Datasheet
12
LTC1040
1040fa
U
PACKAGE DESCRIPTIO
Linear Technology Corporation
1630 McCarthy Blvd., Milpitas, CA 95035-7417
(408) 432-1900
●
FAX: (408) 434-0507
●
www.linear.com
LW/TP 1202 1K REV A • PRINTED IN USA
LINEAR TECHNOLOGY CORPORATION 1991
Analog Multiplier/Divider
TYPICAL APPLICATIO S
U
Single + 5V Voltage-to-Frequency Converter
LTC1040 • TA11
f
OUT
(AVERAGE) = f
IN
±0.1% FS
f
OUT
f
IN
V
IN
V
REF
(5V)
V
IN
V
REF
1µF
5
6
7
8
10
1
9
18
4
100k
1/2
LTC1040
1/4 74C00
1/4 74C00
–
+
–
+
+
LTC1040 • TA10
5
6
7
8
14
17
12
13
16
18
3
15
10
9
18
4
4
16
5V
100k
V
C
V
OUT
V
B
*
V1
V2
V
A
–
–
+
+
1/2
LTC1040
LTC1043
10µF
10µF
10k
10k
V
OUT =
(V
A
+ V1 – V2) • V
C
V
B
ACCURACY = ±10mV NO TRIM
V
B
MUST BE > V
A
+ (V1 – V2)
*
+
+
SW Package
18-Lead Plastic Small Outline (Wide .300 Inch)
(Reference LTC DWG # 05-08-1620)
S18 (WIDE) 0502
NOTE 3
.447 – .463
(11.354 – 11.760)
NOTE 4
15
14 13
12
11
10
16
9
N/2
1
23
4
5
6
78
.394 – .419
(10.007 – 10.643)
1718
N
.037 – .045
(0.940 – 1.143)
.004 – .012
(0.102 – 0.305)
.093 – .104
(2.362 – 2.642)
.050
(1.270)
BSC
.014 – .019
(0.356 – 0.482)
TYP
0
° – 8° TYP
NOTE 3
.009 – .013
(0.229 – 0.330)
.016 – .050
(0.406 – 1.270)
.291 – .299
(7.391 – 7.595)
NOTE 4
× 45°
.010 – .029
(0.254 – 0.737)
.420
MIN
.325 ±.005
RECOMMENDED SOLDER PAD LAYOUT
.045 ±.005
N
1 2 3 N/2
.050 BSC
.030 ±.005
TYP
.005
(0.127)
RAD MIN
INCHES
(MILLIMETERS)
NOTE:
1. DIMENSIONS IN
2. DRAWING NOT TO SCALE
3. 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
4. THESE DIMENSIONS DO NOT INCLUDE MOLD FLASH OR PROTRUSIONS.
MOLD FLASH OR PROTRUSIONS SHALL NOT EXCEED .006" (0.15mm)