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PDF LTC1453CS8 Data sheet ( Hoja de datos )
| Número de pieza | LTC1453CS8 | |
| Descripción | 12-Bit Rail-to-Rail Micropower DACs in SO-8 | |
| Fabricantes | Linear Technology | |
| Logotipo |  |
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LTC1451
LTC1452/LTC1453
12-Bit Rail-to-Rail
Micropower DACs in SO-8
FEATURES
s 12-Bit Resolution
s Buffered True Rail-to-Rail Voltage Output
s 3V Operation (LTC1453), ICC: 250µA Typ
s 5V Operation (LTC1451), ICC: 400µA Typ
s 3V to 5V Operation (LTC1452), ICC: 225µA Typ
s Built-In Reference: 2.048V (LTC1451)
1.220V (LTC1453)
s Multiplying Version (LTC1452)
s Power-On Reset
s SO-8 Package
s 3-Wire Cascadable Serial Interface
s Maximum DNL Error: 0.5LSB
s Schmitt Trigger on Clock Input Allows Direct
Optocoupler Interface
U
APPLICATIO S
s Digital Calibration
s Industrial Process Control
s Automatic Test Equipment
s Cellular Telephones
DESCRIPTIO
The LTC®1451/LTC1452/LTC1453 are complete single
supply, rail-to-rail voltage output 12-bit digital-to-analog
converters (DACs) in an SO-8 package. They include an
output buffer amplifier and an easy-to-use 3-wire
cascadable serial interface.
The LTC1451 has an onboard reference of 2.048V and a
full-scale output of 4.095V. It operates from a single 4.5V
to 5.5V supply.
The LTC1452 is a multiplying DAC with a full-scale output
of twice the reference input voltage. It operates from a
single supply of 2.7V to 5.5V.
The LTC1453 has an onboard 1.22V reference and a full-
scale output of 2.5V. It operates from a single supply of
2.7V to 5.5V.
The low power supply current makes the LTC1451 family
ideal for battery-powered applications. The space saving
8-pin SO package and operation with no external compo-
nents provide the smallest 12-bit DAC system available.
, LTC and LT are registered trademarks of Linear Technology Corporation.
TYPICAL APPLICATIO
Daisy-Chained Control Outputs
5V
DIN VCC
0.1µF
µP
CLK
LTC1451
CS/LD
VOUT
CONTROL
OUTPUT 1
DOUT VREF GND
DIN VCC
CLK
LTC1451
CS/LD
VOUT
DOUT VREF GND
TO NEXT DAC
0.1µF
CONTROL
OUTPUT 2
1451/2/3 TA01
Differential Nonlinearity
vs Input Code
0.5
0.0
–0.5
0 512 1024 1536 2048 2560 3072 3584 4095
CODE
1451/2/3 TA02
1
1 page  
LTC1451
LTC1452/LTC1453
TYPICAL PERFOR A CE CHARACTERISTICS
LTC1451
Supply Current vs Logic Input
Voltage
1.15
ALL DIGITAL INPUTS
1.05 TIED TOGETHER
0.95
0.85
0.75
0.65
0.55
0.45
0.35
0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0
LOGIC INPUT VOLTAGE (V)
1451/2/3 G04
LTC1451
Output Swing vs Load Resistance
4.5
4.0 FULL SCALE
3.5 RL TIED TO GND
3.0
2.5
VCC = 5V
2.0
1.5
1.0
0.5
0
10
ZERO SCALE
RL TIED TO VCC
100 1k
LOAD RESISTANCE (Ω)
10k
1451/2/3 G05
LTC1451
Pull-Down Voltage vs Output Sink
Current Capability
1000
125°C
100
25°C
10
–55°C
1
0.1
0.0001 0.001 0.01 0.1 1 10
OUTPUT SINK CURRENT (mA)
100
1451/2/3 G06
LTC1451
Offset Voltage vs Temperature
900
800
700
600
500
400
300
–55 –25
5
35 65
TEMPERATURE (°C)
95 125
1451/2/3 G07
LTC1451
Differential Nonlinearity (DNL)
0.5
0.0
–0.5
0 512 1024 1536 2048 2560 3072 3584 4095
CODE
1451/2/3 TA02
LTC1451
Integral Nonlinearity (INL)
2.0
1.6
1.2
0.8
0.4
0
–0.4
–0.8
–1.2 VCC = 5V
INTERNAL REFERENCE
–1.6 TA = 25°C
–2.0
0 512 1024 1536 2048 2560 3072 3584 4095
CODE
1451/2/3 G09
LTC1452
Total Harmonic Distortion + Noise
vs Frequency
–40
VCC = 5V
–50
VIN = 2VP-P
VOUT = 4VP-P
–60
–70
LTC1451
Broadband Output Noise
0.2LSB/DIV
–80
–90
–100
50 100
1k 10k
FREQUENCY (Hz)
100k
1451/2/3 G08
5ms/ DIV
CODE = FFFH
BW = 3Hz TO 1.4MHz
GAIN = 1000
1451/2/3 G10
5
5 Page 
LTC1451
LTC1452/LTC1453
PACKAGE DESCRIPTIO
Dimensions in inches (millimeters) unless otherwise noted.
N8 Package
8-Lead PDIP (Narrow 0.300)
(LTC DWG # 05-08-1510)
0.400*
(10.160)
MAX
87
6
5
0.255 ± 0.015*
(6.477 ± 0.381)
0.300 – 0.325
(7.620 – 8.255)
12
0.045 – 0.065
(1.143 – 1.651)
34
0.130 ± 0.005
(3.302 ± 0.127)
0.009 – 0.015
(0.229 – 0.381)
0.065
(1.651)
TYP
+0.035
0.325 –0.015
( )8.255
+0.889
–0.381
0.100
(2.54)
BSC
*THESE DIMENSIONS DO NOT INCLUDE MOLD FLASH OR PROTRUSIONS.
MOLD FLASH OR PROTRUSIONS SHALL NOT EXCEED 0.010 INCH (0.254mm)
0.125
(3.175)
MIN
0.018 ± 0.003
(0.457 ± 0.076)
0.020
(0.508)
MIN
N8 1098
S8 Package
8-Lead Plastic Small Outline (Narrow 0.150)
(LTC DWG # 05-08-1610)
0.189 – 0.197*
(4.801 – 5.004)
8 765
0.228 – 0.244
(5.791 – 6.197)
0.150 – 0.157**
(3.810 – 3.988)
12
0.010
(0.254
–
–
0.020
0.508)
×
45°
0.008 – 0.010
(0.203 – 0.254)
0.053 – 0.069
(1.346 – 1.752)
0°– 8° TYP
0.016 – 0.050
(0.406 – 1.270)
0.014 – 0.019
(0.355 – 0.483)
TYP
*DIMENSION DOES NOT INCLUDE MOLD FLASH. MOLD FLASH
SHALL NOT EXCEED 0.006" (0.152mm) PER SIDE
**DIMENSION DOES NOT INCLUDE INTERLEAD FLASH. INTERLEAD
FLASH SHALL NOT EXCEED 0.010" (0.254mm) PER SIDE
34
0.004 – 0.010
(0.101 – 0.254)
0.050
(1.270)
BSC
SO8 1298
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.
11
11 Page | ||
| Páginas | Total 12 Páginas | |
| PDF Descargar | [ Datasheet LTC1453CS8.PDF ] | |
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