LTC1391IGN Linear Technology, LTC1391IGN Datasheet

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LTC1391IGN

Manufacturer Part Number
LTC1391IGN
Description
IC MULTIPLEXER 8X1 16SSOP
Manufacturer
Linear Technology
Datasheet

Specifications of LTC1391IGN

Function
Multiplexer
Circuit
1 x 8:1
On-state Resistance
75 Ohm
Voltage Supply Source
Dual Supply
Voltage - Supply, Single/dual (±)
±2.7 V ~ 5 V
Current - Supply
15µA
Operating Temperature
-40°C ~ 85°C
Mounting Type
Surface Mount
Package / Case
16-SSOP (0.150", 3.90mm Width)
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant

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FEATURES
TYPICAL APPLICATIO
APPLICATIO S
ANALOG
INPUTS
Low R
Single 2.7V to 5V Supply Operation
Low Charge Injection
Serial Digital Interface
Analog Inputs May Extend to Supply Rails
Low Leakage: 5nA Max
Guaranteed Break-Before-Make
TTL/CMOS Compatible for All Digital Inputs
Cascadable to Allow Additional Channels
Can Be Used as a Demultiplexer
Data Acquisition Systems
Communication Systems
Signal Multiplexing/Demultiplexing
SERIAL INTERFACE
TO MUX AND ADC
ON
1
2
3
4
5
6
7
8
: 45
S0
S1
S2
S3
S4
S5
S6
S7
LTC1391
DATA OUT
DATA IN
U
D
GND
CLK
CLK
OUT
D
CS
V
CS
V
IN
D
+
16
15
14
13
12
11
10
9
3V, 8-Channel 12-Bit ADC
U
0.1 F
OPTIONAL A/D
INPUT FILTER
1
2
3
4
V
+IN
–IN
GND
REF
Cascadable Serial Interface
LTC1285
DESCRIPTIO
CS/SHDN
The LTC
multiplexer. It features a serial digital interface that allows
several LTC1391s to be daisy-chained together, increas-
ing the number of MUX channels available using a single
digital port.
The LTC1391 features a typical R
switch leakage of 50pA and guaranteed break-before-
make operation. Charge injection is 10pC maximum. All
digital inputs are TTL and CMOS compatible when oper-
ated from single or dual supplies. The inputs can with-
stand 100mA fault current.
The LTC1391 is available in 16-pin PDIP, SSOP and
narrow SO packages. For applications requiring 2-way
serial data transmission, see the LTC1390 data sheet.
, LTC and LT are registered trademarks of Linear Technology Corporation.
D
CLK
V
OUT
CC
Analog Multiplexer with
8
7
6
5
3V
®
1391 TA01
1391 is a high performance CMOS 8-to-1 analog
1 F
U
300
250
200
150
100
50
0
–5 –4
T
A
= 25 C
–3
ANALOG INPUT VOLTAGE (V)
Analog Input Voltage
8-Channel
On-Resistance vs
–2
ON
V
V
–1
+
of 45 , a typical
= –5V
= 5V
0
LTC1391
1
2
sn1391 1391fas
V
V
+
= 2.7V
= 0V
3
4
1
1391 TA02
5

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LTC1391IGN Summary of contents

Page 1

... The inputs can with- stand 100mA fault current. The LTC1391 is available in 16-pin PDIP, SSOP and narrow SO packages. For applications requiring 2-way serial data transmission, see the LTC1390 data sheet. , LTC and LT are registered trademarks of Linear Technology Corporation. 3V OPTIONAL A ...

Page 2

... O = 4.75V 1.6mA TOP VIEW ORDER PART NUMBER + LTC1391CGN – LTC1391CN OUT LTC1391CS LTC1391IGN LTC1391IN 7 10 CLK LTC1391IS 8 9 GND N PACKAGE GN PART MARKING 16-LEAD PDIP S PACKAGE 1391 16-LEAD PLASTIC SO 1391I = 125 C, = 110 C/ W (GN 125 ( 125 C, = 100 C/ W (S) JA MIN TYP MAX – 5 ...

Page 3

ELECTRICAL CHARACTERISTICS temperature range, otherwise specifications are at T SYMBOL PARAMETER CONDITIONS Dynamic f Clock Frequency (Note 2) CLK t Enable Turn-On Time Enable Turn-Off Time V OFF S t Break-Before-Make Interval OPEN OIRR Off Isolation ...

Page 4

LTC1391 ELECTRICAL CHARACTERISTICS temperature range, otherwise specifications are at T SYMBOL PARAMETER CONDITIONS Dynamic f Clock Frequency (Note 2) CLK t Enable Turn-On Time Enable Turn-Off Time V OFF S t Break-Before-Make Interval (Note 4) OPEN ...

Page 5

W U TYPICAL PERFOR A CE CHARACTERISTICS Driver Output High Voltage vs Output Current 2.7V –0.5 – –1.0 –1.5 V – –2.0 V –2.5 –3.0 –3.5 –4.0 2.0 2.5 3.0 OUTPUT VOLTAGE (V) ...

Page 6

LTC1391 U U APPLICATIONS INFORMATION Multiplexer Operation Figure 1 shows the block diagram of the components within the LTC1391 required for MUX operation. The LTC1391 uses D to select the active channel and the chip IN select input, CS, to ...

Page 7

U U APPLICATIONS INFORMATION bits clocked into the LTC1391 shift register before CS is taken low select the MUX channel that is turned on. This allows a series of devices, with the D connected to the D of the next ...

Page 8

LTC1391 U TYPICAL APPLICATIONS 0.1 F BYPASS CAPACITORS FROM + V TO GND FOR EACH LTC1391 LTC1391 4 S3 ANALOG 5 INPUTS ...

Page 9

PACKAGE DESCRIPTIO 0.007 – 0.0098 (0.178 – 0.249) 0.016 – 0.050 (0.406 – 1.270) * 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 ...

Page 10

LTC1391 PACKAGE DESCRIPTIO 0.300 – 0.325 (7.620 – 8.255) 0.009 – 0.015 (0.229 – 0.381) +0.035 0.325 –0.015 +0.889 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

... A Supply Current, 10ppm/ C, Available in SOT- Supply Current, 300mV Dropout, 3ppm/ C Drift SO-8 Package, Micropower, Serial I/O Micropower, Multiplying V OUT www.linear.com + 5V V 12V 0 0 1391 TA03 TM Compatible , Swings from GND to V REF sn1391 1391fas LT/TP 0701 1.5K REV A • PRINTED IN USA LINEAR TECHNOLOGY CORPORATION 1995 ...

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