LTC1401(RevA) View Datasheet(PDF) - Linear Technology

Part Name

Description

MFG CO.

LTC1401
(Rev.:RevA)

Complete SO-8, 12-Bit, 200ksps ADC with Shutdown

Linear Technology 

LTC1401

TYPICAL APPLICATIONS

Interface to the TMS320C50’s TDM Serial Port (Frame Sync is Generated from TFSX)

5V

3V

+

10µF

0.1µF

+

8

1 VCC SHDN CLK 6

UNIPOLAR

INPUT

2 AIN

LTC1401

CONV

7

3 VREF

5

DOUT

GND

10µF

0.1µF

4

2.5MHz EXTERNAL CLOCK CLR LD P T

TMS320C50

QC 74HC161

TCLKX

CLK A B C D

TCLKR

TFSX

TFSR

CLKOUT

20MHz

TDR

LTC1401 • TA04a

Logic Analyzer Waveforms Show 6.4µs Throughput Rate (Input Voltage = 0.765V, Output Code = 0101 1111 1010 = 153010)

14

1401 TA5b

Data from the LTC1401 Loaded into the TMS320C50’s TRCV Register

X RDY D11 D10 D9 D8 D7 D6 D5 D4 D3 D2 D1 D0 X X

1401 TA4c

Data Stored in the TMS320C50’s Memory (in Right Justified Format)

0 0 0 RDY D11 D10 D9 D8 D7 D6 D5 D4 D3 D2 D1 D0

1401 TA4d

1401fa

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