LTC2635-HZ12 datasheet, PDF - EEWORLD Datasheet

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LTC2635-HZ12: DescriptionQuad 12-/10-/8-Bit I2C VOUT DACs with 10ppm/Â°C Reference; File Size511KB，32 Pages; ManufacturerLinear ( ADI ); Websitehttp://www.analog.com/cn/index.html

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LTC2635-HZ12 Overview

Quad 12-/10-/8-Bit I2C VOUT DACs with 10ppm/Â°C Reference

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LTC2635

Quad 12-/10-/8-Bit I

C V

OUT

DACs with 10ppm/°C Reference

Features

Description

The LTC

2635 is a family of quad 12-, 10-, and 8-bit

voltage-output DACs with an integrated, high-accuracy,

low-drift reference in a 16-pin QFN or a 10-lead MSOP

package. It has rail-to-rail output buffers and is guaran-

teed monotonic. The LTC2635-L has a full-scale output

of 2.5V, and operates from a single 2.7V to 5.5V supply.

The LTC2635-H has a full-scale output of 4.096V, and

operates from a 4.5V to 5.5V supply. Each DAC can also

operate with an external reference, which sets the full-

scale output to the external reference voltage.

These DACs communicate via a 2-wire I

C-compatible

serial interface. The LTC2635 operates in both the standard

mode (clock rate of 100kHz) and the fast mode (clock rate

of 400kHz). The LTC2635 incorporates a power-on reset

circuit. Options are available for reset to zero-scale, reset

to mid-scale in internal reference mode, reset to mid-scale

in external reference mode, or reset with all DAC outputs

in a high-impedance state after power-up.

LT, LTC, LTM, Linear Technology and the Linear logo are registered trademarks and

ThinSOT is a trademark of Linear Technology Corporation. All other trademarks are the property

of their respective owners. Protected by U.S. Patents, including 5396245, 5859606, 6891433,

6937178, 7414561.

Integrated Precision Reference

2.5V Full-Scale 10ppm/°C (LTC2635-L)

4.096V Full-Scale 10ppm/°C (LTC2635-H)

Maximum INL Error: ±2.5 LSB (LTC2635-12)

Power-On-Reset to Zero-Scale/Mid-Scale/Hi-Z

Low Noise: 0.75mV

P-P

0.1Hz to 200kHz

Guaranteed Monotonic Over –40°C to 125°C

Automotive Temperature Range

Selectable Internal or External Reference

2.7V to 5.5V Supply Range (LTC2635-L)

Ultralow Crosstalk Between DACs (3nV•s)

Low Power: 0.6mA at 3V

Double-Buffered Data Latches

Small 16-Pin 3mm × 3mm QFN and 10-Lead MSOP

Packages

applications

Mobile Communications

Process Control and Industrial Automation

Power Supply Margining

Portable Equipment

Automotive

Block Diagram

GND

INTERNAL

REFERENCE

SWITCH

REF

(REFLO)

OUTA

OUTD

REF

Integral Nonlinerity

= 3V

INTERNAL REF

INL (LSB)

DAC A

DAC D

REF

OUTB

DAC B

DAC C

REF

OUTC

–1

(LDAC)

DECODE

CA0

(CA1)

(CA2)

ADDRESS

DECODE

POWER-ON

RESET

SCL

–2

1024

2048

CODE

3072

4095

2635 TA01

C INTERFACE

SDA

( ) QFN PACKAGE ONLY

2635 BD

2635fb

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