1

LTC2605/LTC2615/LTC2625

2605f

Octal 16-/14-/12-Bit

Rail-to-Rail DACs in 16-Lead SSOP

The LTC

and 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- and 14-bit DACs and advance performance

standards for output drive, crosstalk and load regulation

in single-supply, voltage-output multiples.

The 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 midscale. The voltage output

stays at midscale until a valid write and update

takes place.

LTC2605: 16 Bits

LTC2615: 14 Bits

LTC2625: 12 Bits

µA per DAC at 3V

µA, Max

µV)

±15mA, Min)

Zero Scale

to Midscale

■

Instrumentation

Differential Nonlinearity (LTC2605)

APPLICATIO S

FEATURES

DESCRIPTIO

BLOCK DIAGRA

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

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

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

All other trademarks are the property of their respective owners.