THS10082

SLAS254B – MAY 2002 – REVISED NOVEMBER 2002

10BIT, TWO ANALOG INPUT, 8MSPS, SIMULTANEOUS SAMPLING

ANALOGTODIGITAL CONVERTER

FEATURES

Signals or One Differential Signal

and

±5% Accuracy

APPLICATIONS

DESCRIPTION

The THS10082 is a CMOS, low-power, 10-bit, 8 MSPS

analog-to-digital converter (ADC). The speed, resolution,

bandwidth, and single-supply operation are suited for

applications in radar, imaging, high-speed acquisition, and

communications. A multistage pipelined architecture with

output error correction logic provides for no missing codes

over the full operating temperature range. Internal control

registers allow for programming the ADC into the desired

mode. The THS10082 consists of two analog inputs,

which are sampled simultaneously. These inputs can be

selected individually and configured to single-ended or

differential inputs. An integrated 16 word deep FIFO

allows the storage of data in order to take the load off

of the processor connected to the ADC. Internal

reference voltages for the ADC (1.5 V and 3.5 V) are

provided.

An external reference can also be chosen to suit the dc

accuracy and temperature drift requirements of the

application. Two different conversion modes can be

selected. In the single conversion mode, a single and

simultaneous conversion can be initiated by using the

single conversion start signal (CONVST). The conversion

clock in the single conversion mode is generated internally

using a clock oscillator circuit. In the continuous

conversion mode, an external clock signal is applied to the

CONV_CLK input of the THS10082. The internal clock

oscillator is switched off in the continuous conversion

mode.

The THS10082C is characterized for operation from 0

°C

to 70

°C, and the THS10082I is characterized for operation

from –40

°C to 85°C.

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

32

31

30

29

28

27

26

25

24

23

22

21

20

19

18

17

D0

D1

D2

D3

D4

D5

BGND

D6

D7

D8

D9

RA0

RA1

CONV_CLK (CONVST)

DATA_AV

OV_FL

RESET

AINP

AINM

REFIN

REFOUT

REFP

REFM

AGND

CS0

CS1

WR (R/W)

RD

DGND

DA PACKAGE

(TOP VIEW)

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.

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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Copyright

 2002, Texas Instruments Incorporated