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FEATURES

s

low power consumption: 85mW at

20Msps (using external references).

s

Single supply voltage: 2.5V

s

Digital I/O supply voltage: 2.5V/3.3V com-

patible

s

-90.5dBc SFDR and 73.1dBc SNR at

Fin=10MHz when using external refer-

ences (VINpp=2.5V)

s

Differential analog input-driving

s

Built-in reference voltage with external

bias capabilities

s

Digital output high impedance mode

1) OPTIMWATT(TM) is a ST deposited trademark for products features allowing

optimization of power efficiency at chip/application level.

DESCRIPTION

The TSA1401 is a 14-bit, 20MHz sampling

frequency Analog to Digital Converter using deep

submicron CMOS technology combining high

performances

with

very

low

power

consumption.The TSA1401 is based on a pipeline

structure with digital error correction to provide

excellent

static

linearity

and

dynamic

performances.

Typically designed for multi-channel applications

and high-end imaging equipment, where low

consumption is a must, the TSA1401 only

dissipates 85mW at 20Msps when using external

references, 110mW using internal references. Its

power consumption adapts relative to sampling

frequency. Differential signals are applied on the

inputs for optimum performance. The TSA1401

reaches an SFDR of -90.5dBc and an SNR of

73.1dBc at Fin=10MHz when increasing the input

dynamic range to 2.5V by using the voltage

reference, TS431 (1.24V).

A tri-state capability is available on the output

buffers, enabling a Chip Select.The TSA1401 is

available in the industrial temperature range of -

40°C to +85°C and in a small 48-lead TQFP

package.

APPLICATIONS

s

High-end infra-red imaging

s

X-Ray medical imaging

s

High-end CCD cameras

s

Scanners and digital copiers

s

Test instrumentation

s

Wireless communication

ORDER CODES

PIN CONNECTIONS (top view)

PACKAGE

Part Number

Temperature

Range

Package

Conditioning

Marking

TSA1401IF

-40°C to +85°C

TQFP48

Tray

SA1401

TSA1401IFT

-40°C to +85°C

TQFP48

Tape & Reel

SA1401

EVAL1401/AB

Evaluation board

index

corner

1

2

3

4

5

6

7

8

9

10

11

32

31

30

29

28

27

26

13 14 15 16 17 18 19 20 21 22

47

25

33

12

23 24

35

34

36

48

44 43 42 41 40 39 38 37

46 45

TSA1401

VREFM

VREFP

VINB

AGND

AGND

AGND

VIN

AVCC

AVCC

AGND

IPOL

INCM

D1

D2

D3

D4

D5

D6

D7

D8

D11

D9

D10

D12

index

corner

1

2

3

4

5

6

7

8

9

10

11

32

31

30

29

28

27

26

13 14 15 16 17 18 19 20 21 22

47

25

33

12

23 24

35

34

36

48

44 43 42 41 40 39 38 37

46 45

TSA1401

VREFM

VREFP

VINB

AGND

AGND

AGND

VIN

AVCC

AVCC

AGND

IPOL

INCM

D1

D2

D3

D4

D5

D6

D7

D8

D11

D9

D10

D12

7 x 7 mm TQFP48

TSA1401

14-BIT, 20MSPS, 85mW A/D CONVERTER

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December 2003