LTC1051 View Datasheet(PDF) - Linear Technology
Part Name
Description
MFG CO.
LTC1051
Linear Technology
'LTC1051' PDF : 16 Pages View PDF
TYPICAL APPLICATIO S
LTC1051/LTC1053
Dual Instrumentation Amplifier
Six Decade Log Amplifier
0.0022µF
Q1
5V
Q1
22pF
10k
0.1%
VIN
2–
1/2
1nA < IIN <1mA
3
LTC1051
+
15.8k
1
0.1%
VOUT = LOG VIN –2V
3k
0.1%
0.1µF
7
2M 1N4148
1k
0.1%
0.1µF
2.5M 2.5V
8
6 0.1%
5V
1/2
LTC1051
5
4
LT1009
–5V
Q1: TEL LAB TYPE Q81
ADJUST 2M POR. FOR NONLINEARITIES
1051/53 AC05
+
LTC1043
7
8
INPUT 1
–
13
+
6
11
1µF
12
14
5
INPUT 2
2
1µF
3
– 18
15
16
17
4
5V
0.0047µF
5V
3
+
8
1µF
2
1/2
LTC1051
–
1
VOUT1
100k
1k
5
1µF
6
0.22µF
+
1/2
LTC1051
–
4
GAIN = 101V/DIV
7
VOUT2
100k
1k
0.22µF
CMRR >100dB
VOS ≅ 3µV
INPUT REFERRED NOISE ≅ 2µVP-P
1051/53 AC06
Linearized Platinum Signal Conditioner
5V
3
+
8
1/2
1
2
LTC1051
–
4
0.1µF
2k
7
8
250k*
10k*
274k*
50k
ZERO
ADJUST
8.25k*
5V
2.4k
LT1009
2.5V
4
5
6
11
1µF
1µF 887Ω
12
2
1µF
3
13
14
1/2 LTC1043
IK
RP
100Ω
AT 0°C
15
18
1/2 LTC1043
16
17
RP = ROSEMOUNT 118MFRTD
0.01µF
*1% FILM RESISTOR
TRIM SEQUENCE:
SET SENSOR TO 0°C VALUE. ADJUST ZERO FOR 0V OUT
SET SENSOR TO 100°C VALUE. ADJUST GAIN FOR 1.000V OUT
SET SENSOR TO 400°C VALUE. ADJUST LINEARITY FOR 4.000V OUT
REPEAT AS REQUIRED. FOR MORE INFORMATION REFER TO AN3
(LINEARITY CORRECTION LOOP)
0V TO 4V =
5
+
0°C TO 400°C
±0.05°C
1µF
6
1/2
LTC1051
–
7
1k
GAIN
ADJUST
5k
8.06k*
1k
1051/53 AC07
10513fa
13
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