16
LT2078/LT2079
20789fa
Linear Technology Corporation
1630 McCarthy Blvd., Milpitas, CA 95035-7417
(408) 432-1900
●
FAX: (408) 434-0507
●
www.linear.com
LT/GP 0903 1K REV A • PRINTED IN USA
LINEAR TECHNOLOGY CORPORATION 1996
Platinum RTD Signal Conditioner with Curvature Correction
–
+
3
2
1
8
4
1/2 LT2078
LT1004-1.2
–
+
6
5
7
1/2 LT2078
13k*
12.3k*
1k**
1k**
1k**
R
P
1k AT
0°C
43.2k**
1.21M*
(SELECT AT 110°C)
5k
220°C
TRIM
1µF
10k*
50k
5°C
TRIM
1µF
0.02V TO 2.2V
OUT
=
2°C TO 220°C ±0.1°C
3V (LITHIUM)
R
P
**
*
= ROSEMOUNT 118MF
= TRW MAR-6 0.1%
= 1% METAL FILM
LT2078/79 • TA14
RELATED PARTS
PART NUMBER DESCRIPTION COMMENTS
LT1178/LT1179 Dual/Quad 17µA Max, Single Supply Precision Op Amps 70µV V
OS
Max and 2.5µV/°C Drift Max, 85kHz GBW, 0.04V/µs Slew
Rate, Input/Output Common Mode Includes Ground
LT1211/LT1212 14MHz, 7V/µs Single Supply Dual and Quad Precision Op Amps 275µV V
OS
Max, 6µV/°C Drift Max Input Voltage Range Includes Ground
LT1490/LT1491 Dual/ Quad Micropower Rail-to-Rail Input and Output Op Amps Single Supply Input Range: –0.4V to 44V, Micropower 50µA Amplifier,
Rail-to-Rail Input and Output, 200kHz GBW
LT2178/LT2179 Dual/Quad 17µA Max, Single Supply Precision Op Amps SO-8 and 14-Lead Standard Pinout, 70µV VOS Max, 85kHz GBW
TYPICAL APPLICATION
U
S Package
14-Lead Plastic Small Outline (Narrow .150 Inch)
(Reference LTC DWG # 05-08-1610)
PACKAGE DESCRIPTION
U
1
N
2
3
4
.150 – .157
(3.810 – 3.988)
NOTE 3
14
13
.337 – .344
(8.560 – 8.738)
NOTE 3
.228 – .244
(5.791 – 6.197)
12
11 10
9
5
6
7
N/2
8
.016 – .050
(0.406 – 1.270)
.010 – .020
(0.254 – 0.508)
× 45°
0° – 8° TYP
.008 – .010
(0.203 – 0.254)
S14 0502
.053 – .069
(1.346 – 1.752)
.014 – .019
(0.355 – 0.483)
TYP
.004 – .010
(0.101 – 0.254)
.050
(1.270)
BSC
.245
MIN
N
1 2 3 N/2
.160 ±.005
RECOMMENDED SOLDER PAD LAYOUT
.045 ±.005
.050 BSC
.030 ±.005
TYP
INCHES
(MILLIMETERS)
NOTE:
1. DIMENSIONS IN
2. DRAWING NOT TO SCALE
3. THESE DIMENSIONS DO NOT INCLUDE MOLD FLASH OR PROTRUSIONS.
MOLD FLASH OR PROTRUSIONS SHALL NOT EXCEED .006" (0.15mm)
