LTC2655IUF-L12#TRPBF datasheet, PDF

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LTC2655IUF-L12#TRPBF: DescriptionDAC 4-CH 12-bit Automotive 20-Pin PQFN EP T/R; File Size364KB，28 Pages; ManufacturerADI; Websitehttps://www.analog.com

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LTC2655IUF-L12#TRPBF Overview

DAC 4-CH 12-bit Automotive 20-Pin PQFN EP T/R

LTC2655IUF-L12#TRPBF Parametric

Parameter Name	Attribute value
EU restricts the use of certain hazardous substances	Compliant
ECCN (US)	EAR99
Part Status	Active
Converter Type	General Purpose
Resolution	12bit
Number of DAC Channels	4
Number of Outputs per Chip	4
Maximum Settling Time (us)	3.9(Typ)
Digital Interface Type	Serial (2-Wire, I2C)
Output Type	Voltage
Output Polarity	Unipolar
Voltage Reference	External\|Internal
Minimum Single Supply Voltage (V)	2.7
Typical Single Supply Voltage (V)	5\|3.3
Maximum Single Supply Voltage (V)	5.5
Power Supply Type	Single
Maximum Power Dissipation (mW)	5.1(Typ)
Integral Nonlinearity Error	±1LSB
Full Scale Error	±0.1%FSR
Digital Supply Support	No
Minimum Operating Temperature (°C)	-40
Maximum Operating Temperature (°C)	85
Packaging	Tape and Reel
Supplier Temperature Grade	Industrial
Pin Count	20
Standard Package Name	QFN
Supplier Package	PQFN EP
Mounting	Surface Mount
Package Height	0.75(Max)
Package Length	4
Package Width	4
PCB changed	20
Lead Shape	No Lead

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FEATURES

LTC2655

Quad I

C 16-/12-Bit

Rail-to-Rail DACs with

10ppm/°C Max Reference

DESCRIPTION

The LTC

2655 is a family of Quad I

C 16-/12-Bit Rail-to-

Rail DACs with integrated 10ppm/°C max reference. The

DACs have built-in high performance, rail-to-rail, output

buffers and are guaranteed monotonic. The LTC2655-L

has a full-scale output of 2.5V with the integrated refer-

ence and operates from a single 2.7V to 5.5V supply.

The LTC2655-H has a full-scale output of 4.096V with

the integrated reference 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 2 times the

external reference voltage.

The parts use the 2-wire I

C compatible serial interface.

The LTC2655 operates in both the standard mode (maxi-

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

clock rate of 400kHz). The LTC2655 incorporates a

power-on reset circuit that is controlled by the PORSEL

pin. If PORSEL is tied to GND the DACs power-on reset to

zero-scale. If PORSEL is tied to V

, the DACs power-on

reset to mid-scale.

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

Technology Corporation. All other trademarks are the property of their respective owners.

Protected by U.S. Patents including 5396245, 6891433 and 7671770.

Integrated Reference 10ppm/°C Max

Maximum INL Error: ±4LSB at 16 Bits

Guaranteed Monotonic Over Temperature

Selectable Internal or External Reference

2.7V to 5.5V Supply Range (LTC2655-L)

Integrated Reference Buffers

Ultralow Crosstalk Between DACs (<1nV•s)

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

Asynchronous DAC Update Pin

Tiny 20-Lead 4mm

4mm QFN and

16-Lead Narrow SSOP packages

APPLICATIONS

Mobile Communications

Process Control and Industrial Automation

Instrumentation

Automatic Test Equipment

Automotive

BLOCK DIAGRAM

REFCOMP

GND

REFLO

OUTA

DAC A

DAC D

OUTD

INL (LSB)

INTERNAL REFERENCE

REFIN/OUT

INL Curve

–1

DAC C

OUTC

–2

–3

POWER-ON

RESET

PORSEL

–4

128

16384

32768

CODE

49152

65535

2655 TA01b

= 5V

OUTB

CA0

CA1

DAC B

32-BIT SHIFT REGISTER

CA2

SCL

LDAC

2-WIRE INTERFACE

SDA

2655 BD

2655f

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