Datasheet

16
LT1007/LT1037
sn100737 100737fbs
LT/CPI 1101 1.5K REV B • PRINTED IN USA
 LINEAR TECHNOLOGY CORPORATION 1985
Strain Gauge Signal Conditioner with Bridge Excitation
6
4
7
3
2
7.5V
7.5V
–7.5V
6
4
7
–7.5V
1007/37 TA09
–
+
LT1007
–
+
LT1007
6
4
73
3
2
2
350Ω
BRIDGE
OUTPUT
0V TO 10V
301k*
301k*
GAIN
TRIM
50k
ZERO
TRIM
10k
REFERENCE
OUT
1µF
15V
–15V
499Ω*
5k
2.5V
LT1009
–
+
LT1007
*RN60C FILM RESISTOR
THE LT1007 IS CAPABLE OF PROVIDING EXCITATION CURRENT
DIRECTLY TO BIAS THE 350Ω BRIDGE AT 5V. WITH ONLY 5V ACROSS
THE BRIDGE (AS OPPOSED TO THE USUAL 10V) TOTAL POWER
DISSIPATION AND BRIDGE WARM-UP DRIFT IS REDUCED. THE BRIDGE
OUTPUT SIGNAL IS HALVED, BUT THE LT1007 CAN AMPLIFY THE
REDUCED SIGNAL ACCURATELY.
RELATED PARTS
PART NUMBER DESCRIPTION COMMENTS
LT1028 Ultralow Noise Precision Op Amp Lowest Noise 0.85nV/√Hz
LT1115 Ultralow Noise, Low distortion Audio Op Amp 0.002% THD, Max Noise 1.2mV/√Hz
LT1124/LT1125 Dual/Quad Low Noise, High Speed Precision Op Amps Similar to LT1007
LT1126/LT1127 Dual/Quad Decompensated Low Noise, High Speed Precision Op Amps Similar to LT1037
LT1498/LT1499 10MHz, 5V/µs, Dual/Quad Rail-to-Rail Input and Output
Precision C-Load
TM
Op Amps
C-Load is a trademark of Linear Technology Corporation.
U
TYPICAL APPLICATIO
Linear Technology Corporation
1630 McCarthy Blvd., Milpitas, CA 95035-7417
[phone]
●
FAX: [phone]
●
www.linear.com