1

LTC1595/LTC1596/LTC1596-1

Serial 16-Bit

Multiplying DACs

FEATURES

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SO-8 Package (LTC1595)

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DNL and INL: 1LSB Max

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Low Glitch Impulse: 1nV-s Typ

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Fast Settling to 1LSB: 2

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Pin Compatible with Industry Standard

12-Bit DACs: DAC8043 and DAC8143/AD7543

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4-Quadrant Multiplication

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Low Supply Current: 10

µA Max

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Power-On Reset

LTC1595/LTC1596: Resets to Zero Scale

LTC1596-1: Resets to Midscale

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3-Wire SPI and MICROWIRE

Serial Interface

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Daisy-Chain Serial Output (LTC1596)

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Asynchronous Clear Input

LTC1596: Clears to Zero Scale

LTC1596-1: Clears to Midscale

The LTC

16-bit multiplying current output DACs. The LTC1595 is

pin and hardware compatible with the 12-bit DAC8043 and

comes in 8-pin PDIP and SO packages. The LTC1596 is pin

and hardware compatible with the 12-bit DAC8143/AD7543

and comes in 16-pin PDIP and SO wide packages.

Both are specified over the industrial temperature range.

compared to the industry standard 12-bit DACs, so most

systems can be easily upgraded to true 16-bit resolution

and linearity without requiring more precise op amps.

These DACs include an internal deglitching circuit that

reduces the glitch impulse by more than ten times to less

than 1nV-s typ.

The DACs have a clear input and a power-on reset. The

LTC1595 and LTC1596 reset to zero scale. The LTC1596-1

is a version of the LTC1596 that resets to midscale.

MICROWIRE is a trademark of National Semiconductor Corporation.

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

LTC1595

GND

4

7

6

5

8

5V

CLOCK

DATA

LOAD

CLK

SRI

LD

1

2

3

OUT1

33pF

1595/96 TA01

LT

DIGITAL INPUT CODE

0

–1.0

–0.6

– 0.8

–0.4

0.4

0.6

0.8

1.0

–0.2

0.2

0

16384

32768

1595/96 TA02

49152

65535

Integral Nonlinearity

SO-8 Multiplying 16-Bit DAC Has Easy 3-Wire Serial Interface

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Process Control and Industrial Automation

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Software Controlled Gain Adjustment

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Digitally Controlled Filter and Power Supplies

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Automatic Test Equipment