Imaging Computer scanners Communications Set top boxes Video products Battery-operated equipment Portable test equipment GENERAL DESCRIPTION The SPT7883 is a compact, high-speed, low-power 10-bit monolithic analog-to-digital converter, implemented in a 0.
25 µm CMOS process.
It has 10-bit resolution with 9.
67 effective bits and spurious-free dynamic range (SFDR) of 73 dB for video frequency signals.
The converter includes a high bandwidth sample-and-hold.
The full-scale range can be set between ±0.
5 V and ±1.
5 V.
It operates from a single 2.
5 V supply.
Its low distortion and high dynamic range provide the performance needed for demanding imaging, video, and communications applications.
The bias current level for the ADC is automatically adjusted based on the clock input frequency.
Hence, the power dissipation of the device is continuously optimized for the operating frequency.
The SPT7883 has a pipelined architecture, resulting in low input capacitance.
Digital error correction of the 9 most significant bits ensures good linearity for input frequencies approaching Nyquist.
The SPT7883 is available in a 28-lead SSOP package over the industrial temperature range (–40 to +85 °C).
BLOCK DIAGRAM EXTREF BIAS0 BIAS1 Correction Logic REFP INP ADC INN REFN CM CLK Digital Outputs Clock Circuit OE Free Datasheet http://www.
datasheet4u.
com/ ABSOLUTE MAXIMUM RATINGS (Beyond which damage may occur) 25 °C Supply Voltages VDD –0.
3 V to +3 V OVDD .
.
...

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