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LTC1597ACG

14-Bit and 16-Bit Parallel Low Glitch Multiplying DACs with 4-Quadrant Resistors

Linear Technology 

LTC1591/LTC1597

FEATURES

14-Bit and 16-Bit Parallel

Low Glitch Multiplying DACs

with 4-Quadrant Resistors

DESCRIPTION

n True 16-Bit Performance Over Industrial

Temperature Range

n DNL and INL: 1LSB Max

n On-Chip 4-Quadrant Resistors Allow Precise 0V to

10V, 0V to –10V or ±10V Outputs

n Pin Compatible 14- and 16-Bit Parts

n Asynchronous Clear Pin

n LTC1591/LTC1597: Reset to Zero Scale

n LTC1591-1/LTC1597-1: Reset to Mid-Scale

n Glitch Impulse < 2nV-s

n Low Power Consumption: 10µW Typ

n Power-On Reset

n 28-Lead SSOP Package

APPLICATIONS

n Process Control and Industrial Automation

n Direct Digital Waveform Generation

n Software-Controlled Gain Adjustment

n Automatic Test Equipment

The LTC®1591/LTC1597 are pin compatible, parallel

input 14-bit and 16-bit multiplying current output DACs

that operate from a single 5V supply. INL and DNL are

accurate to 1LSB over the industrial temperature range

in both 2- and 4-quadrant multiplying modes. True 16-

bit 4-quadrant multiplication is achieved with on-chip

4-quadrant multiplication resistors.

These DACs include an internal deglitcher circuit that

reduces the glitch impulse to less than 2nV-s (typ). The

asynchronous CLR pin resets the LTC1591/LTC1597 to

zero scale and LTC1591-1/LTC1597-1 to mid-scale.

The LTC1591/LTC1597 are available in the 28-pin SSOP

package and are specified over the industrial temperature

range.

For serial interface 16-bit current output DACs refer to the

LTC1595/LTC1596 data sheet.

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.

TYPICAL APPLICATION

16-Bit, 4-Quadrant Multiplying DAC with a

Minimum of External Components

VREF

+

5V

LT®1468

–

0.1µF

15pF

3

2

1 23 4

5

R1

RCOM

REF VCC ROFS

RFB

16

DATA

INPUTS

R1

R2

LTC1597-1

ROFS

RFB

16-BIT DAC

IOUT1 6

AGND 7

10 TO 21,

24 TO 27

WR LD CLR

WR

9 8 28

LD

CLR

DGND 22

15pF

–

LT1468

+

VOUT =

–VREF

TO VREF

1591/97 TA01

LTC1591/LTC1591-1 Integral Nonlinearity

1.0

0.8

VREF = 10V

VOUT = ±10V BIPOLAR

0.6

0.4

0.2

0

–0.2

–0.4

–0.6

–0.8

–1.0

0

4096

8192

12288 16383

DIGITAL INPUT CODE

1591/97 TA02

LTC1597/LTC1597-1 Integral Nonlinearity

1.0

0.8

VREF = 10V

VOUT = ±10V BIPOLAR

0.6

0.4

0.2

0

–0.2

–0.4

–0.6

–0.8

–1.0

0

16384 32768 49152

DIGITAL INPUT CODE

65535

1591/97 TA03

For more information www.linear.com/LTC1591

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