19
LTC1409
U
S
A
O
PP
L
IC
AT
I
WU
U
I FOR ATIO
DATA (N – 1)
DB11 TO DB0
CONVST
BUSY
LTC1409 • F17
t
CONV
t
6
t
13
t
7
CS = RD = 0
DATA N
DB11 TO DB0
DATA (N + 1)
DB11 TO DB0
DATA
t
6
t
5
t
8
Figure 17. Mode 1b. CONVST Starts a Conversion. Data Outputs Always Enabled
CONVST
BUSY
LTC1409 • F18
t
5
t
CONV
t
8
t
13
t
6
t
9
t
12
DATA N
DB11 TO DB0
t
11
t
10
RD
DATA
Figure 18. Mode 2. CONVST Starts a Conversion. Data is Read by RD
Figure 20. ROM Mode Timing
RD = CONVST
BUSY
LTC1409 • F20
t
CONV
t
6
DATA (N – 1)
DB11 TO DB0
DATA
DATA N
DB11 TO DB0
t
10
t
11
t
8
RD = CONVST
BUSY
LTC1409 • F19
t
CONV
t
6
DATA (N – 1)
DB11 TO DB0
DATA
DATA N
DB11 TO DB0
DATA (N + 1)
DB11 TO DB0
DATA N
DB11 TO DB0
t
11
t
8
t
10
t
7
Figure 19. Slow Memory Mode Timing
20
LTC1409
LINEAR TECHNOLOGY CORPORATION 1995
1409f LT/TP 0397 7K • PRINTED IN USA
U
PACKAGE
D
E
SC
R
I
PTI
O
Dimensions in inches (millimeters) unless otherwise noted.
Linear Technology Corporation
1630 McCarthy Blvd., Milpitas, CA 95035-7417
(408) 432-1900
FAX: (408) 434-0507
TELEX: 499-3977
www.linear-tech.com
G Package
28-Lead Plastic SSOP (0.209)
(LTC DWG # 05-08-1640)
G28 SSOP 0694
0.005 – 0.009
(0.13 – 0.22)
0° – 8°
0.022 – 0.037
(0.55 – 0.95)
0.205 – 0.212**
(5.20 – 5.38)
0.301 – 0.311
(7.65 – 7.90)
1234
5
6
7
8 9 10 11 12 1413
0.397 – 0.407*
(10.07 – 10.33)
2526 22 21 20 19 18
17
16 1523242728
0.068 – 0.078
(1.73 – 1.99)
0.002 – 0.008
(0.05 – 0.21)
0.0256
(0.65)
BSC
0.010 – 0.015
(0.25 – 0.38)
DIMENSIONS DO NOT INCLUDE MOLD FLASH. MOLD FLASH 
SHALL NOT EXCEED 0.006" (0.152mm) PER SIDE
DIMENSIONS DO NOT INCLUDE INTERLEAD FLASH. INTERLEAD 
FLASH SHALL NOT EXCEED 0.010" (0.254mm) PER SIDE
*
**
SW Package
28-Lead Plastic Small Outline (Wide 0.300)
(LTC DWG # 05-08-1620)
S28 (WIDE) 0996
0° – 8° TYP
NOTE 1
0.009 – 0.013
(0.229 – 0.330)
0.016 – 0.050
(0.406 – 1.270)
0.291 – 0.299**
(7.391 – 7.595)
× 45°
0.010 – 0.029
(0.254 – 0.737)
0.037 – 0.045
(0.940 – 1.143)
0.004 – 0.012
(0.102 – 0.305)
0.093 – 0.104
(2.362 – 2.642)
0.050
(1.270)
TYP
0.014 – 0.019
(0.356 – 0.482)
TYP
NOTE 1
0.697 – 0.712*
(17.70 – 18.08)
1
23
4
5
6
78
0.394 – 0.419
(10.007 – 10.643)
910
2526
11 12
22 21 20 19 18
17
16 152324
1413
2728
NOTE:
1. PIN 1 IDENT, NOTCH ON TOP AND CAVITIES ON THE BOTTOM OF PACKAGES ARE THE MANUFACTURING OPTIONS.
THE PART MAY BE SUPPLIED WITH OR WITHOUT ANY OF THE OPTIONS
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
*
**
RELATED PRODUCTS
PART NUMBER DESCRIPTION COMMENTS
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LTC1409CSW#TRPBF

Mfr. #:
Manufacturer:
Analog Devices Inc.
Description:
Analog to Digital Converters - ADC 12-bit, 800ksps SAR ADC with +/-2.5V Input
Lifecycle:
New from this manufacturer.
Delivery:
DHL FedEx Ups TNT EMS
Payment:
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