Datasheet

LTC1043
10
1043fa
Single 5V Supply, Ultra Precision
Instrumentation Amplifier
Precision Instrumentation Amplifier
Voltage Controlled Current Source with
Ground Referred Input and Output
LTC1043 • A10
0.0047
INPUT AND OUTPUT VOLTAGE RANGE INCLUDES GROUND.
INPUT REFERRED OFFSET ERRORS ARE TYPICALLY 3µV WITH
1µV OF NOISE
CMRR ~ 120dB
12
11
7
13
INPUT
OUTPUT
A
V
= 1000
10k
1µF1µF
100Ω
43k
0.1µF0.1µF4
1
8
6
7
5V
3
2
LTC1043
14
16 4
3
2
1µF
1µF
NONPOLARIZED
5
15
1N914
5V
0.22µF
99.9k
6
18
8
+
–
V
+
= 5V
–
+
17
≈ –0.5V
~
LTC1052
LTC1043 • A11
8
14
1µF
100Ω
V
IN
100Ω
INPUT
0V TO 2V
1
OUT
=
1/2 LTC1043
13
16
12
11
7
1k
4
1
8
5V
2
3
1µF
0.001µF
OPERATES FROM A SINGLE 5V SUPPLY
0.68µF
5V
4
–
+
17
1/2 LT1013
LTC1043 • A12
0.01µF
3
2
4
6
1µF
1µF
1µF
1M
CHOPPER AC AMPLIFIER PHASE
SENSITIVE
DEMODULATOR
DC
OUTPUT AMPLIFIER
1µF
100k
100k
100Ω
100k
OUTPUT
0.01
R2
100k
R1
100Ω
+ INPUT
– INPUT
1/2 LTC1043
5
15
16
5V
1µF
5V
–5V
2
3
4
7
6
13
5V
–5V
3
2
4
7
6
1/4 LTC1043
1/4 LTC1043
8
7
11
OFFSET = 10µV
DRIFT = 0.1µV/°C
FULL DIFFERENTIAL INPUT
CMRR = 140dB
OPEN LOOP GAIN > 10
8
GAIN = R2/R1 + 1
I
BIAS
= 1nA
18
17
–
+
LT1056
–
+
LT1056
12
14
–5V
TYPICAL APPLICATIO S
U
Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.