DAC8564 datasheet(1/46 Pages) TI

Il numero della parte	DAC8564

Spiegazioni elettronici	12-Bit, Quad Channel, Ultra-Low Glitch, Voltage Output DIGITAL-TO-ANALOG CONVERTER with 2.5V, 2ppm/째C Internal Reference

PDF	46 Pages

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Produttore elettronici	TI [Texas Instruments]

Homepage	http://www.ti.com

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DAC7565

1

FEATURES

DESCRIPTION

APPLICATIONS

24-BitShiftRegister

SYNC

SCLK

D

IN

DataBufferA

DACRegisterA

DataBufferB

DACRegisterB

DataBufferC

DACRegisterC

DataBufferD

DACRegisterD

AV

DD

Buffer

Control

Register

Control

ControlLogic

2.5V

Reference

Power-Down

ControlLogic

12-BitDAC

V

A

OUT

V

B

OUT

V

C

OUT

V

D

OUT

GND

LDAC

ENABLE

RSTSEL

RST

DAC7565

V

REF

H/V

OUT

IOV

DD

V

REFL

DAC7565

www.ti.com ............................................................................................................................................... SBAS412A – FEBRUARY 2008 – REVISED MARCH 2008

12-Bit, Quad Channel, Ultra-Low Glitch, Voltage Output

DIGITAL-TO-ANALOG CONVERTER with 2.5V, 2ppm/

°C Internal Reference

234

• Relative Accuracy: 0.5LSB

The

DAC7565

is

a

low-power,

voltage-output,

four-channel, 12-bit digital-to-analog converter (DAC).

• Glitch Energy: 0.15nV-s

The

device

includes

a

2.5V,

2ppm/

°C internal

• Internal Reference:

reference (enabled by default), giving a full-scale

–

2.5V Reference Voltage (enabled by default)

output voltage range of 2.5V. The internal reference

–

0.004% Initial Accuracy (typ)

has an initial accuracy of 0.02% and can source up to

20mA at the VREFH/VREFOUT pin. The device is

–

2ppm/

°C Temperature Drift (typ)

monotonic,

provides

very

good

linearity,

and

–

5ppm/

°C Temperature Drift (max)

minimizes undesired code-to-code transient voltages

–

20mA Sink/Source Capability

(glitch). The DAC7565 uses a versatile 3-wire serial

interface that operates at clock rates up to 50MHz.

• Power-On Reset to Zero-Scale or Mid-Scale

The interface is compatible with standard SPI™,

• Asynchronous Clear to Zero-Scale or

QSPI™, Microwire™, and digital signal processor

Mid-Scale

(DSP) interfaces.

• Ultra-Low Power Operation: 1mA at 5V

The DAC7565 incorporates a power-on-reset circuit

• Wide Power-Supply Range: +2.7V to +5.5V

that ensures the DAC output powers up at either

zero-scale or mid-scale until a valid code is written to

• 12-Bit Monotonic Over Temperature Range

the device. The device contains a power-down

• Settling Time: 10µs to ±0.024% Full-Scale

feature, accessed over the serial interface, that

Range (FSR)

reduces the current consumption of the device to

• Low-Power Serial Interface with

1.3

µA at 5V. Power consumption is 2.9mW at 3V,

Schmitt-Triggered Inputs: Up to 50MHz

reducing to 1.5

µW in power-down mode. The low

power consumption, internal reference, and small

• On-Chip Output Buffer Amplifier with

footprint

make

this

device

ideal

for

portable,

Rail-to-Rail Operation

battery-operated equipment.

• 1.8V to 5.5V Logic Compatibility

The DAC7565 is drop-in and functionally compatible

• Temperature Range: –40°C to +105°C

with the DAC8165 and DAC8565, and functionally

compatible

with

the

DAC7564,

DAC8164

and

DAC8564. All these devices are available in a

• Portable Instrumentation

TSSOP-16 package.

• Closed-Loop Servo-Control

• Process Control, PLCs

• Data Acquisition Systems

• Programmable Attenuation

• PC Peripherals

16-BIT

14-BIT

12-BIT

Pin and

Functionally

DAC8565

DAC8165

DAC7565

Compatible

Functionally

DAC8564

DAC8164

DAC7564

Compatible

1

Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of

Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.

2

SPI, QSPI are trademarks of Motorola, Inc.

3

Microwire is a trademark of National Semiconductor.

4

All other trademarks are the property of their respective owners.

PRODUCTION DATA information is current as of publication date.

Products conform to specifications per the terms of the Texas

Instruments standard warranty. Production processing does not

necessarily include testing of all parameters.

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Texas Instruments	DAC8564	1Mb / 46P	16-Bit, Quad Channel, Ultra-Low Glitch, Voltage Output DIGITAL-TO-ANALOG CONVERTER with 2.5V, 2ppm/째C Internal Reference
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