LTC1051 View Datasheet(PDF) - Linear Technology
Part Name
Description
MFG CO.
LTC1051
Linear Technology
'LTC1051' PDF : 16 Pages View PDF
LTC1051/LTC1053
TYPICAL APPLICATIO S
Paralleling Choppers to Improve Noise
R2
NOTE: THIS CIRCUIT CAN ALSO BE USED AS A
DIFFERENCE AMPLIFIER FOR STRAIN GAUGES.
CONNECT R2/3 AND R1/3 FROM NONINVERTING
INPUTS, SHORTED TOGETHER, TO GROUND AND
VIN
R1
2–
1/4
1
TO SOURCE RESPECTIVELY.
R
R
3
LTC1053
+
5V
R2
R1
6–
1/4
7
R
5
LTC1053
+
13 – 4
1/4
12
LTC1053
+
11
0.1µF
14
VOUT
R2
–5V
0.1µF
R1
9–
1/4
8
R
10
LTC1053
+
VOUT/ VIN = 3(R2/R1); INPUT DC – 10Hz NOISE
≅ 0.8µVP-P = NOISE OF EACH PARALLELED OP AMP/√3
1051/53 AC02
Differential Voltage to Current Converter
3
V1
+
1/4
1
LTC1053
2–
10k
10k
10k
RG
10k
5–
13 –
1/4
12
V2
LTC1053
+
14
10k
1/4
6
LTC1053
+
7
• IOUT = 2(V2 – V1)/RG 10k
• BW = 100Hz
• IOUTMAX = 1mA
0.1µF
20k
5V
20k
9–
4
1/4
20k
10
LTC1053
+
11
0.1µF
8
–5V
10k
0.1µF
10k
0.1µF
IOUT
RLOAD
1051/53 AC03
Multiplexed Differential Thermometer
5V
2
7
K
LT1025A
GND
R–
4
5
100Ω
255k
1k
TYPE K
–
+
0.068µF
2–
1/4
LTC1053
3+
0.1µF
1 T2
100Ω
255k
1k
TYPE K
–
+
0.068µF
6–
1/4
LTC1053
5+
7 T1 S1
0.1µF
100Ω
255k
1k
0.068µF
TYPE K
–
+
9–
1/4
8
TREF
LTC1053
10 +
0.1µF
ABSOLUTE
TEMPERATURE
ABSOLUTE
TEMPERATURE
10k
5V
10k
13 –
4
1/4
14
10k
LTC1053
12 +
11
OUTPUT
(DIFFERENTIAL
TEMPERATURE)
10k
ALL FIXED RESISTORS ARE 1% METAL FILM
OUTPUT = TREF – T1 OR TREF – T2(10mV PER °C)
ACCURACY = (±0.1% FROM 25°C TO 150°C)
1051/53 AC04
10513fa
12
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