LTC1458ISW Linear Technology, LTC1458ISW Datasheet

IC D/A CONV 12BIT R-R QUAD28SOIC

LTC1458ISW

Manufacturer Part Number
LTC1458ISW
Description
IC D/A CONV 12BIT R-R QUAD28SOIC
Manufacturer
Linear Technology
Datasheet

Specifications of LTC1458ISW

Settling Time
14µs
Number Of Bits
12
Data Interface
Serial
Number Of Converters
4
Voltage Supply Source
Single Supply
Power Dissipation (max)
5.5mW
Operating Temperature
-40°C ~ 85°C
Mounting Type
Surface Mount
Package / Case
28-SOIC (7.5mm Width)
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant

Available stocks

Company
Part Number
Manufacturer
Quantity
Price
Part Number:
LTC1458ISW
Manufacturer:
LINEAR/凌特
Quantity:
20 000
FEATURES
TYPICAL APPLICATIO
APPLICATIO S
Digital Calibration
Industrial Process Control
Automatic Test Equipment
Low Power Systems
Quad 12-Bit DAC
Buffered True Rail-to-Rail Voltage Output
Maximum DNL Error: 0.5LSB
5V Operation, I
3V Operation, I
Internal or External Reference Operation
Settling Time: 14 s to 0.5LSB
Schmitt Trigger On Clock Input Allows Direct
Optocoupler Interface
Power-On Reset and CLR Pin
SSOP-28 Package
3-Wire Cascadable Serial Interface with 250kHz
Update Rate
Low Cost
REFHI D
V
REFLO C
V
X1/X2 D
REFLO D
REFHI C
X1/X2 C
OUT C
OUT D
Functional Block Diagram: Quad 12-Bit Rail-to-Rail DAC
2.048V (LTC1458)
1.22V (LTC1458L)
CC
CC
U
DAC D
DAC C
: 1.1mA Typ (LTC1458)
: 800 A Typ (LTC1458L)
Daisy-Chained Control Outputs
REFOUT
SHIFT REGISTER
DAC REGISTER
CS/LD
U
CLR
FROM P
48-BIT
AND
CLK
D
OUT
D
IN
3V TO 5V (LTC1458L)
5V (LTC1458)
DAC B
DAC A
V
CC
DESCRIPTIO
The LTC
quad rail-to-rail voltage output, 12-bit digital-to-analog
converters (DACs) in SO-28 and SSOP-28 packages. They
include an output buffer amplifier with variable gain ( 1 or
The LTC1458 has an onboard reference of 2.048V and a
full-scale output of 4.095V in a 2 gain configuration. It
operates from a single 4.5V to 5.5V supply dissipating
only 5.5mW (I
The LTC1458L has an onboard 1.22V reference and a full-
scale output of 2.5V in a 2 gain configuration. It operates
from a single supply of 2.7V to 5.5V dissipating 2.4mW.
Excellent DNL, low supply current and a wide range of
built-in functions allow these parts to be used in a host of
applications when flexibility, power and single supply
operation are important.
2) and an easy-to-use 3-wire cascadable serial interface.
, LTC and LT are registered trademarks of Linear Technology Corporation.
REFLO A
REFLO B
REFHI B
X1/X2 B
REFHI A
X1/X2 A
V
V
OUT B
OUT A
1458 BD01
Quad 12-Bit Rail-to-Rail
®
1458/LTC1458L are complete single supply,
CC
= 1.1mA typ).
Micropower DACs
U
–0.1
–0.2
–0.3
–0.4
–0.5
0.5
0.4
0.3
0.2
0.1
LTC1458/LTC1458L
0
0
512
Differential Nonlinearity
1024
vs Input Code
1536
CODE
2048 2560
3072 3584 4095
1458 G09
1

Related parts for LTC1458ISW

LTC1458ISW Summary of contents

Page 1

... Excellent DNL, low supply current and a wide range of built-in functions allow these parts to be used in a host of applications when flexibility, power and single supply operation are important. , LTC and LT are registered trademarks of Linear Technology Corporation. FROM P 5V (LTC1458 (LTC1458L) D ...

Page 2

... V OUT CLR LTC1458CG 5 24 REFHI B LTC1458CSW 6 23 GND LTC1458LCG 7 22 REFLO REFLO A LTC1458LCSW 9 20 REFHI A LTC1458IG 19 REFOUT LTC1458ISW 18 NC LTC1458LIG 17 V OUT A 16 X1/X2 A LTC1458LISW PACKAGE 28-LEAD PLASTIC SO = 125 C, = 100 C/W (G) JMAX JA = 125 C, = 150 C/W (SW) JMAX JA MIN TYP MAX 12 0.5 1 ...

Page 3

ELECTRICAL CHARACTERISTICS temperature range, otherwise specifications are at T X1/X2 = REFLO = GND, REFHI = REFOUT, V SYMBOL PARAMETER CONDITIONS Reference Input Capacitance Short-Circuit Current REFOUT Shorted to GND Power Supply V Positive Supply Voltage For Specified Performance, LTC1458 ...

Page 4

LTC1458/LTC1458L ELECTRICAL CHARACTERISTICS Note 1: Absolute Maximum Ratings are those values beyond which the life of a device may be impaired. Note 2: Nonlinearity is defined from the first code that is greater than or equal to the maximum offset ...

Page 5

W U TYPICAL PERFOR A CE CHARACTERISTICS LTC1458 Full-Scale Voltage vs Temperature 4.110 4.105 4.100 4.095 4.090 4.085 4.080 – –25 TEMPERATURE ( C) 1458 G06 CTIO S X1/X2 C, X1/X2 ...

Page 6

LTC1458/LTC1458L W BLOCK DIAGRA X1/ DAC C OUT C 3 CS/ REFHI C 5 GND 6 REFLO REFLO D REFHI OUT CLK ...

Page 7

DIAGRA t 9 CLK B0 D B11 PREVIOUS WORD MSB CS/LD B11 A D OUT PREVIOUS WORD U U DEFI ITIO S Resolution (n): Resolution is defined as the number of ...

Page 8

LTC1458/LTC1458L U U DEFI ITIO S Differential Nonlinearity (DNL): DNL is the difference between the measured change and the ideal 1LSB change between any two adjacent codes. The DNL error between any two codes is calculated as follows: DNL = ...

Page 9

U U APPLICATIO S I FOR ATIO Using Two DACs to Digitally Program the Full Scale and Offset of a Third Figure 2 shows how to use one LTC1458 to make a 12-bit DAC with a digitally programmable full scale ...

Page 10

LTC1458/LTC1458L PACKAGE DESCRIPTION 5.20 – 5.38** (0.205 – 0.212) 0.13 – 0.22 0.55 – 0.95 (0.005 – 0.009) (0.022 – 0.037) NOTE: DIMENSIONS ARE IN MILLIMETERS * DIMENSIONS DO NOT INCLUDE MOLD FLASH. MOLD FLASH SHALL NOT EXCEED 0.152mm (0.006") ...

Page 11

... DIMENSION DOES NOT INCLUDE INTERLEAD FLASH. INTERLEAD FLASH SHALL NOT EXCEED 0.010" (0.254mm) PER SIDE Information furnished by Linear Technology Corporation is believed to be accurate and reliable. However, no responsibility is assumed for its use. Linear Technology Corporation makes no represen- tation that the interconnection of its circuits as described herein will not infringe on existing patent rights. ...

Page 12

... OUT V = 2.7V to 5.5V Micropower, Rail-to-Rail Output CC 1 per DAC, 2.7V to 5.5V Supply Range CC Pin Compatible with the LTC1660, 2.7V to 5.5V Supply Range V = 2.7V to 5.5V, Micropower, Rail-to-Rail Output CC 14588lfa LT/LCG 0700 2K REV A • PRINTED IN USA LINEAR TECHNOLOGY CORPORATION 1996 ...

Related keywords