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TSA1005-40

DUAL-CHANNEL, 10-BIT, 40MSPS, 150mW A/D CONVERTER

Preliminary Data

s

10-bit, dual-channel A/D converter in deep

s

s

s

s

s

s

s

submicron CMOS technology

Single supply voltage: 2.5V

Independent supply for CMOS output stage

with 2.5V/3.3V capability

ENOB=9.4 @ 40Msps, Fin=10MHz

SFDR typically up to 73dB @ 40Msps,

Fin=10MHz.

40Msps sampling frequency

1GHz analog bandwidth Track-and-Hold

Common clocking between channels

Multiplexed outputs

PIN CONNECTIONS

(top view)

GNDBE

VCCBE

REFPI

VCCBI

REFMI

VCCBI

INCMI

AVCC

AVCC

OEB

NC

NC

index

corner

48 47 46 45

AGND 1

INI

2

44 43 42

41 40 39 38 37

36 D0(LSB)

35 D1

34 D2

33 D3

32 D4

31 D5

AGND 3

INIB 4

AGND 5

IPOL 6

AVCCB 7

AGND 8

INQ 9

AGND 10

INBQ 11

AGND 12

13

REFPQ

14 15 16

REFMQ

INCMQ

AGND

17 18 19 20 21 22

AVCC

DVCC

DGND

CLK

SELECT

DGND

23 24

DVCC

GNDBI

TSA1005-40

30 D6

29 D7

28 D8

27 D9(MSB)

26 VCCBE

25 GNDBE

DESCRIPTION

The TSA1005-40 is a new generation of high

speed, dual-channel Analog to Digital converter

processed in a mainstream 0.25碌m CMOS tech-

nology yielding high performances.

The TSA1005-40 is specifically designed for appli-

cations requiring very low noise floor, high SFDR

and good isolation between channels. It is based

on a pipeline structure and digital error correction

to provide high static linearity at Fs=40Msps, and

Fin=10MHz.

For each channel, a voltage reference is integrat-

ed to simplify the design and minimize external

components. It is nevertheless possible to use the

circuit with external references.

Each ADC outputs are multiplexed in a common

bus with small number of pins.

Differential or single-ended analog inputs can be

applied. A tri-state capability is available for the

outputs, allowing chip selection.

The TSA1005-40 is available in extended (0 to

+85擄C) temperature range, in a small 48 pins

TQFP package.

APPLICATIONS

BLOCK DIAGRAM

+2.5V/3.3V

CLK

SELECT OEB

VCCBE

Timing

VINI

VINBI

VINCMI

VREFPI

VREFMI

IPOL

VREFPQ

VREFMQ

VINCMQ

AD 10

I channel

common mode

10

REF I

Polar.

M

U

X

REF Q

common mode

10

10

D0

TO

D9

Buffers

VINQ

VINBQ

AD 10

Q channel

10

s

s

s

s

s

Medical imaging and ultrasound

I/Q signal processing applications

High speed data acquisition system

Portable instrumentation

High resolution fax and scanners

GND

GNDBE

PACKAGE

ORDER CODE

Part Number

TSA1005-40IF

TSA1005-40IFT

EVAL1005/BA

Temperature

Range

0擄C to +85擄C

0擄C to +85擄C

Package

TQFP48

TQFP48

Condition ing

Tray

Tape & Reel

Marking

SA1005I

SA1005I

7

脳

7 mm TQFP48

Evaluation board

September 2002

1/19

This is preliminary information on a new product now in development or undergoing evaluation. Details are subject to change without notice

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