1

LTC2602/LTC2612/LTC2622

2602f

REF

CS/LD

SCK

GND

SDI

2602 BD01

8

1

2

4

3

5

7

6

16-BIT

DAC A

16-BIT

DAC B

DECODE

CONTROL

LOGIC

24-BIT SHIFT REGISTER

APPLICATIO S

FEATURES

DESCRIPTIO

BLOCK DIAGRA

Dual 16-/14-/12-Bit

Rail-to-Rail DACs in 8-Lead MSOP

The LTC

12-bit, 2.5V-to-5.5V rail-to-rail voltage-output DACs, in a

tiny 8-lead MSOP package. They have built-in high per-

formance output buffers and are guaranteed monotonic.

These parts establish advanced performance standards

for output drive, crosstalk and load regulation in single-

supply, voltage output multiples.

The parts use a simple SPI/MICROWIRE™ compatible

3-wire serial interface which can be operated at clock

rates up to 50MHz.

The LTC2602/LTC2612/LTC2622 incorporate a power-

on reset circuit. During power-up, the voltage outputs

rise less than 10mV above zero scale, and after power-

up, they stay at zero scale until a valid write and update

take place.

s

Smallest Pin-Compatible Dual DACs:

LTC2602: 16-Bits

LTC2612: 14-Bits

LTC2622: 12-Bits

s

Guaranteed 16-Bit Monotonic Over Temperature

s

Wide 2.5V to 5.5V Supply Range

s

Low Power Operation: 300

µA per DAC at 3V

s

Individual Channel Power-Down to 1

µA, Max

s

Ultralow Crosstalk between DACs (30

µV)

s

High Rail-to-Rail Output Drive (

±15mA)

s

Double-Buffered Data Latches

s

Pin-Compatible 10-Bit Version (LTC1661)

s

Tiny 8-Lead MSOP Package

s

Mobile Communications

s

Process Control and Industrial Automation

s

Instrumentation

s

Automatic Test Equipment

Differential Nonlinearity (DNL)(LTC2602)

, LTC and LT are registered trademarks of Linear Technology Corporation.

CODE

0

16384

32768

49152

65535

2602 TA01

1.0

0.8

0.6

0.4

0.2

0

–0.2

–0.4

–0.6

–0.8

–1.0

LTC2602

MICROWIRE is a trademark of National Semiconductor Corporation.