ADS5102

ADS5103

SLAS351B – OCTOBER 2001 – REVISED DECEMBER 2001

1.8-V ANALOG SUPPLY, 10-BIT, 65/40 MSPS

ANALOG-TO-DIGITAL CONVERTERS WITH INTERNAL REFERENCE

1

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FEATURES

Logic

20 MHz (ADS5102)

APPLICATIONS

DESCRIPTION

The ADS5102/3 are low-power CMOS, 10-bit, analog-

to-digital converters (ADC) that operate from a single

1.8-V supply. The internal reference can be bypassed

to use an external reference to suit the dc accuracy and

temperature drift requirements of the application. A

10-bit parallel output data bus is provided with 3-state

outputs. For power sensitive systems, a standby mode

is provided which reduces power consumption to

336

µW. Also, if using external voltage reference, then

the internal VREF circuit can be powered down. The

analog input is differential, which provides excellent

common-mode noise rejection as well as superior

performance from the ADS5102/3.

FUNCTIONAL BLOCK DIAGRAM

Timing Circuitry

CM

AGND

BG

PDREF

REFT

REFB CML

DRGND

DGND

CLK

AIN+

AIN–

NC

RBIAS

NC

AVDD

STBY

DRVDD

DVDD

D[0–9]

OE

Sample

and Hold

10 Bit

ADC

3-State

Output

Buffers

Internal

Reference

Circuit

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

 2001, 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.