LTC2630-HZ8 데이터 시트보기 (PDF) - Linear Technology

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LTC2630-HZ8

Single 12-/10-/8-Bit Rail-to-Rail DACs with Integrated Reference in SC70

Linear Technology 

FEATURES

■ Integrated Precision Reference

2.5V Full Scale 10ppm/°C (LTC2630-L)

4.096V Full Scale 10ppm/°C (LTC2630-H)

■ Maximum INL Error: 1 LSB (LTC2630A-12)

■ Low Noise: 0.7mVP-P, 0.1Hz to 200kHz

■ Guaranteed Monotonic over Temperature

■ Selectable Internal Reference or Supply as Reference

■ 2.7V to 5.5V Supply Range (LTC2630-L)

■ Low Power Operation: 180µA at 3V

■ Power Down to 1.5µA Maximum (C and I Grades)

■ Power-on Reset to Zero or Midscale Options

■ SPI Serial Interface

■ Double-Buffered Data Latches

■ Tiny 6-Lead SC70 Package

APPLICATIONS

■ Mobile Communications

■ Process Control and Industrial Automation

■ Automatic Test Equipment

■ Portable Equipment

■ Automotive

LTC2630

Single 12-/10-/8-Bit Rail-to-

Rail DACs with Integrated

Reference in SC70

DESCRIPTION

The LTC®2630 is a family of 12-, 10-, and 8-bit voltage-

output DACs with an integrated, high-accuracy, low-drift

reference in a 6-lead SC70 package. It has a rail-to-rail

output buffer and is guaranteed monotonic.

The LTC2630-L has a full-scale output of 2.5V, and

operates from a single 2.7V to 5.5V supply. The

LTC2630-H has a full-scale output of 4.096V, and operates

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

supply as reference mode, which sets the full-scale output

to the supply voltage.

The parts use a simple SPI/MICROWIRE™ compatible

3-wire serial interface which operates at clock rates up

to 50MHz.

The LTC2630 incorporates a power-on reset circuit. Op-

tions are available for reset to zero or reset to midscale

after power-up.

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

All other trademarks are the property of their respective owners. Protected by U.S. Patents

including 5396245, 5859606, 6891433 and 6937178.

TYPICAL APPLICATION

SDI

SCK 24-BIT

SHIFT

REGISTER

INTERNAL

REFERENCE

CONTROL

DECODE LOGIC

CS/LD

INPUT

REGISTER

DAC

REGISTER

VCC

RESISTOR

DIVIDER

DACREF

DAC

VOUT

GND

2630 BD

Integral Nonlinearity (LTC2630A-LZ12)

1.0

VCC = 3V

VFS = 2.5V

0.5

0

–0.5

–1.0

0

1024

2048

CODE

3072

4095

2630 TA03

2630f

1

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