AIM AT2101 Datasheet

AT2101

12-Bit 6MSPS A/D CONVERTER

Features

˙Resolution: 12-Bit ± 0.5 LSB(DNL)
˙Maximum Conversion Rate: 6 MSPS
˙Built-in Sample and Hold Function
˙Built-in Reference Voltage
˙Single +5.0 V Power Supply
˙Three-State TTL Compatible Output
˙No Missing Code

Applications

˙Video Digitizing
˙Personal Computer Video
˙Multimedia
˙Digital Television

General Description

The AT2101 is a pipeline CMOS analog-to­digital converter with modified coding algorithm
and capable of digitizing full-scale analog input
signals into 12-bit digital words at sample rate of
6 MSPS.

This high performance converter includes a 12­bit quantizer, high bandwidth sample/hold, and
an internal reference, which eliminates the need
for external reference circuitry. The AT2101
employs digital error correction techniques to
provide excellent differential linearity for
imaging applications.

The AT2101 operates from a single +5.0V power
supply. All digital inputs are CMOS compatible
and the tri-state outputs are TTL-compatible. The
AT2101 is ideal for most video and image
processing applications that require low power
dissipation and low cost.

Block Diagram

VIN

S/H

AVDD

CLK

Timing Circuitry

12-Bit
Pipelined
A/D Core

VRT

3.5V

Internal Reference Generator

VCM

VRB

1.5V

Modified

Coding

algorithm

AGND

DVDD

3-State

Output

/OE

D0

.
.

D11

DGND

2F, No.10, Prosperity RD. II, Science-Based Industrial Park, Hsinchu 300,Taiwan, R.O.C.
Tel: [phone] WWW: http://www.aimtron.com.tw
Fax: [phone] Email: [e-mail]

1

AT2101

12-Bit 6MSPS A/D CONVERTER

Pin Configuration

AT2101 (28-Pin 300 mil SOP)

DGND

D0

D1

D2

D3

D4

D5

D6

D7

D8

D9

1

2

3

4

5

6

7

8

9

10

11

28

27

26

25

24

23

22

21

20

19

18

NC

VIN

VCM

NC

AVDD

AVDD

NC

NC

AGND

AGND

NC

CLK

D10

D11 /OE

2F, No.10, Prosperity RD. II, Science-Based Industrial Park, Hsinchu 300,Taiwan, R.O.C.
Tel: [phone] WWW: http://www.aimtron.com.tw
Fax: [phone] Email: [e-mail]

12

13

14

2

17

16

15

NC

DVDD

AT2101

12-Bit 6MSPS A/D CONVERTER

Pin Description

PIN NAME FUNCTION PIN NAME FUNCTION

16 DV

DD

Digital +5V Supply 2324AV

DD

Analog +5V Supply

1 DGND Digital GND 1920AGND Analog GND

2~11 D0~D9

Digital Output Data
D0 (LSB) ~D9

13
14

D10
D11

Digital Output Data
D11 (MSB)

Output Enable Control

15 OE

D0~D11 Output Enabled
When OE = Low

26 VCM Common-Mode Voltage

Output
D0~D11 at High Impedance
When OE= High

12 CLK Clock Input 27 VIN Analog Input

17,18
21,22

NC

25,28

Absolute Maximum Ratings (Beyond which damage may occur) 250C

Supply Voltages

…………………………………………...-0.5 to +7.0 V

V

DD

Input Voltages

Analog Input ………………………………...AGND to V

Reference Input Voltage …………………...AGND to V

ESD Susceptibility ………………………………± 1,500V

DD

DD

2F, No.10, Prosperity RD. II, Science-Based Industrial Park, Hsinchu 300,Taiwan, R.O.C.
Tel: [phone] WWW: http://www.aimtron.com.tw
Fax: [phone] Email: [e-mail]

Temperature

Operating Temperature …………..…………-20 to +70

Junction Temperature ………………………………175

Lead Temperature, (Soldering 10 seconds) ……..300

Storage Temperature …………………...…-55 to +125

3

0

C

0

C

0

C

0

C