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LTC1446IS8#PBF

P1-P3P4-P6P7-P9P10-P12
10
LTC1446/LTC1446L
TYPICAL APPLICATIONS N
U
An Autoranging 8-Channel ADC with Shutdown
LTC1296
V
CC
50k
74HC04
5V
5V
CS
22µF
µP
CLK
8 ANALOG
INPUT CHANNELS
D
OUT
D
IN
CH0
COM
SSO REF
–
CH7
REF
+
50k
0.1µF
100Ω
100Ω
LTC1446
CS/LD
CLK
D
OUT
D
IN
V
OUT B
GND
V
CC
1446/46L F03
V
OUT A
0.1µF
0.1µF
+
2N3906
This circuit shows how to use one LTC1446 to make an
autoranging ADC. The microprocessor sets the reference
span and the Common pin for the analog input by loading
the appropriate digital code into the LTC1446. V
OUT A
controls the Common pin for the analog inputs to the
LTC1296 and V
OUT B
controls the reference span by setting
the REF
+
pin on the LTC1296. The LTC1296 has a Shut-
down pin that goes low in shutdown mode. This will turn
off the PNP transistor supplying power to the LTC1446.
The resistor and capacitor on the LTC1446 outputs act as
a lowpass filter for noise.
11
LTC1446/LTC1446L
PACKAGE DESCRIPTION
U
Dimensions in inches (millimeters) unless otherwise noted.
1
2
3
4
0.150 – 0.157**
(3.810 – 3.988)
8
7
6
5
0.189 – 0.197*
(4.801 – 5.004)
0.228 – 0.244
(5.791 – 6.197)
0.016 – 0.050
0.406 – 1.270
0.010 – 0.020
(0.254 – 0.508)
× 45°
0°– 8° TYP
0.008 – 0.010
(0.203 – 0.254)
SO8 0695
0.053 – 0.069
(1.346 – 1.752)
0.014 – 0.019
(0.355 – 0.483)
0.004 – 0.010
(0.101 – 0.254)
0.050
(1.270)
BSC
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
*
**
N8 Package
8-Lead PDIP (Narrow 0.300)
(LTC DWG# 05-08-1510)
N8 0695
0.005
(0.127)
MIN
0.100 ± 0.010
(2.540 ± 0.254)
0.065
(1.651)
TYP
0.045 – 0.065
(1.143 – 1.651)
0.130 ± 0.005
(3.302 ± 0.127)
0.015
(0.380)
MIN
0.018 ± 0.003
(0.457 ± 0.076)
0.125
(3.175)
MIN
12
3
4
876
5
0.255 ± 0.015*
(6.477 ± 0.381)
0.400*
(10.160)
MAX
0.009 – 0.015
(0.229 – 0.381)
0.300 – 0.325
(7.620 – 8.255)
0.325
+0.025
–0.015
+0.635
–0.381
8.255
()
*THESE DIMENSIONS DO NOT INCLUDE MOLD FLASH OR PROTRUSIONS.
MOLD FLASH OR PROTRUSIONS SHALL NOT EXCEED 0.010 INCH (0.254mm)
S8 Package
8-Lead Plastic Small Outline (Narrow 0.150)
(LTC DWG # 05-08-1610)
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.
12
LTC1446/LTC1446L
Linear Technology Corporation
1630 McCarthy Blvd., Milpitas, CA 95035-7417
(408) 432-1900
●
FAX
: (408) 434-0507
●
TELEX
: 499-3977
1446lfa LT/LCG 0700 2K REV A • PRINTED IN USA
LINEAR TECHNOLOGY CORPORATION 1996
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: 4.5V to 5.5V Internal 2.048V Reference
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= 2.7V to 5.5V, V
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= 0V to 2.5V
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: 4.5V to 5.5V with Clear Pin
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CC
= 4.5V to 5.5V, V
OUT
= 0V to 4.095V
LTC1458L: V
CC
= 2.7V to 5.5V, V
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= 0V to 2.5V
LTC1654 Dual 14-Bit DAC in SSOP Variable Speed, Variable Gain, 1LSB DNL
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DAC in MSOP Low Cost, 0.75LSB DNL
LTC1662 Dual 10-Bit V
OUT
DAC in MSOP Ultra Low Power = 1.5µA Supply Current
P1-P3P4-P6P7-P9P10-P12

LTC1446IS8#PBF

Mfr. #:
Buy LTC1446IS8#PBF
Manufacturer:
Analog Devices Inc.
Description:
Digital to Analog Converters - DAC Dual 12-Bit Vout DAC in S08
Lifecycle:
New from this manufacturer.
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