Texas Instruments ADS5413 Handleiding

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ADS5413

SLWS153 − DECEMBER 2003

SINGLE 12-BIT, 65-MSPS IF SAMPLING

ANALOG-TO-DIGITAL CONVERTER

FEATURES

D12-Bit Resolution

D65-MSPS Maximum Sample Rate

D2-Vpp Differential Input Range

D3.3-V Single Supply Operation

D1.8-V to 3.3-V Output Supply

D400-mW Total Power Dissipation

DTwo’s Complement Output Format

DOn-Chip S/H and Duty Cycle Adjust Circuit

DInternal or External Reference

D48-Pin TQFP Package With PowerPad

(7 mm x 7 mm body size)

D64.5-dBFS SNR and 72-dBc SFDR at 65 MSPS

and 190-MHz Input

DPower-Down Mode

DSingle-Ended or Differential Clock

D1-GHz −3-dB Input Bandwidth

APPLICATIONS

DHigh IF Sampling Receivers

DMedical Imaging

DPortable Instrumentation

DESCRIPTION

The ADS5413 is a low power, 12-bit, 65-MSPS, CMOS pipeline analog-to-digital converter (ADC) that operates from a

single 3.3-V supply, while offering the choice of digital output levels from 1.8 V to 3.3 V. The low noise, high linearity, and

low clock jitter makes the ADC well suited for high-input frequency sampling applications. On-chip duty cycle adjust circuit

allows the use of a non-50% duty cycle. This can be bypassed for applications requiring low jitter or asynchronous

sampling. The device can also be clocked with single ended or differential clock, without change in performance. The

internal reference can be bypassed to use an external reference to suit the accuracy and low drift requirements of the

application.

The device is specified over full temperature range (−40°C to +85°C).

FUNCTIONAL BLOCK DIAGRAM

Digital Error Correction

7 Stages

Internal

Reference

Generator

1.8 V

1.25 V

DCA

CML

VBG

CLK

AGNDD[0:11]

AVDD

A/DΣ

D/AA/D

VREFB

CLKC

22

OVDD

OGND

S/H

VREFT

2.25 V

Σ

D/AA/D

2

VINP

VINN

Gain

Stage

Gain

Stage

Σ

D/AA/D

2

Gain

Stage

Flash

PWD

REF SEL

DCA

CommsADC is a trademark of Texas Instruments.

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.

Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of TexasInstruments

semiconductor products and disclaimers thereto appears at the end of this data sheet.

www.ti.com

Copyright  2003, Texas Instruments Incorporated

Product specificaties