BurrBrown Products

from Texas Instruments

FEATURES

DESCRIPTION

APPLICATIONS

12-Bit

Pipelined

ADC

Error

Correction

Logic

Timing/DutyCycle

Adjust(PLL)

Internal

Reference

3-State

Output

S/H

D11A

·

·

·

D0A

12-Bit

Pipelined

ADC

Error

Correction

Logic

3-State

Output

S/H

D11B

·

·

·

D0B

AVDD

OE

A

VDRV

SDATA SEN SCLK SEL

OVR

A

OVR

B

IN

A

CM

IN

A

INT/EXT

CLK

DV

A

DV

B

REF

T

REF

B

IN

B

V

IN

OE

B

STPD

IN

B

ADS5231

V

IN

Serial

Interface

DISABLE_PLL

ADS5231

SBAS295A – JULY 2004 – REVISED JANUARY 2007

Dual, 12-Bit, 40MSPS, +3.3V

Analog-to-Digital Converter

• Single +3.3V Supply

The ADS5231 is a dual, high-speed, high dynamic

range, 12-bit pipelined analog-to-digital converter

• High SNR: 70.7dBFS at f

(ADC). This converter includes a high-bandwidth

• Total Power Dissipation:

sample-and-hold

amplifier

that

gives

excellent

Internal Reference: 321mW

spurious performance up to and beyond the Nyquist

External Reference: 285mW

rate. The differential nature of the sample-and-hold

• Internal or External Reference

amplifier and ADC circuitry minimizes even-order

harmonics and gives excellent common-mode noise

• Low DNL: ±0.3LSB

immunity.

• Flexible Input Range: 1.5V

The ADS5231 provides for setting the full-scale

• TQFP-64 Package

range of the converter without any external reference

circuitry. The internal reference can be disabled,

allowing low-drive, external references to be used for

• Communications IF Processing

improved tracking in multichannel systems.

• Communications Base Stations

The ADS5231 provides an over-range indicator flag

• Test Equipment

to indicate an input signal that exceeds the full-scale

• Medical Imaging

input range of the converter. This flag can be used to

• Video Digitizing

reduce the gain of front-end gain control circuitry.

There is also an output enable pin to allow for

• CCD Digitizing

multiplexing and testing on a printed circuit board

(PCB).

The

ADS5231

employs

digital

error

correction

techniques to provide excellent differential linearity

for demanding imaging applications. The ADS5231 is

available in a TQFP-64 package.

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.

All trademarks are the property of their respective owners.

PRODUCTION DATA information is current as of publication date.

Copyright © 2004–2007, Texas Instruments Incorporated

Products conform to specifications per the terms of the Texas

Instruments standard warranty. Production processing does not

necessarily include testing of all parameters.