LTC1454LCS#TR Linear Technology, LTC1454LCS#TR Datasheet

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LTC1454LCS#TR

Manufacturer Part Number
LTC1454LCS#TR
Description
IC DAC 12BIT R-R DUAL 3V 16SOIC
Manufacturer
Linear Technology
Datasheet

Specifications of LTC1454LCS#TR

Settling Time
14µs
Number Of Bits
12
Data Interface
Serial
Number Of Converters
2
Voltage Supply Source
Single Supply
Power Dissipation (max)
1.35mW
Operating Temperature
0°C ~ 70°C
Mounting Type
Surface Mount
Package / Case
16-SOIC (3.9mm Width)
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant

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Quantity
Price
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Part Number:
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Part Number:
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Manufacturer:
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APPLICATIONS
FEATURES
TYPICAL
LTC1454L: 3V TO 5V
Digital Calibration
Industrial Process Control
Automatic Test Equipment
Cellular Telephones
12-Bit Resolution
Buffered True Rail-to-Rail Voltage Output
5V Operation, I
3V Operation, I
Built-In Reference: 2.048V (LTC1454)
CLR Pin
Power-On Reset
16-Lead SO Package
3-Wire Cascadable Serial Interface
Maximum DNL Error: 0.5LSB
Low Cost
P
LTC1454: 5V
4
3
5
6
D
CS/LD
CLK
D
OUT
IN
Functional Block Diagram: Dual 12-Bit Rail-to-Rail DAC
APPLICATION
POWER-ON
24-BIT
LATCH
RESET
SHIFT
V
AND
REG
DAC
CC
CC
CC
9, 15
CLR
2
U
: 700 A Typ (LTC1454)
: 450 A Typ (LTC1454L)
Daisy-Chained Control Outputs
1.220V (LTC1454L)
10
REFOUT
LTC1454: 2.048V
LTC1454L: 1.22V
12-BIT
DAC B
12-BIT
DAC A
12
U
REFLO
+
+
GND
13
X1/X2 A
REFHI B
REFHI A
X1/X2 B
V
V
OUT A
The LTC
dual rail-to-rail voltage output, 12-bit digital-to-analog
converters (DACs) in a 16-lead SO package. They include
an output buffer amplifier with variable gain ( 1 or 2)
and an easy-to-use 3-wire cascadable serial interface.
The LTC1454 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.
The LTC1454L has an onboard 1.22V reference and a full-
scale output of 2.5V in a 2 gain configuration. It operates
from a single 2.7V to 5.5V supply.
Low power supply current, excellent DNL and small size
allow these parts to be used in a host of applications where
size, DNL and single supply operation are important.
DESCRIPTION
OUT B
, LTC and LT are registered trademarks of Linear Technology Corporation.
14
16
1
8
7
11
1454 BD02
®
1454/LTC1454L are complete single supply,
Dual 12-Bit Rail-to-Rail
Micropower DACs
–0.1
–0.2
–0.3
–0.4
–0.5
0.5
0.4
0.3
0.2
0.1
U
0
0
LTC1454/LTC1454L
512
Differential Nonlinearity
1024
vs Input Code
1536
CODE
2048 2560
3072 3584 4095
1454 G08
1

Related parts for LTC1454LCS#TR

LTC1454LCS#TR Summary of contents

Page 1

... It operates from a single 2.7V to 5.5V supply. Low power supply current, excellent DNL and small size allow these parts to be used in a host of applications where size, DNL and single supply operation are important. , LTC and LT are registered trademarks of Linear Technology Corporation. REFHI ...

Page 2

LTC1454/LTC1454L ABSOLUTE MAXIMUM V to GND .............................................. – 0.5V to 7.5V CC Logic Inputs to GND ................................ – 0. X1/ OUT A OUT B X1/X2 B ..................................... – 0.5V ...

Page 3

ELECTRICAL CHARACTERISTICS V = 4.5V to 5.5V (LTC1454), 2.7V to 5.5V (LTC1454L), X1/X2 = REFLO = GND, REFHI = REFOUT unless otherwise noted. A MIN MAX SYMBOL PARAMETER CONDITIONS Power Supply V ...

Page 4

LTC1454/LTC1454L W U TYPICAL PERFORMANCE CHARACTERISTICS LTC1454 Differential Nonlinearity 0.5 0.4 0.3 0.2 0.1 0 –0.1 –0.2 –0.3 –0.4 –0.5 0 2048 2560 3072 3584 4095 512 1024 1536 CODE 1454 G08 LTC1454 Minimum Output Voltage vs Output Sink Current ...

Page 5

PIN FUNCTIONS X1/X2 B, X1/X2 A (Pins 1, 7): For LTC1454, when this pin is grounded, the gain will be 2. When connected to V the gain will gain of 2 configuration, the ...

Page 6

LTC1454/LTC1454L AGRA BLOCK X1/ CLR 2 3 CLK CS/LD 5 24-BIT SHIFT REGISTER D 6 OUT POWER-ON X1/ RESET V 8 OUT DIAGRA ...

Page 7

U U DEFI ITIO S Resolution (n): Resolution is defined as the number of digital input bits defines the number of DAC output n states (2 ) that divide the full-scale range. The resolution does not imply linearity. ...

Page 8

LTC1454/LTC1454L U OPERATIO Serial Interface The data on the D input is loaded into the shift register IN on the rising edge of the clock. Data is loaded as one 24-bit word, DAC A first, then DAC B. The MSB ...

Page 9

U U APPLICATIONS INFORMATION A Single Supply, 4-Quadrant Multiplying DAC The LTC1454 can also be used for 4-quadrant multiplying with an offset signal ground of 1.22V. This application is shown in Figure 2. The inputs are connected to REFHI B ...

Page 10

LTC1454/LTC1454L PACKAGE DESCRIPTION 0.300 – 0.325 (7.620 – 8.255) 0.009 – 0.015 (0.229 – 0.381) +0.025 0.325 –0.015 +0.635 8.255 –0.381 *THESE DIMENSIONS DO NOT INCLUDE MOLD FLASH OR PROTRUSIONS. MOLD FLASH OR PROTRUSIONS SHALL NOT EXCEED 0.010 INCH (0.254mm) ...

Page 11

... 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

... Buffer Amplifier in SO-8 Package 3V, Low Power, Complete V DAC in SO-8 Package OUT Low Power, Complete V DAC in SO-8 Package, with OUT Clear Pin LTC1458 4.5V to 5.5V 4.095V CC OUT LTC1458L 2.7V to 5.5V 2.5V CC OUT sn1454 1454lfs LT/TP 0397 7K • PRINTED IN LINEAR TECHNOLOGY CORPORATION 1996 USA ...

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