LTC1659
12
1659fa
Linear Technology Corporation
1630 McCarthy Blvd., Milpitas, CA 95035-7417
(408) 432-1900
●
FAX: (408) 434-0507
●
www.linear.com
© LINEAR TECHNOLOGY CORPORATION 1997
LT 0507 REV A• PRINTED IN USA
RELATED PARTS
TYPICAL APPLICATION
Digitally Programmable Current Source
–
+
LTC1659
LT
®
1077
5V
GND
μP
1659 TA04
D
IN
R
A
510Ω
5%
R
L
V
OUT
CLK
Q1
2N3440
CS/LD
V
S
+ 6V TO 100V
FOR R
L
≤ 50Ω
0.1μF
V
CC
REF
I
OUT
= ≈ 0mA TO 10mA
D
IN
• 5
4096 • R
A
PART NUMBER DESCRIPTION COMMENTS
LTC1257 Single 12-Bit V
OUT
DAC, Full Scale: 2.048V, V
CC
: 4.75V to 15.75V,
Reference Can Be Overdriven Up to 12V, i.e., FS
MAX
= 12V
5V to 15V Single Supply, Complete V
OUT
DAC in
SO-8 Package
LTC1446/LTC1446L Dual 12-Bit V
OUT
DACs in SO-8 Package LTC1446: V
CC
= 4.5V to 5.5V, V
OUT
= 0V to 4.095V
LTC1446L: V
CC
= 2.7V to 5.5V, V
OUT
= 0V to 2.5V
LTC1448 Dual 12-Bit V
OUT
DAC, V
CC
: 2.7V to 5.5V Output Swings from GND to REF. REF Input Can Be Tied
to V
CC
LTC1450/LTC1450L Single 12-Bit V
OUT
DACs with Parallel Interface LTC1450: V
CC
= 4.5V to 5.5V, V
OUT
= 0V to 4.095V
LTC1450L: V
CC
= 2.7V to 5.5V, V
OUT
= 0V to 2.5V
LTC1451 Single Rail-to-Rail 12-Bit DAC, Full Scale: 4.095V, V
CC
: 4.5V to 5.5V,
Internal 2.048V Reference Brought Out to Pin
5V, Low Power Complete V
OUT
DAC in SO-8 Package
LTC1452 Single Rail-to-Rail 12-Bit V
OUT
Multiplying DAC, V
CC
: 2.7V to 5.5V Low Power, Multiplying V
OUT
DAC with Rail-to-Rail
Buffer Amplifi er in SO-8 Package
LTC1453 Single Rail-to-Rail 12-Bit V
OUT
DAC, Full Scale: 2.5V, V
CC
: 2.7V to 5.5V 3V, Low Power, Complete V
OUT
DAC in SO-8 Package
LTC1454/LTC1454L Dual 12-Bit V
OUT
DACs in SO-16 Package with Added Functionality LTC1454: V
CC
= 4.5V to 5.5V, V
OUT
= 0V to 4.095V
LTC1454L: V
CC
= 2.7V to 5.5V, V
OUT
= 0V to 2.5V
LTC1456 Single Rail-to-Rail Output 12-Bit DAC with Clear Pin, Full Scale: 4.095V,
V
CC
: 4.5V to 5.5V
Low Power, Complete V
OUT
DAC in SO-8 Package with
Clear Pin
LTC1458/LTC1458L Quad 12 Bit Rail-to-Rail Output DACs with Added Functionality LTC1458: V
CC
= 4.5V to 5.5V, V
OUT
= 0V to 4.095V
LTC1458L: V
CC
= 2.7V to 5.5V, V
OUT
= 0V to 2.5V