THS1041

SLAS289C − OCTOBER 2001 − REVISED OCTOBER 2004

10Bit, 40MSPS ANALOGTODIGITAL CONVERTER

WITH PGA AND CLAMP

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FEATURES

− Single-Ended

− Single-Ended With Analog Clamp

− Single-Ended With Programmable Digital

Clamp

− Differential

APPLICATIONS

DESCRIPTION

The THS1041 is a CMOS, low power, 10-bit, 40 MSPS

analog-to-digital converter (ADC) that operates from a

single 3-V supply. The THS1041 has been designed to

give circuit developers flexibility. The analog input to the

THS1041 can be either single-ended or differential.

This device has a built-in clamp amplifier whose clamp

input level can be driven from an external dc source or

from an internal high-precision 10-bit digital clamp level

programmable via an internal CLAMP register. A 3-bit

PGA is included to maintain SNR for small signals. The

THS1041 provides a wide selection of voltage

references to match the user’s design requirements.

For more design flexibility, the internal reference can be

bypassed to use an external reference to suit the dc

accuracy and temperature drift requirements of the

application. The out-of-range output indicates any

out-of-range condition in THS1041’s input signal. The

format of the digital output can be coded in either

unsigned binary or 2s complement.

The speed, resolution, and single-supply operation of

the THS1041 are suited to applications in set-top-box

(STB),

video,

multimedia,

imaging,

high-speed

acquisition, and communications. The built-in clamp

function allows dc restoration of a video signal and is

suitable for video applications. The speed and

resolution ideally suit charge-couple device (CCD) input

systems such as color scanners, digital copiers, digital

cameras, and camcorders. A wide input voltage range

allows the THS1041 to be applied in both imaging and

communications systems.

The THS1041C is characterized for operation from 0

°C

to 70

°C, while the THS1041I is characterized for

operation from −40

°C to 85°C.

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

 2002 − 2004, 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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AGND

I/O0

I/O1

I/O2

I/O3

I/O4

I/O5

I/O6

I/O7

I/O8

I/O9

OVR

DGND

AIN+

VREF

AIN−

REFB

MODE

REFT

CLAMPOUT

CLAMPIN

CLAMP

REFSENSE

WR

OE

CLK

28-PIN TSSOP/SOIC PACKAGE

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