LTC1664 Просмотр технического описания (PDF) - Linear Technology
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LTC1664 Datasheet PDF : 16 Pages
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LTC1664
Typical Application
An 11-Bit Pin Driver VH and VL Adjustment Circuit for ATE Applications
5V
0.1µF
CS/LD
DIN
SCK
11
CLR
7
9
8
16
VCC
U1 LTC1664
DAC A
DAC B
DAC C
DAC D
GND
1
6
REF
VH
(FROM MAIN DAC)
RG
VA 50k
2
10V
RF
5k
8
3+
U2A
2
LT1368
–
RG
4
VB 50k
– 5V
3
VL
(FROM MAIN DAC)
0.1µF
1
0.1µF
RF
5k
RG
VC 50k
4
RF
5k
5+
U2B
7
6
LT1368
–
RG
RF
VD 50k
5k
5
VH′ = VH + ∆VH
0.1µF
VL′
VL′ = VL + ∆VL
VH
VL
PIN
DRIVER
0.1µF
LOGIC
DRIVE
VH′
VOUT
1664 TA03
CODE A
1023
1023
1023
512
512
512
0
0
0
CODE B
1023
512
0
1023
512
0
1023
512
0
∆VH, ∆VL
0
+ 250mV
+500mV
– 250mV
0
+ 250mV
–500mV
–250mV
0
VA = VC = 2.5V
VH′
=
VH
+
RF
RG
(VA
–
VB)
VL′ = VL +
RF
RG
(VC
–
VD)
For Resistor Values Shown:
Adjustment Range = ±500mV
Adjustment Step Size = 500µV
Related Parts
PART NUMBER
LTC1665/LTC1660
LTC1661
LTC1662
LTC1663
LTC1446/LTC1446L
DESCRIPTION
Octal 8-/10-Bit VOUT DAC in 16-Pin Narrow SSOP
Dual 10-Bit VOUT DAC in 8-Pin MSOP Package
Ultra Low Power Dual 10-Bit VOUT DAC in 8-Pin MSOP Package
Single 10-Bit VOUT DAC with 2-Wire Interface in SOT-23 Package
Dual 12-Bit VOUT DACs in SO-8 Package with Internal Reference
LTC1448
Dual 12-Bit VOUT DAC in SO-8 Package
LTC1454/LTC1454L Dual 12-Bit VOUT DACs in SO-16 Package with Added Functionality
LTC1458/LTC1458L Quad 12-Bit Rail-to-Rail Output DACs with Added Functionality
LT1460
LTC1590
LTC1654
LTC1659
Micropower Precision Series Reference, 2.5V, 5V, 10V Versions
Dual 12-Bit IOUT DAC in SO-16 Package
Dual 14-Bit DAC in SO-8 Footprint
Single Rail-to-Rail 12-Bit VOUT DAC in 8-Lead MSOP Package
COMMENTS
VCC = 2.7V to 5.5V, 60μA per DAC, Rail-to-Rail Output
VCC = 2.7V to 5.5V, 60μA per DAC, Rail-to-Rail Output
VCC = 2.7V to 5.5V, 1.5μA per DAC, Rail-to-Rail Output
VCC = 2.7V to 5.5V, Internal Reference, 60µA
LTC1446: VCC = 4.5V to 5.5V, VOUT = 0V to 4.095V
LTC1446L: VCC = 2.7V to 5.5V, VOUT = 0V to 2.5V
VCC = 2.7V to 5.5V, External Reference Can Be Tied to VCC
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: VCC = 4.5V to 5.5V, VOUT = 0V to 4.095V
LTC1458L: VCC = 2.7V to 5.5V, VOUT = 0V to 2.5V
0.075% Max, 10ppm/°C Max, Only 130µA Supply Current
VCC = 4.5V to 5.5V, 4-Quadrant Multiplication
1LBS DNL, Selectable Speed/Power
VCC = 2.7V to 5.5V, Low Power Multiplying VOUT DAC. Output
Swings from GND to REF. REF Input Can Be Tied to VCC
16 Linear Technology Corporation
1630 McCarthy Blvd., Milpitas, CA 95035-7417
(408) 432-1900 ● FAX: (408) 434-0507 ● www.linear.com
1664fa
LT 0112 REV A • PRINTED IN USA
LINEAR TECHNOLOGY CORPORATION 2000
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