SPT5400 datasheet(1/8 Pages) CADEKA

Part #	SPT5400

Description	13-BIT, OCTAL VOLTAGE-OUTPUT DAC WITH PARALLEL INTERFACE

PDF	8 Pages

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Manufacturer	CADEKA [Cadeka Microcircuits LLC.]

Direct Link	http://www.cadeka.com

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SPT5400

13-BIT, OCTAL VOLTAGE-OUTPUT DAC

WITH PARALLEL INTERFACE

FEATURES

• Full 13-bit performance without external adjustments

• Eight DACs in one package

• Buffered voltage outputs

• Guaranteed monotonic to 13 bits

• Unipolar or bipolar output swing to

±4.5 V

• Output settling time of 7

µs to ±1/2 LSB

• Double-buffered digital inputs

APPLICATIONS

• Automatic test equipment

• Flat-panel displays

• Arbitrary function generators

• Instrumentation

• Process control

DESCRIPTION

The SPT5400 has eight 13-bit voltage output digital-to-

analog converters on one chip. It operates from

±5 V

power supplies and has maximum voltage output swings

of up to

±4.5 V without the addition of external compo-

nents. Novel circuit topology allows for a guaranteed

monotonicity of 13 bits without the need for additional

circuitry. The SPT5400 has four separate reference volt-

age inputs, one for each pair of DACs. Four separate

analog ground pins allow for separate offset voltages for

each DAC pair. Each DAC can be asynchronously loaded

through a common 13-bit bus into a double-buffered set

of latches. All logic inputs are TTL/CMOS compatible.

The SPT5400 is available in a 44-lead PLCC package

over the commercial temperature range of 0

°C to

+70

°C.

–

+

DAC H

DAC

LATCH H

INPUT

LATCH H

–

+

DAC G

DAC

LATCH G

INPUT

LATCH G

+

DAC F

DAC

LATCH F

INPUT

LATCH F

+

DAC E

DAC

LATCH E

INPUT

LATCH E

+

DAC D

DAC

LATCH D

INPUT

LATCH D

+

DAC C

DAC

LATCH C

INPUT

LATCH C

+

DAC B

DAC

LATCH B

INPUT

LATCH B

–

+

DAC A

DAC

LATCH A

INPUT

LATCH A

D12–D0

CS

WR

A0–A2

LDAB

LDCD

LDEF

LDGH

CLR

VSS GND

VOUTA

AGNDAB

VOUTB

VOUTC

AGNDCD

VOUTD

VOUTE

AGNDEF

VOUTF

VOUTG

AGNDGH

VOUTH

REFAB

REFCD

REFEF REFGH

VDD

CONTROL

LOGIC

DATA BUS

–

BLOCK DIAGRAM

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SPT5400 Datasheet(PDF) 1 Page - Cadeka Microcircuits LLC.

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