LTC1665C View Datasheet(PDF) - Linear Technology

Part Name

Description

MFG CO.

LTC1665C

Micropower Octal 8-Bit and 10-Bit DACs

Linear Technology 

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LTC1665/LTC1660

TYPICAL APPLICATION

A Pin Driver VH and VL Adjustment Circuit for ATE Applications

5V

0.1μF

11

16

6

CLR

VCC

REF

U1 LTC1660

DAC H

DAC A

DAC G

DAC B

DAC F

DAC C

CS/LD

7

DIN

9

SCK

8

DAC E

DAC D

GND

1

VH

(FROM MAIN DAC)

RG

VA 50k

2

10V

RF

5k

3+

U2A

LT1369

2 –QUAD

RG

VB 50k

– 5V

3

VL

(FROM MAIN DAC)

RG

VC 50k

4

RG

VD 50k

5

RF

5k

5+

U2B

LT1369

6 –QUAD

0.1μF

1

0.1μF

RF

5k

7

RF

5k

Note: DACs E Through H Can Be

Configured for a Second Pin Driver

With U2C and U2D of the LT1369

CODE A

512

512

512

CODE B

1023

512

0

ΔVH, ΔVL

– 250mV

0

+ 250mV

VH´ = VH + ΔVH

VH´

0.1μF

VL´

VL´ = VL + VL

VH

VL

PIN DRIVER

(1 OF 2)

0.1μF

166560 TA03

LOGIC

DRIVE

VOUT

VA = VC = 2.5V

VH´

=

VH

+

RF

RG

(VA

–

VB)

VL´

=

VL

+

RF

RG

(VC

–

VD)

For Resistor Values Shown:

Adjustment Range = 250mV

Adjustment Step Size = 500μV

RELATED PARTS

PART NUMBER DESCRIPTION

COMMENTS

LTC1661

LTC1663

LTC1446/

LTC1446L

LTC1448

LTC1454/

LTC1454L

LTC1458/

LTC1458L

LTC1590

LTC1659

LT1460

Dual 10-Bit VOUT DAC in 8-Lead MSOP Package

Single 10-Bit VOUT DAC in SOT-23 Package

Dual 12-Bit VOUT DACs in SO-8 Package with Internal Reference

Dual 12-Bit VOUT DAC in SO-8 Package

Dual 12-Bit VOUT DACs in SO-16 Package with Added Functionality

Quad 12-Bit Rail-to-Rail Output DACs with Added Functionality

Dual 12-Bit IOUT DAC in SO-16 Package

Single Rail-to-Rail 12-Bit VOUT DAC in 8-Lead MSOP Package

VCC: 2.7V to 5.5V

Micropower Precision Series Reference, 2.5V, 5V, 10V Versions

VCC = 2.7V to 5.5V Micropower 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

VCC = 4.5V to 5.5V, 4-Quadrant Multiplication

Low Power Multiplying VOUT DAC. Output Swings from GND to

REF. REF Input Can Be Tied to VCC

0.075% Max, 10ppm/°C Max, Only 130μA Supply Current

166560fa

18 LinearTechnology Corporation

1630 McCarthy Blvd., Milpitas, CA 95035-7417

(408) 432-1900 ● FAX: (408) 434-0507 ● www.linear.com

LT 0112 REV A • PRINTED IN USA

© LINEAR TECHNOLOGY CORPORATION 1999

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