LTC1664

1

1664fa

Block Diagram

Features

Description

Micropower Quad

10-Bit DAC

10-bit digital-to-analog converters (DACs) in a tiny 16-pin

narrowSSOPpackage.EachbufferedDACdrawsjust59µA

total supply current, yet is capable of supplying DC output

currents in excess of 5mA and reliably driving capacitive

loads of up to 1000pF. Sleep mode further reduces total

supply current to 1µA.

Linear Technology’s proprietary, inherently monotonic

voltage interpolation architecture provides excellent lin-

earity while allowing for an exceptionally small external

form factor.

Ultralow supply current, power-saving sleep mode and

extremely compact size make the LTC1664 ideal for

battery-powered applications, while its ease of use, high

performance and wide supply range make it an excellent

choice as a general-purpose converter.

L

, LT, LTC, LTM, Linear Technology and the Linear logo are registered trademarks of Linear

Technology Corporation. All other trademarks are the property of their respective owners.

Differential Nonlinearity (DNL)

applications

n

Tiny: 4 DACs in the Board Space of an SO-8

n

Micropower: 59µA per DAC Plus

1µA Sleep Mode for Extended Battery Life

n

Wide 2.7V to 5.5V Supply Range

n

Rail-to-Rail Voltage Outputs Drive 1000pF

n

Reference Range Includes Supply for Ratiometric

n

Reference Input Impedance is Code-Independent

—Eliminates External Reference Buffer

n

Individually Addressable DACs

n

Differential Nonlinearity: ≤ ±0.75LSB Max

n

Pin-Compatible Octal Version Available (LTC1660)

n

Mobile Communications

n

Remote Industrial Devices

n

Automatic Calibration for Manufacturing

n

Portable Battery-Powered Instruments

n

Trim/Adjust Applications

CODE

0

256

512

768

1023

1664 G02

1.0

0.8

0.6

0.4

0.2

0

–0.2

–0.4

–0.6

–0.8

–1.0

2

5

1

GND

REF

CS/LD

SCK

CLR

1664 BD

16

10-BIT

DAC A

10-BIT

DAC D

3

4

10-BIT

DAC B

10-BIT

DAC C

7

6

8

10

11

9

ADDRESS

DECODER

CONTROL

LOGIC

SHIFT REGISTER