LTC1401 Linear Technology, LTC1401 Datasheet - Page 20

• Manufacturer Part Number: LTC1401
• Description: Complete SO-8/ 12-Bit/ 200ksps ADC with Shutdown
• Manufacturer: Linear Technology

RELATED PARTS
LTC1401
12-Bit Parallel Output ADCs
PART NUMBER
LTC1273/LTC1275/LTC1276
LTC1274/LTC1277
LTC1278/LTC1279
LTC1282
LTC1409
LTC1410
12-Bit Serial Output ADCs
PART NUMBER
LTC1285/LTC1288
LTC1286/LTC1298
LTC1290
LTC1296
LTC1400
LTC1404
20
TYPICAL APPLICATIONS
Linear Technology Corporation
1630 McCarthy Blvd., Milpitas, CA 95035-7417
[phone] FAX: [phone] www.linear-tech.com
5/ 5V
5/ 5V
5/ 5V
5/ 5V
V
3V
5V
CC
Interface to the TMS320C50’s TDM Serial Port (Frame Sync is Generated from TFSX)
LTC1401 Interface to the ADSP2181’s SPORT0 (Frame Sync is Generated from RFS)
+
DESCRIPTION
Complete 5V Sampling 12-Bit ADCs with 70dB SINAD at Niquist
Low Power 12-Bit ADCs with Nap and Sleep Mode Shutdown
High Speed Sampling 12-Bit ADCs with Shutdown
Complete 3V 12-Bit ADCs with 12mW Power Dissipation
Low Power 12-Bit, 800ksps Sampling ADC
12-Bit, 1.25Msps Sampling ADC with Shutdown
10 F
SAMPLE RATE
12.5/11.1ksps
7.5/6.6ksps
46.5ksps
400ksps
600ksps
3V
50ksps
U
+
0.1 F
+
10 F
10 F
UNIPOLAR
3V
INPUT
0.1 F
+
0.1 F
10 F
1
2
3
UNIPOLAR
V
A
V
POWER DISSIPATION
CC
IN
REF
INPUT
LTC1401
0.1 F
SHDN
GND
0.48mW
1
2
3
1.25mV
8
30mW
30mW
75mW
75mW
4
V
A
V
CONV
CC
IN
REF
D
CLK
OUT
LTC1401
SHDN
GND
6
7
5
8
CONV
2.5MHz EXTERNAL CLOCK
D
CLK
OUT
TCLKX
TCLKR
TFSX
TFSR
TDR
TMS320C50
6
7
5
DESCRIPTION
3V, One or Two Input, Micropower, SO-8
One or Two Input, Micropower, SO-8
8 Input, Full-Duplex Serial I/O
8 Input, Half-Duplex Serial I/O, Power Shutdown Output
Complete 12-Bit, 400ksps, SO-8 ADC with Shutdown
Complete 12-Bit, 600ksps, SO-8 ADC with Shutdown
SCLKO
RFS
DR0
ADSP2181
COMMENTS
Lower Power and Cost Effective for
f
Lowest Power (10mW) f
Cost Effective 12-Bit ADCs with Convert Start Input
Best for 300ksps < f
Fully Specified for 3V Powered Applications,
f
Best Dynamic Performance
f
Best Dynamic Performance, THD = – 84dB and
SINAD = 71dB at Nyquist
CLK
20MHz
SAMPLE
SAMPLE
SAMPLE
LTC1401 • TA05a
OUT
QC
CLR LD
CLK A B C D
74HC161
300ksps
140ksps
800ksps, 80mW Dissipation
LTC1401 • TA04a
P T
5V
LINEAR TECHNOLOGY CORPORATION 1998
1401f LT/TP 0598 4K • PRINTED IN USA
SAMPLE
SAMPLE
600ksps
100ksps