THS1206

12-BIT 6 MSPS, SIMULTANEOUS SAMPLING

ANALOG-TO-DIGITAL CONVERTERS

SLAS217D – MAY 1999 – REVISED APRIL 2000

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POST OFFICE BOX 655303

features

Signals or 2 Differential Signals or

Combination of Both

and

±5% Accuracy

applications

description

The THS1206 is a CMOS, low-power, 12-bit,

6 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 are used to program the ADC into the desired mode. The THS1206 consists of four 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 single conversion mode, a single and

simultaneous conversion of up to four inputs can be initiated by using the single conversion start signal

(CONVST). The conversion clock in single conversion mode is generated internally using a clock oscillator

circuit. In continuous conversion mode, an external clock signal is applied to the CONV_CLK input of the

THS1206. The internal clock oscillator is switched off in continuous conversion mode.

The THS1206C is characterized for operation from 0

°C to 70°C, the THS1206I is characterized for operation

from –40

°C to 85°C, the THS1206Q is characterized to meet the rigorous requirements of the automotive

environment from –40

°C to 125°C, and the THS1206M is characterized for operation over the full military

temperature range of –55

°C to 125°C.

Copyright

© 2000, Texas Instruments Incorporated

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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D0

D1

D2

D3

D4

D5

BGND

D6

D7

D8

D9

D10/RA0

D11/RA1

CONV_CLK (CONVST)

DATA_AV

AINP

AINM

BINP

BINM

REFIN

REFOUT

REFP

REFM

AGND

CS0

CS1

WR (R/W)

RD

DGND

DA PACKAGE

(TOP VIEW)

On products compliant to MIL-PRF-38535, all parameters are tested

unless otherwise noted. On all other products, production

processing does not necessarily include testing of all parameters.