Datasheet

LTC2054/LTC2055
12
20545fc
TYPICAL APPLICATIONS
Ground Referred Precision Current Sources
Instrumentation Amplifi er with 100V Common Mode Input Voltage
Gain of 1001 Single Supply Instrumentation Amplifi er
–
+
LTC2054
LT1634-1.25
+
–
V
OUT
V
+
10k
1
2
3
4
5
5
R
SET
0 ≤ I
OUT
≤ 100µA
0.2V ≤ V
OUT
≤ (V
+
) – 1.5V
–
+
LTC2054
LT1634-1.25
+
–
V
OUT
V
–
1
2
3
4
R
SET
20545 TA03
I
OUT
= ———
R
SET
1.25V
I
OUT
= ———
R
SET
1.25V
0 ≤ I
OUT
≤ 100µA
(V
–
) + 1.5V ≤ V
OUT
≤ –1V
10k
–
+
1/2
LTC2055HV
–
+
1/2
LTC2055HV
1M
1M
1
3
2
20545 TA04
1k 1M
1k
1k
V
OUT
8
4
7
5
6
V
+
V
–
OUTPUT OFFSET ≤3mV
FOR 0.1% RESISTORS, CMRR = 54dB
+
–
V
IN
20545 TA05
+
–
+
–
R1
1M
R2
1k
R3
1k
R4 1M
V
+
2
8
1
4
3
6
7
5
V
OUT
–V
IN
+V
IN
1/2
LTC2055
1/2
LTC2055
OUTPUT DC OFFSET ≤ 6mV
FOR 0.1% RESISTORS, CMRR = 54dB
C1
0.1µF