LTC2605/LTC2615/LTC2625

1

2605fa

TYPICAL APPLICATION

FEATURES

DESCRIPTION

Octal 16-/14-/12-Bit

Rail-to Rail DACs in 16-Lead SSOP

12-bit, 2.7V to 5.5V rail-to-rail voltage-output DACs

in 16-lead narrow SSOP packages. They have built-in

high performance output buffers and are guaranteed

monotonic.

These parts establish new board-density benchmarks

for 16-/14-bit DACs and advance performance standards

for output drive, crosstalk and load regulation in single

supply, voltage-output multiples.

LTC2605/LTC2615/LTC2625 operate in both the standard

mode (maximum clock rate of 100kHz) and the fast mode

(maximum clock rate of 400kHz).

The LTC2605/LTC2615/LTC2625 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. The

power-on reset circuit resets the LTC2605-1/\LTC2615-1/

LTC2625-1 to mid-scale. The voltage output stays at mid-

scale until a valid write and update takes place.

Differential Nonlinearity (LTC2605)

APPLICATIONS

LTC2605: 16 Bits

LTC2615: 14 Bits

LTC2625: 12 Bits

Zero-Scale

to Mid-Scale

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.

2

15

1

GND

REF

CA2

SCL

CA0

CA1

SDA

2605/15/25 BD

16

DAC A

3

14

4

13

5

7

6

8

10

11

9

12

2-WIRE INTERFACE

32-BIT SHIFT REGISTER

DAC H

DAC B

DAC G

DAC C

DAC F

DAC D

DAC E

CODE

0

16384

32768

49152

65535

2605 G02

1.0

0.8

0.6

0.4

0.2

0

–0.2

–0.4

–0.6

–0.8

–1.0