LT1007 Datasheet, PDF (16/16 Pages) Linear Technology – Low Noise, High Speed Precision Operational Amplifiers

LT1007/LT1037
TYPICAL APPLICATIONS
Strain Gauge Signal Conditioner with Bridge Excitation
5k
2.5V 3 ₊
7
LT1009 ₂ ^LT1007
–₄
–7.5V
350Ω
BRIDGE
7.5V
2– 7
LT1007
3+
4
–7.5V
7.5V
6
REFERENCE
OUT
15V
301k*
ZERO
TRIM
10k
3₊ 7
6
LT1007
2_–
4
1µF
–15V
6
*RN60C FILM RESISTOR
GAIN
TRIM
50k
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.
OUTPUT
0V TO 10V
301k*
499Ω*
1007/37 TA09
RELATED PARTS
PART NUMBER DESCRIPTION
LT1028
Ultralow Noise Precision Op Amp
LT1115
Ultralow Noise, Low distortion Audio Op Amp
LT1124/LT1125 Dual/Quad Low Noise, High Speed Precision Op Amps
LT1126/LT1127 Dual/Quad Decompensated Low Noise, High Speed Precision Op Amps
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.
COMMENTS
Lowest Noise 0.85mV/√Hz
0.002% THD, Max Noise 1.2mV/√Hz
Similar to LT1007
Similar to LT1037
16 Linear Technology Corporation
1630 McCarthy Blvd., Milpitas, CA 95035-7417^q [phone]
FAX: [phone]^qTELEX: 499-3977^q www.linear-tech.com
100737fa LT/TP 0297 5K REV A • PRINTED IN USA
© LINEAR TECHNOLOGY CORPORATION 1985