參數(shù)資料
型號: LTC1458L
廠商: Linear Technology Corporation
英文描述: Dual General Purpose LinCMOS(TM) Differential Comparator 8-PDIP 0 to 70
中文描述: 四路12位軌至軌微數(shù)模轉(zhuǎn)換器
文件頁數(shù): 1/12頁
文件大?。?/td> 248K
代理商: LTC1458L
1
LTC1458/LTC1458L
Quad 12-Bit Rail-to-Rail
Micropower DACs
DESCRIPTIO
N
U
The LTC
1458/LTC1458L are complete single supply,
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
×
2) and an easy-to-use 3-wire cascadable serial interface.
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
CC
= 1.1mA typ).
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.
Functional Block Diagram: Quad 12-Bit Rail-to-Rail DAC
FEATURES
TYPICAL APPLICATIO
N
U
I
12-Bit Resolution
I
Buffered True Rail-to-Rail Voltage Output
I
5V Operation, I
CC
: 1.1mA Typ (LTC1458)
I
3V Operation, I
CC
: 800
μ
A Typ (LTC1458L)
I
Built-In Reference: 2.048V (LTC1458)
1.220V (LTC1458L)
I
CLR Pin
I
Power-On Reset
I
SSOP-28 Package
I
3-Wire Cascadable Serial Interface
I
Maximum DNL Error: 0.5LSB
I
Low Cost
Differential Nonlinearity
vs Input Code
I
Digital Calibration
I
Industrial Process Control
I
Automatic Test Equipment
I
Low Power Systems
APPLICATIO
S
U
1458 BD01
48-BIT
SHIFT REGISTER
AND
DAC REGISTER
CLK
D
IN
5V (LTC1458)
3V TO 5V (LTC1458L)
2.048V (LTC1458)
1.22V (LTC1458L)
REFHI C
REFOUT
V
OUT C
V
CC
REFLO C
X1/X2 C
X1/X2 D
X1/X2 A
X1/X2 B
REFHI D
V
OUT D
REFLO D
REFHI B
FROM
μ
P
V
OUT B
REFLO B
REFHI A
V
OUT A
REFLO A
D
OUT
CS/LD
CLR
DAC D
DAC C
DAC B
DAC A
CODE
0
D
0.5
0.4
0.3
0.2
0.1
0
–0.1
–0.2
–0.3
–0.4
–0.5
1024
2048 2560
1458 G09
512
1536
3072 3584 4095
, LTC and LT are registered trademarks of Linear Technology Corporation.
相關(guān)PDF資料
PDF描述
LTC1458LC Quad 12-Bit Rail-to-Rail Micropower DACs
LTC1458LCG Dual General Purpose LinCMOS(TM) Differential Comparator 8-SO 0 to 70
LTC1458LCSW Dual General Purpose LinCMOS(TM) Differential Comparator 8-SO 0 to 70
LTC1458LI Dual General Purpose LinCMOS(TM) Differential Comparator 8-TSSOP 0 to 70
LTC1473 Dual Power Management Switch Driver(雙電源管理開關(guān)驅(qū)動器)
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