
LTC1665/LTC1660
18
166560fa
Linear Technology Corporation
1630 McCarthy Blvd., Milpitas, CA 95035-7417
(408) 432-1900 ● FAX: (408) 434-0507 ● www.linear.com
LINEAR TECHNOLOGY CORPORATION 1999
LT 0112 REV A PRINTED IN USA
RELATED PARTS
TYPICAL APPLICATION
PART NUMBER
DESCRIPTION
COMMENTS
LTC1661
Dual 10-Bit VOUT DAC in 8-Lead MSOP Package
VCC = 2.7V to 5.5V Micropower Rail-to-Rail Output
LTC1663
Single 10-Bit VOUT DAC in SOT-23 Package
VCC = 2.7V to 5.5V, Internal Reference, 60μA
LTC1446/
LTC1446L
Dual 12-Bit VOUT DACs in SO-8 Package with Internal Reference
LTC1446: VCC = 4.5V to 5.5V, VOUT = 0V to 4.095V
LTC1446L: VCC = 2.7V to 5.5V, VOUT = 0V to 2.5V
LTC1448
Dual 12-Bit VOUT DAC in SO-8 Package
VCC = 2.7V to 5.5V, External Reference Can Be Tied to VCC
LTC1454/
LTC1454L
Dual 12-Bit VOUT DACs in SO-16 Package with Added Functionality LTC1454: VCC = 4.5V to 5.5V, VOUT = 0V to 4.095V
LTC1454L: VCC = 2.7V to 5.5V, VOUT = 0V to 2.5V
LTC1458/
LTC1458L
Quad 12-Bit Rail-to-Rail Output DACs with Added Functionality
LTC1458: VCC = 4.5V to 5.5V, VOUT = 0V to 4.095V
LTC1458L: VCC = 2.7V to 5.5V, VOUT = 0V to 2.5V
LTC1590
Dual 12-Bit IOUT DAC in SO-16 Package
VCC = 4.5V to 5.5V, 4-Quadrant Multiplication
LTC1659
Single Rail-to-Rail 12-Bit VOUT DAC in 8-Lead MSOP Package
VCC: 2.7V to 5.5V
Low Power Multiplying VOUT DAC. Output Swings from GND to
REF. REF Input Can Be Tied to VCC
LT1460
Micropower Precision Series Reference, 2.5V, 5V, 10V Versions
0.075% Max, 10ppm/°C Max, Only 130μA Supply Current
2
6
16
11
DAC A
CLR
VCC
REF
5V
U1 LTC1660
0.1μF
VA
3
VH = VH + ΔVH
VL = VL + VL
VL
1
2
VH
(FROM MAIN DAC)
VL
(FROM MAIN DAC)
10V
–5V
RG
50k
RF
5k
VB
VC
VD
GND
166560 TA03
3
DAC B
0.1μF
RG
50k
RG
50k
RG
50k
–
+
U2A
LT1369
QUAD
0.1μF
5
7
6
RF
5k
RF
5k
RF
5k
LOGIC
DRIVE
PIN DRIVER
(1 OF 2)
DAC C
DAC D
DAC H
DAC G
DAC F
DAC E
CS/LD
SCK
DIN
4
5
8
1
9
7
–
+
U2B
LT1369
QUAD
VL
VOUT
VH
CODE A
512
CODE B
1023
512
0
ΔVH, ΔVL
– 250mV
0
+ 250mV
VA = VC = 2.5V
For Resistor Values Shown:
Adjustment Range = 250mV
Adjustment Step Size = 500μV
Note: DACs E Through H Can Be
Congured for a Second Pin Driver
With U2C and U2D of the LT1369
VH = VH +
(VA – VB)
RF
RG
VL = VL +
(VC – VD)
RF
RG
VH
A Pin Driver VH and VL Adjustment Circuit for ATE Applications